public static string ToDefinitionString(this PathF path, float ppu = 1)
{
var writer = new StringWriter();
for (var i = 0; i < path.OperationCount; i++)
{
var type = path.GetSegmentType(i);
var points = path.GetPointsForSegment(i);
if (type == PathOperation.Move)
{
writer.Write("M");
WritePoint(writer, points[0], ppu);
}
else if (type == PathOperation.Line)
{
writer.Write(" L");
WritePoint(writer, points[0], ppu);
}
else if (type == PathOperation.Quad)
{
writer.Write(" Q");
WritePoint(writer, points[0], ppu);
writer.Write(" ");
WritePoint(writer, points[1], ppu);
}
else if (type == PathOperation.Cubic)
{
writer.Write(" C");
WritePoint(writer, points[0], ppu);
writer.Write(" ");
WritePoint(writer, points[1], ppu);
writer.Write(" ");
WritePoint(writer, points[2], ppu);
}
else if (type == PathOperation.Close)
{
writer.Write(" Z ");
}
}
return(writer.ToString());
}
private void ArcTo(bool isRelative)
{
var startPoint = _relativePoint ?? default;
var rx = NextValue;
var ry = NextValue;
var r = NextValue;
var largeArcFlag = NextBoolValue;
var sweepFlag = NextBoolValue;
var endPoint = NewPoint(NextValue, NextValue, isRelative, false);
var arcPath = new PathF(startPoint);
arcPath.SVGArcTo(rx, ry, r, largeArcFlag, sweepFlag, endPoint.X, endPoint.Y, startPoint.X, startPoint.Y);
for (int s = 0; s < arcPath.OperationCount; s++)
{
var segmentType = arcPath.GetSegmentType(s);
var pointsInSegment = arcPath.GetPointsForSegment(s);
if (segmentType == PathOperation.Move)
{
// do nothing
}
else if (segmentType == PathOperation.Line)
{
_path.LineTo(pointsInSegment[0]);
}
else if (segmentType == PathOperation.Cubic)
{
_path.CurveTo(pointsInSegment[0], pointsInSegment[1], pointsInSegment[2]);
}
else if (segmentType == PathOperation.Quad)
{
_path.QuadTo(pointsInSegment[0], pointsInSegment[1]);
}
}
_relativePoint = _path.LastPoint;
}
