private void AddGeometry(DrawingGroup group, Geometry g)
{
if (group.ClipGeometry != null && !group.ClipGeometry.FillContains(g))
{
var cg = new CombinedGeometry();
cg.Geometry1 = group.ClipGeometry;
cg.Geometry2 = g;
cg.GeometryCombineMode = GeometryCombineMode.Intersect;
g = cg.GetOutlinedPathGeometry(Flatness, ToleranceType.Relative);
}
var intersections = Geometries.Where(gg => gg.FillContainsWithDetail(g) != IntersectionDetail.Empty);
foreach (var ig in intersections)
{
Geometries.Remove(ig);
var cg = new CombinedGeometry();
cg.Geometry1 = g;
cg.Geometry2 = ig;
cg.GeometryCombineMode = GeometryCombineMode.Union;
g = cg.GetOutlinedPathGeometry(Flatness, ToleranceType.Relative);
}
ApplyTransform(group.Transform, g);
//ApplyTransform(Transform, g);
Geometries.Add(g);
}
public void BuildGrid(object sender, RoutedEventArgs e)
{
Canvas canvas = gridCanvas as Canvas;
if (canvas == null)
{
return;
}
canvas.Children.Clear();
GeometryGroup row = new GeometryGroup();
GeometryGroup column = new GeometryGroup();
// Row
for (int i = 0; i < canvas.ActualHeight; i += gridSize * 2)
{
var start = i + gridSize; // 幅を2倍でとっているのでその中心に来るようにする
row.Children.Add(new RectangleGeometry(new Rect(0, start, canvas.ActualWidth, gridSize)));
}
// Column
for (int i = 0; i < canvas.ActualWidth; i += gridSize * 2)
{
var start = i + gridSize; // 幅を2倍でとっているのでその中心に来るようにする
var end = start + gridSize;
column.Children.Add(new RectangleGeometry(new Rect(start, 0, gridSize, canvas.ActualHeight)));
}
CombinedGeometry combind = new CombinedGeometry(GeometryCombineMode.Xor, row, column);
Path path = new Path()
{
Stroke = Brushes.Transparent,
StrokeThickness = 0,
Fill = this.FindResource("gridFrontBrushKey") as Brush
};
path.Data = combind.GetOutlinedPathGeometry();
canvas.Background = this.FindResource("gridBackBrushKey") as Brush;
canvas.Children.Add(path);
//for (int ix = 0; ix < canvas.ActualWidth; ix += gridSize)
//{
// var actual_ix = ix / gridSize;
// for (int iy = 0; iy < canvas.ActualHeight; iy += gridSize)
// {
// var actual_iy = iy / gridSize;
// var isBackColor = (actual_ix % 2 == 0 && actual_iy % 2 == 0) || (actual_ix % 2 == 1 && actual_iy % 2 == 1);
// Path path = new Path()
// {
// Data = new RectangleGeometry(new Rect(new Point(ix, iy), new Size(gridSize, gridSize))),
// Stroke = Brushes.Transparent,
// StrokeThickness = 0,
// Fill = (isBackColor ? this.FindResource("gridBackBrushKey") : this.FindResource("gridFrontBrushKey")) as Brush
// };
// path.Data.Transform = scaleTransform;
// canvas.Children.Add(path);
// }
//}
}
