feat(chart): support fixed y-axis domains

README.md

@@ -12,6 +12,9 @@
 
 最新稳定版 Demo：<https://lqycustomsite.online/waveform-analysis/>
 
+本地运行 `pnpm dev` 后，可通过
+<http://127.0.0.1:5173/#/fixed-y-domain> 查看固定振幅上下限示例。
+
 ## 特性
 
 - Vue 3 Composition API + TypeScript，支持按需导入 `WaveformChart`
@@ -22,6 +25,7 @@
 - 缩放过程事件、缩放结束按可视区间加载和视口重置
 - 可选的空格拖拽平移，默认关闭并隔离多图表实例
 - 多系列图例、受控显隐、网格分页和最多四根 Y 轴
+- 自动 Y 轴范围，以及全局、按轨道或按系列配置的固定振幅范围
 - 按轨道控制水平/垂直网格线的显隐与颜色
 - 受控标注、右键编辑、拖拽避让和自定义颜色
 - 标题、图框、坐标轴、零值参考线、净图和渲染参数可配置
@@ -107,6 +111,8 @@ const data = ref<WaveformData>({
 | `minVisiblePoints`                | `number`                                    | `0`                                                     | 缩放后至少保留的不同 X 坐标数     |
 | `initialXDomain`                  | `[number, number]`                          | 未设置                                                  | 所有图框的初始 X 范围             |
 | `initialXDomains`                 | `Record<string, [number, number]>`          | 未设置                                                  | 按 track/series ID 配置初始范围   |
+| `yDomain`                         | `[number, number]`                          | 未设置                                                  | 所有波形的固定 Y 轴范围           |
+| `yDomains`                        | `Record<string, [number, number]>`          | 未设置                                                  | 按 track/series ID 配置固定范围   |
 | `grid`                            | `WaveformGridOptions`                       | `{ rowCount: 2, columnCount: 1, showPagination: true }` | 网格和分页                        |
 | `axes`                            | `WaveformAxesOptions`                       | 轴线均显示                                              | X/Y 轴基线显隐                    |
 | `rendering`                       | `WaveformRenderingOptions`                  | `{}`                                                    | 降采样与点/误差棒间距             |
@@ -114,6 +120,7 @@ const data = ref<WaveformData>({
 | `frameNumber`                     | `string \| number`                          | 未设置                                                  | 图框水印内容                      |
 | `zeroLine`                        | `WaveformZeroLineOptions`                   | `{ visible: false }`                                    | 零值参考线显隐与样式              |
 | `cleanView`                       | `boolean`                                   | `false`                                                 | 仅保留波形的净图模式              |
+| `presentationMode`                | `boolean`                                   | `false`                                                 | 禁用绘图区交互的展示模式          |
 | `annotations`                     | `WaveformAnnotation[]`                      | `[]`                                                    | 受控标注数据                      |
 | `annotationsVisible`              | `boolean`                                   | `true`                                                  | 标注图层显隐                      |
 | `interactionMode`                 | `'zoom' \| 'annotation'`                    | `'zoom'`                                                | 左键交互模式                      |
@@ -176,6 +183,38 @@ import 'waveform-analysis/style.css'
 </template>
 ```
 
+### 固定振幅上下限
+
+未传入 Y 轴范围时，组件继续根据当前可见系列及其误差棒自动计算范围。传入 `yDomain`
+后，所有波形使用同一个固定范围；超出范围的部分只在绘图区裁剪，不会过滤或修改原始数据：
+
+```vue
+<WaveformChart :data="chartData" :y-domain="[-80, 80]" />
+```
+
+多通道可以通过 `yDomains` 按稳定的 `trackId` 或 `seriesId` 分别配置：
+
+```vue
+<WaveformChart
+  :data="chartData"
+  :y-domain="[-100, 100]"
+  :y-domains="{
+    voltage: [-65, 65],
+    current: [-260, 260],
+  }"
+/>
+```
+
+范围优先级为 `trackId` 配置、`seriesId` 配置、全局 `yDomain`、数据自动范围。上下限必须
+是两个有限且不相等的数字；倒序范围会自动调整为升序，无效配置会回退到下一优先级。
+固定范围会精确作为坐标域使用，不会经过 D3 的 `nice()` 扩展。
+
+单值轴叠加模式会合并同一根轴上所有可见系列的有效范围；多值轴模式按系列分别使用配置，
+超过四根轴后复用第 4 根轴的系列会取范围并集。隐藏系列不参与公共范围合并。
+
+固定范围存在时，对应图框的 Y 轴不会被平移或视口重置覆盖；X 轴缩放、平移和重置保持原有
+行为。运行时更新或移除 `yDomain` / `yDomains` 会立即重新布局，移除后恢复自动范围。
+
 ### 缩放后按可视区间加载数据
 
 组件支持 Plotly 风格的矩形框选缩放：在 zoom 模式下按住鼠标左键拖拽，松开后同时缩放
@@ -471,6 +510,14 @@ tooltip 仍然可用，切换回普通模式后原有配置和标注不会丢失
 `interactionMode` 可选 `zoom` 或 `annotation`，默认使用缩放模式。右键绘图区可直接打开
 标注编辑器，无需切换交互模式。`zoomable`、`pannable` 和 `showTooltip` 可分别控制缩放、
 空格拖拽平移和 tooltip；平移默认关闭。
+
+展示场景可启用 `presentationMode`，统一禁用绘图区的 tooltip、缩放、平移、双击复位和
+标注交互。该模式不会隐藏任何图形内容，也不会禁用图例切换或分页；关闭后恢复原交互配置。
+
+```vue
+<WaveformChart :data="chartData" :presentation-mode="true" />
+```
+
 空数据或过滤后没有有效点时，组件会保留图框布局并显示“暂无有效波形数据”。
 
 ## 大数据渲染
@@ -580,7 +627,8 @@ X、Y 轴会根据各自完整显示域选择格式：最大绝对值在 `[0.01,
 - `src/index.ts`：组件库公开入口和工具函数导出
 - `src/components/WaveformChart.vue`：图表容器、缩放、tooltip、图例和标注编排
 - `src/components/{core,data,rendering,interaction,annotation}`：数据、布局、渲染和交互模块
-- `src/App.vue`：可交互 demo，`src/data` 中提供示例波形数据
+- `src/App.vue`：综合可交互 demo，`src/data` 中提供示例波形数据
+- `src/router.ts`：Demo 路由；`src/views/FixedYDomainDemo.vue` 为固定振幅范围示例
 
 ## 本地开发
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "waveform-analysis",
-  "version": "0.1.22",
+  "version": "0.1.25",
   "main": "./dist/index.cjs",
   "module": "./dist/index.js",
   "types": "./dist/types/index.d.ts",
@@ -14,6 +14,7 @@
   },
   "files": [
     "dist",
+    "src",
     "README.md"
   ],
   "sideEffects": [
@@ -37,6 +38,7 @@
   "dependencies": {
     "ant-design-vue": "3.2.20",
     "d3": "^7.9.0",
+    "vue-router": "^4.6.4",
     "vue3-colorpicker": "^2.3.0"
   },
   "peerDependencies": {

pnpm-lock.yaml

@@ -14,6 +14,9 @@ importers:
       d3:
         specifier: ^7.9.0
         version: 7.9.0
+      vue-router:
+        specifier: ^4.6.4
+        version: 4.6.4(vue@3.5.40(typescript@6.0.3))
       vue3-colorpicker:
         specifier: ^2.3.0
         version: 2.3.0(@aesoper/normal-utils@0.1.5)(@popperjs/core@2.11.8)(@vueuse/core@10.11.1(vue@3.5.40(typescript@6.0.3)))(gradient-parser@1.2.0)(lodash-es@4.18.1)(tinycolor2@1.6.0)(vue-types@4.2.1(vue@3.5.40(typescript@6.0.3)))(vue@3.5.40(typescript@6.0.3))
@@ -632,6 +635,9 @@ packages:
   '@vue/compiler-ssr@3.5.40':
     resolution: {integrity: sha512-rrE5xiXG663+vHCHa3J9p2z5OcBRjXmoqenprJxAFQxg5pSshzeBiCE6pu46axapRJ2Adk0YDA2BRZVjiHXnhg==}
 
+  '@vue/devtools-api@6.6.4':
+    resolution: {integrity: sha512-sGhTPMuXqZ1rVOk32RylztWkfXTRhuS7vgAKv0zjqk8gbsHkJ7xfFf+jbySxt7tWObEJwyKaHMikV/WGDiQm8g==}
+
   '@vue/language-core@3.3.7':
     resolution: {integrity: sha512-LzmkKinXAMMoh8Jfi/jMUSDUjuPdv8mynH5WJGKfXyZtDw3hQ6GBaoI6Bcnl/Xqlu32q/0Z6i/trp4VXykzyLw==}
 
@@ -1704,6 +1710,11 @@ packages:
     peerDependencies:
       eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
 
+  vue-router@4.6.4:
+    resolution: {integrity: sha512-Hz9q5sa33Yhduglwz6g9skT8OBPii+4bFn88w6J+J4MfEo4KRRpmiNG/hHHkdbRFlLBOqxN8y8gf2Fb0MTUgVg==}
+    peerDependencies:
+      vue: ^3.5.0
+
   vue-tsc@3.3.7:
     resolution: {integrity: sha512-+C+rgD49wAQ5bUTl2sp5a8Bzg4YoldMNXM+g7CFe604MYcQ8PrZPMQhIjJSzKXtPBCa+C5ayMipqjbA7splekQ==}
     hasBin: true
@@ -2378,6 +2389,8 @@ snapshots:
       '@vue/compiler-dom': 3.5.40
       '@vue/shared': 3.5.40
 
+  '@vue/devtools-api@6.6.4': {}
+
   '@vue/language-core@3.3.7':
     dependencies:
       '@volar/language-core': 2.4.28
@@ -3386,6 +3399,11 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  vue-router@4.6.4(vue@3.5.40(typescript@6.0.3)):
+    dependencies:
+      '@vue/devtools-api': 6.6.4
+      vue: 3.5.40(typescript@6.0.3)
+
   vue-tsc@3.3.7(typescript@6.0.3):
     dependencies:
       '@volar/typescript': 2.4.28

src/App.test.ts

@@ -92,19 +92,22 @@ describe('App workspace layout', { timeout: 20_000 }, () => {
     wrapper.unmount()
   })
 
-  it('passes clean view and zero-line controls to the chart', async () => {
+  it('passes clean view, presentation mode, and zero-line controls to the chart', async () => {
     const wrapper = mount(App)
     await flushPromises()
     const chart = wrapper.getComponent(WaveformChart)
 
     expect(chart.props('cleanView')).toBe(false)
+    expect(chart.props('presentationMode')).toBe(false)
     expect(chart.props('zeroLine')).toMatchObject({ visible: false, color: '#98a2b3', width: 1 })
 
     await wrapper.get('[aria-label="净图模式"]').trigger('click')
+    await wrapper.get('[aria-label="展示模式"]').trigger('click')
     await wrapper.get('[aria-label="显示零值参考线"]').trigger('click')
     await flushPromises()
 
     expect(chart.props('cleanView')).toBe(true)
+    expect(chart.props('presentationMode')).toBe(true)
     expect(chart.props('zeroLine')).toMatchObject({ visible: true, color: '#98a2b3', width: 1 })
     wrapper.unmount()
   })

src/App.vue

@@ -43,6 +43,7 @@ const yAxisLineVisible = ref(false)
 const annotations = ref<WaveformAnnotation[]>([])
 const annotationsVisible = ref(true)
 const cleanView = ref(false)
+const presentationMode = ref(false)
 const showTooltip = ref(true)
 const zeroLineVisible = ref(false)
 const zeroLineColor = ref('#98a2b3')
@@ -289,6 +290,7 @@ const controlPanelModel = reactive({
   overlayMode,
   showTooltip,
   cleanView,
+  presentationMode,
   selectedSeriesId,
   selectedLineStyle,
   lineStyleOptions,
@@ -350,6 +352,7 @@ const chartModel = reactive({
   frameStyle,
   axes,
   cleanView,
+  presentationMode,
   showTooltip,
   zeroLine,
   frameWatermarkVisible,

src/DemoRouterApp.vue

@@ -0,0 +1,14 @@
+<template>
+  <div class="demo-shell">
+    <header class="demo-shell__header">
+      <RouterLink class="demo-shell__brand" to="/">Waveform Analysis</RouterLink>
+      <nav class="demo-shell__nav" aria-label="示例导航">
+        <RouterLink to="/">综合示例</RouterLink>
+        <RouterLink to="/fixed-y-domain">固定振幅范围</RouterLink>
+      </nav>
+    </header>
+    <div class="demo-shell__content">
+      <RouterView />
+    </div>
+  </div>
+</template>

src/components/WaveformChart.css

@@ -104,6 +104,11 @@
   cursor: crosshair;
 }
 
+.waveform-chart--presentation .waveform-chart__overlay {
+  cursor: default;
+  pointer-events: none;
+}
+
 .waveform-chart__label,
 .waveform-chart__empty {
   fill: #595959;

