Hello members!!
Steven, I already changed the settings in the IDE to avoid the trouble when
I type the code.
In the other hand I added the pass statement so the script keep working even
though it finds an error, but the scripts ignore the pass statement. Console
prints:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "mapnik_punto_sin_duda.py", line 44, in <module>
lyr.datasource = mapnik.Shapefile(base=ruta,file=archivo[0])
File "C:\mapnik-0.7.1\python\2.6\site-packages\mapnik\__init__.py", line
282,
in Shapefile
return CreateDatasource(keywords)
RuntimeError: wrong file code : -1997790976
2011/6/14 James Reynolds <eire1...@gmail.com>
>
>
> On Tue, Jun 14, 2011 at 2:59 PM, Susana Iraiis Delgado Rodriguez <
> susana.delgad...@utzmg.edu.mx> wrote:
>
>> Hello members!
>>
>> I'm doing a script that needs to loop to get some information, in order to
>> do that I'm using modules from OGR and Mapnik. These to get data from
>> shapefiles, but some of the files have 0 elements, I wrote a line to
>> validate it, but it hasn't worked, so I added a break to keep working. When
>> I run the scipt I got the next error:
>> Traceback (most recent call last):
>> File "<pyshell#0>", line 1, in <module>
>> import mapnik_punto_sin_duda
>> File "C:\Python26\mapnik_punto_sin_duda.py", line 23
>> break
>> ^
>> IndentationError: unexpected indent
>>
>> But I've read about this stamentet's use and I don't understand the reason
>> I'm failing, the complete script is:
>> import mapnik
>> import os,fnmatch
>> from mapnik import LineSymbolizer,PolygonSymbolizer,PointSymbolizer
>> from osgeo import ogr,gdal,osr
>>
>> #Registra todos los drivers de GDAL
>> file_list = []
>> #Crear variable para buscar dentro de carpetas en el sistema
>> folders = None
>> #Se asigna el directorio raiz donde se van buscar los archivos, se hace un
>> recorrido en la raiz
>> for root, folders, files in os.walk( "c:\\" ):
>> #Agregar a la lista los elementos que traiga os.path.join, los
>> archivos que terminen en extension .shp
>> for filename in fnmatch.filter(files, '*.shp'):
>> file_list.append(os.path.join(root, filename))
>> #Recorrer la lista que se creo
>> for row, filepath in enumerate(file_list, start=1):
>> #Dividir la ruta en dos: directorio y nombre de archivo
>> dir(LineSymbolizer().stroke)
>> shapeData = ogr.Open(filepath)
>> shp = 'Error al abrir el archivo' +filepath
>> if shapeData is None:
>> print shp
>> break
>> else:
>> layer = shapeData.GetLayer()
>> defn = layer.GetLayerDefn()
>> geo = defn.GetGeomType()
>> (ruta, filename) = os.path.split(filepath)
>> archivo = os.path.splitext(filename)
>> i = archivo[0]+'.png'
>>
>> m = mapnik.Map(800,500,"+proj=latlong +datum=WGS84")
>> m.background = mapnik.Color('#EBEBEB')
>> s = mapnik.Style()
>> r=mapnik.Rule()
>>
>> if geo == 3:
>> print "Trabajando mapa "+ruta+"\\"+filename+" con
>> geometria "+ str(geo)
>>
>> r.symbols.append(mapnik.PolygonSymbolizer(mapnik.Color('#EB784B')))
>>
>> r.symbols.append(mapnik.LineSymbolizer(mapnik.Color('rgb(170%,170%,170%)'),0.9))
>> s.rules.append(r)
>> m.append_style('My Style',s)
>> lyr = mapnik.Layer('world',"+proj=latlong
>> +datum=WGS84")
>> lyr.datasource =
>> mapnik.Shapefile(base=ruta,file=archivo[0])
>> lyr.styles.append('My Style')
>> m.layers.append(lyr)
>> m.zoom_to_box(lyr.envelope())
>> mapnik.render_to_file(m,i, 'png')
>> print "La imagen " +i+ " fue creada."
>> elif geo == 2:
>> print "Trabajando mapa "+ruta+"\\"+filename+" con
>> geometria "+ str(geo)
>>
>> r.symbols.append(mapnik.LineSymbolizer(mapnik.Color('#EB784B'),0.9))
>> s.rules.append(r)
>> m.append_style('My Style',s)
>> lyr = mapnik.Layer('world',"+proj=latlong
>> +datum=WGS84")
>> lyr.datasource =
>> mapnik.Shapefile(base=ruta,file=archivo[0])
>> lyr.styles.append('My Style')
>> m.layers.append(lyr)
>> m.zoom_to_box(lyr.envelope())
>> mapnik.render_to_file(m,i, 'png')
>> print "La imagen " +i+ " fue creada."
>> elif geo == 1:
>> print "Trabajando mapa "+ruta+"\\"+filename+" con
>> geometria "+ str(geo)
>> blue =
>> mapnik.PointSymbolizer('C:\Python26\icono.png','png',50,50)
>> blue.allow_overlap = True
>> s=mapnik.Style()
>> r=mapnik.Rule()
>> r.symbols.append(blue)
>> s.rules.append(r)
>> #s.rules.append(blue)
>> m.append_style('My Style',s)
>> lyr = mapnik.Layer('world',"+proj=latlong
>> +datum=WGS84")
>> lyr.datasource =
>> mapnik.Shapefile(base=ruta,file=archivo[0])
>> lyr.styles.append('My Style')
>> m.layers.append(lyr)
>> m.zoom_to_box(lyr.envelope())
>> mapnik.render_to_file(m,i, 'png')
>> print "La imagen " +i+ " fue creada."
>> else:
>> print "Algo fallo y no entro a ninguna de las
>> geometrias"
>> print "Listo"
>>
>>
>> _______________________________________________
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>>
>>
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> well i'm not 100% what's going on because it appears to line up when I copy
> it to my IDE, but you are mixing tabs or # of space indents, you will raise
> that error, as an example:
> a= None
> if a is None:
> print 'a'
> print True
>
> The print 'a' line is four spaces (my default) and the print True is five.
> When run it raises the following:
>
> print True
>> ^
>> IndentationError: unexpected indent
>
>
> On a side note, if what you want to do is keep working while you work on
> the rest of it, you should use the pass statement. At least that is what I
> do.
>
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