def insert_node_at(path, at):
index = int(at)
t = at - index
newpath = CreatePath()
copy_path(newpath, path, 0, index)
type, control, node, cont = path.Segment(index + 1)
if type == Line:
newpath.AppendLine((1 - t) * path.Node(index) + t * node)
newpath.select_segment(-1)
newpath.AppendLine(node)
else:
if newpath.Continuity(-1) == ContSymmetrical:
newpath.SetContinuity(-1, ContSmooth)
p1, p2 = control
p1, p2, q, p3, p4 = subdivide(newpath.Node(-1), p1, p2, node, t)
newpath.AppendBezier(p1, p2, q, ContSmooth)
newpath.select_segment(-1)
if cont == ContSymmetrical:
cont = ContSmooth
newpath.AppendBezier(p3, p4, node, cont)
copy_path(newpath, path, index + 2)
if path.closed:
newpath.ClosePath()
newpath.SetContinuity(-1, path.Continuity(-1))
return newpath
def split_path_at(path, at):
index = int(at)
t = at - index
if path.closed:
path1 = path2 = CreatePath()
result = [path1]
else:
path1 = CreatePath()
path2 = CreatePath()
result = [path1, path2]
copy_path(path1, path, 0, 0, copy_selection = 0)
type, control, node, cont = path.Segment(index + 1)
if type == Line:
q = (1 - t) * path.Node(index) + t * node
path2.AppendLine(q)
path2.AppendLine(node)
path2.select_segment(0)
function = path1.AppendLine
args = (q,)
else:
p1, p2 = control
p1, p2, q, p3, p4 = subdivide(path.Node(index), p1, p2, node, t)
path2.AppendLine(q)
path2.AppendBezier(p3, p4, node, cont)
path2.select_segment(0)
function = path1.AppendBezier
args = (p1, p2, q, ContSymmetrical)
copy_path(path2, path, index + 2, copy_selection = 0)
copy_path(path1, path, 1, index, copy_selection = 0)
apply(function, args)
return result
def insert_segments(path):
newpath = CreatePath()
newpath.AppendLine(path.Node(0), path.Continuity(0))
newpath.select_segment(0, path.SegmentSelected(0))
for i in range(1, path.len):
type, p12, p, cont = path.Segment(i)
if path.SegmentSelected(i) and path.SegmentSelected(i - 1):
if type == Line:
node = 0.5 * path.Node(i - 1) + 0.5 * path.Node(i)
newpath.AppendLine(node)
newpath.select_segment(-1)
newpath.AppendLine(path.Node(i))
newpath.select_segment(-1)
else:
if newpath.Continuity(-1) == ContSymmetrical:
newpath.SetContinuity(-1, ContSmooth)
p1, p2 = p12
p1, p2, node, p3, p4 = subdivide(path.Node(i - 1), p1, p2, p)
newpath.AppendBezier(p1, p2, node, ContSymmetrical)
newpath.select_segment(-1)
if cont == ContSymmetrical:
cont = ContSmooth
newpath.AppendBezier(p3, p4, p, cont)
newpath.select_segment(-1)
else:
newpath.AppendSegment(type, p12, p, cont)
newpath.select_segment(-1, path.SegmentSelected(i))
if path.closed:
newpath.ClosePath()
newpath.SetContinuity(-1, path.Continuity(-1))
return newpath
