public void DrawArrow(Color fillColor, PointF origin, float height, float width, VectorF direction, bool isFixedSize) { fillColor = _transform.Transform(fillColor); origin = _transform.Transform(origin); direction = _transform.Transform(-direction); direction.Normalize(); if (isFixedSize) { _primitives.Add(new _Arrow(origin, height, width, direction, fillColor)); } else { var p1 = origin + direction * height; var v = new VectorF(direction.Y, -direction.X); var wd = v * width / 2; var p2 = p1 + wd; p1 -= wd; var geo = new _ComplexGeometry(); var subgeo = new _SimpleGeometry(PenF.NULL, fillColor, origin, false); subgeo.StreamTo(new _Line(origin, p1, PenF.NULL)); subgeo.StreamTo(new _Line(p1, p2, PenF.NULL)); subgeo.StreamTo(new _Line(p2, origin, PenF.NULL)); geo.AddChild(subgeo); geo.Close(); _primitives.Add(geo); } }
private void _DrawRectangle(PenF pen, Color?fillColor, params PointF[] points) { var geo = new _ComplexGeometry(); var subgeo = new _SimpleGeometry(pen, fillColor, points[0], false); subgeo.StreamTo(new _Line(points[0], points[1], pen)); subgeo.StreamTo(new _Line(points[1], points[2], pen)); subgeo.StreamTo(new _Line(points[2], points[3], pen)); subgeo.StreamTo(new _Line(points[3], points[0], pen)); geo.AddChild(subgeo); geo.Close(); _primitives.Add(geo); }
private void _EndFigures(bool flag = false) { if (_geo == null) { throw new InvalidOperationException("Must call BeginFigure before call this method!"); } if (_subGeo.IsClosed && _begin != _current) { _LineTo(_begin.Value, true); } else { _subGeo.UnClosedLine = _DrawLine(PenF.NULL, _current.Value, _begin.Value); } _geo.Close(); _geo._wholeFill = flag; _primitives.Add(_geo); _geo = null; _begin = null; _current = null; }