private Ellipse CreateEllipticalArc(ArcShape arc, double dx, double dy)
{
var a = new Spatial.Arc.GdiArc(
Spatial.Point2.FromXY(arc.Point1.X, arc.Point1.Y),
Spatial.Point2.FromXY(arc.Point2.X, arc.Point2.Y),
Spatial.Point2.FromXY(arc.Point3.X, arc.Point3.Y),
Spatial.Point2.FromXY(arc.Point4.X, arc.Point4.Y));
double _cx = ToDxfX(a.X + dx + a.Width / 2.0);
double _cy = ToDxfY(a.Y + dy + a.Height / 2.0);
double minor = Math.Min(a.Height, a.Width);
double major = Math.Max(a.Height, a.Width);
double startAngle = -a.EndAngle;
double endAngle = -a.StartAngle;
double rotation = 0;
if (a.Height > a.Width)
{
startAngle += 90;
endAngle += 90;
rotation = -90;
}
return(new Ellipse()
{
Center = new Vector3(_cx, _cy, 0),
MajorAxis = major,
MinorAxis = minor,
StartAngle = startAngle,
EndAngle = endAngle,
Rotation = rotation
});
}
/// <inheritdoc/>
public override void Draw(object dc, ArcShape arc, double dx, double dy, object db, object r)
{
var _gfx = dc as XGraphics;
var a = new Spatial.Arc.GdiArc(
Spatial.Point2.FromXY(arc.Point1.X, arc.Point1.Y),
Spatial.Point2.FromXY(arc.Point2.X, arc.Point2.Y),
Spatial.Point2.FromXY(arc.Point3.X, arc.Point3.Y),
Spatial.Point2.FromXY(arc.Point4.X, arc.Point4.Y));
if (arc.IsFilled)
{
var path = new XGraphicsPath();
// NOTE: Not implemented in PdfSharp Core version.
path.AddArc(
_scaleToPage(a.X + dx),
_scaleToPage(a.Y + dy),
_scaleToPage(a.Width),
_scaleToPage(a.Height),
a.StartAngle,
a.SweepAngle);
if (arc.IsStroked)
{
_gfx.DrawPath(
ToXPen(arc.Style, _scaleToPage, _sourceDpi, _targetDpi),
ToXSolidBrush(arc.Style.Fill),
path);
}
else
{
_gfx.DrawPath(
ToXSolidBrush(arc.Style.Fill),
path);
}
}
else
{
if (arc.IsStroked)
{
_gfx.DrawArc(
ToXPen(arc.Style, _scaleToPage, _sourceDpi, _targetDpi),
_scaleToPage(a.X + dx),
_scaleToPage(a.Y + dy),
_scaleToPage(a.Width),
_scaleToPage(a.Height),
a.StartAngle,
a.SweepAngle);
}
}
}
