[gdal-dev] How to set BoundingBox within a shapefile using OGR Pythons bindings

[Daniele Romagnoli]

Hi list,
I'm creating a shapefile using the OGR python bindings. (from  the 1.6.1
installer)
I have some issues in creating the boundingBox for it.
This is a snippet of the code I'm using:
-----------------------------------------------------
from osgeo import ogr
from osgeo import osr
....
....
northings_llc = dd['northings_llc']
northings_urc = dd['northings_urc']
eastings_llc = dd['eastings_llc']
eastings_urc = dd['eastings_urc']
t_srs = osr.SpatialReference()
t_srs.SetFromUserInput('EPSG:32632')
drv = ogr.GetDriverByName('ESRI Shapefile')
ds = drv.CreateDataSource(fileout)
x0, y0, x1, y1 = str(eastings_llc[0][0]), str(northings_llc[0][0]),
str(eastings_urc[0][0]), str(northings_urc[0][0])

layer = ds.CreateLayer(ds.GetName(), geom_type = ogr.wkbPolygon, srs =
t_srs)
geom = ogr.Geometry(type = layer.GetLayerDefn().GetGeomType())
geom.AssignSpatialReference(t_srs)
wkt = 'POLYGON('+x0+','+y0+','+ x0+','+ y1+','+ x1+',' +y1+','+ x1+','
+y0+','+ x0+',' +y0+')'
print(wkt)
geom.importFromWkt(wkt)
...
...

When running, I get this output:
POLYGON(602759.984846,4739727.96408,602759.984846,4739720.3473,602760.45247,4739720.3473,602760.45247,4739727.96408,602759.984846,4739727.96408)
Traceback (most recent call last):
  File "prova.py", line 42, in <module>
    geom.importFromWkt(wkt)
  File "c:\python26\lib\site-packages\osgeo\ogr.py", line 2672, in <lambda>
    __getattr__ = lambda self, name: _swig_getattr(self, Geometry, name)
  File "c:\python26\lib\site-packages\osgeo\ogr.py", line 34, in
_swig_getattr
    raise AttributeError,name
AttributeError: importFromWkt

Indeed, looking at the ogr.py there is no "importFromWkt" in the Geometry
definition.
How can I set the bounding box within the geometry?
Any help would be greatly appreciated.

Best Regards,
Daniele

-- 
-------------------------------------------------------
Eng. Daniele Romagnoli
Software Engineer

GeoSolutions S.A.S.
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax:     +39 0584983027
mob:   +39 328 0559267


http://www.geo-solutions.it

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