mapnik / pymapnik2 Goto Github PK

I followed instructions in minitage section, and had this error during the last step :

$ minimerge -av mapnik-egg
2012-03-22 09:25:00,557 DEBUG (Re)Initializing minitage logging system.
Minimerge executation failed:
        cannot deepcopy this pattern object

Any idea ?

Thanks !

If needed, the complete log is here : http://friendpaste.com/5x5nhKGRvvZ3XgLkst62kD

I can't load mapnik2 from pip.
I get the following error.

ERROR: Complete output from command python setup.py egg_info:
    ERROR: Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-snc_7_7f/mapnik2/setup.py", line 10
        exec open('src/mapnik/utils.py').read() in mapnik_utils
                ^
    SyntaxError: invalid syntax

Anyone with this problem?

mapnik.Image has a save() method which can be used to save an image to a given filename, for example, the following will save the image to a file called tmp.png in the png256 format:

im = mapnik.Image(255,267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save('tmp.png', 'png256')

When one wants to use the data from the image (variable im in the upper example), one has to open the just-saved file and read the data.

Is it possible to save the image in a given format to an in-memory buffer? I noticed that the mapnik.Image wrapper does have the tostring() method, but this returns a string encoded in some sort of a hex format. I'm sure this can be decoded, but it would be easier to directory save the image to a buffer.

I'm unfamiliar with the mapnik internals, but if wanted, I can investigate and probably provide a patch for pymapnik2 to support this.