src/components/WaveformChart.vue

@@ -26,6 +26,7 @@ const props = withDefaults(defineProps<WaveformChartProps>(), {
   legend: () => ({ position: 'top-right', orientation: 'auto' }),
   defaultHiddenSeriesIds: () => [],
   cleanView: false,
+  presentationMode: false,
   zeroLine: () => ({ visible: false }),
 })
 const emit = defineEmits<WaveformChartEmit>()

src/components/WaveformChartView.vue

@@ -13,6 +13,7 @@ const {
   displayMode,
   activeInteractionMode,
   isCleanView,
+  isPresentationMode,
   selection,
   containerStyle,
   overlayMode,
@@ -45,7 +46,7 @@ const {
   beginSharedViewportDrag,
   finishViewportDrag,
   cancelViewportDrag,
-  clearHover,
+  handlePointerLeave,
   handleAnnotationClick,
   handleAnnotationContextMenu,
   resolveFrameNumber,
@@ -107,12 +108,14 @@ const {
       `waveform-chart--interaction-${activeInteractionMode}`,
       {
         'waveform-chart--clean': isCleanView,
+        'waveform-chart--presentation': isPresentationMode,
         'waveform-chart--panning': selection?.mode === 'pan',
       },
     ]"
     :style="containerStyle"
     :data-display-mode="displayMode"
     :data-interaction-mode="activeInteractionMode"
+    :data-presentation-mode="isPresentationMode"
     :data-overlay-mode="overlayMode"
     :data-chart-left-margin="resolvedChartLeftMargin"
     :data-title-area-height="titleAreaHeight"
@@ -192,8 +195,8 @@ const {
           :ref="setSharedOverlayElement"
           class="waveform-chart__overlay waveform-chart__overlay--shared"
           :class="{
-            'is-zoomable': zoomable && isZoomMode,
+            'is-zoomable': !isPresentationMode && zoomable && isZoomMode,
-            'is-annotating': activeInteractionMode === 'annotation',
+            'is-annotating': !isPresentationMode && activeInteractionMode === 'annotation',
           }"
           :width="innerWidth"
           :height="innerHeight"
@@ -201,7 +204,7 @@ const {
           @pointerdown="beginSharedViewportDrag"
           @pointerup="finishViewportDrag"
           @pointercancel="cancelViewportDrag"
-          @pointerleave="clearHover"
+          @pointerleave="handlePointerLeave"
           @click="handleAnnotationClick"
           @contextmenu="handleAnnotationContextMenu"
         />
@@ -214,6 +217,7 @@ const {
           :clip-path-id="clipPathId"
           :inner-width="innerWidth"
           :zoomable="zoomable"
+          :interactive="!isPresentationMode"
           :display-mode="displayMode"
           :interaction-mode="activeInteractionMode"
           :frame-number="resolveFrameNumber(track.index)"
@@ -227,7 +231,7 @@ const {
           @pointer-down="beginViewportDrag($event, track.index, true)"
           @pointer-up="finishViewportDrag"
           @pointer-cancel="cancelViewportDrag"
-          @pointer-leave="clearHover"
+          @pointer-leave="handlePointerLeave"
           @click="handleAnnotationClick($event, track.index)"
           @contextmenu="handleAnnotationContextMenu($event, track.index)"
         />
@@ -236,7 +240,7 @@ const {
           :state="hoverState"
           :tracks="trackLayouts"
           :clip-path-id="clipPathId"
-          :visible="showTooltip"
+          :visible="showTooltip && !isPresentationMode"
         />
 
         <rect
@@ -253,6 +257,7 @@ const {
           v-if="!isCleanView"
           :annotations="renderedAnnotations"
           :visible="annotationsVisible"
+          :interactive="!isPresentationMode"
           @contextmenu="handleExistingAnnotationContextMenu"
           @drag-start="beginAnnotationDrag"
           @move="handleAnnotationMove"
@@ -318,7 +323,7 @@ const {
     />
 
     <WaveformAnnotationEditor
-      v-if="editorDraft && !isCleanView"
+      v-if="editorDraft && !isCleanView && !isPresentationMode"
       :annotation="editorDraft.annotation"
       :mode="editorDraft.mode"
       :series="editorSeries"
@@ -330,7 +335,7 @@ const {
     />
 
     <WaveformAnnotationContextMenu
-      v-if="!isCleanView"
+      v-if="!isCleanView && !isPresentationMode"
       :visible="contextMenu !== null"
       :x="contextMenu?.x || 0"
       :y="contextMenu?.y || 0"
@@ -342,7 +347,7 @@ const {
 
     <WaveformHoverHost
       :state="hoverState"
-      :visible="showTooltip"
+      :visible="showTooltip && !isPresentationMode"
       :time-unit="timeUnit"
       :container-width="chartWidth"
       :container-height="chartHeight"

src/components/annotation/WaveformAnnotationLayer.vue

@@ -7,9 +7,12 @@ import { ANNOTATION_TEXT_FONT, ANNOTATION_TEXT_LINE_HEIGHT } from './markup'
 interface Props {
   annotations: RenderedAnnotation[]
   visible: boolean
+  interactive?: boolean
 }
 
-const props = defineProps<Props>()
+const props = withDefaults(defineProps<Props>(), {
+  interactive: true,
+})
 const emit = defineEmits<{
   (event: 'contextmenu', annotationId: string, mouseEvent: MouseEvent): void
   (event: 'drag-start'): void
@@ -79,7 +82,7 @@ function scheduleDragFrame() {
 }
 
 function handlePointerDown(rendered: RenderedAnnotation, event: PointerEvent) {
-  if (event.button !== 0 || dragState) return
+  if (!props.interactive || event.button !== 0 || dragState) return
   event.preventDefault()
   event.stopPropagation()
   const target = event.currentTarget as SVGGElement | null
@@ -108,6 +111,7 @@ function handlePointerDown(rendered: RenderedAnnotation, event: PointerEvent) {
 }
 
 function handlePointerMove(event: PointerEvent) {
+  if (!props.interactive) return
   event.stopPropagation()
   if (!dragState || event.pointerId !== dragState.pointerId) return
   const deltaX = event.clientX - dragState.startX
@@ -119,6 +123,7 @@ function handlePointerMove(event: PointerEvent) {
 }
 
 function finishPointerDrag(event: PointerEvent) {
+  if (!props.interactive) return
   event.preventDefault()
   event.stopPropagation()
   if (!dragState || event.pointerId !== dragState.pointerId) return
@@ -181,6 +186,11 @@ function handlePointerCancel(event: PointerEvent) {
   event.preventDefault()
   event.stopPropagation()
   if (!dragState || event.pointerId !== dragState.pointerId) return
+  cancelActiveDrag()
+}
+
+function cancelActiveDrag() {
+  if (!dragState) return
   const state = dragState
   dragState = null
   dragOffsets.value = new Map(dragOffsets.value).set(state.annotationId, { x: 0, y: 0 })
@@ -188,10 +198,21 @@ function handlePointerCancel(event: PointerEvent) {
     cancelAnimationFrame(dragFrame)
     dragFrame = null
   }
+  if (state.target.hasPointerCapture(state.pointerId)) {
+    state.target.releasePointerCapture(state.pointerId)
+  }
   emit('drag-end', true)
 }
 
+watch(
+  () => props.interactive,
+  (interactive) => {
+    if (!interactive) cancelActiveDrag()
+  },
+)
+
 function handleContextMenu(annotationId: string, event: MouseEvent) {
+  if (!props.interactive) return
   event.preventDefault()
   event.stopPropagation()
   // 使用时间戳比较：如果 contextmenu 在拖动结束后 100ms 内触发，则抑制
@@ -206,7 +227,11 @@ function markerId(annotationId: string) {
 </script>
 
 <template>
-  <g v-if="props.visible" class="waveform-annotation-layer">
+  <g
+    v-if="props.visible"
+    class="waveform-annotation-layer"
+    :class="{ 'waveform-annotation-layer--interactive': props.interactive }"
+  >
     <g
       v-for="rendered in props.annotations"
       :key="rendered.annotation.id"
@@ -281,13 +306,13 @@ function markerId(annotationId: string) {
   pointer-events: none;
 }
 
-.waveform-annotation {
+.waveform-annotation-layer--interactive .waveform-annotation {
   pointer-events: auto;
   cursor: grab;
   touch-action: none;
 }
 
-.waveform-annotation:active {
+.waveform-annotation-layer--interactive .waveform-annotation:active {
   cursor: grabbing;
 }
 
@@ -300,6 +325,9 @@ function markerId(annotationId: string) {
 .waveform-annotation__box {
   stroke-width: 1;
   rx: 3;
+}
+
+.waveform-annotation-layer--interactive .waveform-annotation__box {
   pointer-events: auto;
 }
 

src/components/annotation/useWaveformChartAnnotations.ts

@@ -38,6 +38,7 @@ interface AnnotationContext {
   titleAreaHeight: ComputedRef<number>
   chartTopMargin: ComputedRef<number>
   activeInteractionMode: ComputedRef<WaveformInteractionMode | undefined>
+  isPresentationMode: ComputedRef<boolean>
 }
 
 interface AnnotationCandidateContext {
@@ -75,6 +76,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
     titleAreaHeight,
     chartTopMargin,
     activeInteractionMode,
+    isPresentationMode,
   } = context
 
   function toggleSeriesVisibility(seriesId: string) {
@@ -140,6 +142,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function changeDraftSeries(seriesId: string) {
+    if (isPresentationMode.value) return
     const draft = annotationInteraction.editorDraft.value
     const candidate = editorSeriesOptions.value.find((item) => item.seriesId === seriesId)
     const track = trackLayouts.value.find((item) =>
@@ -216,7 +219,13 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function handleAnnotationClick(event: MouseEvent, trackIndex?: number) {
-    if (!props.annotationsVisible || activeInteractionMode.value !== 'annotation') return
+    if (
+      isPresentationMode.value ||
+      !props.annotationsVisible ||
+      activeInteractionMode.value !== 'annotation'
+    ) {
+      return
+    }
     const candidateContext = resolveAnnotationCandidates(event, trackIndex)
     if (!candidateContext) return
     const nearby = nearbyCandidates(candidateContext.candidates)
@@ -238,7 +247,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function handleAnnotationContextMenu(event: MouseEvent, trackIndex?: number) {
-    if (!props.annotationsVisible) return
+    if (isPresentationMode.value || !props.annotationsVisible) return
     event.preventDefault()
     event.stopPropagation()
     const candidateContext = resolveAnnotationCandidates(event, trackIndex)
@@ -252,7 +261,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function handleExistingAnnotationContextMenu(annotationId: string, event: MouseEvent) {
