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calPosition 和 geoPosition2World 逻辑重复以及 worldPostion2Screen 运算坐标公式的疑惑 #18

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shownoso opened this issue Jun 21, 2020 · 0 comments

shownoso commented Jun 21, 2020

这是一个疑惑。

calPosition 和 geoPosition2World 逻辑重复了
worldPostion2Screen 空间坐标转为屏幕坐标是不是可以理解为一种 scale 的关系？

var result = {
    x: Math.round((vector.x + 1) * window.innerWidth / 2 - window.innerWidth / 2),
    y: Math.round(window.innerHeight / 2 - (-vector.y + 1) * window.innerHeight / 2),
    z: 0
  };
// 代码中计算公式有点奇怪，简化后如下...
var result = {
    x: Math.round(vector.x * window.innerWidth / 2),
    y: Math.round(vector.y  * window.innerHeight / 2),
    z: 0
  };

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