public static void RenderGlyph(
TrueTypeFont.Glyph glyph,
PixelData output,
Vector2Int outputPosition,
Vector2Int outputSize,
double range,
in Vector2Double scale,
public static Shape FromGlyph(TrueTypeFont.Glyph glyph, bool invertYAxis)
{
if (null == glyph)
{
return(null);
}
Shape shape = new Shape
{
contours = new Contour[glyph.contours.Length]
};
for (int i = 0; i < glyph.contours.Length; i++)
{
ref var glyphContour = ref glyph.contours[i];
List <Edge> edges = new List <Edge>();
Vector2Double last = glyph.points[glyphContour.start].xy;
Vector2Double start = last;
for (int p = 1; p < glyphContour.length;)
{
ref var glyphPoint = ref glyph.points[glyphContour.start + p++];
// Quadratic edge?
if (glyphPoint.curve == TrueTypeFont.CurveType.Conic)
{
var control = glyphPoint.xy;
for (; p < glyphContour.length;)
{
glyphPoint = ref glyph.points[glyphContour.start + p++];
if (glyphPoint.curve != TrueTypeFont.CurveType.Conic)
{
edges.Add(new QuadraticEdge(
new Vector2Double(last.x, last.y),
new Vector2Double(control.x, control.y),
new Vector2Double(glyphPoint.xy.x, glyphPoint.xy.y)
));
last = glyphPoint.xy;
break;
}
var middle = new Vector2Double((control.x + glyphPoint.xy.x) / 2, (control.y + glyphPoint.xy.y) / 2);
edges.Add(new QuadraticEdge(
new Vector2Double(last.x, last.y),
new Vector2Double(control.x, control.y),
new Vector2Double(middle.x, middle.y)
));
last = middle;
control = glyphPoint.xy;
}
if (p == glyphContour.length)
{
if (glyph.points[glyphContour.start + glyphContour.length - 1].curve == TrueTypeFont.CurveType.Conic)
{
edges.Add(new QuadraticEdge(
new Vector2Double(last.x, last.y),
new Vector2Double(control.x, control.y),
new Vector2Double(start.x, start.y)
));
}
else
{
edges.Add(new LinearEdge(
new Vector2Double(last.x, last.y),
new Vector2Double(start.x, start.y)
));
}
}
// Linear edge..
}
else
{
edges.Add(new LinearEdge(
new Vector2Double(last.x, last.y),
new Vector2Double(glyphPoint.xy.x, glyphPoint.xy.y)
));
last = glyphPoint.xy;
// If we ended on a linear then finish on a linear
if (p == glyphContour.length)
{
edges.Add(new LinearEdge(
new Vector2Double(last.x, last.y),
new Vector2Double(start.x, start.y)
));
}
}
}