-    if (!props.annotationsVisible || !container.value) return
+    if (isPresentationMode.value || !props.annotationsVisible || !container.value) return
     editorSeriesOptions.value = []
     const annotation = props.annotations.find((item) => item.id === annotationId)
     if (!annotation) return
@@ -270,6 +279,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function handleAnnotationMove(annotationId: string, offsetX: number, offsetY: number) {
+    if (isPresentationMode.value) return
     const annotation = props.annotations.find((item) => item.id === annotationId)
     if (!annotation || !Number.isFinite(offsetX) || !Number.isFinite(offsetY)) return
     emit(
@@ -281,6 +291,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function editContextAnnotation() {
+    if (isPresentationMode.value) return
     const menu = annotationInteraction.contextMenu.value
     const annotation = props.annotations.find((item) => item.id === menu?.annotationId)
     if (!annotation) return
@@ -302,6 +313,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function deleteContextAnnotation() {
+    if (isPresentationMode.value) return
     const annotationId = annotationInteraction.contextMenu.value?.annotationId
     const annotation = props.annotations.find((item) => item.id === annotationId)
     if (!annotation) return
@@ -314,6 +326,7 @@ export function useWaveformChartAnnotations(context: AnnotationContext) {
   }
 
   function confirmAnnotation(annotation: WaveformAnnotation) {
+    if (isPresentationMode.value) return
     const draft = annotationInteraction.editorDraft.value
     if (!draft) return
     if (draft.mode === 'add') {

src/components/core/fixedYDomainLayout.test.ts

@@ -0,0 +1,116 @@
+import { zoomIdentity } from 'd3'
+import { describe, expect, it } from 'vitest'
+
+import { DEFAULT_WAVEFORM_RENDERING_OPTIONS } from '../../core'
+import type { DisplaySeries, DisplayTrack } from './types'
+import { buildTrackLayouts, resolveYAxisSeriesGroups } from './layout'
+
+function series(id: string, minimum: number, maximum: number): DisplaySeries {
+  return {
+    id,
+    name: id,
+    color: '#1677ff',
+    lineType: 'linear',
+    lineStyle: 'solid',
+    pointType: 'none',
+    errorBar: { visible: false, width: 1.5, capWidth: 8 },
+    points: [
+      { x: 0, y: minimum },
+      { x: 1, y: maximum },
+    ],
+    xDomain: [0, 1],
+    yDomain: [minimum, maximum],
+    hasErrorPoints: false,
+  }
+}
+
+function track(seriesList: DisplaySeries[]): DisplayTrack {
+  return {
+    id: 'track',
+    series: seriesList,
+    visibleSeries: seriesList,
+    xDomain: [0, 1],
+    yDomain: [0, 100],
+  }
+}
+
+describe('fixed Y-domain layout', () => {
+  it('uses an exact global fixed domain without applying nice bounds', () => {
+    const sourceTrack = track([series('a', 0, 100)])
+    const result = buildTrackLayouts({
+      cells: [
+        {
+          slotIndex: 0,
+          row: 0,
+          column: 0,
+          left: 0,
+          top: 0,
+          width: 120,
+          height: 100,
+          plotHeight: 100,
+          cellHeight: 130,
+          xAxisBand: 30,
+          series: sourceTrack,
+        },
+      ],
+      grid: { rowCount: 1, columnCount: 1, showPagination: false, trackLines: {} },
+      displayMode: 'independent',
+      overlayMode: 'single-axis',
+      independentTransforms: [zoomIdentity],
+      sharedZoomDomain: [0, 1],
+      fixedYDomain: [3, 97],
+      timeUnit: 'ms',
+      rendering: DEFAULT_WAVEFORM_RENDERING_OPTIONS,
+      hideSecondaryLabels: false,
+      yAxisLabelX: -50,
+      showCompactEmptyTracks: false,
+    })[0]
+
+    expect(result?.yScale.domain()).toEqual([3, 97])
+    expect(result?.yAxes[0]?.tickValues).toContain(3)
+    expect(result?.yAxes[0]?.tickValues).toContain(97)
+    expect(result?.seriesPaths[0]?.yScale.domain()).toEqual([3, 97])
+  })
+
+  it('resolves track, series, and global fixed-domain precedence', () => {
+    const sourceTrack = track([series('a', 0, 10), series('b', 20, 30)])
+
+    expect(
+      resolveYAxisSeriesGroups(sourceTrack, 'single-axis', [-5, 5], {
+        a: [-10, 10],
+        track: [300, 100],
+      })[0]?.domain,
+    ).toEqual([100, 300])
+
+    expect(
+      resolveYAxisSeriesGroups(sourceTrack, 'single-axis', [-5, 5], {
+        a: [-10, 10],
+      })[0]?.domain,
+    ).toEqual([-10, 10])
+  })
+
+  it('keeps per-series fixed domains on separate axes and merges axis overflow', () => {
+    const sourceTrack = track([
+      series('a', 0, 1),
+      series('b', 10, 11),
+      series('c', 20, 21),
+      series('d', 30, 31),
+      series('e', 40, 41),
+    ])
+    const groups = resolveYAxisSeriesGroups(sourceTrack, 'multi-axis', undefined, {
+      a: [-1, 1],
+      b: [-2, 2],
+      c: [-3, 3],
+      d: [-4, 4],
+      e: [-5, 5],
+    })
+
+    expect(groups.map((group) => group.domain)).toEqual([
+      [-1, 1],
+      [-2, 2],
+      [-3, 3],
+      [-5, 5],
+    ])
+    expect(groups.every((group) => group.fixed)).toBe(true)
+  })
+})

src/components/core/layout.ts

@@ -4,6 +4,12 @@ import type { WaveformOverlayMode } from '../../types'
 import { formatScientificAxisExponent, formatScientificAxisLabel, paddedDomain } from '../../utils'
 import type { DisplaySeries, DisplayTrack, TrackLayout } from './types'
 import { MAX_MULTI_Y_AXIS_COUNT, Y_AXIS_EXPONENT_GAP } from './constants'
+import {
+  mergeYDomains,
+  resolveSeriesFixedYDomain,
+  resolveTrackFixedYDomain,
+  type WaveformYDomain,
+} from './yDomain'
 
 // 导出常量供外部使用
 export { MAX_MULTI_Y_AXIS_COUNT, Y_AXIS_EXPONENT_GAP } from './constants'
@@ -14,11 +20,12 @@ const Y_AXIS_OUTER_PADDING = 4
 const Y_AXIS_LABEL_GAP = 6
 const Y_AXIS_LABEL_BAND_WIDTH = 24
 
-interface YAxisSeriesGroup {
+export interface YAxisSeriesGroup {
   index: number
   side: 'left' | 'right'
   seriesList: DisplaySeries[]
   domain: [number, number]
+  fixed: boolean
 }
 
 function resolveAxisSides(axisCount: number): Array<'left' | 'right'> {
@@ -53,6 +60,7 @@ export function buildYAxisSeriesGroups(
     side: sides[index],
     seriesList: [] as DisplaySeries[],
     domain: [0, 1] as [number, number],
+    fixed: false,
   }))
 
   track.visibleSeries.forEach((series, index) => {
@@ -72,12 +80,35 @@ export function buildYAxisSeriesGroups(
   return grouped
 }
 
-export function axisTextMetrics(domain: [number, number]): {
+export function resolveYAxisSeriesGroups(
+  track: DisplayTrack,
+  overlayMode: WaveformOverlayMode,
+  yDomain?: WaveformYDomain,
+  yDomains?: Record<string, WaveformYDomain>,
+): YAxisSeriesGroup[] {
+  const trackDomain = resolveTrackFixedYDomain(track, yDomains)
+  return buildYAxisSeriesGroups(track, overlayMode).map((group) => {
+    if (trackDomain) return { ...group, domain: trackDomain, fixed: true }
+    const seriesDomains = group.seriesList.map(
+      (series) => resolveSeriesFixedYDomain(series, yDomain, yDomains) ?? series.yDomain,
+    )
+    const fixed = group.seriesList.some((series) =>
+      resolveSeriesFixedYDomain(series, yDomain, yDomains),
+    )
+    return fixed ? { ...group, domain: mergeYDomains(seriesDomains), fixed } : group
+  })
+}
+
+export function axisTextMetrics(
+  domain: [number, number],
+  nice = true,
+): {
   exponentLabel: string | null
   exponentWidth: number
   tickTextWidth: number
 } {
-  const scale = scaleLinear(domain, [1, 0]).nice()
+  const scale = scaleLinear(domain, [1, 0])
+  if (nice) scale.nice()
   const [axisMin, axisMax] = scale.domain()
   const values = scale.ticks(10)
   const maximumTickCharacters = Math.max(
@@ -92,15 +123,15 @@ export function axisTextMetrics(domain: [number, number]): {
   }
 }
 
-function axisExponentClearance(domain: [number, number]): number {
+function axisExponentClearance(domain: [number, number], nice: boolean): number {
-  const { exponentLabel, exponentWidth } = axisTextMetrics(domain)
+  const { exponentLabel, exponentWidth } = axisTextMetrics(domain, nice)
   return exponentLabel ? exponentWidth + Y_AXIS_EXPONENT_GAP : 0
 }
 
 export function measureYAxisGroupClearance(group: YAxisSeriesGroup): number {
   return (
-    axisTextMetrics(group.domain).tickTextWidth +
+    axisTextMetrics(group.domain, !group.fixed).tickTextWidth +
-    axisExponentClearance(group.domain) +
+    axisExponentClearance(group.domain, !group.fixed) +
     Y_AXIS_TICK_PADDING +
     Y_AXIS_LABEL_GAP +
     Y_AXIS_LABEL_BAND_WIDTH +
@@ -110,8 +141,8 @@ export function measureYAxisGroupClearance(group: YAxisSeriesGroup): number {
 
 function measureYAxisGroupTickClearance(group: YAxisSeriesGroup): number {
   return (
-    axisTextMetrics(group.domain).tickTextWidth +
+    axisTextMetrics(group.domain, !group.fixed).tickTextWidth +
-    axisExponentClearance(group.domain) +
+    axisExponentClearance(group.domain, !group.fixed) +
     Y_AXIS_TICK_PADDING +
     Y_AXIS_OUTER_PADDING
   )
@@ -120,8 +151,10 @@ function measureYAxisGroupTickClearance(group: YAxisSeriesGroup): number {
 export function measureTrackYAxisClearance(
   track: DisplayTrack,
   overlayMode: WaveformOverlayMode,
+  yDomain?: WaveformYDomain,
+  yDomains?: Record<string, WaveformYDomain>,
 ): { left: number; right: number } {
-  return buildYAxisSeriesGroups(track, overlayMode).reduce(
+  return resolveYAxisSeriesGroups(track, overlayMode, yDomain, yDomains).reduce(
     (clearance, group) => {
       clearance[group.side] +=
         overlayMode === 'multi-axis' || track.visibleSeries.length === 1

src/components/core/trackLayoutBuilder.ts

@@ -19,7 +19,7 @@ import {
   type GridCellGeometry,
   type NormalizedWaveformGridOptions,
 } from './grid'
-import { axisTextMetrics, buildYAxisSeriesGroups } from './layout'
+import { axisTextMetrics, resolveYAxisSeriesGroups } from './layout'
 import type { DisplaySeries, DisplayTrack, TrackLayout, WaveformYAxisLayout } from './types'
