public bool Contains(Vector2 point)
{
List <Triangle2D> polygonTriangles = PolygonTriangulator.Triangulate(this);
foreach (Triangle2D triangle in polygonTriangles)
{
if (triangle.Contains(point))
{
return(true);
}
}
return(false);
}
public void OpenTK()
{
{
List <Vector2> points = new List <Vector2>();
points.Add(new Vector2(100, 100));
points.Add(new Vector2(100, 200));
points.Add(new Vector2(200, 200));
points.Add(new Vector2(200, 100));
Vector2 centroid = PolygonTriangulator.Centroid(points, out float area);
Check.That(centroid.X == 150 && centroid.Y == 150 && area == 10000);
}
{
List <Vector2> points = new List <Vector2>();
points.Add(new Vector2(0, 100));
points.Add(new Vector2(100, 200));
points.Add(new Vector2(100, 100));
points.Add(new Vector2(200, 200));
points.Add(new Vector2(300, 100));
points.Add(new Vector2(150, 0));
points.Add(new Vector2(0, 50));
List <List <Vector2> > res = PolygonTriangulator.Triangulate(points, false);
Check.That(res.Count == 3);
Check.That(res[0].Count == 3);
Check.That(res[0][0] == new Vector2(0, 100));
Check.That(res[0][1] == new Vector2(100, 200));
Check.That(res[0][2] == new Vector2(100, 100));
Check.That(res[1].Count == 4);
Check.That(res[1][0] == new Vector2(100, 100));
Check.That(res[1][1] == new Vector2(200, 200));
Check.That(res[1][2] == new Vector2(300, 100));
Check.That(res[1][3] == new Vector2(150, 0));
Check.That(res[2].Count == 4);
Check.That(res[2][0] == new Vector2(150, 0));
Check.That(res[2][1] == new Vector2(0, 50));
Check.That(res[2][2] == new Vector2(0, 100));
Check.That(res[1][3] == new Vector2(100, 100));
}
}
public void CreateObjects(string name, GLItemsList items, GLRenderProgramSortedList rObjects, GalacticMapping galmap, float sizeofname = 5000, ManualCorrections[] corr = null)
{
List <Vector4> vertexcolourregions = new List <Vector4>();
List <Vector4> vertexregionsoutlines = new List <Vector4>();
List <ushort> vertexregionoutlineindex = new List <ushort>();
Size bitmapsize = new Size(250, 22);
textrenderer = new GLBitmaps(name + "-bitmaps", rObjects, bitmapsize, depthtest: false, yfixed: true);
items.Add(textrenderer);
StringFormat fmt = new StringFormat(StringFormatFlags.NoWrap)
{
Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center
};
Font fnt = new Font("MS Sans Serif", 12F);
int cindex = 0;
foreach (GalacticMapObject gmo in galmap.galacticMapObjects)
{
if (gmo.galMapType.Group == GalMapType.GalMapGroup.Regions)
{
string gmoname = gmo.name;
List <Vector2> polygonxz = new List <Vector2>(); // needs it in x/z and in vector2's
foreach (var pd in gmo.points)
{
polygonxz.Add(new Vector2((float)pd.X, (float)pd.Z)); // can be concave and wound the wrong way..
vertexregionoutlineindex.Add((ushort)(vertexregionsoutlines.Count));
vertexregionsoutlines.Add(new Vector4((float)pd.X, 0, (float)pd.Z, 1));
}
vertexregionoutlineindex.Add(0xffff); // primitive restart to break polygon
List <List <Vector2> > polys = PolygonTriangulator.Triangulate(polygonxz, false); // cut into convex polygons first - because we want the biggest possible area for naming purposes
Vector2 avgcentroid = new Vector2(0, 0);
int pointsaveraged = 0;
if (polys.Count > 0) // just in case..
{
foreach (List <Vector2> points in polys) // now for every poly
{
List <List <Vector2> > polytri;
if (points.Count == 3) // already a triangle..
{
polytri = new List <List <Vector2> >()
{
new List <Vector2>()
{
points[0], points[1], points[2]
}
}
}
;
else
{
polytri = PolygonTriangulator.Triangulate(points, true); // cut into triangles not polygons
}
foreach (List <Vector2> pt in polytri)
{
vertexcolourregions.Add(pt[0].ToVector4XZ(w: cindex));
vertexcolourregions.Add(pt[2].ToVector4XZ(w: cindex));
vertexcolourregions.Add(pt[1].ToVector4XZ(w: cindex));
var cx = (pt[0].X + pt[1].X + pt[2].X) / 3;
var cy = (pt[0].Y + pt[1].Y + pt[2].Y) / 3;
avgcentroid = new Vector2(avgcentroid.X + cx, avgcentroid.Y + cy);
pointsaveraged++;
//foreach (var pd in pt) // debug
//{
// vertexregionoutlineindex.Add((ushort)(vertexregionsoutlines.Count));
// vertexregionsoutlines.Add(new Vector4((float)pd.X, 0, (float)pd.Y, 1));
//}
//vertexregionoutlineindex.Add(0xffff); // primitive restart to break polygon
}
}
cindex = (cindex + 1) % array.Length;
Vector2 centeroid = PolygonTriangulator.WeightedCentroids(polys);
if (corr != null) // allows the centeroid to be nerfed slightly
{
var entry = Array.Find(corr, x => gmo.name.Contains(x.name, StringComparison.InvariantCultureIgnoreCase));
if (entry != null)
{
centeroid = new Vector2(centeroid.X + entry.x, centeroid.Y + entry.y);
}
}
var final = PolygonTriangulator.FitInsideConvexPoly(polys, centeroid, new Vector2(sizeofname, sizeofname * (float)bitmapsize.Height / (float)bitmapsize.Width));
Vector3 bestpos = new Vector3(final.Item1.X, 0, final.Item1.Y);
Vector3 bestsize = new Vector3(final.Item2.X, 1, final.Item2.Y);
textrenderer.Add(null, gmo.name, fnt, Color.White, Color.Transparent, bestpos, bestsize, new Vector3(0, 0, 0), fmt, alphafadescalar: 5000, alphafadepos: 500);
}
}
}
fmt.Dispose();
fnt.Dispose();
// regions
var vertregion = new GLPLVertexShaderWorldPalletColor(array.ToVector4(0.1f), true);
var fragregion = new GLPLFragmentShaderVSColor();
regionshader = new GLShaderPipeline(vertregion, fragregion, null, null);
items.Add(regionshader);
GLRenderState rt = GLRenderState.Tri();
rt.DepthTest = false;
var ridisplay = GLRenderableItem.CreateVector4(items, OpenTK.Graphics.OpenGL4.PrimitiveType.Triangles, rt, vertexcolourregions.ToArray());
rObjects.Add(regionshader, name + "-regions", ridisplay);
// outlines
var vertoutline = new GLPLVertexShaderWorldCoord(true);
var fragoutline = new GLPLFragmentShaderFixedColor(Color.Cyan);
outlineshader = new GLShaderPipeline(vertoutline, fragoutline, null, null);
items.Add(outlineshader);
GLRenderState ro = GLRenderState.Lines();
ro.DepthTest = false;
ro.PrimitiveRestart = 0xffff;
var rioutline = GLRenderableItem.CreateVector4(items, OpenTK.Graphics.OpenGL4.PrimitiveType.LineStrip, ro, vertexregionsoutlines.ToArray());
rioutline.CreateElementIndexUShort(items.NewBuffer(), vertexregionoutlineindex.ToArray());
rObjects.Add(outlineshader, name + "-outlines", rioutline);
renderstate = 7;
}