当 ClipToBounds=NO 时不绘制外部边界
我正在地图上绘制线条，我注意到我的注释视图没有覆盖线条的整个区域（这很好，只要我可以在视图边界之外绘制）。
这是我正在经历的事情的图片。对于注释视图，clipToBounds 属性设置为 NO，并且我在背景中添加了半透明颜色，以便您可以看到视图的位置。 蓝线未绘制在边界之外 http://img.skitch.com/20100512-qdm18j7x42wptw3cumnr6h271q.jpg< /a>
图钉代表地图上的各个航路点。
我是否需要做一些特殊的事情才能让线条继续在视图边界之外绘制？
I am drawing lines on a map, and I notice that my annotation view isn't covering the entire area of the lines (which is fine, as long as I can draw outside the bounds of the view).
Here is a picture of what I'm experiencing. The clipToBounds property is set to NO for the annotation view, and I've added a semi-transparent color to the background so you can see the position of the view.
blue line not drawn outside bounds http://img.skitch.com/20100512-qdm18j7x42wptw3cumnr6h271q.jpg
The pins represent the various waypoints on the map.
Do I have to do something special to get the lines to keep drawing outside the bounds of the view?
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你指的是哪几行？
不管怎样，我认为答案应该是“不”，除非你正在做自定义绘图。
在这种情况下，您需要确保每当需要绘制线条时都调用
[view setNeedsDisplay]。What lines are you referring to?
Anyway, I think the answer should be "no", unless you are doing custom drawing.
In that case, you need to make sure
[view setNeedsDisplay]is being called whenever the lines need to be drawn.