public static void TesselateStroke(List <List <Vector2> > inputShapes, Color32 color, out List <List <Vector2> > simplifiedShapes, out Vector3[] vertices, out int[] triangles, out Color32[] colors32)
{
simplifiedShapes = null;
vertices = null;
triangles = null;
colors32 = null;
if (inputShapes == null || inputShapes.Count == 0)
{
return;
}
int i, j;
simplifiedShapes = new List <List <Vector2> >();
PolyFillType fillType = PolyFillType.pftNonZero;
for (i = 0; i < inputShapes.Count; i++)
{
if (inputShapes[i] == null || inputShapes.Count == 0)
{
continue;
}
List <List <Vector2> > output = SVGGeom.SimplifyPolygon(inputShapes[i], fillType);
if (output == null || output.Count == 0)
{
simplifiedShapes.Add(inputShapes[i]);
}
else
{
simplifiedShapes.AddRange(output);
}
}
LibTessDotNet.Tess tesselation = new LibTessDotNet.Tess();
LibTessDotNet.ContourVertex[] path;
for (i = 0; i < simplifiedShapes.Count; i++)
{
if (simplifiedShapes[i] == null || simplifiedShapes[i].Count < 2)
{
continue;
}
path = new LibTessDotNet.ContourVertex[simplifiedShapes[i].Count];
for (j = 0; j < simplifiedShapes[i].Count; j++)
{
path[j].Position = new LibTessDotNet.Vec3 {
X = simplifiedShapes[i][j].x, Y = simplifiedShapes[i][j].y, Z = 0f
};
}
tesselation.AddContour(path);
}
tesselation.Tessellate(LibTessDotNet.WindingRule.Positive, LibTessDotNet.ElementType.Polygons, 3);
if (tesselation.Vertices == null || tesselation.Vertices.Length == 0)
{
return;
}
int numVertices = tesselation.Vertices.Length;
int numTriangles = tesselation.ElementCount * 3;
triangles = new int[numTriangles];
vertices = new Vector3[numVertices];
colors32 = new Color32[numVertices];
for (i = 0; i < numVertices; i++)
{
vertices[i] = new Vector3(tesselation.Vertices[i].Position.X, tesselation.Vertices[i].Position.Y, 0f);
colors32[i] = color;
}
for (i = 0; i < numTriangles; i += 3)
{
triangles[i] = tesselation.Elements[i];
triangles[i + 1] = tesselation.Elements[i + 1];
triangles[i + 2] = tesselation.Elements[i + 2];
}
}
public static List <List <Vector2> > StrokeShape(List <StrokeSegment[]> segments, float thickness, Color32 color, StrokeLineJoin lineJoin, StrokeLineCap lineCap, float miterLimit = 4f, float[] dashArray = null, float dashOffset = 0f, ClosePathRule closeLine = ClosePathRule.NEVER, float roundQuality = 10f)
{
if (segments == null || segments.Count == 0)
{
return(null);
}
float totalCurveLength = 0f;
int i, j;
for (i = 0; i < segments.Count; i++)
{
if (segments[i] == null)
{
continue;
}
for (j = 0; j < segments[i].Length; j++)
{
totalCurveLength += segments[i][j].length;
}
}
if (totalCurveLength == 0f)
{
return(null);
}
bool useDash;
ProcessDashArray(ref dashArray, out useDash);
ClosePathRule closeSegments = closeLine;
List <StrokeSegment[]> finalSegments = new List <StrokeSegment[]>();
for (i = 0; i < segments.Count; i++)
{
if (segments[i] == null || segments[i].Length == 0)
{
continue;
}
if (!useDash)
{
finalSegments.Add(segments[i]);
}
else
{
finalSegments.AddRange(CreateDashedStroke(segments[i], dashArray, dashOffset, ref closeSegments));
}
}
if (finalSegments.Count > 0)
{
List <List <Vector2> > finalPoints = new List <List <Vector2> >();
for (i = 0; i < finalSegments.Count; i++)
{
List <Vector2> points = Stroke(finalSegments[i], thickness, color, lineJoin, lineCap, miterLimit, closeSegments, roundQuality);
if (points == null || points.Count < 2)
{
continue;
}
List <List <Vector2> > simplifiedShape = SVGGeom.SimplifyPolygon(points);
for (j = 0; j < simplifiedShape.Count; j++)
{
if (simplifiedShape[j] == null || simplifiedShape[j].Count == 0)
{
continue;
}
finalPoints.Add(simplifiedShape[j]);
}
}
return(finalPoints);
}
else
{
return(null);
}
}