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Fix path coordinate conversion when coordinate points are behind the camera #2637

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Merged
fuzhenn merged 7 commits into from
Sep 18, 2025
Merged

Fix path coordinate conversion when coordinate points are behind the camera #2637

fuzhenn merged 7 commits into from
Sep 18, 2025

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@deyihu deyihu commented Sep 17, 2025 •
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fix #1439

问题：当坐标点（gl）在相机背后时，转换出来像素坐标不对

  • 点数据是没有问题，因为这时点不在视野内，即使不对也看不出来
  • 但是path就不行了，当一个点在视野内，另一点在相机背后时就会出现问题（红色的是gllayer,黑色的是canvaslayer）
B74_6PVUGHSF(D~KGGRKKI3

解决方法:凡是在相机背后的点，一律利用相机近距离的线给裁掉，使点不会在相机背后很远的地方

2GW(KQ7D54{6DLGLA$6EH8L

这个功能默认关闭：需要是可以 开启strictClip

    const line = new maptalks.LineString(coordinates, {
                enableClip: false,
                strictClip: true,
                symbol: symbol
            }).addTo(layer);

@deyihu deyihu requested a review from fuzhenn September 17, 2025 02:27
@deyihu deyihu closed this Sep 17, 2025
@deyihu deyihu reopened this Sep 17, 2025
@fuzhenn fuzhenn merged commit a7e7247 into maptalks:master Sep 18, 2025
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@deyihu deyihu deleted the path-clip branch September 18, 2025 11:24
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扩大剪裁范围后，图形绘制不正确了

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@deyihu @fuzhenn