Geographic Information Systems Questions, Problems & Solutions : TransWikia.com ~ Page 532

How to get the height according to EGM96 for a point?

For a program I have to calculate the height according to EGM96. I found http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm96/egm96.html - this site delivers files with parameters and a fortran-program. But I feel...

Asked on 10/24/2020 by Mnementh

4 answer

Measure part length of polygon using QGIS

I have a polygon file of area boundaries and I want to measure part of the polygon lines in each area which next to the sea. Is there a...

Asked on 10/24/2020 by Tessa Bell

1 answer

Converting raster to line vector layer

I would like to convert all values having the value 1 in a binary raster to a line vector layer. The following image shows the binary raster (1=white and 0=black):...

Asked on 10/23/2020 by Sophie Crommelinck

0 answer

GeoServer Raster WMS Layer update/filter like CQL, ECQL

I have added the raster layer from GeoServer as a WMS source. There is an HTML filter to apply changes with GeoServer Raster WMS Layer, which is not working with...

Asked on 10/23/2020 by Muhammad Imran Siddique

1 answer

Determining percent of polygons within other polygons using ArcGIS Pro?

I am using ArcGIS Pro. I have two layers 'Habitat Quality' and 'Connectivity'. I am trying to find out the percent of habitat quality polygons within the connectivity polygons....

Asked on 10/23/2020 by Lupe Franco

1 answer

Automatically add date/time and sequential number to new GPS points in the field

We are using a tablet running QGIS 3.4.9, connected to a bluetooth GPS device, to record data in the field. We create GPS points using the "Add Point" button in...

Asked on 10/22/2020 by KTWillow

0 answer

Leaflet Icon with GeoJSON

I'm new to Leaflet and I'm trying bring in data from a GeoJSON and change from the default icon. So far I have this [I shortened the GeoJSON (less entries)...

Asked on 10/22/2020

1 answer

PYQGIS 3 Using the ouptut from GRASS v.distance algorithm

I have a script which is trying to run v.distance on two existing shape files,buildings.shp which containing some polygons and singleasn.shp which contains a single point. This will be...

Asked on 10/22/2020 by K. Osborne

2 answer

Using NNJoin-Plugin through Python console

I want to write a Python script which I can execute from within QGIS 2.18 (from the Python console). The Python script should calculate the nearest line (out of a...

Asked on 10/21/2020

1 answer

Trouble passing compatibility test on Windows. Video card meets requirements but still fails?

I am having a rough time getting my computer to pass the compatibility test, even though it seems to meet all the requirements. I have 512 MB of dedicated video...

Asked on 10/21/2020 by Trouble in Parallels

0 answer

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