private void DrawAPoint(object sender, MouseButtonEventArgs e)
{
var point = e.GetPosition(Canvas);
if (_drawingPolygonS)
{
if (_polygonSVertexNum == 0)
{
_polyS.PointList.Add(new Vertex(point.X, point.Y)
{
Name = "S" + (_polygonSVertexNum + 1)
});
}
_polyS.PointList.Add(new Vertex(point.X, point.Y)
{
Name = "S" + (_polygonSVertexNum + 1)
});
_polyS.Render(Canvas);
}
if (_drawingPolygonC)
{
if (_polygonCVertexNum == 0)
{
_polyC.PointList.Add(new Vertex(point.X, point.Y)
{
Name = "C" + (_polygonCVertexNum + 1)
});
}
_polyC.PointList.Add(new Vertex(point.X, point.Y)
{
Name = "C" + (_polygonCVertexNum + 1)
});
_polyC.Render(Canvas);
}
}
private void Cut(object sender, RoutedEventArgs e)
{
Status.Text = "裁剪结果";
ResetButton();
ButtonCut.Background = new SolidColorBrush(Colors.DodgerBlue);
var polylineLst = ArbitraryPolygonCut.Cut(_polyS.PointList, _polyC.PointList);
if (polylineLst.Count == 0)
{
MessageBox.Show("没有交点");
return;
}
foreach (var pointLst in polylineLst)
{
var polyResult = new MyPolygon(RenderType.Polygon)
{
StrokeColor = Colors.Transparent,
StrokeThickess = 0,
FillColor = Color.FromArgb(80, 30, 144, 255),
Filled = true
};
polyResult.PointList.AddRange(pointLst);
polyResult.Render(Canvas);
}
}
private void Cut(object sender, RoutedEventArgs e)
{
Status.Text = "裁剪结果";
ResetButton();
ButtonCut.Background = new SolidColorBrush(Colors.DodgerBlue);
var polylineLst = ArbitraryPolygonCut.Cut(_polyS.PointList, _polyC.PointList);
if (polylineLst.Count == 0)
{
MessageBox.Show("没有交点");
return;
}
foreach (var pointLst in polylineLst)
{
var polyResult = new MyPolygon(RenderType.Polygon)
{
StrokeColor = Colors.Transparent,
StrokeThickess = 0,
FillColor = Color.FromArgb(80, 30, 144, 255),
Filled = true
};
polyResult.PointList.AddRange(pointLst);
polyResult.Render(Canvas);
}
}
