on February 6, 2023
Field calculator ‘if/then’ statement, with ‘and’ not working
Geographic Information SystemsHow do you do an if statement in the field calculator? How To: Use IF statements in the Field Calculator Classify a field according to a range of values from another field. Copy values from one field to another if the value contains a number. Copy values from one of two fields to another field.
on February 6, 2023
Destop application using arcobjects library
Geographic Information SystemsHow do I download ArcGIS to desktop? Download ArcGIS Pro from ArcGIS Online Sign in to your ArcGIS Online organization. At the top of the page, click your username and click My settings. On the My settings page, click the Licenses tab. Next to ArcGIS Pro, click Download ArcGIS Pro. In the Download window, review
on February 6, 2023
Submit a form from within a leaflet popup?
Geographic Information SystemsHow do I add a pop up in Leaflet? Use the addPopups() function to add standalone popup to the map. A common use for popups is to have them appear when markers or shapes are clicked. Marker and shape functions in the Leaflet package take a popup argument, where you can pass in HTML to
on February 6, 2023
Changing data type in attribute table in QGIS
Geographic Information SystemsHow do I change the datatype of an attribute table in QGIS? QGIS Change Attribute Type Firstly, Open your Shape in QGIS. Review the current field and data types in your table by right clicking on the layer in your layers panel and selecting Properties. Now click on the fields panel on the left hand
on February 6, 2023
Why does my mouse cursor jump to another screen location when I try to edit a Layer?
Geographic Information SystemsHow do I stop my cursor from switching monitors? How to Stop the Mouse from Moving to the Second Screen Right-click the desktop and open settings. You will discover that the alignment of your screens is side-by-side. Click on the monitor labeled 2, drag it, and place it diagonally to the 1st screen. Problem solved.
on February 6, 2023
Indexing attribute field of shapefile in QGIS
Geographic Information SystemsHow do I add attributes to a shapefile in QGIS? Page 1 How to: Add Fields and Edit Attributes in QGIS. Open QGIS Desktop. Click the Open Data Source Manager button. Figure 1. Make sure Vector is selected and click the button to the right of the Vector Dataset(s) in the Source section. Figure 2.
on February 6, 2023
Using Arcmap 10.2.2, Con tool and Reclassify not working correctly
Geographic Information SystemsWhere is reclassify in ArcMap? Reclassification is the process of reassigning one or more values in a raster dataset to new output values. The Reclassify tool is available in the Spatial Analyst extension in both ArcMap and ArcGIS Pro. How does reclassify work? A reclassification occurs when job duties, responsibilities, and required qualifications of a
on February 6, 2023
Python script: Access data from databases
Geographic Information SystemsHow do you access data from database in Python? To access databases in Python, you’ll need to use a database adapter. Python offers database adapters through its modules that allow access to major databases such as MySQL, PostgreSQL, SQL Server, and SQLite. Furthermore, all of these modules rely on Python’s database API (DB-API) for managing
on February 6, 2023
How to label features in QGIS using SQL statement?
Geographic Information SystemsHow do I label features in QGIS? Turn on Labels in QGIS Right-click on the layer and select the properties option from the menu. Then click on Labels and set up the field you want to label on. How do I write SQL in QGIS? Quote from video: Use the DB manager to connect to
on February 6, 2023
How to add hyperlink in geojson popup in Leaflet?
Geographic Information SystemsHow do you add GeoJSON data to a leaflet? GeoJSON objects are added to the map through a GeoJSON layer. To create it and add it to a map, we can use the following code: L. geoJSON(geojsonFeature). How do I read a GeoJSON file in leaflet? geoJson function is used to parse geojson file and