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Geographic Information Systems : Recent Questions and Answers (Page 80)

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

Selecting basins with discharge direction to East using ArcMap 10.3

I have watersheds shapefile created, some discharge their water to the east, others to the west. Is there is a way to automatically select the ones that discharges to the...

Asked on 08/18/2021 by Abdullah Nagy

0 answer

Qgis Work-around geometry-loss-mix-up-of-a-spatialite-view-joining-two-tables

Hi i use SpatiaLite views in QGIS (Version 3.16) with joined layers and it works well but it has a little flaw. It seems the same problem appears as mentioned...

Asked on 08/17/2021 by Guest No. 1534

0 answer

Print layout of multiple maps revert to one identical map after save as image/zoom

I have a map with 8 graduated classes. I have created a print layout with 8 separate maps - one for each of the classes. I used "lock layers" to...

Asked on 08/17/2021 by Susan Miller

0 answer

Extract population count from GeoTIFF based on mask layer

I downloaded Population Count data from Gridded Population of the World (GPW), v4 as a *.GeoTIFF file. In a next step, I would like to extract the...

Asked on 08/17/2021

2 answer

Mappa.js Clear Canvas with Leaflet marker

I am using Mappa.js with Leaflet to generate a web map. However the function clear(); has no effect on a Leaflet marker, but only...

Asked on 08/17/2021

0 answer

Build tile server manually with PostgreSQL db on a different server

I have set up my map tile server and have used the following components:Mod_tileosm2pgsqlpostgresMapnikopen street map cartoIn my configuration, postgres is on a different server. when I access the /osm_tiles/0/0/0.png,...

Asked on 08/17/2021 by vaishnavi mukundhan

1 answer

Viewing TPW HDF4 (HDF-EOS4) Files in ArcGIS

I am trying to view TPW (Total Precipitable Water) data from HDF4 (HDF-EOS4) files in ArcMap. The datasets changed from HDF4 to NetCDF in mid-2019, I have no issues viewing...

Asked on 08/17/2021

0 answer

QGIS 3.10 - Changing display name of layer

Is there a way to change display name of layer without changing layer name ? The field 'displayed as' is disabled and based on the field 'layer name'. ...

Asked on 08/17/2021

1 answer

Maximum GPS-based location Sampling rate of smartphones

I am working on Android application that needs to take GPS locations at the rate of 10Hz to 1Hz. I tried it by setting 100ms for time interval for requestLocationUpdates(_,...

Asked on 08/17/2021 by Jan Jan

1 answer

Building terrian data in ArcGIS Server for Cesium

I want to use ArcGIS terrain Data in Cesium. I don't know how to build terrain data in ArcGIS Server 10.3.1 according to specifications of Cesium. Is there a tutorial...

Asked on 08/17/2021

0 answer

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