on January 24, 2023
Connecting ArcGIS Desktop to remote PostgreSQL database?
Geographic Information SystemsHow do I connect to a PostgreSQL database remotely? 13.4 Connecting to a Remote PostgreSQL Database Change the listening address in the postgresql. conf file. By default, PostgreSQL allows to listen for the localhost connection. Add a client authentication entry to the pg_hba. conf file. Test the remote connection. Restart the remote PostgreSQL server. How
on January 24, 2023
Return non-empty field names and attributes using Arcade function in ArcGIS Online
Geographic Information SystemsWhat does == mean in arcade? Description. Example. == Equal to. Evaluates to true if the x-value is equal to the y-value. How do you represent a range of dates using arcade in ArcGIS pro? Procedure In ArcGIS Pro, right-click the layer in Contents and click Symbology. In the Symbology pane, select Unique Value from
on January 24, 2023
How do I construct a REST query for ArcGIS to obtain the nearest SSA field office?
Geographic Information SystemsWhere is the ArcGIS rest Services Directory? In the Administrator Directory, click system > handlers > rest > servicesdirectory > edit. How do I add a REST URL in ArcMap? You can use a URL shortcut by typing http:///arcgis/rest. Navigate to the desired map service. A web page similar to the Demographics service description page
on January 24, 2023
Getting roads shapefiles for specific years
Geographic Information SystemsHow do I download road shapefile? Download Shapefile Road Network River Network Important Places easily and quickly Step: 1 Downloading Criteria Setting. Step: 2 Determine Area of Interest or Study area. Step:3 a) Download data using your email account and b) Download data using service page status. How do I extract roads in Qgis? Quote
on January 24, 2023
Querying OpenStreetMap tags by polygon using QGIS?
Geographic Information SystemsHow to use OpenStreetMap in QGIS? Start QGIS Desktop. Go to: Vector (menu) → OpenStreetMap → Import Topology from XML. Select the . osm file, and it’ll suggest a name for the SpatiaLite database that will be created from this data. How to convert OSM to shapefile in QGIS? Quote from video: Now we type
on January 24, 2023
ArcMap data links redirecting to location of exported map
Geographic Information SystemsHow do I fix a broken data link in ArcMap? Repair a broken data source link for a layer or table In the Contents pane of a map, right-click the dataset, and click Properties. On the Source tab, click Set Data Source. On the dialog box that appears, browse to the data source, select it,
on January 24, 2023
Gradient buffering background layer in ArcGIS Desktop?
Geographic Information SystemsWhat is feathering on a map? Feathering is a technique that makes the area you want to highlight on your map stand out. This helps your map readers focus on the area that’s important on the map. With feathering, you can fade a dark edge of any color into the background. How do I fill
on January 24, 2023
Water depths map layer
Geographic Information SystemsWhat maps show water depths? Bathymetry is the measurement of the depth of water in oceans, rivers, or lakes. Bathymetric maps look a lot like topographic maps, which use lines to show the shape and elevation of land features. On topographic maps, the lines connect points of equal elevation. On bathymetric maps, they connect points
on January 24, 2023
PostGIS change column type varchar => geometry
Geographic Information SystemsHow to change datatype of a column in PostgreSQL? First, specify the name of the table to which the column you want to change belongs in the ALTER TABLE clause. Second, give the name of column whose data type will be changed in the ALTER COLUMN clause. Third, provide the new data type for the
on January 24, 2023
Earth engine reproject: why does reprojecting a pixel at 30m scale gives me pixels with an area of ~550?
Geographic Information SystemsWhat is scale in Google Earth Engine? Understanding how Earth Engine handles scale is crucial to interpreting scientific results obtained from Earth Engine. Here, scale means pixel resolution. Unlike other GIS and image processing platforms, the scale of analysis is determined from the output, rather than the input. How do I change the projection on