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发布于 2024-08-27 21:02:13 字数 108 浏览 5 评论 0原文

我可以使用哪些 GDI 方法来绘制下图中所示的蓝色形状？中心必须是透明的。

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￠蛋碎的人ぎ生 2024-09-03 21:02:13

有多种方法，但您可能需要使用以下方法：

FillRectangle
FillPolygon
DrawLine

因为看起来您的形状可以简化为一个矩形和两个多边形，然后用几条线勾勒出轮廓。

这是我的想法的一个非常简单且硬编码的示例：

Private Sub Control_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) _
Handles MyBase.Paint
    Dim g As Graphics = e.Graphics

    g.FillRectangle(Brushes.Aqua, New Rectangle(10, 10, 10, 90))
    g.FillPolygon(Brushes.Aqua, New Point() { _
        New Point(10, 10), _
        New Point(20, 10), _
        New Point(40, 50), _
        New Point(30, 50)})
    g.FillPolygon(Brushes.Aqua, New Point() { _
        New Point(10, 100), _
        New Point(20, 100), _
        New Point(40, 50), _
        New Point(30, 50)})
    g.DrawLine(Pens.Black, New Point(10, 10), New Point(10, 100))
    g.DrawLine(Pens.Black, New Point(10, 100), New Point(20, 100))
    g.DrawLine(Pens.Black, New Point(20, 100), New Point(40, 50))
    g.DrawLine(Pens.Black, New Point(40, 50), New Point(20, 10))
    g.DrawLine(Pens.Black, New Point(20, 10), New Point(10, 10))

...

There are a number of ways but you'll probably want to use the following:

FillRectangle
FillPolygon
DrawLine

since it looks like your shape can be reduced to a rectangle and two polygons and then outlined by a few lines.

Here is a really simple and hard-coded example of what i was thinking:

Private Sub Control_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) _
Handles MyBase.Paint
    Dim g As Graphics = e.Graphics

    g.FillRectangle(Brushes.Aqua, New Rectangle(10, 10, 10, 90))
    g.FillPolygon(Brushes.Aqua, New Point() { _
        New Point(10, 10), _
        New Point(20, 10), _
        New Point(40, 50), _
        New Point(30, 50)})
    g.FillPolygon(Brushes.Aqua, New Point() { _
        New Point(10, 100), _
        New Point(20, 100), _
        New Point(40, 50), _
        New Point(30, 50)})
    g.DrawLine(Pens.Black, New Point(10, 10), New Point(10, 100))
    g.DrawLine(Pens.Black, New Point(10, 100), New Point(20, 100))
    g.DrawLine(Pens.Black, New Point(20, 100), New Point(40, 50))
    g.DrawLine(Pens.Black, New Point(40, 50), New Point(20, 10))
    g.DrawLine(Pens.Black, New Point(20, 10), New Point(10, 10))

...

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