protected void DrawUnits(Cairo.Context g, Cairo.Distance dimensions) { g.Save(); g.MoveTo(105, 105); g.LineTo(105, 205); g.LineTo(205, 205); g.LineTo(205, 105); g.LineTo(105, 105); g.Restore(); g.Color = MapWidget.convert_color(this.blue); g.FillPreserve(); g.Color = MapWidget.convert_color(this.black); g.LineWidth = 1; g.Stroke(); }
protected void DrawMouse(Cairo.Context g, Cairo.Distance dimensions) { if (this.drawmouse) { g.Save(); g.MoveTo((double)this.mouse_loc.X, 0); g.LineTo((double)this.mouse_loc.X, dimensions.Dy); g.MoveTo(0, (double)this.mouse_loc.Y); g.LineTo(dimensions.Dx, (double)this.mouse_loc.Y); g.Restore(); g.Color = MapWidget.convert_color(this.red); g.LineWidth = 1; g.Stroke(); } }
protected void DrawMapGrid(Cairo.Context g, Cairo.Distance dimensions) { g.Save(); double xspan = dimensions.Dx / MapWidget.xgridlines; double yspan = dimensions.Dy / MapWidget.ygridlines; xspan = yspan = 10.0; //Console.WriteLine ("dimensions={0}:{1} span={2}:{3}", dimensions.Dx, dimensions.Dy, xspan, yspan); /* * dimensions=1000:1000 span=1000:10 * dimensions=1000:1000 span=1000:10 * dimensions=1428:1000 span=1000:14.28 */ Cairo.PointD location = new Cairo.PointD(0.0, 0.0); // move along x axis for (int i = 0; i < MapWidget.xgridlines; i++) { location.X += xspan; Cairo.PointD p = new Cairo.PointD(location.X, 0); g.MoveTo(p); g.LineTo(location.X, ysize); } // move along y axis for (int i = 0; i < MapWidget.ygridlines; i++) { location.Y += yspan; Cairo.PointD p = new Cairo.PointD(0, location.Y); g.MoveTo(p); g.LineTo(xsize, location.Y); } g.Restore(); //g.Color = new Cairo.Color (86.0, 86.0, 86.0); g.Color = MapWidget.convert_color(this.gray); g.LineWidth = 1; g.Stroke(); }