WPF入门(三)->两个几何图形合并(CombinedGeometry)

原文: WPF入门(三)->两个几何图形合并(CombinedGeometry)

在WPF中,提供了一个CombinedGeometry对象可以使两个几何图形合并产生效果

CombinedGeometry类:表示由两个 Geometry 对象组合定义的二维几何形状。

先来看一段代码:

< Window  x:Class ="WPF.SimpleGraph.Combine"
        xmlns
="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x
="http://schemas.microsoft.com/winfx/2006/xaml"
        Title
="Combine"  Height ="300"  Width ="300" >
    
< Canvas >
        
< Path  Stroke ="Red"  StrokeThickness ="2"  Fill ="Yellow" >
            
< Path.Data >
                
< CombinedGeometry  GeometryCombineMode ="Exclude" >
                    
< CombinedGeometry.Geometry1 >
                        
< EllipseGeometry  RadiusX ="50"  RadiusY ="50"  Center ="75,75"   />
                    
</ CombinedGeometry.Geometry1 >
                    
< CombinedGeometry.Geometry2 >
                        
< EllipseGeometry  RadiusX ="50"  RadiusY ="50"  Center ="125,75"   />
                    
</ CombinedGeometry.Geometry2 >
                
</ CombinedGeometry >
            
</ Path.Data >
        
</ Path >
    
</ Canvas >
</ Window >

执行结果:

其中Path元素的Fill属性表示使用yellow颜色来填充该图形

     CombinedGeometry表示一个合并的图形,它有两个属性Geometry1和Geometry2,它们表示该图形由哪两个图形来合并,该例子中,我们使用两个圆形EllipseGeometry来合并

< CombinedGeometry  GeometryCombineMode ="Exclude" >

这句话中有一个GeometryCombineMode的属性,它表示合并的方式

下面我将不同的合并方式获得的效果给大家罗列一下:

< CombinedGeometry  GeometryCombineMode ="Exclude" >

 

< CombinedGeometry  GeometryCombineMode ="Intersect" >

 

< CombinedGeometry  GeometryCombineMode ="Union" >

< CombinedGeometry  GeometryCombineMode ="Xor" >

 

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转载自www.cnblogs.com/lonelyxmas/p/10254856.html