on February 2, 2023
Set color to polygons
Geographic Information SystemsHow do you change the color of a polygon? You can use the buttons on the Draw toolbar to change the color of a polygon graphic or text element. Select the graphic and click the appropriate color button on the Draw toolbar. The color updates immediately. For example, click the arrow next to the Fill
on February 2, 2023
Format and coordinate flip of the Projected Hartebeeshoek Coordinates?
Geographic Information SystemsHow do I project a coordinate system in Arcgis? Create a coordinate system In the Contents pane, right-click a map or scene and click Properties. On the Map Properties dialog box, click the Coordinate Systems tab. Click the Add Coordinate System button and click New Geographic Coordinate System , New Projected Coordinate System , or
on February 2, 2023
QGIS rule-based labeling with callouts
Geographic Information SystemsHow do I label callouts in QGIS? Enable the Label Callout Function in QGIS Head back to properties –> labels and select “callouts”. Then make sure the “Draw callouts” option is clicked. You can choose from two line shapes – a simple linear line or Manhattan lines (which transforms angles to a 45 degree line).
on February 2, 2023
Adding AddIn to ArcMap UI automatically after AddIn installed?
Geographic Information SystemsHow do I use an addin in Arcmap? Here are the steps necessary to test an add-in: Make the add-in file. Go to your working folder and run the makeaddin.py script by double-clicking it. Install the add-in. Double-click the new add-in file to launch ESRI ArcGIS Add-In Installation Utility. Use the add-in. How do I
on February 2, 2023
What are the differences between 81989 and 27700 CRS for the British National Grid?
Geographic Information SystemsWhat is the difference between EPSG 7405 and 27700? In fact, EPSG:27700 can be used without any problem on any tools because it does not depend on a specific height grid. In contrast, EPSG:7405, is more accurate because it explicitely uses the ODN height data… but requires it to be loaded in the converter tool.
on February 2, 2023
Adding a new CRS to QGIS 3.10 with custom coordinate reference system
Geographic Information SystemsHow do I create a custom CRS in QGIS? To create a new CRS, or modify an existing CRS: Click Settings | Custom CRS to open the Custom Coordinate Reference System Definition. Click Add new CRS button to add a new entry to the CRS list above. With the new CRS selected, we can set
on February 2, 2023
Determining if spatial reference Geographic or Projected using ArcObjects?
Geographic Information SystemsWhat is the difference between geographic and projected coordinate reference systems? What is the difference between a geographic coordinate system (GCS) and a projected coordinate system (PCS) anyways? Here’s the short answer: A GCS defines where the data is located on the earth’s surface. A PCS tells the data how to draw on a flat
on February 2, 2023
Joining table in ArcGIS Desktop but join field is greyed out?
Geographic Information SystemsHow do I join an attribute table in Arcgis? Joining attributes in one table to another In the table of contents, right-click the layer or table you want to join, point to Joins and Relates, then click Join. Click the What do you want to join to this layer? Click the field on which the
on February 2, 2023
How to download tile from Amazon’s Sentinel-2 service
Geographic Information SystemsWhere can I download Sentinel-2 data? All Sentinel-2 data are freely available from the Copernicus Open Access Hub. Users can download the data via https://scihub.copernicus.eu/. How do I download data from my Sentinel hub? Sentinels Scientific Data Hub Create a User Account. Go to Sentinels Scientific Data Hub. Select Your Area of Interest. Where is
on February 2, 2023
How to convert coverage (.adf) to shapefile?
Geographic Information SystemsHow to convert coverage to shapefile? Put all the coverage files in one folder, select all the ones you want to change into shapefiles, right click, export –> shapefile (multiple), then select the output folder and OK. It takes a while but it’s so easy! How do I open ADF files in Arcgis? ADF files