Question

C# 坐标系箭头

GDI+ 中p.EndCap = LineCap.ArrowAnchor;//定义线尾的样式为箭头
箭头画笔宽度够大才能看得清,怎么样才能画出的线细而且箭头足够大?可不可以定义箭头大小?

Answer 1

System.Drawing.Drawing2D.AdjustableArrowCap lineCap =
new System.Drawing.Drawing2D.AdjustableArrowCap(6, 6, true);
Pen redArrowPen = new Pen(Color.Red, 4);
redArrowPen.CustomEndCap = lineCap;

e.Graphics.DrawLine(redArrowPen,
25, 5,
25, 100);
你试试看，是不是要这样的

Answer 2

请使用如下代码：
System.Drawing.Drawing2D.AdjustableArrowCap lineCap =
new System.Drawing.Drawing2D.AdjustableArrowCap(6, 6, true);
Pen redArrowPen = new Pen(Color.Red, 4);
redArrowPen.CustomEndCap = lineCap;

e.Graphics.DrawLine(redArrowPen,
25, 5,
25, 100);