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waveform-analysis/src/components/core/constants.ts
李启源 5b0ba7413e
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feat: 优化波形渲染性能与交互
2026-07-22 16:36:48 +08:00

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/**
* 波形图表核心常量配置
*/
// ==================== 布局常量 ====================
/** 图表边距 */
export const margin = { top: 18, right: 24, bottom: 52, left: 64 }
/**
* 图表最小高度(像素)
*/
export const minimumHeight = 180
/**
* 网格间距配置
*/
export const gridGap = {
independent: 30,
separated: 20,
compact: 20,
}
// ==================== Y轴常量 ====================
/**
* Y轴字符宽度像素
*/
export const Y_AXIS_CHARACTER_WIDTH = 7
/**
* Y轴刻度内边距像素
*/
export const Y_AXIS_TICK_PADDING = 7
/**
* Y轴外边距像素
*/
export const Y_AXIS_OUTER_PADDING = 4
/**
* Y轴标签间距像素
*/
export const Y_AXIS_LABEL_GAP = 6
/**
* Y轴标签带宽度像素
*/
export const Y_AXIS_LABEL_BAND_WIDTH = 24
/**
* Y轴指数标签间距像素
*/
export const Y_AXIS_EXPONENT_GAP = 8
/**
* 最小绘图宽度(像素)
*/
export const MINIMUM_PLOT_WIDTH = 120
// ==================== 交互常量 ====================
/**
* 滚轮缩放防抖时间(毫秒)
*/
export const WHEEL_ZOOM_DEBOUNCE_MS = 200
/**
* 最小选择框尺寸(像素)
*/
export const MINIMUM_SELECTION_SIZE = 6
/**
* 缩放限制常量
*/
export const ZOOM_CONSTRAINTS = {
/** 默认最大缩放倍数 */
DEFAULT_MAX_SCALE: 40,
/** 最小缩放倍数 */
MIN_SCALE: 1,
}
/**
* 悬停检测阈值(像素)
* 当指针移动距离小于此值时,使用缓存的悬停结果
*/
// ==================== 注释常量 ====================
/**
* 注释命中半径(像素)
*/
export const ANNOTATION_HIT_RADIUS = 8
/**
* 注释歧义距离(像素)
* 当多个候选注释点距离差小于此值时,视为歧义
*/
export const ANNOTATION_AMBIGUITY_DISTANCE = 3
// ==================== 标题常量 ====================
/**
* 标题区域水平内边距(像素)
*/
export const TITLE_AREA_HORIZONTAL_PADDING = 24
/**
* 标题默认字体大小(像素)
*/
export const TITLE_DEFAULT_FONT_SIZE = 14
/**
* 标题默认字符宽度系数
*/
export const TITLE_CHAR_WIDTH_RATIO = 0.62
/**
* 标题行高
*/
export const TITLE_LINE_HEIGHT = 1.2
// ==================== 样式常量 ====================
/**
* 通道默认颜色列表
*/
export const channelColors = [
'#0960bd',
'#ff7f0e',
'#389e0d',
'#cf1322',
'#531dab',
'#08979c',
'#c41d7f',
'#434343',
'#7cb305',
'#1d39c4',
]
/**
* 错误条默认配置
*/
export const ERROR_BAR_DEFAULTS = {
/** 线宽(像素) */
WIDTH: 1.5,
/** 端帽宽度(像素) */
CAP_WIDTH: 8,
}
/**
* 零线默认配置
*/
export const ZERO_LINE_DEFAULTS = {
/** 颜色 */
COLOR: '#98a2b3',
/** 线宽(像素) */
WIDTH: 1,
/** 虚线样式 */
DASH: '6 4',
}
/**
* 图例默认配置
*/
export const LEGEND_DEFAULTS = {
/** 背景色 */
BACKGROUND_COLOR: 'rgba(255, 255, 255, 0.7)',
/** 位置 */
POSITION: 'top-right' as const,
/** 方向 */
ORIENTATION: 'auto' as const,
}
// ==================== 渲染常量 ====================
/**
* 最大多轴数量
*/
export const MAX_MULTI_Y_AXIS_COUNT = 4
/**
* 缓存限制
*/
export const CACHE_LIMITS = {
/** Y轴组缓存最大条目数 */
Y_AXIS_GROUPS: 100,
/** 轨道距离缓存刷新阈值(像素) */
TRACK_DISTANCE_REFRESH_THRESHOLD: 5,
}
// 向后兼容性导出
export { channelColors as default }