Drawing lines at angle vb.net [closed]

问题

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Closed 6 years ago.

I can find plenty of examples of how to draw a line in vb.net online.

I however I cannot find any examples of how to draw lines at a specific angle.

Could someone tell me how to do this?

回答1:

You'll need to do a bit of math using sin/cos.

x1, y1 = starting position of line
angleInRadians = angle on the line converted to Radians

x2 = lineLength * Math.Cos(angleInRadians) + x1
y2 = lineLength * Math.Sin(angleInRadians) + y1

Then you can draw a line from (x1, y1) to (x2, y2).

来源：https://stackoverflow.com/questions/16215247/drawing-lines-at-angle-vb-net