informeren / qgis-cartogram Goto Github PK

H,
I got an error while installation:
ImportError: PyQt4 classes cannot be imported in QGIS 3.x. Use PyQt5.QtCore or the version independent qgis.PyQt.QtCore import instead.
Traceback (most recent call last):
File "C:/OSGEO41/apps/qgis/./python\qgis\utils.py", line 337, in startPlugin
plugins[packageName] = package.classFactory(iface)
File "C:/Users/moni/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\cartogram_init_.py", line 7, in classFactory
from .cartogram import Cartogram
File "C:/OSGEO41/apps/qgis/./python\qgis\utils.py", line 674, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/Users/moni/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\cartogram\cartogram.py", line 1, in
from PyQt4.QtCore import (Qt, QCoreApplication, QSettings, QThread,
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 672, in _import
raise ImportError(msg)
ImportError: PyQt4 classes cannot be imported in QGIS 3.x.
Use PyQt5.QtCore or the version independent qgis.PyQt.QtCore import instead.

Python-Version: 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 08:06:12) [MSC v.1900 64 bit (AMD64)]
QGIS-Version: 3.2.3-Bonn Bonn, 9b176802e5

Best regards,
Swawa

Any idea how to go about changing the plugin so it applies the calculated rubber sheet from a shape onto raster, point and line layers?

I am using the QGIS Cartogram plugin, but unfortunately something is not working as it should.

First, the demo works just fine. But when I want to create a cartogram with my own layer. But as soon as I click „ok“, it says "Cartogram creation cancelled by user“.

Do you have a clue, what I'm doing wrong? What am I canceling?

I copied the qgis-cartogram-develop folder into .qgis2/plugins/ and get the following error upon starting up QGIS 2.8:

Couldn't load plugin qgis-cartogram-develop due to an error when calling
its classFactory() method

Full error message:

Traceback (most recent call last):
File "/Applications/QGIS_28/QGIS.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 219, in startPlugin
plugins[packageName] = package.classFactory(iface)
File "/Users/myUserName/.qgis2/python/plugins/qgis-cartogram-develop/init.py", line 7, in classFactory
from .cartogram import Cartogram
File "/Applications/QGIS_28/QGIS.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 478, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "/Users/myUserName/.qgis2/python/plugins/qgis-cartogram-develop/cartogram.py", line 10, in
from cartogram_dialog import CartogramDialog
File "/Applications/QGIS_28/QGIS.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 478, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "/Users/myUserName/.qgis2/python/plugins/qgis-cartogram-develop/cartogram_dialog.py", line 6, in
os.path.dirname(file), 'cartogram_dialog_base.ui'))
File "/Applications/QGIS_28/QGIS.app/Contents/MacOS/../Resources/python/PyQt4/uic/init.py", line 213, in loadUiType
exec(code_string.getvalue(), ui_globals)
File "", line 66, in
File "/Applications/QGIS_28/QGIS.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 478, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
ImportError: No module named qgsfieldcombobox

In Plugins Manager I can see the plugin, but it is highlighted red, with the following error:

This plugin is broken
invalid syntax

I get a ZeroDivisionError in the logs when I try to use this plugin with some features where the area column has a 0 in it. It would be great if the plugin could handle this more gracefully (eg by ignoring or removing those features?).

I have a dataset of the Canadian federal electoral districts in shapefile format. I ran the cartogram plugin with 5 iterations and the population field. When the output was created, I saved it to a new shapefile. At first, the boundaries looked like they had no changed at all. However, when I zoomed in to an urban area, it looked like this:

http://imgur.com/IUScdT6