on February 10, 2023
How to georeference an image with only eastings and northings
Geographic Information SystemsHow would you describe a location using easting and northing? Eastings are the vertical lines running from the top to bottom and divide the map from west to east. Northings are the horizontal lines running left to right and divide the map from north to south. What are the two ways an image can be
on February 10, 2023
Rotate Feature or Geometry OpenLayers 3
Geographic Information SystemsHow do I rotate a feature in Openlayers? Use Alt+Shift+Drag to rotate the map. What are the 3 types of rotation? These rotations are called precession, nutation, and intrinsic rotation. How to do rotation in transformation geometry? Quote from video: So we start with a figure and making one quarter turn is equivalent to a
on February 10, 2023
Using gdal.Translate to extract tile from Google Cloud Storage Bucket Cog File without reading the whole file
Geographic Information SystemsHow do I download all files from Google Cloud bucket? Download an object from a bucket In the Google Cloud console, go to the Cloud Storage Buckets page. In the list of buckets, click on the name of the bucket that contains the object you want to download. Navigate to the object, which may be
on February 10, 2023
How to get information about layers using Arcpy
Geographic Information SystemsHow do I find the layer properties? To open the Layer Properties dialog box, right-click the layer in the Contents pane and click Properties, or double-click the layer name. Click the tab containing the properties you want to modify, make your changes, and click OK when you are finished. How do I search for data
on February 10, 2023
Why is QGIS not launching?
Geographic Information SystemsWhy is my QGIS not responding? The problem actually only occurs when a network drive is disconnected. Either closing the browser tab or hiding the networks helped to fix it. How do I launch QGIS? Start QGIS by typing “QGIS” at a command prompt, or if using a precompiled binary, by using the Applications menu.
on February 10, 2023
QGIS OpenLayers Plugin shows black for OSM?
Geographic Information SystemsHow to add OSM plugin in QGIS? Installation. It is a “core” plugin which comes with QGIS when it’s first installed, and just needs to be enabled. Go to ‘Plugins’ menu -> ‘Manage Plugins…’ and find OpenStreetMap. Tick the plugin to enable it. Can I open OSM file in QGIS? QGIS (formerly Quantum GIS) is
on February 10, 2023
Problem with viewing ASCII data files in ArcGIS
Geographic Information SystemsHow do I open an ASCII file in ArcGIS? Procedure In ArcGIS Pro, open a new blank project. In the Analysis tab, click the Tools icon in the Geoprocessing group to activate the Geoprocessing pane. Navigate to Toolboxes > Conversion Tools > To Raster > ASCII to Raster. In the Parameters section, browse the ASCII
on February 10, 2023
Has anybody else experienced having issues opening QGIS or .gqz project files on macs?
Geographic Information SystemsWhy can’t I open QGIS on my Mac? Overriding Mac Security Preferences to Install QGIS If your security settings are strict, you will be blocked from installing this package with a message stating, “1 GDAL Complete. pkg” can’t be opened because it is from an unidentified developer. How do I open a QGZ file in
on February 10, 2023
Inserting hyperlink to PDFs for each Polygon using QGIS?
Geographic Information SystemsHow do you add a hyperlink to a PDF? How to add hyperlinks in a PDF. Choose Tools › Edit PDF › Link › Add or Edit. Drag a rectangle where you want to create a link. In the Create Link dialog box that appears, choose your link appearance. Select the destination for your hyperlink.
on February 10, 2023
Raster:area() in R before and after projecting data
Geographic Information SystemsWhat is area function raster R? The „area“ function of R’s „raster package“ results in a vector of the cell sizes in the raster object (in km2), which differ from north to south. In order to calculate the entire area’s size can be obtained by adding up all cell sizes or multiplying the median cell