Geographic Information Systems Questions, Problems & Solutions : TransWikia.com ~ Page 523

QGIS modelbuilder, having a choicebox/value map of strings as string input

I was wondering how you can get a choicebox/value map in the string input? Right now we have to type in value in but we would like to have it...

Asked on 11/18/2020

1 answer

Adding spreadsheet information to KML

I have a KML from Indy Neighborhoods ArcGIS. I have the results of a factor analysis based on neighborhood traits from savi.org. From this, I did a...

Asked on 11/18/2020 by Bryan

0 answer

Using mouse-over on raster surface to stream values to text file using ArcGIS Desktop?

This is a weird one. I have a user who wants to add a statistical surface to ArcMap and then mouse-over the raster surface and stream those values (z) to...

Asked on 11/18/2020 by GISI

1 answer

GDAL: sum of all bands in a raster

I'm familiar with using gdal_calc.py to sum individual raster bands. However, I am curious whether there is an easy way to programmatically sum all bands of a raster into a...

Asked on 11/18/2020 by qdread

0 answer

Combining imagery, masking and sampling in Descartes Labs Platform

I am trying to sample data from Descartes Lab imagery to train a random forest classifier in the Descartes Plaform for an agricultural region. I have already written a script...

Asked on 11/18/2020 by Madeline Lisaius

2 answer

Iteratively polygonize MultiLineString

I have an implementation of alpha-shape below. My goal is to compute the polygons for a list of alphas but do it as fast as possible. LineProfiler showed that almost...

Asked on 11/18/2020

0 answer

Getting blank image from Binary Thresholding function of ArcGIS Pro

Why do I end up with a blank image every time I run the Binary Thresholding function of ArcGIS Pro on this single band image (Landsat 8,...

Asked on 11/17/2020 by Chad Leftwich

0 answer

How to assess the visibility of a feature from anywhere on the landscape (DEM)

I'm wanting to assess the visibility of a feature of a given height from anywhere on the surrounding landscape. It seems like the viewshed tools wont work for this since...

Asked on 11/17/2020 by argosy

0 answer

Joining attributes by location for more than one located feature using R

When joining attributes by location with the over function in R from the sp package, only the values for one of the polygons that intersects is retained. Is there a...

Asked on 11/17/2020

2 answer

Pattern did not match any band error for Sentinel 2, 2015 year image in Google Earth Engine

I am trying to calculate MNDWI index for Sentinel 2 image of an area for 2015 year data in Google Earth Engine.var image2 = ee.ImageCollection('COPERNICUS/S2') ...

Asked on 11/17/2020 by Arushi

1 answer

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