 import { Y_AXIS_EXPONENT_GAP } from './constants'
 import {
@@ -42,6 +42,8 @@ export interface BuildTrackLayoutsOptions {
   sharedZoomDomain: [number, number]
   initialXDomain?: [number, number]
   initialXDomains?: Record<string, [number, number]>
+  fixedYDomain?: [number, number]
+  fixedYDomains?: Record<string, [number, number]>
   yDomains?: Record<string, [number, number]>
   timeUnit: 's' | 'ms'
   rendering: ResolvedWaveformRenderingOptions
@@ -94,13 +96,18 @@ export function buildTrackLayouts(options: BuildTrackLayoutsOptions): TrackLayou
         : zoomIdentity
     const xScale = transform.rescaleX(baseXScale)
     const configuredYDomain = options.yDomains?.[displayTrack.id]
-    const yAxisGroups = buildYAxisSeriesGroups(displayTrack, options.overlayMode).map((group) => ({
+    const yAxisGroups = resolveYAxisSeriesGroups(
-      ...group,
+      displayTrack,
-      domain: configuredYDomain ?? group.domain,
+      options.overlayMode,
-    }))
+      options.fixedYDomain,
+      options.fixedYDomains,
+    ).map((group) =>
+      !group.fixed && configuredYDomain ? { ...group, domain: configuredYDomain } : group,
+    )
     const sideOffsets = { left: 0, right: 0 }
     const yAxes: WaveformYAxisLayout[] = yAxisGroups.map((group) => {
-      const scale = scaleLinear(group.domain, [cell.plotHeight, 0]).nice()
+      const scale = scaleLinear(group.domain, [cell.plotHeight, 0])
+      if (!group.fixed) scale.nice()
       const majorTicks = scale.ticks(Math.max(2, Math.floor(cell.plotHeight / 55)))
       const [axisStart, axisEnd] = scale.domain()
       const showAxisEnd = options.displayMode !== 'compact' || cell.row === 0
@@ -110,7 +117,10 @@ export function buildTrackLayouts(options: BuildTrackLayoutsOptions): TrackLayou
       const tickValues = Array.from(
         new Set([axisStart, ...visibleMajorTicks, ...(showAxisEnd ? [axisEnd] : [])]),
       )
-      const { exponentLabel, exponentWidth, tickTextWidth } = axisTextMetrics(group.domain)
+      const { exponentLabel, exponentWidth, tickTextWidth } = axisTextMetrics(
+        group.domain,
+        !group.fixed,
+      )
       const exponentClearance = exponentLabel ? exponentWidth + Y_AXIS_EXPONENT_GAP : 0
       const clearance =
         tickTextWidth +

src/components/core/useWaveformChartController.ts

@@ -6,6 +6,7 @@ import {
   shallowReactive,
   shallowRef,
   toRefs,
+  watch,
   watchEffect,
   type ComponentPublicInstance,
   type Ref,
@@ -68,6 +69,15 @@ export function useWaveformChartController(
   const annotationInteraction = useWaveformAnnotationInteraction()
   const editorSeriesOptions = ref<AnnotationSeriesCandidate[]>([])
   const hoverThrottle = useAnimationFrameThrottle()
+
+  watch(
+    [() => props.yDomain, () => props.yDomains],
+    () => {
+      sharedYDomains.value = {}
+      independentYDomains.value = {}
+    },
+    { deep: true },
+  )
   const selection = ref<ViewportSelectionState | null>(null)
   const spacePressed = ref(false)
   const pointerInsideChart = ref(false)
@@ -90,6 +100,7 @@ export function useWaveformChartController(
     chartWidth,
     chartHeight,
     isCleanView,
+    isPresentationMode,
     hiddenSeriesIdSet,
     resolvedTitleText,
     titleAreaReserved,
@@ -151,6 +162,7 @@ export function useWaveformChartController(
     innerHeight,
     hasChartArea,
     isZoomMode,
+    isPresentationMode,
     resolveInitialTrackDomain,
     cancelPendingHover: () => hover.cancelPendingHover(),
   })
@@ -174,6 +186,7 @@ export function useWaveformChartController(
     titleAreaHeight,
     chartTopMargin,
     activeInteractionMode,
+    isPresentationMode,
   })
 
   const viewport = useWaveformViewport({
@@ -192,6 +205,7 @@ export function useWaveformChartController(
     sharedYDomains,
     independentYDomains,
     isZoomMode,
+    isPresentationMode,
     editorSeriesOptions,
     resolveInitialTrackDomain,
     canZoomTrack: zoom.canZoomTrack,
@@ -214,6 +228,7 @@ export function useWaveformChartController(
     titleAreaHeight,
     chartTopMargin,
     sharedOverlayElement,
+    isPresentationMode,
     updateViewportDrag: viewport.updateViewportDrag,
     resolveTrackAtPointer: annotations.resolveTrackAtPointer,
   })
@@ -248,10 +263,12 @@ export function useWaveformChartController(
     independentYDomains,
     annotationInteraction,
     editorSeriesOptions,
+    isPresentationMode,
     clearHover: hover.clearHover,
     cancelAnnotation: annotations.cancelAnnotation,
     configureZoom: zoom.configureZoom,
     resetViewport: viewport.resetViewport,
+    cancelViewportDrag: viewport.cancelViewportDrag,
     cancelPendingHover: hover.cancelPendingHover,
     clearZoomBindings: zoom.clearZoomBindings,
   })

src/components/core/useWaveformChartLifecycle.ts

@@ -44,10 +44,12 @@ interface LifecycleContext {
   independentYDomains: Ref<Record<number, [number, number]>>
   annotationInteraction: ReturnType<typeof useWaveformAnnotationInteraction>
   editorSeriesOptions: Ref<AnnotationSeriesCandidate[]>
+  isPresentationMode: ComputedRef<boolean>
   clearHover: () => void
   cancelAnnotation: () => void
   configureZoom: () => void
   resetViewport: () => void
+  cancelViewportDrag: () => void
   cancelPendingHover: () => void
   clearZoomBindings: () => void
 }
@@ -94,16 +96,25 @@ export function useWaveformChartLifecycle(context: LifecycleContext) {
     independentYDomains,
     annotationInteraction,
     editorSeriesOptions,
+    isPresentationMode,
     clearHover,
     cancelAnnotation,
     configureZoom,
     resetViewport,
+    cancelViewportDrag,
     cancelPendingHover,
     clearZoomBindings,
   } = context
 
   function handleInteractionKeyDown(event: KeyboardEvent) {
-    if (event.code !== 'Space' || !props.pannable || !pointerInsideChart.value) return
+    if (
+      isPresentationMode.value ||
+      event.code !== 'Space' ||
+      !props.pannable ||
+      !pointerInsideChart.value
+    ) {
+      return
+    }
     if (isEditableTarget(event.target)) return
     spacePressed.value = true
     event.preventDefault()
@@ -145,6 +156,7 @@ export function useWaveformChartLifecycle(context: LifecycleContext) {
       innerWidth,
       innerHeight,
       () => props.zoomable,
+      isPresentationMode,
       () => props.minZoomSpan,
       () => props.initialXDomain,
       () => props.initialXDomains,
@@ -191,6 +203,16 @@ export function useWaveformChartLifecycle(context: LifecycleContext) {
     editorSeriesOptions.value = []
   })
 
+  watch(isPresentationMode, (enabled) => {
+    spacePressed.value = false
+    if (!enabled) return
+    cancelViewportDrag()
+    clearZoomBindings()
+    clearHover()
+    annotationInteraction.closeContextMenu()
+    cancelAnnotation()
+  })
+
   watch(
     () => chartSeries.value.map((series) => series.id).join('\u0000'),
     () => {

src/components/core/useWaveformLayout.ts

@@ -26,7 +26,12 @@ import {
   resolveGridCellGeometry,
   X_AXIS_BAND,
 } from './grid'
-import { buildTrackLayouts, measureTrackYAxisClearance, Y_AXIS_EXPONENT_GAP } from './layout'
+import {
+  buildTrackLayouts,
+  measureTrackYAxisClearance,
+  resolveYAxisSeriesGroups,
+  Y_AXIS_EXPONENT_GAP,
+} from './layout'
 import type { DisplaySeries, DisplayTrack, TrackLayout } from './types'
 import type { PreparedWaveformSeries } from './useWaveformData'
 import type { ResolvedWaveformChartProps } from './waveformChartTypes'
@@ -104,8 +109,12 @@ export function useWaveformLayout(context: LayoutContext) {
   const yAxisMetrics = computed(() => {
     const axisText = chartTracks.value
       .filter((track) => track.visibleSeries.length > 0)
-      .map((track) => {
+      .flatMap((track) =>
-        const scale = scaleLinear(track.yDomain, [1, 0]).nice()
+        resolveYAxisSeriesGroups(track, props.overlayMode, props.yDomain, props.yDomains),
+      )
+      .map((group) => {
+        const scale = scaleLinear(group.domain, [1, 0])
+        if (!group.fixed) scale.nice()
         const [axisMin, axisMax] = scale.domain()
         return {
           exponentLabel: formatScientificAxisExponent(axisMin, axisMax),
@@ -165,7 +174,12 @@ export function useWaveformLayout(context: LayoutContext) {
   const multiAxisClearance = computed(() =>
     chartTracks.value.reduce(
       (maximum, track) => {
-        const clearance = measureTrackYAxisClearance(track, props.overlayMode)
+        const clearance = measureTrackYAxisClearance(
+          track,
+          props.overlayMode,
+          props.yDomain,
+          props.yDomains,
+        )
         return {
           left: Math.max(maximum.left, clearance.left),
           right: Math.max(maximum.right, clearance.right),
@@ -281,6 +295,8 @@ export function useWaveformLayout(context: LayoutContext) {
       sharedZoomDomain: sharedZoomDomain.value,
       initialXDomain: props.initialXDomain ? initialXDomain.value : undefined,
       initialXDomains: props.initialXDomains,
+      fixedYDomain: props.yDomain,
+      fixedYDomains: props.yDomains,
       yDomains:
         props.displayMode === 'independent'
           ? Object.fromEntries(

src/components/core/useWaveformPresentation.ts

@@ -49,6 +49,7 @@ export function useWaveformPresentation(context: PresentationContext) {
     height: fixedHeight.value === undefined ? '100%' : `${fixedHeight.value}px`,
   }))
   const isCleanView = computed(() => props.cleanView === true)
+  const isPresentationMode = computed(() => props.presentationMode === true)
   const resolvedZeroLine = computed(() => {
     const width = props.zeroLine.width
     return {
@@ -178,6 +179,7 @@ export function useWaveformPresentation(context: PresentationContext) {
     chartHeight,
     containerStyle,
     isCleanView,
+    isPresentationMode,
     resolvedZeroLine,
     legendBackgroundColor,
     legendInteractive,

src/components/core/waveformChartTypes.ts

@@ -31,6 +31,8 @@ export interface WaveformChartProps {
