on January 1, 2023
A way to generate random/fake sensor data
Geographic Information SystemsHow do you generate dummy data? For most program modifications, the process looks like the following: Set up a test environment in the DBMS. Implement the modification in the test environment. Use the copied live data as dummy data. Activate the modification in test. Fix bugs. Go live with the program modification on live data.
on January 1, 2023
Creating custom projection using provided Helmert Parameters and ArcMap?
Geographic Information SystemsHow do I create a custom projection in Arcmap? Answer Open ArcToolbox and select Data Management Tools > Projections and Transformations > Define Projection. Choose the appropriate coordinate system. You have to define it as what it is, not as what you want it to be. Once the projection is defined correctly, the projection can
on January 1, 2023
How to hand over polygon attribute to new point while digitizing?
Geographic Information SystemsHow do I edit an existing polygon in QGIS? Editing Polygons or Lines is similar to editing Point features, except that there will always be “segments” or “arcs” connecting the vertexes involved. Go to any POLYGON layer that you want to practice editing. Right-click on the Layer in the Layers Panel and select TOGGLE EDITING.
on January 1, 2023
QGIS Handling Heatmap Data Range
Geographic Information SystemsHow do I create a heatmap from points in Qgis? Tutorial: Creating a Heatmap Select the. In the Input point layer. Specify an output filename by clicking the. Leave the Output format as the default format, GeoTIFF . Change the Radius to 1000000 meters. Click on [OK] to create and load the airports heatmap (see
on January 1, 2023
Plot a range of values of a NDVI calculated in Google Earth Engine
Geographic Information SystemsHow do I create a NDVI in Google Earth Engine? Calculate NDVI from Recent Sentinel Satellite Imagery in Google Earth Engine Summary. Get started in Earth Engine (new users) Import Sentinel-2 Imagery within your study area. Calculate NDVI from the Sentinel-2 imagery. Select the Most Recent Image. Add the Most Recent NDVI Image to the
on January 1, 2023
Is it necessary to master openlayers to use geoserver?
Geographic Information SystemsIt isn’t necessary to learn OpenLayers or Leaflet when you just want to use GeoServer. How to use GeoServer with OpenLayers? You will need to install GeoServer and load a new layer. Use any open data file (e.g. from your cities open data portal or the World Bank portal) for this task. Then implement a
on January 1, 2023
Exporting layer extent information for 400 layers in QGIS?
Geographic Information SystemsHow do I get extent in QGIS? How can I identify the coordinates for the Map Extents of my QGIS Map? The cursor coordinates are shown in the centre of the Status bar. By clicking the mouse image to the right of the coordinates, you change the setting from the default – cursor coordinates –
on January 1, 2023
Is there a geo-fence map of Apple’s or Google’s reverse geocoding?
Geographic Information SystemsWhat is the name of the iOS framework that provides reverse geocoding capabilities? Reverse Geocoding refers to the conversion of a location’s geographic coordinates into a human-readable street address. The Maps SDK for iOS includes a class called the GMSGeocoder class, which includes the reverseGeocodeCoordinate member function which you can use to perform the conversion.
on January 1, 2023
How to get information about layer-structure on a WMS
Geographic Information SystemsWhat are WMS layers? A WMS layer is a georeferenced map image loaded from a Web Map Service. These are used as backgrounds and overlays for geographical maps in Yellowfin. How do I download a WMS layer? To do this: Click on the Get Data From Map icon to bring up the Virtual Earth Map
on January 1, 2023
Multiple shapefile export to kml
Geographic Information SystemsCan you convert shapefiles to KML? In the Geoprocessing pane, click Toolboxes, and navigate to Conversion Tools > KML > Layer To KML. In the Layer drop-down list, select the shapefile or the layer group containing the shapefiles. Set a name and location for Output File. Set other parameters as desired, and click Run. How