on February 22, 2023
What’s the difference between QgsPoint, QgsPointXY and QgsGeometry.fromPointXY(QgsPointXY()) in PyQGIS?
Geographic Information SystemsWhat is PyQGIS? PyQGIS refers to the Python environment within QGIS. It allows users to automate workflow and extend QGIS with the use of Python libraries. But it’s not only Python core libraries. You can also leverage thousands of third-party libraries adding functionality with scientific and data analysis. What is feature geometry () in PyQGIS?
on February 22, 2023
Which python version for standalone script with Qgis module
Geographic Information SystemsWhat version of Python does QGIS use? 3.28 version at https://qgis.org/pyqgis/3.28. How do I add a Python script to QGIS? In the main QGIS window, go to Plugins ‣ Python Console. Once the console is open, find your script in the Processing Toolbox and double-click it to launch it. How to connect Python with QGIS?
on February 22, 2023
Landsat: Searching for and downloading cloud-free images for a small area
Geographic Information SystemsAre Landsat images free? Since 2008, Landsat Level-1 data, as well as Level-2 and Level-3 science products held in the USGS archive, have been available for download at no charge from a variety of data portals. Is Landsat 8 imagery free? All Landsat data are available from USGS for free. How do I find Landsat
on February 22, 2023
Calculate Fields with Null Values using arcpy.da.UpdateCursor of ArcGIS for Desktop?
Geographic Information SystemsHow do you find the null value in ArcGIS? Finding null features Start ArcMap. Load data in the map if necessary. On the main menu, click Customize > Toolbars > Production Editing. Add the Null Feature Remover tool by doing the following: Click the Production Start Editing button. Click Null Feature Remover. Click OK. How
on February 22, 2023
Distance from within boundary in Shapely
Geographic Information SystemsWhat is Hausdorff distance in shapely? The Hausdorff distance between two geometries is the furthest distance that a point on either geometry can be from the nearest point to it on the other geometry. Returns a cheaply computed point that is guaranteed to be within the geometric object. This is not in general the same
on February 22, 2023
Select by location is not working in the processing modeler
Geographic Information SystemsHow to select by location in QGIS? Quote from video: So first let's plug the Select by location tool. And I'll just start over here but you can just search for it in the bottom by doing select by location. And then click enter on it. How do I select a polygon in QGIS? From
on February 22, 2023
How to divide a certain country on a map into grids?
Geographic Information SystemsHow do you draw a grid on a map? Using the ruler, draw a rectangle on the map around the entire city area. Divide the rectangle into 1-inch grid squares. Beginning at the bottom, measure up 1 inch and draw a parallel line from left to right on the horizontal. Measure up another inch and
on February 22, 2023
Logging outgoing request with GeoServer & MapFish
Geographic Information SystemsHow do I enable logs in GeoServer? GeoServer provides a request logging capability that is inactive by default.To track a history of the incoming requests: Enable request logging by navigating to Settings > Global page, scroll down to Logging Settings, and Enable Request Logging. Enable this feature using Enable Request Logging. What are the logging
on February 22, 2023
How can I include HTML in a Folium Marker popup?
Geographic Information SystemsHow to embed Folium map in HTML? Pass HTML to Folium Map Markers Then we insert each HTML page to its corresponding marker pop-up by using folium. Popup() method. Finally, we pass the popup to the folium markers and add the markers to our map. And there you go! How do you add a marker
on February 22, 2023
Adding field aliases from CSV in QGIS
Geographic Information SystemsHow do I add a field from a CSV file to QGIS? Once the csv files are formatted properly, you can add them into QGIS. Click on the “Layer” menu, mouse-over “Add Layer” and click on “Add Delimited Text Layer…” or click on the “Add Delimited Text Layer” icon in the left column of QGIS.