GIS传道者 · 精选文章

共 1676 篇精选

文章

Raster layers in Equal Earth projections for Americas (EPSG:8858) and Asia-Pacific (EPSG:8859) in QGIS are truncated

Question WGS 84 / Equal Earth Greenwich (EPSG:8857) works well in QGIS, but in case of WGS 84 / Equal Earth Americas (EPSG:8858) and WGS 84 / Equal Earth Asia-Pacific (EPSG:8859),

qgis · natural-earth · equal-earth-projection

小程序阅读全文

文章

Bash completion for GDAL not working

Question I am trying to utilize the new Bash completion for GDAL available with 3.11 to run an a local machine. Per Install GDAL into conda environment, I created and activated my

gdal · bash

小程序阅读全文

文章

Crop collar of USGS maps and stitch together with GDAL

Question I have been trying to crop the white collar off two adjacent USGS maps and then stitch the two together. I do not want to use QGIS or ArcGIS. I am using GDAL. I have tried

gdal

小程序阅读全文

文章

Google Earth Where is a KMZ file that I edited in the field located on my phone?

Question I was working with a KMZ file on the field, using the Google Earth mobile app and adding points and photos/text to each point. Now I cannot find it on my device and cannot

google-earth-engine · google-earth · kmz

小程序阅读全文

文章

Spectral indices fall outside the normal range

Question I'm a beginner in GIS and remote sensing, and I'm currently using ArcGIS Pro to calculate NDVI from Landsat imagery. However, I'm having a problem with the NDVI calculatio

arcgis-pro · ndvi · landsat

小程序阅读全文

文章

Why are contours from WhiteboxTools offset from the DEM?

Question I generated contours from a GeoTIFF DEM with WhiteboxTools' ContoursFromRaster. When I sample the DEM at the contour vertices, the values don't match the elevation the con

gdal · dem · contour

小程序阅读全文

文章

Problems with qgis_global_settings.ini after QGIS migration from 3 to 4

Question Since the upgrade from QGIS 3.44.8 to QGIS 4.2.1 our customized settings in qgis_global_settings.ini are no longer being applied. Does anyone know why this is happening an

qgis · qgis-3 · configuration

小程序阅读全文

文章

Slope derived from filled DEM coming out somewhat nonsensical

Question I'm teaching myself QGIS as I go along and re-doing some of my old college assignments to try and learn how to translate the skillset from Arc to Q. In this particular tas

qgis · dem · slope

小程序阅读全文

文章

Copying points to second layer based on spreadsheet list of events at those points in QGIS

Question I have a vector layer containing point features. I also have a spreadsheet containing a list of dates on which events happened at these locations. Some locations are liste

qgis · point · attribute-joins

小程序阅读全文

文章

Making two dimensional WKT with 2 decimal places in QGIS Field Calculator

Question I'm working with QGIS and need to create a WKT-file, without heights and just 2 decimal places. I can export the complete file and deselect the heights. I can use the fiel

qgis · field-calculator · geometry

小程序阅读全文

文章

Getting MapTiler quantized mesh working with CesiumJS

Question We're trying to move away from Cesium Ion, and our proposed solution for terrain is to use MapTiler's terrain mesh (specifically terrain-quantized-mesh-v2) with CesiumJS.

elevation · cesium · maptiler

小程序阅读全文

文章

Information about other layers are shown (WMS) in QGIS

Question Whenever I add a WMS-layer in QGIS (which is made by GeoServer), I see info about other layers. This doesn't happen to WFS layers that are generated by GeoServer. Why does

qgis · geoserver · wfs

小程序阅读全文