avoid shapely deprecation warnings

src/c3nav/mapdata/models/geometry/base.py

@@ -115,11 +115,11 @@ class GeometryMixin(SerializableMixin):
             return True
         if self.geometry is self.orig_geometry:
             return False
-        if not self.geometry.almost_equals(self.orig_geometry, 1):
+        if not self.geometry.equals_exact(self.orig_geometry, 0.05):
             return True
         field = self._meta.get_field('geometry')
         rounded = field.to_python(field.get_prep_value(self.geometry))
-        if not rounded.almost_equals(self.orig_geometry, 2):
+        if not rounded.equals_exact(self.orig_geometry, 0.005):
             return True
         return False
 

src/c3nav/mapdata/models/geometry/level.py

@@ -189,8 +189,8 @@ class AltitudeArea(LevelGeometryMixin, models.Model):
         if self.altitude2 is None:
             return np.full((points.shape[0], ), fill_value=float(self.altitude))
 
-        slope = np.array(self.point2) - np.array(self.point1)
-        distances = (np.sum(((points - np.array(self.point1)) * slope), axis=1) / (slope ** 2).sum()).clip(0, 1)
+        slope = np.array(self.point2.coords) - np.array(self.point1.coords)
+        distances = (np.sum(((points - np.array(self.point1.coords)) * slope), axis=1) / (slope ** 2).sum()).clip(0, 1)
 
         if self.altitude2 < self.altitude:
             min_altitude = float(self.altitude2)
@@ -604,7 +604,7 @@ class AltitudeArea(LevelGeometryMixin, models.Model):
                 num_deleted += 1
                 continue
 
-            if not field.get_final_value(new_area.geometry).almost_equals(candidate.geometry):
+            if not field.get_final_value(new_area.geometry).equals_exact(candidate.geometry, 0.00001):
                 num_modified += 1
 
             candidate.geometry = new_area.geometry

src/c3nav/mapdata/render/engines/svg.py

@@ -149,12 +149,12 @@ class SVGEngine(RenderEngine):
         if isinstance(geom, Polygon):
             return ('<path d="' +
                     ' '.join((('M %.1f %.1f L'+(' %.1f %.1f'*(len(ring.coords)-1))+' z') %
-                              tuple((np.array(ring)*self.np_scale+self.np_offset).flatten()))
+                              tuple((np.array(ring.coords)*self.np_scale+self.np_offset).flatten()))
                              for ring in chain((geom.exterior,), geom.interiors))
                     + '"/>').replace('.0 ', ' ')
         if isinstance(geom, LineString):
             return (('<path d="M %.1f %.1f L'+(' %.1f %.1f'*(len(geom.coords)-1))+'"/>') %
-                    tuple((np.array(geom)*self.np_scale+self.np_offset).flatten())).replace('.0 ', ' ')
+                    tuple((np.array(geom.coords)*self.np_scale+self.np_offset).flatten())).replace('.0 ', ' ')
         try:
             geoms = geom.geoms
         except AttributeError:

src/c3nav/mapdata/utils/geometry.py

@@ -1,6 +1,5 @@
 import math
 from collections import deque, namedtuple
-from contextlib import suppress
 from itertools import chain
 from typing import List, Sequence, Union
 
@@ -199,11 +198,7 @@ def cut_polygon_with_line(polygon: Union[Polygon, MultiPolygon, Sequence[Polygon
     polygons: List[List[LinearRing]] = []
     # noinspection PyTypeChecker
     for polygon in orig_polygon:
-        rings = getattr(polygon, 'c3nav_cache', None)
-        if not rings:
-            rings = [polygon.exterior, *polygon.interiors]
-            polygon.c3nav_cache = rings
-        polygons.append(rings)
+        polygons.append([polygon.exterior, *polygon.interiors])
 
     # find intersection points between the line and polygon rings
     points = deque()
@@ -339,7 +334,6 @@ def cut_polygon_with_line(polygon: Union[Polygon, MultiPolygon, Sequence[Polygon
     for polygon in polygons:
         polygon = [ring for ring in polygon if ring is not None]
         new_polygon = Polygon(polygon[0], tuple(polygon[1:]))
-        new_polygon.c3nav_cache = polygon
         result.append(new_polygon)
     return list(result)
 
@@ -349,9 +343,6 @@ def clean_cut_polygon(polygon: Polygon) -> Polygon:
     interiors.extend(cut_ring(polygon.exterior))
     exteriors = [(i, ring) for (i, ring) in enumerate(interiors) if ring.is_ccw]
 
-    with suppress(AttributeError):
-        delattr(polygon, 'c3nav_cache')
-
     if len(exteriors) != 1:
         raise ValueError('Invalid cut polygon!')
     exterior = interiors[exteriors[0][0]]

src/c3nav/mapdata/utils/mpl.py

@@ -109,5 +109,5 @@ def shapely_to_mpl(geometry):
 
 
 def linearring_to_mpl_path(linearring):
-    return Path(np.array(linearring),
+    return Path(np.array(linearring.coords),
                 (Path.MOVETO, *([Path.LINETO] * (len(linearring.coords)-2)), Path.CLOSEPOLY), readonly=True)