def __init__(self, svg, element, parent):
SVGRenderableElement.__init__(self, svg, element, parent)
self.svg = svg
self.target = element.get(XLINK_NS + "href", None)
self.x = parse_float(element.get('x', '0'))
self.y = parse_float(element.get('y', '0'))
self.transform = self.transform * Matrix.translation(self.x, self.y)
#clip off "#"
if self.target:
self.target = self.target[1:]
def _render_marker(self, a, b, marker, reverse=False):
if marker.orient == 'auto':
angle = (a - b).angle()
else:
angle = marker.orient
if reverse:
angle += math.pi
sx = (marker.marker_width / marker.vb_w) * self.style.stroke_width
sy = (marker.marker_height / marker.vb_h) * self.style.stroke_width
rx = marker.ref_x
ry = marker.ref_y
with Matrix.transform(a.x, a.y, theta=angle):
with Matrix.scale(sx, sy):
with Matrix.translation(-rx, -ry):
marker.render()
