Posted on February 22, 2023 (Updated on July 10, 2025)
Defining Bertin1953 projection in QGIS 3.18.2 Zürich
Hiking & ActivitiesHow do you define projection in QGIS? To determine the projection of a layer, right click on the layer under the Layers window on the left side of the QGIS window. Next, under the Properties window, click on the Metadata tab. The CRS assigned to the layer can be seen under the label Layer Spatial
Posted on February 22, 2023 (Updated on July 10, 2025)
Preload map tiles that are outside current map view in Leaflet
Hiking & ActivitiesCan leaflet use vector tiles? Leaflet doesn’t support vector tiles by default. For basemaps, it is recommended to use it with traditional raster tiles (Mercator XYZ). Such tiles can be generated on demand for any of the GL styles with the open-source server software called TileServer GL. What is Tilelayer in leaflet? Used to load
Posted on February 22, 2023 (Updated on July 10, 2025)
Perform Calculations in Cartesian Frame (NED/ECEF) Vs. Geodetic Frame
Hiking & ActivitiesWhat is the difference between geodetic and ECEF? Geodetic coordinates are probably the best choice for a LEO platform. This coordinate system allows the platform to be correctly positioned anywhere. In contrast, using the ECEF coordinate system would require the user to back out the earth rotation from the platform position since both are moving
Posted on February 22, 2023 (Updated on July 10, 2025)
What does the ‘Field’ selection do in QGIS report composer?
Hiking & ActivitiesHow do I create a selection in QGIS? You can obtain the options for selecting by going to “View” in the menu, and then choosing the “Select” option from the drop-down menu. You can also obtain the options by selecting the “Select Features” icon on your menu. How do I select all features in a
Posted on February 22, 2023 (Updated on July 10, 2025)
Trying to plot coordinates through xy data, but ArcMap plots the points in the Atlantic ocean near 0 degrees by 0 degrees every time
Hiking & ActivitiesHow do you plot XY coordinates in ArcMap? Steps for adding x,y data as a layer Click File > Add Data > Add XY Data. Select the table that contains x,y coordinate data. Identify the columns that hold the x- and y-coordinates (and, optionally, the z-coordinate). Specify the coordinate system. Why is my XY data
Posted on February 22, 2023 (Updated on July 10, 2025)
Different legend properties with ArcGIS API for JavaScript
Hiking & ActivitiesHow do I change the legend value in ArcGIS? Double-click the legend to bring up the Legend Properties dialog box. Click the Legend tab on the Legend Properties dialog box. Right-click the item from Legend Items in which you want to edit and click Properties. Make your changes using the Arrangement and General tabs. How