Unanswered Questions
2,749 questions with no upvoted or accepted answers
11
votes
0
answers
618
views
MapScript with Python 3
I am trying to build raster summarizing features into a GeoDjango webmap,
and would like to use the django-raster and django-wms packages to do so. I believe that I have them set up correctly, but am ...
- 13.6k
10
votes
0
answers
2k
views
Nearest neighbour joins for two geodataframes using KDtree from scipy/sklearn
I have a number of large geodataframes and I want to automate the implementation of a Nearest Neighbour function using a KDtree for more efficient processing. The process I want to achieve here is to ...
- 1,408
9
votes
2
answers
3k
views
Adding support to Esri's FileGDB driver when fiona/gdal/osgeo were installed through Anaconda
Is there a way to tweak the fiona/gdal/osgeo packages installed through Anaconda so that they can be used to read/write GDB files using the ESRI FileGDB driver? The main thing I'm actually trying to ...
CommunityBot
- 1
8
votes
0
answers
2k
views
Projection: Mollweide to Equirectangular
I am trying to reproduce in Python a coordinate transformation of a map from Mollweide coordinates (see Figure A) to Equirectangular coordinates (see Figure B) that I saw done in Mathematica in the ...
- 1
8
votes
0
answers
2k
views
Controlling the visibility of a FeatureGroup in Folium with an HTML checkbox
I'm working on a project in Django where I want to show layers on a map by checking or unchecking boxes which I created using bootstrap. I am aware it is possible to use LayerControl to get these ...
- 1
8
votes
0
answers
570
views
QGIS contextual menu overriding
I would like to override the default contextual menu in QGIS 3 in the ToC.
I've created a class that inherit from QgsLayerTreeViewMenuProvider.
from qgis.gui import QgsLayerTreeViewMenuProvider
from ...
- 78.4k
8
votes
0
answers
1k
views
Georeference and warp a drone image based on sensor orientation and location
I have been flying some drone surveys over the ocean and need to properly project and georeference my images. I have all the information I think I need: lat, lon, altitude, yaw, pitch, and roll along ...
- 419
8
votes
0
answers
474
views
OGR failing to unpack polygons and respective holes from shapefile
I'm trying to unpack shapefiles in Python (v3.7.4) using the GDAL-OGR library (v2.3.3). Each shapefile has only one feature containing multiple polygons with holes. They cannot be produced differently....
- 1
8
votes
0
answers
2k
views
GDAL RasterIO performance in C++ vs ReadAsArray in python/numpy
I'm currently writing optimisations for a raster viewer program which uses gdal as it's base. It's currently written purely in python, and has some major speed issues which cause problems when we are ...
- 65.5k
8
votes
0
answers
655
views
Setting up PyCharm CE 4 to work with PyQGIS library in Mac OS
I am trying to set up PyCharm to work with PyQGIS library. I am using PyCharm CE v4 and QGIS version 2.8 I have tried to implement the instructions of several posts like:
http://osgeo-org.1560.x6....
- 18.7k
7
votes
0
answers
435
views
How to transform ERA5 vertical datum to WGS84
I am trying to plot a netcdf file from ECMWF ERA5 in a folium map but I am having troubles with the projections in the file.
ECMWF documentation states:
ECMWF data is referenced in the horizontal with ...
- 307
7
votes
1
answer
2k
views
Convert the geometry column of a GeoDataFrame with mixed geometry types to a unique multi-type
I have a GeoDataFrame where I have a mix of geometry types in its geometry column, some are multi-geometry types, some are single geometry types, some are empty geometry types, and others are None (...
CommunityBot
- 1
7
votes
0
answers
816
views
Save GeoPandas spatial index to disk
I'd like to save the R-tree spatial index generated by GeoPandas to disk.
GeoPandas automatically generates an index for each shape (points in this case) in the dataframe.
I'm attempting to create a ...
- 20.5k
7
votes
0
answers
535
views
Programmatically Enable/disable input parameters in a QGIS Processing plugin
Is there a way to enable/disable a parameter by a checkbox in the processing interface? In my screenshot below, I would like to disable the Output Wall Aspect Raster when the Calculate wall aspect ...
- 75
7
votes
0
answers
1k
views
QGIS 3: Set custom project variables with input dialog
I am using QGIS 3.10.0 and Windows 10. I have a project where I want the user to define custom project variables. I want to make this user friendly, I don't want the user to need to open the project ...
- 143