public Tile plot(Label label, TextBlock labelTB, Canvas canvas, Image img, RotateTransform trans)
{
this.labelTextBlock = labelTB;
this.bitmap = canvas;
this.labelIcon = img;
this.labelTrans = trans;
iustc.map.data.Rect bounds = getLabelBounds(label);
int labelWidth = (int)Math.Abs(bounds.right - bounds.left);
int labelHeight = (int)Math.Abs(bounds.bottom - bounds.top);
PointD[] points = new PointD[]{
rotate(new PointD(0, labelHeight), label.orient),
rotate(new PointD(labelWidth, 0), label.orient),
rotate(new PointD(labelWidth, labelHeight), label.orient)};
bounds = new iustc.map.data.Rect(0, labelHeight, 0, labelHeight);
foreach (PointD p in points)
{
int x = (int)Math.Round(p.x);
int y = labelHeight - (int)Math.Round(p.y);
bounds.left = Math.Min(bounds.left, x);
bounds.right = Math.Max(bounds.right, x);
bounds.top = Math.Min(bounds.top, y);
bounds.bottom = Math.Max(bounds.bottom, y);
}
int width = Math.Max(1, Math.Abs(bounds.right - bounds.left));
int height = Math.Max(1, Math.Abs(bounds.bottom - bounds.top));
if (isRoadType(label.type))
{
PointD p1 = rotate(new PointD(0, labelHeight / 2), label.orient);
PointD p2 = rotate(new PointD(labelWidth, labelHeight / 2), label.orient);
int x1 = (int)Math.Round(p1.x) - bounds.left;
int y1 = labelHeight - (int)Math.Round(p1.y) - bounds.top;
int x2 = (int)Math.Round(p2.x) - bounds.left;
int y2 = labelHeight - (int)Math.Round(p2.y) - bounds.top;
labelTextBlock.Text = label.text;
labelTextBlock.Foreground = PlotterHelper.ROAD_TEXT_COLOR;
labelTextBlock.RenderTransformOrigin = new Point(0.5, 0.5);
labelTrans.Angle = -label.orient;
labelTextBlock.RenderTransform = labelTrans;
bitmap.Children.Add(labelTextBlock);
return new Tile(label.lat, label.lon, bitmap, (x1+x2)/2, (y1+y2)/2);
}
else
{
PointD p1 = rotate(new PointD(0, labelHeight / 2), label.orient);
PointD p2 = rotate(new PointD(labelWidth, labelHeight / 2), label.orient);
int x1 = (int)Math.Round(p1.x) - bounds.left;
int y1 = labelHeight - (int)Math.Round(p1.y) - bounds.top;
int x2 = (int)Math.Round(p2.x) - bounds.left;
int y2 = labelHeight - (int)Math.Round(p2.y) - bounds.top;
labelTextBlock.Text = label.text;
labelTextBlock.Foreground = PlotterHelper.POI_TEXT_COLOR;
labelTextBlock.RenderTransformOrigin = new Point(0.5, 0.5);
labelTrans.Angle = -label.orient;
labelTextBlock.RenderTransform = labelTrans;
BitmapImage iconOfRoad = getLabelIcon(label);
labelIcon.Source = iconOfRoad;
bitmap.Children.Add(this.labelIcon);
bitmap.Children.Add(labelTextBlock);
labelIcon.SetValue(Canvas.TopProperty, 10.0);
labelTextBlock.SetValue(Canvas.LeftProperty, 10.0);
return new Tile(label.lat, label.lon, bitmap, (x1+x2)/2, (y1+y2)/2);
}
}
private PointD rotate(PointD v, float r)
{
double c = (double)Math.Cos(r), s = (double)Math.Sin(r);
return new PointD(v.x * c - v.y * s, v.x * s + v.y * c);
}