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Comments (7)

1993hzw avatar 1993hzw commented on August 20, 2024

两个点确定一条直线。你要保存直线上的所有点？还是确定直线的这两个点？

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Chenshuai770 avatar Chenshuai770 commented on August 20, 2024

直线上所有的点的集合,不用保存直线上的点

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Chenshuai770 avatar Chenshuai770 commented on August 20, 2024

我看了源码,好像是在 mCurrPath.quadTo(
toX(mLastTouchX),
toY(mLastTouchY),
toX((mTouchX + mLastTouchX) / 2),
toY((mTouchY + mLastTouchY) / 2));这里有所有的点得集合,但这里有两个地方调用了,一个是Move得时候,另外一个是Cancel上也有,这里不是很清楚要怎么去保存

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Chenshuai770 avatar Chenshuai770 commented on August 20, 2024

我想知道怎么保存涂鸦上的点的坐标,相对于图片而言,而不是手机屏幕

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1993hzw avatar 1993hzw commented on August 20, 2024

toX() toY()就是把屏幕坐标转换成图片坐标。或者你可以在mPathStack这个集合里找到所有涂鸦的坐标信息。

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Chenshuai770 avatar Chenshuai770 commented on August 20, 2024

楼主,你好.mPathStack的集合好像只记载了按下和抬起这两个点得集合,那么在move中怎么把一条线上的点给记录下来

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1993hzw avatar 1993hzw commented on August 20, 2024

move记录在了GraffitPath里面的Path变量。

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