   minVisiblePoints?: number
   initialXDomain?: [number, number]
   initialXDomains?: Record<string, [number, number]>
+  yDomain?: [number, number]
+  yDomains?: Record<string, [number, number]>
   timeUnit?: 's' | 'ms'
   frameNumber?: string | number
   frameStyle?: WaveformFrameStyle
@@ -45,6 +47,7 @@ export interface WaveformChartProps {
   hiddenSeriesIds?: string[]
   defaultHiddenSeriesIds?: string[]
   cleanView?: boolean
+  presentationMode?: boolean
   zeroLine?: WaveformZeroLineOptions
 }
 
@@ -65,6 +68,7 @@ type DefaultedProp =
   | 'legend'
   | 'defaultHiddenSeriesIds'
   | 'cleanView'
+  | 'presentationMode'
   | 'zeroLine'
 
 export type ResolvedWaveformChartProps = Readonly<

src/components/core/yDomain.test.ts

@@ -0,0 +1,56 @@
+import { describe, expect, it } from 'vitest'
+
+import type { DisplayTrack } from './types'
+import { hasFixedYDomainForTrack, mergeYDomains, normalizeYDomain } from './yDomain'
+
+const track: DisplayTrack = {
+  id: 'shared-track',
+  series: [],
+  visibleSeries: [
+    {
+      id: 'channel-a',
+      name: 'A',
+      color: '#1677ff',
+      lineType: 'linear',
+      lineStyle: 'solid',
+      pointType: 'none',
+      errorBar: { visible: false, width: 1.5, capWidth: 8 },
+      points: [],
+      xDomain: [0, 1],
+      yDomain: [0, 1],
+      hasErrorPoints: false,
+    },
+  ],
+  xDomain: [0, 1],
+  yDomain: [0, 1],
+}
+
+describe('fixed Y domains', () => {
+  it('normalizes valid reversed domains', () => {
+    expect(normalizeYDomain([97, 3])).toEqual([3, 97])
+    expect(normalizeYDomain([-10, 10])).toEqual([-10, 10])
+  })
+
+  it.each([undefined, [1, 1], [Number.NaN, 1], [0, Number.POSITIVE_INFINITY]])(
+    'rejects an invalid domain: %j',
+    (domain) => {
+      expect(normalizeYDomain(domain as [number, number] | undefined)).toBeUndefined()
+    },
+  )
+
+  it('detects valid track, series, and global configuration only', () => {
+    expect(hasFixedYDomainForTrack(track, [-1, 1])).toBe(true)
+    expect(hasFixedYDomainForTrack(track, undefined, { 'shared-track': [-2, 2] })).toBe(true)
+    expect(hasFixedYDomainForTrack(track, undefined, { 'channel-a': [-3, 3] })).toBe(true)
+    expect(hasFixedYDomainForTrack(track, [0, 0], { 'channel-a': [1, 1] })).toBe(false)
+  })
+
+  it('merges configured and automatic series domains without padding', () => {
+    expect(
+      mergeYDomains([
+        [3, 97],
+        [-20, 40],
+      ]),
+    ).toEqual([-20, 97])
+  })
+})

src/components/core/yDomain.ts

@@ -0,0 +1,50 @@
+import type { DisplaySeries, DisplayTrack } from './types'
+
+export type WaveformYDomain = [number, number]
+
+export function normalizeYDomain(
+  domain: readonly [number, number] | undefined,
+): WaveformYDomain | undefined {
+  if (
+    !domain ||
+    !Number.isFinite(domain[0]) ||
+    !Number.isFinite(domain[1]) ||
+    domain[0] === domain[1]
+  ) {
+    return undefined
+  }
+  return domain[0] < domain[1] ? [domain[0], domain[1]] : [domain[1], domain[0]]
+}
+
+export function resolveTrackFixedYDomain(
+  track: Pick<DisplayTrack, 'id'>,
+  yDomains?: Record<string, WaveformYDomain>,
+): WaveformYDomain | undefined {
+  return normalizeYDomain(yDomains?.[track.id])
+}
+
+export function resolveSeriesFixedYDomain(
+  series: Pick<DisplaySeries, 'id'>,
+  yDomain?: WaveformYDomain,
+  yDomains?: Record<string, WaveformYDomain>,
+): WaveformYDomain | undefined {
+  return normalizeYDomain(yDomains?.[series.id]) ?? normalizeYDomain(yDomain)
+}
+
+export function hasFixedYDomainForTrack(
+  track: Pick<DisplayTrack, 'id' | 'visibleSeries'>,
+  yDomain?: WaveformYDomain,
+  yDomains?: Record<string, WaveformYDomain>,
+): boolean {
+  return Boolean(
+    resolveTrackFixedYDomain(track, yDomains) ||
+    track.visibleSeries.some((series) => resolveSeriesFixedYDomain(series, yDomain, yDomains)),
+  )
+}
+
+export function mergeYDomains(domains: readonly WaveformYDomain[]): WaveformYDomain {
+  return [
+    Math.min(...domains.map((domain) => domain[0])),
+    Math.max(...domains.map((domain) => domain[1])),
+  ]
+}

src/components/interaction/useWaveformHover.ts

@@ -23,6 +23,7 @@ interface HoverContext {
   titleAreaHeight: ComputedRef<number>
   chartTopMargin: ComputedRef<number>
   sharedOverlayElement: ShallowRef<SVGRectElement | undefined>
+  isPresentationMode: ComputedRef<boolean>
   updateViewportDrag: (event: PointerEvent) => void
   resolveTrackAtPointer: (pointerX: number, pointerY: number) => TrackLayout | undefined
 }
@@ -42,6 +43,7 @@ export function useWaveformHover(context: HoverContext) {
     titleAreaHeight,
     chartTopMargin,
     sharedOverlayElement,
+    isPresentationMode,
     updateViewportDrag,
     resolveTrackAtPointer,
   } = context
@@ -62,6 +64,7 @@ export function useWaveformHover(context: HoverContext) {
     trackIndex: number | null,
     position: { x: number; y: number },
   ) => {
+    if (isPresentationMode.value) return
     if (!hoveredPointsMatch(nextPoints)) hoverState.points = nextPoints
     hoverState.trackIndex = trackIndex
     hoverState.position = position
@@ -73,6 +76,9 @@ export function useWaveformHover(context: HoverContext) {
     hoverState.trackIndex = null
     emit('point-hover', null)
   }
+  const handlePointerLeave = () => {
+    if (!isPresentationMode.value) clearHover()
+  }
   const createHoveredSeriesPoint = (
     series: DisplaySeries,
     trackIndex: number,
@@ -103,6 +109,7 @@ export function useWaveformHover(context: HoverContext) {
     series.points[pointBisector.center(series.points, xValue)]
 
   const handleIndependentPointerMove = (event: PointerEvent, trackIndex: number) => {
+    if (isPresentationMode.value) return
     if (selection.value?.trackIndex === trackIndex && selection.value.independent) {
       updateViewportDrag(event)
       return
@@ -128,6 +135,7 @@ export function useWaveformHover(context: HoverContext) {
     })
   }
   const handleSharedPointerMove = (event: PointerEvent) => {
+    if (isPresentationMode.value) return
     if (selection.value?.overlay === event.currentTarget) {
       updateViewportDrag(event)
       return
@@ -161,6 +169,7 @@ export function useWaveformHover(context: HoverContext) {
   return {
     cancelPendingHover,
     clearHover,
+    handlePointerLeave,
     beginAnnotationDrag,
     endAnnotationDrag,
     handleIndependentPointerMove,

src/components/interaction/useWaveformViewport.ts

@@ -3,6 +3,7 @@ import { computed, nextTick, type ComputedRef, type Ref, type ShallowRef } from
 
 import { MINIMUM_SELECTION_SIZE } from '../core/constants'
 import type { DisplayTrack, TrackLayout } from '../core/types'
+import { hasFixedYDomainForTrack } from '../core/yDomain'
 import type {
   ResolvedWaveformChartProps,
   ViewportSelectionState,
@@ -26,6 +27,7 @@ interface ViewportContext {
   sharedYDomains: Ref<Record<string, [number, number]>>
   independentYDomains: Ref<Record<number, [number, number]>>
   isZoomMode: ComputedRef<boolean>
+  isPresentationMode: ComputedRef<boolean>
   editorSeriesOptions: Ref<AnnotationSeriesCandidate[]>
   resolveInitialTrackDomain: (track: TrackLayout) => [number, number]
   canZoomTrack: (track: TrackLayout) => boolean
@@ -53,6 +55,7 @@ export function useWaveformViewport(context: ViewportContext) {
     sharedYDomains,
     independentYDomains,
     isZoomMode,
+    isPresentationMode,
     editorSeriesOptions,
     resolveInitialTrackDomain,
     canZoomTrack,
@@ -131,6 +134,7 @@ export function useWaveformViewport(context: ViewportContext) {
       ]),
     )
   const beginViewportDrag = (event: PointerEvent, trackIndex: number, independent: boolean) => {
+    if (isPresentationMode.value) return
     const panRequested = props.pannable && spacePressed.value
     if ((!props.zoomable && !panRequested) || !isZoomMode.value || event.button !== 0) return
     const overlay = event.currentTarget as SVGRectElement
@@ -187,9 +191,13 @@ export function useWaveformViewport(context: ViewportContext) {
     const nextIndependentDomains = { ...independentYDomains.value }
     const nextSharedDomains = { ...sharedYDomains.value }
     targets.forEach((target) => {
+      const chartTrack = chartTracks.value.find((item) => item.id === target.id)
+      if (chartTrack && hasFixedYDomainForTrack(chartTrack, props.yDomain, props.yDomains)) {
+        return
+      }
       const key = target.series.trackId ?? target.series.id
       const source = active.yDomains[key] ?? (target.yScale.domain() as [number, number])
-      const boundary = chartTracks.value.find((item) => item.id === key)?.yDomain ?? source
+      const boundary = chartTrack?.yDomain ?? source
       const ySpan = source[1] - source[0]
       const nextY = clampDomain(
         [source[0] + (dy / height) * ySpan, source[1] + (dy / height) * ySpan],
@@ -203,6 +211,7 @@ export function useWaveformViewport(context: ViewportContext) {
     emit('zoom-change', nextX)
   }
   const updateViewportDrag = (event: PointerEvent) => {
+    if (isPresentationMode.value) return
     const active = selection.value
     if (!active || event.pointerId !== active.pointerId) return
     const track = trackLayouts.value.find((item) => item.index === active.trackIndex)
@@ -285,6 +294,10 @@ export function useWaveformViewport(context: ViewportContext) {
     void nextTick(configureZoom)
   }
   const finishViewportDrag = (event: PointerEvent) => {
+    if (isPresentationMode.value) {
+      cancelViewportDrag()
+      return
+    }
     const active = selection.value
     if (!active || event.pointerId !== active.pointerId) return
     updateViewportDrag(event)
@@ -319,7 +332,7 @@ export function useWaveformViewport(context: ViewportContext) {
     void nextTick(configureZoom)
   }
   const requestViewportReset = (event: MouseEvent) => {
-    if (!props.zoomable || !isZoomMode.value) return
+    if (isPresentationMode.value || !props.zoomable || !isZoomMode.value) return
