Calculating GSD (ground sample distance) from zoom level and vice versa?

How do you find ground sampling distance? How Do You Calculate GSD? The formula to calculate GSD is (flight altitude x sensor height) / (focal length x image height and/or width).  How do you calculate GSD in photogrammetry? How to calculate GSD GSDh= flight height x sensor height / focal length x image height; GSDw=

Rotate Data for Gridding

How do you rotate data sets? Highlight the range of cells you want to transpose and copy (Ctrl+C) it to the clipboard. Then right-click your mouse, click on Paste Special and the following menu appears with the Transpose box on the bottom: Click in the Transpose box and the table spins 90 degrees.  How do

Configurable Map Viewer Basemaps in Dropdown With Different Projections

How do I add a custom Basemap to Basemap gallery? Step 1 – Go to your organizations Settings, and open the Map tab. Step 2 – In the Basemap Gallery section, do the following. a – Select your custom basemap gallery group from the dropdown list. b – Choose Share basemaps to add the default

Why can’t I open projects with QGIS?

You probably changed the location of the project file or the data files. The message means that QGIS cannot locate the data files at the location it expects them to be. You can double-click on the paths to open a file dialog which allows you to manually search for the files in your file system. 

Is PhD in GIS useful in non-educational career path?

Is GIS a good career path? GIS is a strong career, and it will be in demand for a long time. But like all careers, GIS is changing fast with new techniques every day. The diagram below shows the range of salary from entry-level (less experience) to senior level (more experience).  How useful is a

KML (with no data/feature) to shapefile

Can you convert a KML file to a shapefile? The kml file may contain any number of points, lines, and polygons. The script will create a shapefile for the feature type of interest. If the kml file contains more than one type of feature, you will need to run the script once for each feature

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