on January 22, 2023
Avoiding cutting labels along map border using QGIS
Geographic Information SystemsHow do I hide labels in Qgis? For the features where you do not want to show labels, fill it up with the value 0 . Then in the label dialog, where you configure the label display options, add a filter like “show_lbl” >= 1 . The feature labels should be displayed/hidden to your liking.
on January 22, 2023
PostGIS: Describe bands in raster
Geographic Information SystemsWhat are bands in a raster? Basically, a band is represented by a single matrix of cell values, and a raster with multiple bands contains multiple spatially coincident matrices of cell values representing the same spatial area. An example of a single-band raster dataset is a digital elevation model (DEM). Can you store raster in
on January 22, 2023
QGIS show only selected polygons on the map
Geographic Information SystemsHow do I show only selected features in QGIS maps? To show only selected features in a QGIS attribute table, click the filter options button in the bottom right corner of the attribute table. Then choose ‘Show Selected Features’. QGIS filtering options also have other useful presets that may prevent you from even needing a
on January 22, 2023
Why might third-party extension be missing from Extensions dialog of ArcGIS for Desktop?
Geographic Information SystemsHow do I enable extensions in Arcmap? Turn on Extensions in ArcGIS Pro Find out which extension you need to turn on. Once you know which extension(s) you need, go to the Project tab in your ArcGIS Pro project. Click Licensing. Scroll down and click Configure your licensing options. Once it loads, check off the
on January 22, 2023
Is anyone using QGIS as an educational tool?
Geographic Information SystemsWho uses QGIS? Approximately 200 000 active users who use QGIS on a weekly basis. These are members in user groups, social media groups. They are active end-users who use QGIS for cartographic work, data analysis and much more. Over 2 million irregular users worldwide. Is QGIS hard to learn? QGIS can be very easy
on January 22, 2023
”More than one row returned by a subquery used as an expression” postgres error
Geographic Information SystemsHow do you fix more than one row returned by a subquery used as an expression? Technically, to remove the error, add LIMIT 1 to the subquery to return at most 1 row. The statement would still be nonsense. Practically, you want to match rows somehow instead of picking an arbitrary row from the remote
on January 22, 2023
How to select and shade polygons I am interested based on existing shapefile in ArcGIS 10.2
Geographic Information SystemsHow do I add a polygon to an existing shapefile in Arcmap? To create a polygon feature, complete the following steps: Add your data and configure settings for editing. On the ribbon, click the Edit tab. In the Create Features pane, click a polygon feature template. Click the Polygon tool . Click the map to
on January 22, 2023
Map Scale Bar Grossly Incorrect
Geographic Information SystemsWhy is my scale bar wrong ArcMap? Answer. A scale bar on a map set to a geographic coordinate system using units of decimal degrees only measures distances correctly at the Equator. To apply a scale bar that measures distances correctly over all areas of the Earth’s surface, the ArcMap data frame must be set
on January 22, 2023
Understanding measurement units for MODIS data?
Geographic Information SystemsWhat is MODIS satellite data? In addition to recording the frequency and distribution of cloud cover, MODIS measures the properties of clouds such as the distribution and size of cloud droplets in both liquid water and ice clouds. MODIS also measures the properties of aerosols—tiny liquid or solid particles in the atmosphere. What is Terra
on January 22, 2023
Changing style across multiple layers
Geographic Information SystemsHow do I edit multiple layers at once? Quote from video: You want to be able to go back to the original. So i've done that already. And now what i'm going to do i'm going to edit. This line layer as i want i'm going to record how i've edited. Can you transform multiple