private void DrawPoint(DrawingContext drawingContext, CS2dPoint element)
{
Point p = TransformXY(new Point(element.X, element.Y));
double r = element.Size;
Pen pen = element.Stroke == null ? null : new Pen(element.Stroke, 1);
Brush brush = element.FillBrush;
drawingContext.DrawEllipse(brush, pen, p, r, r);
}
private void UpdateElements()
{
if (_elements == null)
{
return;
}
double xMin = double.MaxValue;
double xMax = double.MinValue;
double yMin = double.MaxValue;
double yMax = double.MinValue;
foreach (CS2dShape element in _elements)
{
if (element is CS2dPoint)
{
CS2dPoint t = element as CS2dPoint;
if (xMin > t.X)
{
xMin = t.X;
}
if (xMax < t.X)
{
xMax = t.X;
}
if (yMin > t.Y)
{
yMin = t.Y;
}
if (yMax < t.Y)
{
yMax = t.Y;
}
}
else if (element is CS2dPath)
{
foreach (Coast.Math.Vector2 v in ((CS2dPath)element).Segments)
{
if (xMin > v.X)
{
xMin = v.X;
}
if (xMax < v.X)
{
xMax = v.X;
}
if (yMin > v.Y)
{
yMin = v.Y;
}
if (yMax < v.Y)
{
yMax = v.Y;
}
}
}
else if (element is CS2dLine)
{
CS2dLine t = element as CS2dLine;
if (xMin > t.StartPoint.X)
{
xMin = t.StartPoint.X;
}
if (xMax < t.StartPoint.X)
{
xMax = t.StartPoint.X;
}
if (yMin > t.StartPoint.Y)
{
yMin = t.StartPoint.Y;
}
if (yMax < t.StartPoint.Y)
{
yMax = t.StartPoint.Y;
}
if (xMin > t.EndPoint.X)
{
xMin = t.EndPoint.X;
}
if (xMax < t.EndPoint.X)
{
xMax = t.EndPoint.X;
}
if (yMin > t.EndPoint.Y)
{
yMin = t.EndPoint.Y;
}
if (yMax < t.EndPoint.Y)
{
yMax = t.EndPoint.Y;
}
}
else if (element is CS2dCircle)
{
//CS2dCircle t = element as CS2dCircle;
//if (xMin > t.CenterX - t.Radius) xMin = t.CenterX - t.Radius;
//if (xMax < t.CenterX + t.Radius) xMax = t.CenterX + t.Radius;
//if (yMin > t.CenterX - t.Radius) yMin = t.CenterX - t.Radius;
//if (yMax < t.CenterX + t.Radius) yMax = t.CenterX + t.Radius;
}
}
if (xMax - xMin <= 0)
{
Errored = true;
}
if (yMax - yMin <= 0)
{
Errored = true;
}
DisireXLowerRange = xMin - (xMax - xMin) * RangeExtensionRate;
DisireXUpperRange = xMax + (xMax - xMin) * RangeExtensionRate;
DisireYLowerRange = yMin - (yMax - yMin) * RangeExtensionRate;
DisireYUpperRange = yMax + (yMax - yMin) * RangeExtensionRate;
}