Changes between Version 3 and Version 4 of GeoDjangoDiscussion


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Timestamp:
07/05/2007 09:01:03 AM (8 years ago)
Author:
anonymous
Comment:

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  • GeoDjangoDiscussion

    v3 v4  
    33   * {{{Houses.objects.filter(point__intersects=school.point.buffer(Distance(5,km)) }}}
    44     * Distance is without SRS?  [http://exogen.case.edu/projects/geopy/ Geopy] API is neat, MIT
     5     * 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)
     6       * rcoup knows of implementation under bsd license.
    57 * Common models for discussion/communication
    68   * House (point)
     
    1214 * Spatial querying w/ unit tests
    1315 * More robust gdal datasource support: missing/null values, multipoly in poly, multiline in line, etc.
     16   * gdal.Field.value dies on int('').  Better to have (GIS) exception or return None?
     17 * C object lifetime management
     18   * leak testing? (Lots of handles and __delete__ ; affects gc, see: [http://docs.python.org/lib/module-gc.html#tex2html190 gc.garbage])
     19   * poly.exterior_ring.append(point); (poly.exterior_ring is poly.exterior_ring) -> True
     20   * weakref when c wrapper refers to anything outside gis types(?)
     21   * or does ctypes do something magical?
     22   * Why are transform and transform_to are separate?
     23
     24
    1425
    1526
     
    2334
    2435----------------
    25 === Distance API ===
    26 
    27  * Houses.objects.filter(point__intersects=school.point.buffer(Distance(5,km))
    2836
    2937{{{
    30 
    31 Field.__str__ in the face of null-ish data:
    32  float('') broken.
    3338
    3439Descriptor-based field instead of get_FIELD_geos; (scrap GeoMixin?  may still be needed to manage c ref lifetimes)
     
    4752How is SRS initially determined in LayerMapping?
    4853
    49 Why transform and transform_to are separate?
    50 
    5154GDal/GEOS geom mapping?
    5255
     
    5760LayerMapping use Model.create_many once it exists.
    5861
    59 leak testing?
    60  Lots of handles and __delete__
    6162
    6263why is GEOSGeometry doing ._cache_cs and self.coord_seq (creating a
    6364new CS unless specifically avoiding it) rather than caching internally
    6465and returning the same one?
    65 
    66 Seems pretty frequent:
    67 >>> poly.exterior_ring is poly.exterior_ring
    68 False
    69 
    7066
    7167SpatialRefSys.ellipsoid without GDAL
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