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@lijuhong1981/jswindfield

v1.2.15

Published

Wind field particle animation visualization.

Readme

@lijuhong1981/jswindfield

风场粒子动画可视化,基于 Canvas 2D 渲染风场矢量场(GRIB 数据),支持经纬度/像素两种坐标单位与双线性插值。

安装

npm install @lijuhong1981/jswindfield

导出

  • WindField(默认导出,同时命名导出)— 风场渲染器
    • 静态属性:WindField.Vector、WindField.Field、WindField.defaultOptions
    • 方法:setOptions、setData、startRender、stopRender、destroy
  • Field — 矢量场(含网格构建、双线性插值、经纬度/像素坐标换算)
  • Vector — 二维向量
  • defaultOptions — 默认渲染选项

默认渲染选项

| 项 | 默认 | 说明 | | --- | --- | --- | | globalAlpha | 0.9 | Canvas 全局透明度 | | lineWidth | 1 | 线宽 | | colors | 15 色渐变数组 | 粒子颜色 | | velocityScale | 1.0 | 速度缩放倍率 | | maxAge | 90 | 粒子最大存活帧数 | | particlesCount | 2000 | 粒子数量 | | frameDeltaTime | 1000 / 30 | 动画帧渲染间隔(毫秒) | | useAnimationFrame | true | 是否使用动画帧 | | unit | 'degrees' | 粒子位置单位 | | enableLog | false | 是否启用日志 |

依赖:@lijuhong1981/jscheck、@lijuhong1981/jsdestroy、@lijuhong1981/jslib、@lijuhong1981/jsmath、@lijuhong1981/jstime