'Map' object has no attribute 'resize'?

[Tim Boothby]

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Hi All,

 

I’m new to Mapnik and have been trying to get it set up with the ultimate aim of setting up tile server to serve customised OpenStreetmap tiles of the UK. Working through the tutorials on the website I’ve got the “Hello world” examples working. I’ve not imported the whole world into PostGIS, but have (I think!) successfully imported extracts for the UK.

 

However when I try to render tiles I get the following error after a few seconds –

 

[root@mapnik mapnik]# source set-mapnik-env

[root@mapnik mapnik]# ./customize-mapnik-map >$MAPNIK_MAP_FILE

[root@mapnik mapnik]# ./z0_generate_tiles.py

render_tiles( (-180.0, -90.0, 180.0, 90.0) /root/mapnik/osm.xml /root/mapnik/tiles/ 0 0 World )

Exception in thread Thread-1:

Traceback (most recent call last):

  File "/usr/lib/python2.5/threading.py", line 486, in __bootstrap_inner

    self.run()

  File "/usr/lib/python2.5/threading.py", line 446, in run

    self.__target(*self.__args, **self.__kwargs)

  File "./z0_generate_tiles.py", line 106, in loop

    self.render_tile(tile_uri, x, y, z)

  File "./z0_generate_tiles.py", line 82, in render_tile

    self.m.resize(render_size, render_size)

AttributeError: 'Map' object has no attribute 'resize'

 

My Googling of this error has been fruitless, so is anybody able to shed any light on what the problem here is? Any ideas would be very much appreciated.

 

Thanks in advance,

Tim

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[Dane Springmeyer]

On Sep 14, 2009, at 7:57 AM, Tim Boothby wrote:

AttributeError: 'Map' object has no attribute 'resize'

 

My Googling of this error has been fruitless, so is anybody able to shed any light on what the problem here is? Any ideas would be very much appreciated.

Upgrade to Mapnik 0.6.1. The 'resize' function was not added until the 0.6.0 release.

or change generate_tiles.py to be compatible still with Mapnik 0.5.x:

Index: generate_tiles.py

===================================================================

--- generate_tiles.py (revision 17801)

+++ generate_tiles.py (working copy)

@@ -79,7 +79,8 @@

         # Bounding box for the tile

         bbox = mapnik.Envelope(c0.x,c0.y, c1.x,c1.y)

         render_size = 256

-        self.m.resize(render_size, render_size)

+        self.m.width = render_size

+        self.m.height = render_size

         self.m.zoom_to_box(bbox)

         self.m.buffer_size = 128

Dane

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