Changes between Version 3 and Version 4 of GeoDjangoDiscussion

Timestamp:

Jul 5, 2007, 9:01:03 AM (17 years ago)

Author:

anonymous

Comment:

--

GeoDjangoDiscussion

@@ -3 +3 @@
    * {{{Houses.objects.filter(point__intersects=school.point.buffer(Distance(5,km)) }}}
      * Distance is without SRS?  [http://exogen.case.edu/projects/geopy/ Geopy] API is neat, MIT
+     * General discussion of UOM toolkit, such that Distance(km=1)+Distance(mi=1) => Distance(km=2.61) and Distance(km=1)*Distance(mi=1)=> Area(km=1.61)
+       * rcoup knows of implementation under bsd license.
  * Common models for discussion/communication
    * House (point)
@@ -12 +14 @@
  * Spatial querying w/ unit tests
  * More robust gdal datasource support: missing/null values, multipoly in poly, multiline in line, etc.
+   * gdal.Field.value dies on int('').  Better to have (GIS) exception or return None?
+ * C object lifetime management
+   * leak testing? (Lots of handles and __delete__ ; affects gc, see: [http://docs.python.org/lib/module-gc.html#tex2html190 gc.garbage])
+   * poly.exterior_ring.append(point); (poly.exterior_ring is poly.exterior_ring) -> True
+   * weakref when c wrapper refers to anything outside gis types(?)
+   * or does ctypes do something magical?
+   * Why are transform and transform_to are separate?
+
+
 
 
@@ -23 +34 @@
 
 ----------------
-=== Distance API ===
-
- * Houses.objects.filter(point__intersects=school.point.buffer(Distance(5,km))
 
 {{{
-
-Field.__str__ in the face of null-ish data:
- float('') broken.
 
 Descriptor-based field instead of get_FIELD_geos; (scrap GeoMixin?  may still be needed to manage c ref lifetimes)
@@ -47 +52 @@
 How is SRS initially determined in LayerMapping?
 
-Why transform and transform_to are separate?
-
 GDal/GEOS geom mapping?
 
@@ -57 +60 @@
 LayerMapping use Model.create_many once it exists.
 
-leak testing?
- Lots of handles and __delete__
 
 why is GEOSGeometry doing ._cache_cs and self.coord_seq (creating a
 new CS unless specifically avoiding it) rather than caching internally
 and returning the same one?
-
-Seems pretty frequent:
->>> poly.exterior_ring is poly.exterior_ring
-False
-
 
 SpatialRefSys.ellipsoid without GDAL