private void DrawPath(ReticlePath path)
{
using var canvasPath = mCanvas.CreatePath();
foreach (var pathElement in path.Elements)
{
switch (pathElement)
{
case ReticlePathElementMoveTo moveTo:
{
mTranslator.Transform(moveTo.Position.X, moveTo.Position.Y, out float x, out float y);
canvasPath.MoveTo(x, y);
}
break;
case ReticlePathElementLineTo lineTo:
{
mTranslator.Transform(lineTo.Position.X, lineTo.Position.Y, out float x, out float y);
canvasPath.LineTo(x, y);
}
break;
case ReticlePathElementArc arc:
{
mTranslator.Transform(arc.Position.X, arc.Position.Y, out float x, out float y);
canvasPath.Arc(mTranslator.TransformL(arc.Radius), x, y, arc.MajorArc, arc.ClockwiseDirection);
}
break;
}
}
if (path.Fill ?? false)
{
canvasPath.Close();
}
mCanvas.Path(canvasPath, mTranslator.TransformL(path.LineWidth), path.Fill ?? false, path.Color ?? "black");
}
/// <summary>
/// <para>Draw individual element.</para>
/// <para>The method may be used to implement additional visualization.</para>
/// </summary>
/// <param name="element"></param>
public void DrawElement(ReticleElement element)
{
switch (element)
{
case ReticleLine line:
{
translator.Transform(line.Start.X, line.Start.Y, out float x0, out float y0);
translator.Transform(line.End.X, line.End.Y, out float x1, out float y1);
canvas.Line(x0, y0, x1, y1, translator.TransformL(line.LineWidth), line.Color ?? "black");
}
break;
case ReticleCircle circle:
{
translator.Transform(circle.Center.X, circle.Center.Y, out float x0, out float y0);
canvas.Circle(x0, y0, translator.TransformL(circle.Radius), translator.TransformL(circle.LineWidth), circle.Fill ?? false, circle.Color ?? "black");
}
break;
case ReticleRectangle rectangle:
{
translator.Transform(rectangle.TopLeft.X, rectangle.TopLeft.Y, out float x0, out float y0);
float x1 = translator.TransformL(rectangle.Size.X);
float y1 = translator.TransformL(rectangle.Size.Y);
canvas.Rectangle(x0, y0, x0 + x1, y0 + y1, translator.TransformL(rectangle.LineWidth), rectangle.Fill ?? false, rectangle.Color ?? "black");
}
break;
case ReticleText text:
{
translator.Transform(text.Position.X, text.Position.Y, out float x0, out float y0);
var h = translator.TransformL(text.TextHeight);
canvas.Text(x0, y0, h, text.Text, text.Color);
}
break;
case ReticlePath path:
{
using var path1 = canvas.CreatePath();
foreach (var pathElement in path.Elements)
{
switch (pathElement)
{
case ReticlePathElementMoveTo moveTo:
{
translator.Transform(moveTo.Position.X, moveTo.Position.Y, out float x, out float y);
path1.MoveTo(x, y);
}
break;
case ReticlePathElementLineTo lineTo:
{
translator.Transform(lineTo.Position.X, lineTo.Position.Y, out float x, out float y);
path1.LineTo(x, y);
}
break;
case ReticlePathElementArc arc:
{
translator.Transform(arc.Position.X, arc.Position.Y, out float x, out float y);
path1.Arc(translator.TransformL(arc.Radius), x, y, arc.MajorArc, arc.ClockwiseDirection);
}
break;
}
}
if (path.Fill ?? false)
{
path1.Close();
}
canvas.Path(path1, translator.TransformL(path.LineWidth), path.Fill ?? false, path.Color ?? "black");
}
break;
}
}