     event.preventDefault()
     resetViewport()
     emit('zoom-reset')

src/components/interaction/useWaveformZoom.ts

@@ -29,6 +29,7 @@ interface ZoomContext {
   innerHeight: ComputedRef<number>
   hasChartArea: ComputedRef<boolean>
   isZoomMode: ComputedRef<boolean>
+  isPresentationMode: ComputedRef<boolean>
   resolveInitialTrackDomain: (track: TrackLayout) => [number, number]
   cancelPendingHover: () => void
 }
@@ -50,6 +51,7 @@ export function useWaveformZoom(context: ZoomContext) {
     innerHeight,
     hasChartArea,
     isZoomMode,
+    isPresentationMode,
     resolveInitialTrackDomain,
     cancelPendingHover,
   } = context
@@ -67,7 +69,7 @@ export function useWaveformZoom(context: ZoomContext) {
 
   const scheduleZoomCommit = () => zoomThrottle.schedule(commitPendingZoom)
   const handleSharedZoom = (event: D3ZoomEvent<SVGRectElement, unknown>) => {
-    if (synchronizingZoomTransform) return
+    if (synchronizingZoomTransform || isPresentationMode.value) return
     cancelPendingHover()
     pendingSharedZoomTransform = event.transform
     pendingSharedZoomGesture = 'wheel'
@@ -78,7 +80,7 @@ export function useWaveformZoom(context: ZoomContext) {
     event: D3ZoomEvent<SVGRectElement, unknown>,
     trackIndex: number,
   ) => {
-    if (synchronizingZoomTransform) return
+    if (synchronizingZoomTransform || isPresentationMode.value) return
     cancelPendingHover()
     pendingIndependentZoomTransforms.set(trackIndex, event.transform)
     pendingIndependentZoomGestures.set(trackIndex, 'wheel')
@@ -86,6 +88,10 @@ export function useWaveformZoom(context: ZoomContext) {
     scheduleWheelZoomEnd()
   }
   function commitPendingZoom() {
+    if (isPresentationMode.value) {
+      cancelPendingZoom()
+      return
+    }
     if (pendingSharedZoomTransform) {
       const transform = pendingSharedZoomTransform
       pendingSharedZoomTransform = null
@@ -233,7 +239,13 @@ export function useWaveformZoom(context: ZoomContext) {
   }
   const configureZoom = () => {
     clearZoomBindings()
-    if (!props.zoomable || !isZoomMode.value || !hasChartArea.value || !trackLayouts.value.length) {
+    if (
+      isPresentationMode.value ||
+      !props.zoomable ||
+      !isZoomMode.value ||
+      !hasChartArea.value ||
+      !trackLayouts.value.length
+    ) {
       return
     }
     if (props.displayMode === 'independent') {

src/components/rendering/WaveformTrack.css

@@ -70,6 +70,11 @@
   cursor: crosshair;
 }
 
+.waveform-track__overlay.is-presentation {
+  cursor: default;
+  pointer-events: none;
+}
+
 .waveform-track__zero-line {
   fill: none;
   pointer-events: none;

src/components/rendering/WaveformTrack.vue

@@ -13,6 +13,7 @@ interface Props {
   clipPathId: string
   innerWidth: number
   zoomable: boolean
+  interactive?: boolean
   displayMode: WaveformDisplayMode
   interactionMode?: WaveformInteractionMode
   frameNumber?: string | number
@@ -38,6 +39,7 @@ interface Emits {
 
 const props = withDefaults(defineProps<Props>(), {
   interactionMode: 'zoom',
+  interactive: true,
   cleanView: false,
   zeroLine: () => ({ visible: false, color: '#98a2b3', width: 1, dash: '6 4' }),
 })
@@ -116,9 +118,11 @@ const resolvedFrameStyle = computed(() => {
       v-if="!track.isEmpty && track.hasVisibleSeries && displayMode === 'independent'"
       class="waveform-track__overlay waveform-track__overlay--independent waveform-chart__overlay waveform-chart__overlay--independent"
       :class="{
-        'is-zoomable': zoomable && interactionMode === 'zoom',
+        'is-zoomable': interactive && zoomable && interactionMode === 'zoom',
-        'is-annotating': interactionMode === 'annotation',
+        'is-annotating': interactive && interactionMode === 'annotation',
+        'is-presentation': !interactive,
       }"
+      :data-interactive="interactive"
       :data-independent-overlay-index="track.index"
       :width="track.width ?? innerWidth"
       :height="track.height"

src/components/waveformChartCases/layoutAndDomains.test.ts

@@ -294,6 +294,31 @@ describe('WaveformChart', () => {
     expect(wrapper.get('.waveform-chart__axis-endpoint--end').text()).toBe('1.00')
   })
 
+  it('reacts to exact fixed Y-domain props and returns to automatic bounds', async () => {
+    const wrapper = await mountSizedChart({
+      kind: 'points',
+      points: [
+        { x: 0, y: 0 },
+        { x: 1, y: 100 },
+      ],
+    })
+    const yTickLabels = () =>
+      wrapper
+        .get('.waveform-chart__axis--y')
+        .findAll('.tick text')
+        .map((tick) => tick.text())
+
+    await wrapper.setProps({ yDomain: [3, 97] })
+    await flushPromises()
+    expect(yTickLabels()).toContain('3.00')
+    expect(yTickLabels()).toContain('97.00')
+
+    await wrapper.setProps({ yDomain: undefined })
+    await flushPromises()
+    expect(yTickLabels()).not.toContain('3.00')
+    expect(yTickLabels()).not.toContain('97.00')
+  })
+
   it('keeps annotations bound to their channel while paging', async () => {
     const wrapper = await mountSizedChart(gridSeries(3), {
       grid: { rowCount: 1, columnCount: 1 },

src/components/waveformChartCases/presentationMode.test.ts

@@ -0,0 +1,306 @@
+import { flushPromises } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+
+import { flushAnimationFrames } from '../../test/setup'
+import { mountSizedChart } from '../../test/waveformChart'
+import type { WaveformData, WaveformDisplayMode } from '../data/types'
+
+const presentationData: WaveformData = {
+  kind: 'series',
+  series: [
+    {
+      id: 'low',
+      trackId: 'shared',
+      name: '低量程',
+      data: {
+        kind: 'points',
+        points: [
+          { x: 0, y: 0 },
+          { x: 1, y: 10 },
+          { x: 2, y: 5 },
+        ],
+      },
+    },
+    {
+      id: 'high',
+      trackId: 'shared',
+      name: '高量程',
+      data: {
+        kind: 'points',
+        points: [
+          { x: 0, y: 100 },
+          { x: 1, y: 200 },
+          { x: 2, y: 150 },
+        ],
+      },
+    },
+    {
+      id: 'other',
+      name: '其他通道',
+      data: {
+        kind: 'points',
+        points: [
+          { x: 0, y: -1 },
+          { x: 1, y: 1 },
+          { x: 2, y: 0 },
+        ],
+      },
+    },
+  ],
+}
+
+function setOverlayBounds(overlay: ReturnType<Awaited<ReturnType<typeof mountSizedChart>>['get']>) {
+  const width = Number(overlay.attributes('width'))
+  const height = Number(overlay.attributes('height'))
+  Object.defineProperty(overlay.element, 'getBoundingClientRect', {
+    value: () => ({ left: 0, top: 0, width, height }),
+  })
+  return { width, height }
+}
+
+function dispatchPointer(
+  element: Element,
+  type: string,
+  options: MouseEventInit & { pointerId: number },
+) {
+  const event = new MouseEvent(type, { bubbles: true, cancelable: true, ...options })
+  Object.defineProperty(event, 'pointerId', { value: options.pointerId })
+  element.dispatchEvent(event)
+}
+
+describe('WaveformChart presentation mode', () => {
+  it('keeps existing plot interaction enabled by default', async () => {
+    const wrapper = await mountSizedChart(presentationData, {
+      grid: { rowCount: 1, columnCount: 1 },
+    })
+    const overlay = wrapper.get('.waveform-chart__overlay--independent')
+    const { width, height } = setOverlayBounds(overlay)
+
+    expect(wrapper.attributes('data-presentation-mode')).toBe('false')
+    expect(overlay.classes()).toContain('is-zoomable')
+
+    overlay.element.dispatchEvent(
+      new MouseEvent('pointermove', {
+        clientX: width / 2,
+        clientY: height / 2,
+        bubbles: true,
+      }),
+    )
+    flushAnimationFrames()
+    await flushPromises()
+
+    expect(wrapper.find('.waveform-chart__tooltip').exists()).toBe(true)
+    expect(wrapper.emitted('point-hover')?.length).toBeGreaterThan(0)
+  })
+
+  it.each<WaveformDisplayMode>(['independent', 'separated'])(
+    'blocks plot mouse events in %s layout',
+    async (displayMode) => {
+      const wrapper = await mountSizedChart(presentationData, {
+        annotations: [{ id: 'note', seriesId: 'low', x: 1, y: 10, text: '只读标注' }],
+        displayMode,
+        grid: { rowCount: 1, columnCount: 1 },
+        interactionMode: 'annotation',
+        presentationMode: true,
+      })
+      const overlay = wrapper.get('.waveform-chart__overlay')
+      const { width, height } = setOverlayBounds(overlay)
+
+      expect(wrapper.attributes('data-presentation-mode')).toBe('true')
+      expect(overlay.classes()).not.toContain('is-zoomable')
+      expect(overlay.classes()).not.toContain('is-annotating')
+
+      overlay.element.dispatchEvent(
+        new MouseEvent('pointermove', {
+          clientX: width / 2,
+          clientY: height / 2,
+          bubbles: true,
+        }),
+      )
+      overlay.element.dispatchEvent(
+        new WheelEvent('wheel', {
+          deltaY: -4000,
+          clientX: width / 2,
+          clientY: height / 2,
+          bubbles: true,
+          cancelable: true,
+        }),
+      )
+      overlay.element.dispatchEvent(
+        new MouseEvent('click', {
+          clientX: width / 2,
+          clientY: height / 2,
+          bubbles: true,
+          cancelable: true,
+        }),
+      )
+      overlay.element.dispatchEvent(
+        new MouseEvent('contextmenu', {
+          clientX: width / 2,
+          clientY: height / 2,
+          bubbles: true,
+          cancelable: true,
+        }),
+      )
+      wrapper.get('.waveform-chart__svg').element.dispatchEvent(
+        new MouseEvent('dblclick', { bubbles: true, cancelable: true }),
+      )
+      await wrapper.get('[data-annotation-id="note"]').trigger('contextmenu', {
+        clientX: width / 2,
+        clientY: height / 2,
+      })
+      const annotation = wrapper.get('[data-annotation-id="note"]').element
+      dispatchPointer(annotation, 'pointerdown', {
+        button: 0,
+        clientX: width / 2,
