def createTwoPointLine(doc, lineObj):
lineNode = doc.createElement("line")
points = lineObj.get_points()
assert (len(points) == 4)
lineNode.setAttributeNode(createAttr(doc, "x1", str(points[0])))
lineNode.setAttributeNode(createAttr(doc, "y1", str(points[1])))
arrowhead = lineObj.get_arrowhead()
if arrowhead == 1:
angle = rad_angle(points[2], points[3], points[0], points[1])
x, y = arrow_line_end(points[2], points[3], angle,
lineObj.get_linewidth())
lineNode.setAttributeNode(createAttr(doc, "x2", str(x)))
lineNode.setAttributeNode(createAttr(doc, "y2", str(y)))
else:
lineNode.setAttributeNode(createAttr(doc, "x2", str(points[2])))
lineNode.setAttributeNode(createAttr(doc, "y2", str(points[3])))
style = SVGLineStyle(lineObj) + SVGLineDashStyle(lineObj)
lineNode.setAttributeNode(createAttr(doc, "style", style))
if arrowhead == 1 or arrowhead == 3:
lineNode.setAttributeNode(
createAttr(doc, "marker-end", "url(#Arrowhead)"))
if arrowhead == 2 or arrowhead == 3:
lineNode.setAttributeNode(
createAttr(doc, "marker-start", "url(#Arrowtail)"))
return lineNode
def createPolyLine( doc, lineObj, state ):
polyLine = doc.createElement("polyline")
points = lineObj.get_points()
# Fixme: Duplication of createTwoPointLine
arrowhead = lineObj.get_arrowhead()
if arrowhead == 1:
angle = rad_angle( points[-2], points[-1], points[-4], points[-3] )
x, y = arrow_line_end( points[-2], points[-1], angle, lineObj.get_linewidth() )
points[-2] = x
points[-1] = y
ptStr = ",".join([str(pt) for pt in points])
polyLine.setAttributeNode(createAttr(doc, "points", ptStr))
style = SVGLineStyle( lineObj, state ) + SVGLineDashStyle( lineObj )
polyLine.setAttributeNode( createAttr( doc, "style", style + ";fill:none" ) )
if arrowhead == 1 or arrowhead == 3:
polyLine.setAttributeNode( createAttr( doc, "marker-end", "url(#Arrowhead)") )
if arrowhead == 2 or arrowhead == 3:
polyLine.setAttributeNode( createAttr( doc, "marker-start", "url(#Arrowtail)") )
return polyLine