void CreateAndRenderCombined(Painter p, VertexStore vxsSnap1, VertexStore vxsSnap2)
{
//TODO: review here again.
List <VertexStore> resultPolygons = new List <VertexStore>();
PolygonClippingDemoHelper.CreateAndRenderCombined(vxsSnap1, vxsSnap2, OpOption, false, resultPolygons);
if (resultPolygons.Count > 0)
{
//draw combine result
p.Fill(resultPolygons[0], ColorEx.Make(0.5f, 0.0f, 0f, 0.5f));
}
}
void RenderPolygon(Painter p)
{
switch (this.PolygonSet)
{
case PolygonExampleSet.TwoSimplePaths:
{
//------------------------------------
// Two simple paths
using (Tools.BorrowVxs(out var v1, out var v2))
{
double x = _x - Width / 2 + 100;
double y = _y - Height / 2 + 100;
PolygonClippingDemoHelper.WritePath1(v1, x, y);
PolygonClippingDemoHelper.WritePath2(v2, x, y);
p.Fill(v1, ColorEx.Make(0f, 0f, 0f, 0.1f));
p.Fill(v2, ColorEx.Make(0f, 0.6f, 0f, 0.1f));
CreateAndRenderCombined(p, v1, v2);
}
}
break;
case PolygonExampleSet.CloseStroke:
{
//------------------------------------
// Closed stroke
using (Tools.BorrowVxs(out var v1, out var v2))
{
double x = _x - Width / 2 + 100;
double y = _y - Height / 2 + 100;
PolygonClippingDemoHelper.WritePath1(v1, x, y);
PolygonClippingDemoHelper.WritePath2(v2, x, y);
p.FillStroke(v1, 2, ColorEx.Make(0f, 0f, 0f, 0.1f));
p.FillStroke(v2, 3, ColorEx.Make(0f, 0.6f, 0f, 0.1f));
CreateAndRenderCombined(p, v1, v2);
}
}
break;
case PolygonExampleSet.GBAndArrow:
{
//------------------------------------
// Great Britain and Arrows
using (Tools.BorrowVxs(out var v1_gb_poly, out var v2_arrows))
{
AffineMat mat1 = AffineMat.Iden();
mat1.Translate(-1150, -1150);
mat1.Scale(2);
Affine mtx1 = new Affine(mat1);
PolygonClippingDemoHelper.WriteGBObject(v1_gb_poly, 0, 0, mtx1);
p.Fill(v1_gb_poly, ColorEx.Make(0.5f, 0.5f, 0f, 0.1f));
p.FillStroke(v1_gb_poly, 0.1f, ColorEx.Make(0, 0, 0));
//
Affine mtx2 = mtx1 * Affine.NewTranslation(_x - Width / 2, _y - Height / 2);
PolygonClippingDemoHelper.WriteArrow(v2_arrows, 0, 0, mtx2);
p.Fill(v2_arrows, ColorEx.Make(0f, 0.5f, 0.5f, 0.1f));
CreateAndRenderCombined(p, v1_gb_poly, v2_arrows);
}
}
break;
case PolygonExampleSet.GBAndSpiral:
{
//------------------------------------
// Great Britain and a Spiral
//
using (Tools.BorrowVxs(out var v1_gb_poly))
using (Tools.BorrowVxs(out var v2_spiral, out var v2_spiral_outline))
using (Tools.BorrowStroke(out var stroke))
{
AffineMat mat = AffineMat.Iden();
mat.Translate(-1150, -1150);
mat.Scale(2);
Affine mtx = new Affine(mat);
PolygonClippingDemoHelper.WriteGBObject(v1_gb_poly, 0, 0, mtx);
PolygonClippingDemoHelper.WriteSpiral(v2_spiral, _x, _y);
p.Fill(v1_gb_poly, ColorEx.Make(0.5f, 0.5f, 0f, 0.1f));
p.FillStroke(v1_gb_poly, 0.1f, Color.Black);
stroke.Width = 15;
p.Fill(stroke.MakeVxs(v2_spiral, v2_spiral_outline), ColorEx.Make(0.0f, 0.5f, 0.5f, 0.1f));
CreateAndRenderCombined(p, v1_gb_poly, v2_spiral_outline);
}
}
break;
case PolygonExampleSet.SprialAndGlyph:
{
//------------------------------------
// Spiral and glyph
using (Tools.BorrowVxs(out var v1_spiral, out var v1_spiralOutline, out var v3))
using (Tools.BorrowVxs(out var glyph_vxs))
using (Tools.BorrowStroke(out var stroke))
{
//Affine mtx = Affine.New(
// AffinePlan.Scale(4),
// AffinePlan.Translate(220, 200));
AffineMat mat = AffineMat.Iden();
mat.Scale(4);
mat.Translate(220, 200);
PolygonClippingDemoHelper.WriteSpiral(v1_spiral, _x, _y);
PolygonClippingDemoHelper.WriteGlyphObj(glyph_vxs, 0, 0, new Affine(mat));
//-----------------------------------------
stroke.Width = 1;
stroke.MakeVxs(v1_spiral, v1_spiralOutline);
CreateAndRenderCombined(p, v1_spiralOutline, glyph_vxs);
p.Fill(v1_spiralOutline, ColorEx.Make(0f, 0f, 0f, 0.1f));
p.Fill(glyph_vxs, ColorEx.Make(0f, 0.6f, 0f, 0.1f));
}
}
break;
}
}
