def parseLineNode(node):
s = getSettings(node)
x1 = float(node.attributes['x1'].value)
y1 = float(node.attributes['y1'].value)
x2 = float(node.attributes['x2'].value)
y2 = float(node.attributes['y2'].value)
arrowhead = node.hasAttribute("marker-end") and node.attributes[
"marker-end"].value == "url(#Arrowhead)"
arrowtail = node.hasAttribute("marker-start") and node.attributes[
"marker-start"].value == "url(#Arrowtail)"
if arrowhead and arrowtail:
s.arrow = 3
# Fixme: adjustment!
elif arrowtail:
s.arrow = 2
elif arrowhead:
s.arrow = 1
# Adjust the arrow line end ( Fixme: More work required )
lineWidth = s.linewidth
angle = rad_angle(x2, y2, x1, y1)
x2, y2 = actual_line_end(x2, y2, angle, lineWidth)
else:
s.arrow = 0
return ["line", (x1, y1, x2, y2), s, parseNodeTransform(node)]
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 parse_line_node(node, state):
settings = get_settings(node, state)
x1 = float(node.attributes['x1'].value)
y1 = float(node.attributes['y1'].value)
x2 = float(node.attributes['x2'].value)
y2 = float(node.attributes['y2'].value)
parse_marker_attribute(node, settings)
if settings.arrow in ('front', 'both'):
# Adjust the arrow line end ( Fixme: More work required )
line_width = settings.linewidth
angle = rad_angle(x2, y2, x1, y1)
x2, y2 = actual_line_end(x2, y2, angle, line_width)
return ["line", (x1, y1, x2, y2), settings, parse_node_transform(node)]
def parse_polyline_node(node, state):
settings = get_settings(node, state)
parse_marker_attribute(node, settings)
points = node.attributes['points'].value.strip()
points = points.replace(" ", ",") # Fixme
vals = [float(coord) for coord in points.split(',') if len(coord) > 0]
if settings.arrow in ('front', 'both'):
angle = rad_angle(vals[-2], vals[-1], vals[-4], vals[-3])
vals[-2], vals[-1] = actual_line_end(vals[-2], vals[-1], angle,
settings.linewidth)
return ["polyline", vals, settings, parse_node_transform(node)]
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
def parsePolyLineNode(node):
s = getSettings(node)
arrowhead = node.hasAttribute("marker-end") and node.attributes[
"marker-end"].value == "url(#Arrowhead)"
arrowtail = node.hasAttribute("marker-start") and node.attributes[
"marker-start"].value == "url(#Arrowtail)"
if arrowhead and arrowtail:
s.arrow = 3
elif arrowtail:
s.arrow = 2
elif arrowhead:
s.arrow = 1
else:
s.arrow = 0
points = node.attributes['points'].value.strip()
points = points.replace(" ", ",") # Fixme
vals = [float(coord) for coord in points.split(',') if len(coord) > 0]
if arrowhead:
angle = rad_angle(vals[-2], vals[-1], vals[-4], vals[-3])
vals[-2], vals[-1] = actual_line_end(vals[-2], vals[-1], angle,
s.linewidth)
return ["polyline", vals, s, parseNodeTransform(node)]