C# FillContains方法的奇怪行为
我试图使用Geometry类中的fillContains方法来检测geometry1是否在geometry2内部,但当geometry1放置在第一个几何体的右边缘或下边缘时,我遇到了一个问题。这是一个非常奇怪的结果:C# FillContains方法的奇怪行为,c#,.net,wpf,geometry,C#,.net,Wpf,Geometry,我试图使用Geometry类中的fillContains方法来检测geometry1是否在geometry2内部,但当geometry1放置在第一个几何体的右边缘或下边缘时,我遇到了一个问题。这是一个非常奇怪的结果: var rect = new Rect(new Point(0, 0), new Point(100, 100)); RectangleGeometry geometry1 = new RectangleGeometry(rect); var rect2 = new Rect(n
var rect = new Rect(new Point(0, 0), new Point(100, 100));
RectangleGeometry geometry1 = new RectangleGeometry(rect);
var rect2 = new Rect(new Point(0, 0), new Size(10, 10));
RectangleGeometry geometry2 = new RectangleGeometry(rect2);
var rect3 = new Rect(new Point(90, 90), new Size(10, 10));
RectangleGeometry geometry3 = new RectangleGeometry(rect3);
var rect4 = new Rect(new Point(90, 80), new Size(10, 10));
RectangleGeometry geometry4 = new RectangleGeometry(rect4);
Assert.True(geometry1.FillContains(geometry2));
Assert.True(geometry1.FillContains(geometry3));
Assert.True(geometry1.FillContains(geometry4)); // Assertion failed
你能帮我怎么做才对吗 这可能与公差有关……或者与几何体相交算法内部有关……可能它们以某种方式缩放值……这取决于您使用的值,这些值可能导致相交检查产生意外结果(例如,当点为90、80时) 我对您的代码进行了一些扩展,以显示关于这两个几何体如何相交的更多细节,并希望能够使用一些东西来确定原因
var rect = new Rect(new Point(0, 0), new Point(100, 100));
RectangleGeometry geometry1 = new RectangleGeometry(rect);
var rect2 = new Rect(new Point(0, 0), new Size(10, 10));
RectangleGeometry geometry2 = new RectangleGeometry(rect2);
var rect3 = new Rect(new Point(90, 90), new Size(10, 10));
RectangleGeometry geometry3 = new RectangleGeometry(rect3);
var rect4 = new Rect(new Point(90, 80), new Size(10, 10));
RectangleGeometry geometry4 = new RectangleGeometry(rect4);
var rect4fits = new Rect(new Point(90, 80), new Size(9, 10));
RectangleGeometry geometry4fits = new RectangleGeometry(rect4fits);
double tolerance = 0.25; // same as standard flattening tolerance
ToleranceType tolerancetype = ToleranceType.Relative;
var bcontains2 = geometry1.FillContains(geometry2);
var bcontainsdetail2 = geometry1.FillContains(geometry2, tolerance, tolerancetype);
var detail2 = geometry1.FillContainsWithDetail(geometry2);
var detailtolerance2 = geometry1.FillContainsWithDetail(geometry2, tolerance, tolerancetype);
var bcontains3 = geometry1.FillContains(geometry3);
var bcontainsdetail3 = geometry1.FillContains(geometry3, tolerance, tolerancetype);
var detail3 = geometry1.FillContainsWithDetail(geometry3);
var detailtolerance3 = geometry1.FillContainsWithDetail(geometry3, tolerance, tolerancetype);
var bcontains4 = geometry1.FillContains(geometry4);
var bcontainsdetail4 = geometry1.FillContains(geometry4, tolerance, tolerancetype);
var detail4 = geometry1.FillContainsWithDetail(geometry4);
var detailtolerance4 = geometry1.FillContainsWithDetail(geometry4, tolerance, tolerancetype);
var bcontains4fits = geometry1.FillContains(geometry4fits);
var bcontainsdetail4fits = geometry1.FillContains(geometry4fits, tolerance, tolerancetype);
var detail4fits = geometry1.FillContainsWithDetail(geometry4fits);
var detailtolerance4fits = geometry1.FillContainsWithDetail(geometry4fits, tolerance, tolerancetype);
这可能与公差有关……或者与几何体相交算法内部有关……可能它们以某种方式缩放值……这取决于您使用的值,这些值可能导致相交检查产生意外结果(例如,当点为90、80时) 我对您的代码进行了一些扩展,以显示关于这两个几何体如何相交的更多细节,并希望能够使用一些东西来确定原因
var rect = new Rect(new Point(0, 0), new Point(100, 100));
RectangleGeometry geometry1 = new RectangleGeometry(rect);
var rect2 = new Rect(new Point(0, 0), new Size(10, 10));
RectangleGeometry geometry2 = new RectangleGeometry(rect2);
var rect3 = new Rect(new Point(90, 90), new Size(10, 10));
RectangleGeometry geometry3 = new RectangleGeometry(rect3);
var rect4 = new Rect(new Point(90, 80), new Size(10, 10));
RectangleGeometry geometry4 = new RectangleGeometry(rect4);
var rect4fits = new Rect(new Point(90, 80), new Size(9, 10));
RectangleGeometry geometry4fits = new RectangleGeometry(rect4fits);
double tolerance = 0.25; // same as standard flattening tolerance
ToleranceType tolerancetype = ToleranceType.Relative;
var bcontains2 = geometry1.FillContains(geometry2);
var bcontainsdetail2 = geometry1.FillContains(geometry2, tolerance, tolerancetype);
var detail2 = geometry1.FillContainsWithDetail(geometry2);
var detailtolerance2 = geometry1.FillContainsWithDetail(geometry2, tolerance, tolerancetype);
var bcontains3 = geometry1.FillContains(geometry3);
var bcontainsdetail3 = geometry1.FillContains(geometry3, tolerance, tolerancetype);
var detail3 = geometry1.FillContainsWithDetail(geometry3);
var detailtolerance3 = geometry1.FillContainsWithDetail(geometry3, tolerance, tolerancetype);
var bcontains4 = geometry1.FillContains(geometry4);
var bcontainsdetail4 = geometry1.FillContains(geometry4, tolerance, tolerancetype);
var detail4 = geometry1.FillContainsWithDetail(geometry4);
var detailtolerance4 = geometry1.FillContainsWithDetail(geometry4, tolerance, tolerancetype);
var bcontains4fits = geometry1.FillContains(geometry4fits);
var bcontainsdetail4fits = geometry1.FillContains(geometry4fits, tolerance, tolerancetype);
var detail4fits = geometry1.FillContainsWithDetail(geometry4fits);
var detailtolerance4fits = geometry1.FillContainsWithDetail(geometry4fits, tolerance, tolerancetype);