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Geographic Information Systems : Recent Questions and Answers (Page 48)

Find answers to your questions about Geographic Information Systems or help others by answering their Geographic Information Systems questions.

Getting band names using ArcPy in ArcGIS Desktop 10.x

How do I get a list of band names using ArcPy in ArcGIS Desktop 10.x? In ArcGIS Pro, I can use Raster('myRaster').bandNames, but this is not an option in ArcGIS...

Asked on 09/29/2021

1 answer

Initialize modify interaction so it can only delete vertices, OpenLayers

I want to initialize modify interaction in the way that the user can only delete vertices. I want to disable the other two functionalities which interaction offers like moving and...

Asked on 09/29/2021

1 answer

ST_AsPNG query has wrong position on Mapbox

I am trying to import GeoTIFF files into a PostgreSQL database using raster2pgsql. I use the following query to import the data into my database:raster2pgsql -s 4326 -c -P...

Asked on 09/29/2021 by Kawada

0 answer

Failed to connect to database. Not a valid file name (ArcMap, personal geodatabase)

Windows 10, ArcMap 10.8, local parent directory, personal geodatabase I tried solutions suggested for this problem but they don't work. I have several similar ArcMap projects for different regions. In...

Asked on 09/29/2021 by Victoria Bessonova

0 answer

Layer selectByExpression is Not select any feature even Expression is right why?

I am trying select the features by expression if i pass query as string its working but if pass variable is not return any result why. WORKING CODEInputFeatureLayer.selectByExpression(""S_CODE" =...

Asked on 09/29/2021

1 answer

Attribute Assistant - Incorrect Increment Value

I'm using Attribute Assistant to generate an ID using the GENERATE_ID method. Instead of incrementing by 1, the value increments by 2 every time. The log file...

Asked on 09/29/2021 by Darren Cope

1 answer

Export central coordinates of current map in print layout

I am trying to export the centrum coordinates of the current map in the print layout, and show the coordinates as a text element. I have succeeded to print...

Asked on 09/29/2021 by Palemon

1 answer

Shortest path from one to many points to return path id's using QGIS

I'm trying to find the shortest path between many points (pink) and one point (light green) using a network of lines (dark green). For each path found I need the...

Asked on 09/29/2021 by Arthur Goodhart

0 answer

How to digitize building footprints with orthogonal edges?

Using QGIS, I am trying to digitize an old raster map, and because I ultimately want to load these 2d layers into sketch-up to turn into 3D models, I need...

Asked on 09/28/2021 by shawty

3 answer

FeatureCollection (Error) Image.reduceRegions: Group input must come after weighted inputs

I was trying to find the area of each block by category in the band. There is one band and it has 18 categories. The feature collection is a collection...

Asked on 09/28/2021 by Existential_Economist

1 answer

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