+        clientY: height / 2,
+        pointerId: 42,
+      })
+      dispatchPointer(annotation, 'pointermove', {
+        clientX: width / 2 + 30,
+        clientY: height / 2 + 20,
+        pointerId: 42,
+      })
+      dispatchPointer(annotation, 'pointerup', {
+        clientX: width / 2 + 30,
+        clientY: height / 2 + 20,
+        pointerId: 42,
+      })
+      flushAnimationFrames()
+      await flushPromises()
+
+      expect(wrapper.find('.waveform-chart__tooltip').exists()).toBe(false)
+      expect(wrapper.find('.waveform-annotation-editor').exists()).toBe(false)
+      expect(wrapper.find('.waveform-annotation-context-menu').exists()).toBe(false)
+      expect(wrapper.emitted('point-hover')).toBeUndefined()
+      expect(wrapper.emitted('zoom-change')).toBeUndefined()
+      expect(wrapper.emitted('zoom-end')).toBeUndefined()
+      expect(wrapper.emitted('zoom-reset')).toBeUndefined()
+      expect(wrapper.emitted('update:annotations')).toBeUndefined()
+    },
+  )
+
+  it('keeps the legend and pagination interactive', async () => {
+    const wrapper = await mountSizedChart(presentationData, {
+      grid: { rowCount: 1, columnCount: 1, showPagination: true },
+      legend: { interactive: true },
+      presentationMode: true,
+    })
+
+    await wrapper.findAll('.waveform-chart__legend-item')[1]!.trigger('click')
+    await flushPromises()
+    expect(wrapper.emitted('update:hidden-series-ids')?.at(-1)).toEqual([['high']])
+
+    await wrapper.get('.ant-pagination-next button').trigger('click')
+    await flushPromises()
+    expect(wrapper.emitted('page-change')?.at(-1)).toEqual([2, 2])
+  })
+
+  it('cleans active UI state and restores interaction without resetting the viewport', async () => {
+    const wrapper = await mountSizedChart(presentationData, {
+      grid: { rowCount: 1, columnCount: 1 },
+    })
+    const overlay = wrapper.get('.waveform-chart__overlay--independent')
+    const { width, height } = setOverlayBounds(overlay)
+
+    overlay.element.dispatchEvent(
+      new WheelEvent('wheel', {
+        deltaY: -4000,
+        clientX: width / 2,
+        clientY: height / 2,
+        bubbles: true,
+        cancelable: true,
+      }),
+    )
+    flushAnimationFrames()
+    await flushPromises()
+    const zoomedEndpoint = wrapper.get('.waveform-chart__axis-endpoint--end').text()
+
+    dispatchPointer(overlay.element, 'pointerdown', {
+      button: 0,
+      clientX: width * 0.25,
+      clientY: height / 2,
+      pointerId: 41,
+    })
+    dispatchPointer(overlay.element, 'pointermove', {
+      clientX: width * 0.75,
+      clientY: height / 2,
+      pointerId: 41,
+    })
+    await flushPromises()
+    expect(wrapper.find('.waveform-chart__zoom-selection').exists()).toBe(true)
+
+    await wrapper.setProps({ presentationMode: true })
+    await flushPromises()
+
+    expect(wrapper.find('.waveform-chart__zoom-selection').exists()).toBe(false)
+    expect(wrapper.get('.waveform-chart__axis-endpoint--end').text()).toBe(zoomedEndpoint)
+
+    const zoomEventCount = wrapper.emitted('zoom-change')?.length ?? 0
+    await wrapper.setProps({ presentationMode: false })
+    await flushPromises()
+    overlay.element.dispatchEvent(
+      new WheelEvent('wheel', {
+        deltaY: -200,
+        clientX: width / 2,
+        clientY: height / 2,
+        bubbles: true,
+        cancelable: true,
+      }),
+    )
+    flushAnimationFrames()
+    await flushPromises()
+
+    expect(wrapper.emitted('zoom-change')?.length).toBeGreaterThan(zoomEventCount)
+  })
+
+  it('closes hover and annotation UI when enabled at runtime', async () => {
+    const wrapper = await mountSizedChart(presentationData, {
+      grid: { rowCount: 1, columnCount: 1 },
+      interactionMode: 'annotation',
+    })
+    const overlay = wrapper.get('.waveform-chart__overlay--independent')
+    const { width, height } = setOverlayBounds(overlay)
+
+    overlay.element.dispatchEvent(
+      new MouseEvent('pointermove', {
+        clientX: width / 2,
+        clientY: height / 2,
+        bubbles: true,
+      }),
+    )
+    flushAnimationFrames()
+    await flushPromises()
+    expect(wrapper.find('.waveform-chart__tooltip').exists()).toBe(true)
+
+    overlay.element.dispatchEvent(
+      new MouseEvent('contextmenu', {
+        clientX: width / 2,
+        clientY: height / 2,
+        bubbles: true,
+        cancelable: true,
+      }),
+    )
+    await flushPromises()
+    expect(wrapper.find('.waveform-annotation-editor').exists()).toBe(true)
+
+    await wrapper.setProps({ presentationMode: true })
+    await flushPromises()
+
+    expect(wrapper.find('.waveform-chart__tooltip').exists()).toBe(false)
+    expect(wrapper.find('.waveform-annotation-editor').exists()).toBe(false)
+    expect(wrapper.emitted('point-hover')?.at(-1)).toEqual([null])
+
+    await wrapper.setProps({ presentationMode: false })
+    overlay.element.dispatchEvent(
+      new MouseEvent('pointermove', {
+        clientX: width / 2,
+        clientY: height / 2,
+        bubbles: true,
+      }),
+    )
+    flushAnimationFrames()
+    await flushPromises()
+    expect(wrapper.find('.waveform-chart__tooltip').exists()).toBe(true)
+  })
+})

src/components/waveformChartCases/viewportBoxAndPan.test.ts

@@ -224,6 +224,56 @@ describe('WaveformChart', () => {
     window.dispatchEvent(new KeyboardEvent('keyup', { code: 'Space' }))
   })
 
+  it('keeps a fixed Y domain through panning and viewport reset', async () => {
+    const wrapper = await mountSizedChart(
+      {
+        kind: 'points',
+        points: [
+          { x: 0, y: 0 },
+          { x: 1, y: 100 },
+        ],
+      },
+      { pannable: true, yDomain: [3, 97] },
+    )
+    const overlay = wrapper.get('.waveform-chart__overlay--independent')
+    const width = Number(overlay.attributes('width'))
+    const height = Number(overlay.attributes('height'))
+    Object.defineProperty(overlay.element, 'getBoundingClientRect', {
+      value: () => ({ left: 0, top: 0, width, height }),
+    })
+    const yTickLabels = () =>
+      wrapper
+        .get('.waveform-chart__axis--y')
+        .findAll('.tick text')
+        .map((tick) => tick.text())
+    const initialLabels = yTickLabels()
+
+    await wrapper.trigger('pointerenter')
+    window.dispatchEvent(new KeyboardEvent('keydown', { code: 'Space', cancelable: true }))
+    const down = new MouseEvent('pointerdown', {
+      button: 0,
+      clientX: width / 2,
+      clientY: height / 2,
+      bubbles: true,
+    })
+    Object.defineProperty(down, 'pointerId', { value: 34 })
+    overlay.element.dispatchEvent(down)
+    const move = new MouseEvent('pointermove', {
+      clientX: width / 2 + 20,
+      clientY: height / 2 + 40,
+      bubbles: true,
+    })
+    Object.defineProperty(move, 'pointerId', { value: 34 })
+    overlay.element.dispatchEvent(move)
+    await flushPromises()
+
+    expect(yTickLabels()).toEqual(initialLabels)
+    ;(wrapper.vm as unknown as { resetViewport: () => void }).resetViewport()
+    await flushPromises()
+    expect(yTickLabels()).toEqual(initialLabels)
+    window.dispatchEvent(new KeyboardEvent('keyup', { code: 'Space' }))
+  })
+
   it('does not activate pannable on a chart that the pointer is outside', async () => {
     const data: WaveformData = {
       kind: 'points',

src/demo/DemoChartHost.vue

@@ -43,6 +43,7 @@ defineExpose({ resetViewport })
       :frame-style="model.frameStyle"
       :axes="model.axes"
       :clean-view="model.cleanView"
+      :presentation-mode="model.presentationMode"
       :show-tooltip="model.showTooltip"
       :zero-line="model.zeroLine"
       :frame-number="model.frameWatermarkVisible ? 1 : undefined"

src/demo/DemoViewControls.vue

@@ -46,6 +46,10 @@ const model = defineModel<DemoControlPanelModel>('model', { required: true })
         <span>净图</span>
         <Switch v-model:checked="model.cleanView" size="small" aria-label="净图模式" />
       </label>
+      <label class="frame-style-control frame-style-control--switch">
+        <span>展示模式</span>
+        <Switch v-model:checked="model.presentationMode" size="small" aria-label="展示模式" />
+      </label>
     </div>
   </section>
   <section class="control-section">

src/demo/types.ts

@@ -26,6 +26,7 @@ export interface DemoControlPanelModel {
   overlayMode: WaveformOverlayMode
   showTooltip: boolean
   cleanView: boolean
+  presentationMode: boolean
   selectedSeriesId: string
   selectedLineStyle: WaveformLineStyle
   lineStyleOptions: Array<SelectOption<WaveformLineStyle>>
@@ -87,6 +88,7 @@ export interface DemoChartModel {
   frameStyle: WaveformFrameStyle
   axes: WaveformAxesOptions
   cleanView: boolean
+  presentationMode: boolean
   showTooltip: boolean
   zeroLine: WaveformZeroLineOptions
   frameWatermarkVisible: boolean

src/demoRoutes.css

@@ -0,0 +1,197 @@
+.demo-shell {
+  display: grid;
+  grid-template-rows: 48px minmax(0, 1fr);
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+}
+
+.demo-shell__header {
+  z-index: 40;
+  display: flex;
+  gap: 24px;
+  align-items: center;
+  min-width: 0;
+  padding: 0 16px;
+  background: #fff;
+  border-bottom: 1px solid #e4e7ec;
+}
+
+.demo-shell__brand {
+  flex: 0 0 auto;
+  color: #101828;
+  font-size: 14px;
+  font-weight: 700;
+  text-decoration: none;
+}
+
+.demo-shell__nav {
+  display: flex;
+  align-self: stretch;
+  min-width: 0;
+}
+
+.demo-shell__nav a {
+  display: inline-flex;
+  align-items: center;
+  padding: 0 14px;
+  color: #475467;
+  font-size: 13px;
+  text-decoration: none;
+  border-bottom: 2px solid transparent;
+}
+
+.demo-shell__nav a:hover,
+.demo-shell__nav a:focus-visible,
+.demo-shell__nav a.router-link-exact-active {
+  color: #0958d9;
+}
+
+.demo-shell__nav a.router-link-exact-active {
+  background: #f0f7ff;
+  border-bottom-color: #1677ff;
+}
+
+.demo-shell__content {
+  min-width: 0;
+  min-height: 0;
+  overflow: hidden;
