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Geographic Information Systems : Recent Questions and Answers (Page 500)

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

Expressions to Find data using QGIS Modeler

Im new to the expressions within the model builder.I have built a model already using two points as a Station And Backsight, with a line between them.Also my...

Asked on 12/07/2020 by Scones

0 answer

Combine KML files with Python

Is there a simple way to combine KML files into one KML file with Python? Nothing complex, I just want to append them to each other. Why I...

Asked on 12/07/2020 by SarahKelley

2 answer

How to specify dependable layer names in QGIS Processing Modeller

I am creating a model in QGIS (3.10.3) Processing Modeller (Win 10[64]). The objective is to create Voronoi polygons from centroids that are clipped to a higher, polygon, geometry. This...

Asked on 12/06/2020 by Bruce Mitchell

0 answer

SAGA problem issue in QGIS

While running SAGA 7.30 version in QGIS 3.16, they show an error about that version is not supporting and checking about a new version for up-gradation that might solve the...

Asked on 12/06/2020 by avinash

2 answer

Running classification on image collection using Google Earth Engine?

I have ImageCollection. composed of satellite images which shows Zebras on grasslands. The location of each zebra is stored within a point shapefile, which I uploaded as a "table" into...

Asked on 12/06/2020 by user145039

1 answer

In R, abstract data from SpatialPolygonsDataFrame but got NA

I tried to extract data from a SpatialPolygonsDataFrame, but got all NA. slot(nc,"data")[c("Northampton","Clay","Macon","Graham","Yancey","Mitchell","Avery"),]The data show as: SP_ID CNTY_ID east north L_id M_id names AREA...

Asked on 12/06/2020

1 answer

Creating file geodatabases in script tool after specifying path and names as GetParameterAsText

I am trying to create a script tool in ArcGIS Pro that uses 2 clipping feature classes to clip multiple other feature classes and save them to two new geodatabases...

Asked on 12/06/2020 by DanH

1 answer

Ordering a road network based on "Strahler Stream Order"

I want to classify a road network similar to Strahler's Order (keep track of how many smaller roads flow into a bigger road). I'm working with mountain roads, so most...

Asked on 12/06/2020 by Olak

2 answer

Getting CRS to export shapely polygon to shapefile

I am trying to export a shapely polygon to a shapefile. I have tried this, but the CRS is missing, when I try to import it in to QGIS....

Asked on 12/06/2020 by william3031

1 answer

Setting projections in QGIS

I'm currently working on a project in QGIS 3.10 . So far, I had somewhat ignored matters pertaining to projections, because things seemed to be going fine. However, I am...

Asked on 12/06/2020 by Max Muller

1 answer

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