def convert_line_to_points(V, delta):
"""Convert line vector data to point vector data
Input
V: Vector layer with line data
delta: Incremental step to find the points
Output
Vector layer with point data and the same attributes as V
"""
msg = 'Input data %s must be line vector data' % V
assert V.is_line_data, msg
geometry = V.get_geometry()
data = V.get_data()
N = len(V)
# Calculate centroids for each polygon
points = []
new_data = []
for i in range(N):
c = points_along_line(geometry[i], delta)
# We need to create a data entry for each point.
new_data.extend([data[i] for thing in c])
points.extend(c)
# Create new point vector layer with same attributes and return
V = Vector(data=new_data,
projection=V.get_projection(),
geometry=points,
name='%s_point_data' % V.get_name(),
keywords=V.get_keywords())
return V
def convert_line_to_points(V, delta):
"""Convert line vector data to point vector data
:param V: Vector layer with line data
:type V: Vector
:param delta: Incremental step to find the points
:type delta: float
:returns: Vector layer with point data and the same attributes as V
:rtype: Vector
"""
msg = 'Input data %s must be line vector data' % V
verify(V.is_line_data, msg)
geometry = V.get_geometry()
data = V.get_data()
N = len(V)
# Calculate centroids for each polygon
points = []
new_data = []
for i in range(N):
c = points_along_line(geometry[i], delta)
# We need to create a data entry for each point.
# FIXME (Ole): What on earth is this?
# pylint: disable=W0621
new_data.extend([data[i] for _ in c])
# pylint: enable=W0621
points.extend(c)
# Create new point vector layer with same attributes and return
V = Vector(data=new_data,
projection=V.get_projection(),
geometry=points,
name='%s_point_data' % V.get_name(),
keywords=V.get_keywords())
return V
def convert_line_to_points(V, delta):
"""Convert line vector data to point vector data
:param V: Vector layer with line data
:type V: Vector
:param delta: Incremental step to find the points
:type delta: float
:returns: Vector layer with point data and the same attributes as V
:rtype: Vector
"""
msg = 'Input data %s must be line vector data' % V
verify(V.is_line_data, msg)
geometry = V.get_geometry()
data = V.get_data()
N = len(V)
# Calculate centroids for each polygon
points = []
new_data = []
for i in range(N):
c = points_along_line(geometry[i], delta)
# We need to create a data entry for each point.
# FIXME (Ole): What on earth is this?
# pylint: disable=W0621
new_data.extend([data[i] for _ in c])
# pylint: enable=W0621
points.extend(c)
# Create new point vector layer with same attributes and return
V = Vector(data=new_data,
projection=V.get_projection(),
geometry=points,
name='%s_point_data' % V.get_name(),
keywords=V.get_keywords())
return V
