Questions tagged [index]

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In QGIS can I make an index grid vector dataset for a folder of orthophot extents?

I have a folder of orthophotos and I need to make a lookup grid for all the photos showing the extent of coverage for each photo in the folder. I want the attribute in the grid to have the filename (...
forestGIS's user avatar
  • 161
2 votes
1 answer

ArcPy Alter Field name on *

I'm used to using open source, not ArcPy functionality. I am using the arcpy.AlterField_management() function to change field names from upper to lower case. I first ran into what looks like a common ...
Binx's user avatar
  • 1,292
1 vote
0 answers

Merge polygons that overlap into a multipart polygon while maintaining the original geometries/look

Overall, I want to display an index map that shows nautical charts and their corresponding inset charts. The majority of the time these insets lay directly on top of the "parent" chart in a ...
Sjolster31's user avatar
2 votes
1 answer

Missing indices when extracting vertices and edges from polygon

Given a polygon with holes from shapely.geometry import Polygon import geopandas as gpd # Polygon exterior: p = [[20,767],[54,744],[107,707], [190,654],[265,609],[363,548], [462,484],[514,447],[603,...
arkriger's user avatar
  • 315
1 vote
0 answers

Loop to download worldmet data in R

I'm rather new to R. I am trying to create a loop to download worldmet data for each uk weather station for a particular year. I have found a previous link but still unable to get the required output -...
Kathryn Adams's user avatar
0 votes
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How to add popup in a folium map matching a loop format?

I have a folium map code (python) working in a loop mode, the following code works well except that the popup insert does not work. (database columns : "Latitude", "Longitude", &...
JEG's user avatar
  • 41
5 votes
2 answers

How to create non spatial index for geopackage data?

I know QGIS/GDAL can create a spatial index for data in a geopackage. But what about non spatial data, how do I create an index for a non spatial data column using QGIS/GDAL for a geopackage data set?
Mathiaskopo's user avatar
4 votes
1 answer

Getting index of selected rows in QGIS Field Calculator

Suppose I make a selection on some layer and I want to apply some function on only those records. I know there's a box you can check in the Field Calculator for this, but is there a function/...
hmnoidk's user avatar
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