def interpolatePoint(self, position):
"""
Interpolate a :class:`Point <geoscript.geom.Point>` on the :class:`LineString <geoscript.geom.LineString>` at the given position from 0 to 1.
*position* is number between 0 and 1
"""
indexedLine = LengthIndexedLine(self)
length = self.getLength()
coordinate = indexedLine.extractPoint(position * length)
return Point(coordinate.x, coordinate.y)
def interpolatePoint(self, position):
"""
Interpolate a :class:`Point <geoscript.geom.Point>` on the :class:`LineString <geoscript.geom.LineString>` at the given position from 0 to 1.
*position* is number between 0 and 1
"""
indexedLine = LengthIndexedLine(self)
length = self.getLength()
coordinate = indexedLine.extractPoint(position * length)
return Point(coordinate.x, coordinate.y)
def subLine(self, start, end):
"""
Extract a sub :class:`LineString <geoscript.geom.LineString>` using a start and end position. Both positions are numbers between 0 and 1. A new :class:`LineString <geoscript.geom.LineString>` is returned.
*start* The start position between 0 and 1
*end* The end position between 0 and 1
"""
indexedLine = LengthIndexedLine(self)
length = self.getLength()
return LineString(indexedLine.extractLine(start * length, end * length))
def placePoint(self, *coord):
"""
Place or snap the :class:`point <geoscript.geom.Point>` to the `LineString <geoscript.geom.LineString>`. This method returns a new placed `Point <geoscript.geom.Point>`.
*coord* A :class:`Point <geoscript.geom.Point>` or a variable list of x,y,z arguments.
"""
point = coord[0] if isinstance(coord[0], Point) else Point(*coord)
indexedLine = LengthIndexedLine(self)
position = indexedLine.indexOf(point.coordinate)
coord = indexedLine.extractPoint(position)
return Point(coord.x, coord.y)
def locatePoint(self, *coord):
"""
Locate the position of the :class:`point <geoscript.geom.Point>` along this :class:`LineString <geoscript.geom.LineString>`. The position returned is a number between 0 and 1.
*coord* A :class:`Point <geoscript.geom.Point>` or a variable list of x,y,z arguments.
"""
point = coord[0] if isinstance(coord[0], Point) else Point(*coord)
indexedLine = LengthIndexedLine(self)
position = indexedLine.indexOf(point.coordinate)
percentAlong = position / self.getLength()
return percentAlong
def placePoint(self, *coord):
"""
Place or snap the :class:`point <geoscript.geom.Point>` to the `LineString <geoscript.geom.LineString>`. This method returns a new placed `Point <geoscript.geom.Point>`.
*coord* A :class:`Point <geoscript.geom.Point>` or a variable list of x,y,z arguments.
"""
point = coord[0] if isinstance(coord[0], Point) else Point(*coord)
indexedLine = LengthIndexedLine(self)
position = indexedLine.indexOf(point.coordinate)
coord = indexedLine.extractPoint(position)
return Point(coord.x, coord.y)
def locatePoint(self, *coord):
"""
Locate the position of the :class:`point <geoscript.geom.Point>` along this :class:`LineString <geoscript.geom.LineString>`. The position returned is a number between 0 and 1.
*coord* A :class:`Point <geoscript.geom.Point>` or a variable list of x,y,z arguments.
"""
point = coord[0] if isinstance(coord[0], Point) else Point(*coord)
indexedLine = LengthIndexedLine(self)
position = indexedLine.indexOf(point.coordinate)
percentAlong = position / self.getLength()
return percentAlong
def subLine(self, start, end):
"""
Extract a sub :class:`LineString <geoscript.geom.LineString>` using a start and end position. Both positions are numbers between 0 and 1. A new :class:`LineString <geoscript.geom.LineString>` is returned.
*start* The start position between 0 and 1
*end* The end position between 0 and 1
"""
indexedLine = LengthIndexedLine(self)
length = self.getLength()
return LineString(indexedLine.extractLine(start * length,
end * length))
