private void AddLineCap(PointFP p1, PointFP p2, int lineCap) { if (lineCap == PenFP.LINECAP_BUTT || p1.Equals(p2)) { return; } var dx = p2.X - p1.X; var dy = p2.Y - p1.Y; var len = PointFP.Distance(dx, dy); var cap = lineCap == PenFP.LINECAP_ROUND ? GraphicsPathFP.ROUNDCAP : GraphicsPathFP.SQUARECAP; dx = MathFP.Mul(_ffRad, MathFP.Div(dx, len)); dy = MathFP.Mul(_ffRad, MathFP.Div(dy, len)); var m = new MatrixFP(dx, dx, dy, -dy, p2.X, p2.Y); _outline.AddMoveTo(new PointFP(0, GraphicsPathFP.ONE).Transform(m)); for (var i = 0; i < cap.Length; i++) { _outline.AddLineTo(new PointFP(cap[i]).Transform(m)); } _outline.AddLineTo(new PointFP(0, -GraphicsPathFP.ONE).Transform(m)); _outline.AddClose(); }
//////////////////////////////////////////////////////////////////////////// //--------------------------------- REVISIONS ------------------------------ // Date Name Tracking # Description // --------- ------------------- ------------- ---------------------- // 13JUN2009 James Shen Initial Creation //////////////////////////////////////////////////////////////////////////// /** * get the tail outline. * @param ff_rad * @return */ public LineFP GetTailOutline(int ffRad) { var c = GetCenter(); var p = new PointFP(Pt2.X - c.X, Pt2.Y - c.Y); p.Reset(p.Y, -p.X); var dis = PointFP.Distance(PointFP.Origin, p); if (dis == 0) { dis = 1; } p.Reset(MathFP.Div(MathFP.Mul(p.X, ffRad), dis), MathFP.Div(MathFP.Mul(p.Y, ffRad), dis)); return(new LineFP(Pt2.X - p.X, Pt2.Y - p.Y, Pt2.X + p.X, Pt2.Y + p.Y)); }
//////////////////////////////////////////////////////////////////////////// //--------------------------------- REVISIONS ------------------------------ // Date Name Tracking # Description // --------- ------------------- ------------- ---------------------- // 13JUN2009 James Shen Initial Creation //////////////////////////////////////////////////////////////////////////// /** * get the lenght of the line. */ public int GetLength() { return(PointFP.Distance(Pt1, Pt2)); }