Source code for enable.savage.svg.backends.wx

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from enable.savage.svg import svg_extras

[docs]def elliptical_arc_to(self, rx, ry, phi, large_arc_flag, sweep_flag, x2, y2): import wx x1, y1 = self.GetCurrentPoint() arcs = svg_extras.elliptical_arc_to( self, rx, ry, phi, large_arc_flag, sweep_flag, x1, y1, x2, y2 ) for arc in arcs: path = wx.GraphicsRenderer_GetDefaultRenderer().CreatePath() path.MoveToPoint(x1, y1) path.AddCurveToPoint(*arc) self.AddPath(path) x1, y1 = self.GetCurrentPoint() self.MoveToPoint(x1, y1) self.CloseSubpath()
[docs]def AddEllipticalArc(self, x, y, width, height, theta, dtheta, clockwise=False): """ Draws an arc of an ellipse within bounding rect (x,y,w,h) from startArc to endArc (in degrees, relative to the horizontal line of the eclipse) """ import wx # compute the cubic bezier and add that to the path by calling # AddCurveToPoint sub_paths = svg_extras.bezier_arc( x, y, x + width, y + height, theta, dtheta ) for sub_path in sub_paths: x1, y1, cx1, cy1, cx2, cy2, x2, y2 = sub_path path = wx.GraphicsRenderer_GetDefaultRenderer().CreatePath() path.MoveToPoint(x1, y1) path.AddCurveToPoint(cx1, cy1, cx2, cy2, x2, y2) self.AddPath(path) self.MoveToPoint(path.GetCurrentPoint()) self.CloseSubpath()
try: import wx except ImportError: pass else: if not hasattr(wx.GraphicsPath, "AddEllipticalArcTo"): wx.GraphicsPath.AddEllipticalArcTo = AddEllipticalArc wx.GraphicsPath.elliptical_arc_to = elliptical_arc_to del AddEllipticalArc del wx