Posted on December 27, 2022 (Updated on July 10, 2025)
What does “foo” stand for in this PostGIS command?
Hiking & ActivitiesWhat is foo in PostgreSQL? ‘foo’ is the name that has been assigned to the sub-selection. It has no function other than being syntactically necessary – a sub-selection in PostgreSQL must have a name assigned to it, but it does not matter what the name is. How to check object type in PostgreSQL? In PostgreSQL,
Posted on December 27, 2022 (Updated on July 10, 2025)
ArcGIS Pro Unique Values with Domains Does not Display Correct Number of Classes
Hiking & ActivitiesHow do I change the number of classes in ArcGIS? Click the Symbology tab. Click the Classify button. Click the Method arrow and click Manual. Click the up/down arrow of the Classes input box until the desired number of classes is reached. How do I get unique values in ArcGIS Pro? To create a unique
Posted on December 27, 2022 (Updated on July 10, 2025)
ArcMap to automatically create polygons from shapes that are present in an image raster
Hiking & ActivitiesHow do I create a polygon from raster in ArcGIS? Navigate to ArcToolbox > Data Management Tools > Features > Feature To Polygon. Run the Feature to Polygon tool on the fishnet output from step 2, with the Raster to Points output specified in the Label Features field. This gives the final polygon which has
Posted on December 27, 2022 (Updated on July 10, 2025)
Import .dxf with pyqgis
Hiking & ActivitiesHow do I import a DXF file? Open Adobe Illustrator. Drag and drop your DXF file into Illustrator. Click Original File Size on the Artwork Scale pop-up. The file will open and you’re free to edit. How to import a DXF file into QGIS? DXF and DWG files can be added to QGIS by simple
Posted on December 27, 2022 (Updated on July 10, 2025)
Change layer properties
Hiking & ActivitiesHow do I change the properties of a layer? Click the Layer tab. The layers from the original AutoCAD drawing are listed along with their associated visibility, color, and weight options. If you want to change a setting for a layer, simply click it: Clicking the word Yes changes it to No. How do I
Posted on December 27, 2022 (Updated on July 10, 2025)
QGIS 2.0.1. missing Google Mercator CRS
Hiking & ActivitiesHow do I add a coordinate system in QGIS? To create a new CRS, or modify an existing CRS: Click Settings | Custom CRS to open the Custom Coordinate Reference System Definition. Click Add new CRS button to add a new entry to the CRS list above. With the new CRS selected, we can set