+}
+
+.fixed-domain-demo {
+  display: grid;
+  grid-template-rows: auto auto minmax(0, 1fr);
+  gap: 12px;
+  width: 100%;
+  height: 100%;
+  padding: 16px;
+  overflow: hidden;
+}
+
+.fixed-domain-demo__toolbar {
+  display: flex;
+  gap: 24px;
+  align-items: center;
+  justify-content: space-between;
+  min-width: 0;
+}
+
+.fixed-domain-demo__toolbar h1 {
+  margin: 0;
+  color: #101828;
+  font-size: 18px;
+  font-weight: 700;
+  letter-spacing: 0;
+}
+
+.fixed-domain-demo__toolbar p {
+  margin: 4px 0 0;
+  color: #667085;
+  font-size: 12px;
+}
+
+.fixed-domain-demo__range-controls {
+  display: flex;
+  gap: 16px;
+  align-items: center;
+  min-height: 48px;
+  padding: 8px 12px;
+  background: #fff;
+  border: 1px solid #e4e7ec;
+  border-radius: 6px;
+}
+
+.fixed-domain-demo__range-controls label {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  color: #475467;
+  font-size: 12px;
+}
+
+.fixed-domain-demo__range-controls .ant-input-number {
+  width: 112px;
+}
+
+.fixed-domain-demo__range-controls strong {
+  color: #344054;
+  font-size: 12px;
+}
+
+.fixed-domain-demo__range-controls strong:not(:first-child) {
+  padding-left: 16px;
+  border-left: 1px solid #e4e7ec;
+}
+
+.fixed-domain-demo__auto-state {
+  color: #667085;
+  font-size: 12px;
+}
+
+.fixed-domain-demo__chart {
+  min-width: 0;
+  min-height: 0;
+  overflow: hidden;
+}
+
+.fixed-domain-demo__chart > .waveform-chart {
+  min-height: 0;
+}
+
+@media (max-width: 900px) {
+  .demo-shell {
+    grid-template-rows: 44px minmax(0, 1fr);
+  }
+
+  .demo-shell__header {
+    gap: 8px;
+    padding: 0 8px;
+  }
+
+  .demo-shell__brand {
+    display: none;
+  }
+
+  .demo-shell__nav {
+    width: 100%;
+  }
+
+  .demo-shell__nav a {
+    flex: 1 1 0;
+    justify-content: center;
+    padding: 0 6px;
+  }
+
+  .fixed-domain-demo {
+    gap: 8px;
+    padding: 10px;
+  }
+
+  .fixed-domain-demo__toolbar {
+    display: grid;
+    gap: 8px;
+  }
+
+  .fixed-domain-demo__toolbar .ant-radio-group {
+    display: flex;
+    width: 100%;
+  }
+
+  .fixed-domain-demo__toolbar .ant-radio-button-wrapper {
+    flex: 1 1 0;
+    padding-inline: 6px;
+    text-align: center;
+  }
+
+  .fixed-domain-demo__range-controls {
+    flex-wrap: wrap;
+    gap: 8px 12px;
+  }
+
+  .fixed-domain-demo__range-controls strong:not(:first-child) {
+    width: 100%;
+    padding: 8px 0 0;
+    border-top: 1px solid #e4e7ec;
+    border-left: 0;
+  }
+}

src/main.ts

@@ -1,7 +1,9 @@
 import { createApp } from 'vue'
 import 'ant-design-vue/dist/antd.css'
 
-import App from './App.vue'
+import DemoRouterApp from './DemoRouterApp.vue'
+import { router } from './router'
+import './demoRoutes.css'
 import './styles.css'
 
-createApp(App).mount('#app')
+createApp(DemoRouterApp).use(router).mount('#app')

src/router.ts

@@ -0,0 +1,21 @@
+import { createRouter, createWebHashHistory, type RouteRecordRaw } from 'vue-router'
+
+import App from './App.vue'
+
+export const routes: RouteRecordRaw[] = [
+  {
+    path: '/',
+    name: 'workspace',
+    component: App,
+  },
+  {
+    path: '/fixed-y-domain',
+    name: 'fixed-y-domain',
+    component: () => import('./views/FixedYDomainDemo.vue'),
+  },
+]
+
+export const router = createRouter({
+  history: createWebHashHistory(),
+  routes,
+})

src/styles.css

@@ -35,8 +35,7 @@ body {
   grid-template-columns: 280px minmax(0, 1fr);
   gap: 12px;
   width: 100%;
-  height: 100vh;
+  height: 100%;
-  height: 100dvh;
   padding: 12px;
   overflow: hidden;
 }

src/views/FixedYDomainDemo.test.ts

@@ -0,0 +1,44 @@
+import { flushPromises, mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+
+import { WaveformChart } from '../components'
+import { routes } from '../router'
+import FixedYDomainDemo from './FixedYDomainDemo.vue'
+
+describe('fixed Y-domain demo route', () => {
+  it('registers the example route', () => {
+    expect(routes).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({
+          path: '/fixed-y-domain',
+          name: 'fixed-y-domain',
+        }),
+      ]),
+    )
+  })
+
+  it('switches between global, automatic, and per-channel ranges', async () => {
+    const wrapper = mount(FixedYDomainDemo)
+    await flushPromises()
+    const chart = () => wrapper.getComponent(WaveformChart)
+    const modeInputs = wrapper.get('[aria-label="Y 轴范围模式"]').findAll('input[type="radio"]')
+
+    expect(chart().props('yDomain')).toEqual([-80, 80])
+    expect(chart().props('yDomains')).toBeUndefined()
+
+    await modeInputs[0]?.setValue(true)
+    await flushPromises()
+    expect(chart().props('yDomain')).toBeUndefined()
+    expect(chart().props('yDomains')).toBeUndefined()
+
+    await modeInputs[2]?.setValue(true)
+    await flushPromises()
+    expect(chart().props('yDomain')).toBeUndefined()
+    expect(chart().props('yDomains')).toEqual({
+      voltage: [-65, 65],
+      current: [-260, 260],
+    })
+
+    wrapper.unmount()
+  })
+})

src/views/FixedYDomainDemo.vue

@@ -0,0 +1,149 @@
+<script setup lang="ts">
+import { computed, ref } from 'vue'
+import { InputNumber, RadioButton, RadioGroup } from 'ant-design-vue'
+
+import { WaveformChart, type WaveformData } from '../components'
+
+type RangeMode = 'auto' | 'global' | 'channel'
+
+const rangeMode = ref<RangeMode>('global')
+const globalMinimum = ref(-80)
+const globalMaximum = ref(80)
+const voltageMinimum = ref(-65)
+const voltageMaximum = ref(65)
+const currentMinimum = ref(-260)
+const currentMaximum = ref(260)
+
+const chartData: WaveformData = {
+  kind: 'series',
+  series: [
+    {
+      id: 'voltage',
+      name: '电压',
+      unit: 'V',
+      color: '#1677ff',
+      data: {
+        kind: 'points',
+        points: Array.from({ length: 800 }, (_, index) => {
+          const x = index / 80
+          const pulse = index % 240 >= 112 && index % 240 <= 122 ? 58 : 0
+          return { x, y: 48 * Math.sin(x * Math.PI * 1.5) + pulse }
+        }),
+      },
+    },
+    {
+      id: 'current',
+      name: '电流',
+      unit: 'mA',
+      color: '#d4380d',
+      data: {
+        kind: 'points',
+        points: Array.from({ length: 800 }, (_, index) => {
+          const x = index / 80
+          const pulse = index % 300 >= 184 && index % 300 <= 192 ? -210 : 0
+          return { x, y: 185 * Math.cos(x * Math.PI) + pulse }
+        }),
+      },
+    },
+  ],
+}
+
+function orderedDomain(minimum: number, maximum: number): [number, number] | undefined {
+  if (!Number.isFinite(minimum) || !Number.isFinite(maximum) || minimum === maximum) {
+    return undefined
+  }
+  return minimum < maximum ? [minimum, maximum] : [maximum, minimum]
+}
+
+const yDomain = computed<[number, number] | undefined>(() =>
+  rangeMode.value === 'global'
+    ? orderedDomain(globalMinimum.value, globalMaximum.value)
+    : undefined,
+)
+const yDomains = computed<Record<string, [number, number]> | undefined>(() => {
+  if (rangeMode.value !== 'channel') return undefined
+  const voltage = orderedDomain(voltageMinimum.value, voltageMaximum.value)
+  const current = orderedDomain(currentMinimum.value, currentMaximum.value)
+  return {
+    ...(voltage ? { voltage } : {}),
+    ...(current ? { current } : {}),
+  }
+})
+const rangeSummary = computed(() => {
+  if (rangeMode.value === 'auto') return '自动计算'
+  if (rangeMode.value === 'global') {
+    return yDomain.value ? `${yDomain.value[0]} ～ ${yDomain.value[1]}` : '自动计算'
+  }
+  const voltage = yDomains.value?.voltage
+  const current = yDomains.value?.current
+  return `电压 ${voltage?.[0] ?? '-'} ～ ${voltage?.[1] ?? '-'} V · 电流 ${
+    current?.[0] ?? '-'
+  } ～ ${current?.[1] ?? '-'} mA`
+})
+</script>
+
+<template>
+  <main class="fixed-domain-demo">
+    <header class="fixed-domain-demo__toolbar">
+      <div>
+        <h1>固定振幅范围</h1>
+        <p>当前范围：{{ rangeSummary }}</p>
+      </div>
+      <RadioGroup v-model:value="rangeMode" button-style="solid" aria-label="Y 轴范围模式">
+        <RadioButton value="auto">自动</RadioButton>
+        <RadioButton value="global">全局固定</RadioButton>
+        <RadioButton value="channel">按通道固定</RadioButton>
+      </RadioGroup>
+    </header>
+
+    <section class="fixed-domain-demo__range-controls">
+      <template v-if="rangeMode === 'global'">
+        <label>
+          <span>下限</span>
+          <InputNumber v-model:value="globalMinimum" aria-label="全局振幅下限" />
+        </label>
+        <label>
+          <span>上限</span>
+          <InputNumber v-model:value="globalMaximum" aria-label="全局振幅上限" />
+        </label>
+      </template>
+      <template v-else-if="rangeMode === 'channel'">
+        <strong>电压</strong>
+        <label>
+          <span>下限</span>
+          <InputNumber v-model:value="voltageMinimum" aria-label="电压振幅下限" />
+        </label>
+        <label>
+          <span>上限</span>
+          <InputNumber v-model:value="voltageMaximum" aria-label="电压振幅上限" />
+        </label>
+        <strong>电流</strong>
+        <label>
+          <span>下限</span>
+          <InputNumber v-model:value="currentMinimum" aria-label="电流振幅下限" />
+        </label>
+        <label>
+          <span>上限</span>
+          <InputNumber v-model:value="currentMaximum" aria-label="电流振幅上限" />
+        </label>
+      </template>
+      <span v-else class="fixed-domain-demo__auto-state">根据可见数据自动计算</span>
+    </section>
+
+    <section class="fixed-domain-demo__chart">
+      <WaveformChart
+        :data="chartData"
+        :y-domain="yDomain"
+        :y-domains="yDomains"
+        display-mode="independent"
+        :grid="{ rowCount: 2, columnCount: 1, showPagination: false }"
+        :title="{ visible: true, text: '振幅上下限示例', align: 'left' }"
+        :zero-line="{ visible: true, color: '#98a2b3', width: 1, dash: '5 4' }"
+        :legend="{ position: 'top-right', backgroundColor: 'rgba(255,255,255,0.8)' }"
+        x-label="时间（s）"
+        time-unit="s"
+        :show-tooltip="true"
+      />
+    </section>
+  </main>
+</template>