Geographic Information Systems Asked on November 28, 2020
I am creating a linestring from points using shapely, but I could not generate the linestring using the points on my local system. This code is running fine on Google Colab. Is there any package dependency which I don’t have installed on my system?
import shapely
from shapely import speedups
from shapely import geometry
from shapely.geometry import shape, Point, LineString, Polygon
a = LineString([(0, 0), (1, 1), (1,2), (2,2)])
a
Error massage
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-18-02826fee6746> in <module>
----> 1 a = LineString([(0, 0), (1, 1), (1,2), (2,2)])
2 a
c:python37libsite-packagesshapelygeometrylinestring.py in __init__(self, coordinates)
46 BaseGeometry.__init__(self)
47 if coordinates is not None:
---> 48 self._set_coords(coordinates)
49
50 @property
c:python37libsite-packagesshapelygeometrylinestring.py in _set_coords(self, coordinates)
95 def _set_coords(self, coordinates):
96 self.empty()
---> 97 ret = geos_linestring_from_py(coordinates)
98 if ret is not None:
99 self._geom, self._ndim = ret
c:python37libsite-packagesshapelyspeedups_speedups.pyx in shapely.speedups._speedups.geos_linestring_from_py()
ValueError: GEOSGeom_createLineString_r returned a NULL pointer
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