on January 15, 2023
Raster Calculator in QGIS returning ‘nan’ values
Geographic Information SystemsHow to fill NoData in raster? With a bit of trial and error, we’ve found the most effective way to fill in NoData cells is using the Close Gaps tool. You can find the Close Gaps tool in the Grid toolbox. Change the input raster to your DEM or any raster data set with holes.
on January 15, 2023
Color Ramp in QGIS
Geographic Information SystemsHow do I change the color of a ramp in Qgis? In the menu Settings – Style Manager you can see the tag “Color ramp”. By clicking on the green plus you can add manually some color ramps or choose the cpt-city addon the allows you to choose between a lot of different color ramps.
on January 15, 2023
Generate and add L.control.layers from GeoJson properties to Leaflet
Geographic Information SystemsHow do you add a GeoJSON layer to a leaflet? The GeoJSON layer To create it and add it to a map, we can use the following code: L. geoJSON(geojsonFeature). addTo(map); How do I add a layer to a leaflet? Step 1 − Create a Map object by passing a element (String or object) and
on January 15, 2023
Labeling only one object in layout using ArcGIS Desktop
Geographic Information SystemsHow do I only label certain features in ArcGIS? To label selected features in ArcGIS Pro, the labels must be converted to feature-linked annotations. In the Contents pane, right-click the desired feature layer and select Label. How do I label individual points in ArcGIS? The Labeling tab on the ArcGIS Pro ribbon gives you direct
on January 15, 2023
Connecting ArcGIS for Desktop to Oracle without ArcGIS for Server?
Geographic Information SystemsHow to connect to Oracle database in ArcGIS? Connect to the database Open the Catalog pane in ArcGIS Pro. Right-click Databases and click New Database Connection. Choose Oracle from the Database Platform drop-down list. Either type the Oracle TNS name in the Instance text box, or provide one of the following Oracle Easy Connect strings:
on January 15, 2023
Effects of lower-resolution data?
Geographic Information SystemsWhat happens when resolution is decreased? Higher resolutions mean that there more pixels per inch (PPI), resulting in more pixel information and creating a high-quality, crisp image. Images with lower resolutions have fewer pixels, and if those few pixels are too large (usually when an image is stretched), they can become visible like the image
on January 15, 2023
Using a selection tool will select everything
Geographic Information SystemsWhat is the selection tool used for? The selection tools are what you will use to select portions of an image to edit. While each of these tools are for selection, they differ in how they go about selecting, and their levels of sophistication vary. Rectangular Marquee: You can select rectangular portions of an image
on January 15, 2023
Looking for an API that will autocomplete adresses, and split them up into parts
Geographic Information SystemsIs Google autocomplete API free? The autocomplete request is available at no charge, and the subsequent Place Details call gets charged based on regular Place Details pricing. A Place Details request generates Data SKUs (Basic, Contact, and/or Atmosphere) – depending on the fields that are specified in the request. What is Google autocomplete API? Autocomplete
on January 15, 2023
Can MySQL be used instead of PostGIS database in QGIS?
Geographic Information SystemsWhich database does QGIS use? Database formats include PostgreSQL/PostGIS, SQLite/SpatiaLite, Oracle, DB2 or MSSQL Spatial, MySQL…; Support of web data services (WM(T)S, WFS, WCS, CSW, ArcGIS Servers…) is also handled by QGIS providers (see QGIS as OGC Data Client); Does MySQL support spatial data? MySQL has spatial data types that correspond to OpenGIS classes. The
on January 15, 2023
How to calculate altitude with given lat,long position?
Geographic Information SystemsHow do you find altitude with latitude and longitude? Altitude cannot be calculated from coordinates directly. However, NASA’s satellites scoured the Earth’s surface with radars and more or less accurately modeled the elevation of each point on the globe. dCode uses this data to find the altitude of a GPS point. How do I find