on January 3, 2023
Change column order in postgis 2.0
Geographic Information SystemsHow to change column order in PostgreSQL? Postgres currently defines column order based on the attnum column of the pg_attribute table. The only way to change column order is either by recreating the table, or by adding columns and rotating data until you reach the desired layout. How do I change the order of rows
on January 3, 2023
Sharing custom toolbox processes with others
Geographic Information SystemsHow do I share a toolbox in Arcgis? Right-click the toolbox, hover over Send to, and select Compressed (zipped) folder. How do I share my Kobo toolbox? By default, KoboToolbox only requires a username and password for accessing data and managing your projects. When a project has been deployed, the Enketo web form can be
on January 3, 2023
Grouping latitude and longitude coordinates by city neighborhood
Geographic Information SystemsHow do you find the coordinates of a city? Get the coordinates of a place On your computer, open Google Maps. Right-click the place or area on the map. This will open a pop-up window. You can find your latitude and longitude in decimal format at the top. To copy the coordinates automatically, left click
on January 3, 2023
QGIS – Using Rule Based Labels With Related Tables
Geographic Information SystemsHow do I use rule based Labelling in Qgis? Quote from video: Set. So for example if i click on this expression. Button it will open the expression builder where basically i'm supposed to write an expression in this section. How do I label only selected features in Qgis? Open the labeling dialog and set
on January 3, 2023
Geometry to Shapefile
Geographic Information SystemsWhat is geometry shapefile? The shapefile format stores the geometry as primitive geometric shapes like points, lines, and polygons. These shapes, together with data attributes that are linked to each shape, create the representation of the geographic data. How do I create a SHP file? Creating a new shapefile Select a folder or folder connection
on January 3, 2023
Converting a drawn map into vector tiles
Geographic Information SystemsHow do you make a vector tile? Create vector tiles Highlight the map in the Contents pane. On the Share tab, in the Share As group, click the Web Layer menu and click Publish Web Layer . In the Share As Web Layer pane, on the General tab, under the Layer Type heading, choose Vector
on January 3, 2023
Are Google satellite images precise enough for georeferencing?
Geographic Information SystemsHow accurate is Google satellite imagery? The control points derived from satellite imagery have an accuracy of 22.8 meters RMSE, which is significantly more accurate than the 48 control-points based on aerial photography (41.3 meters RMSE; t-test p-value < 0.01). How accurate is Google Earth imagery? The lowest RMSE (3.68 m) and highest vertical accuracy
on January 3, 2023
How to read geographic coordinates when the Shapefile has a projected spatial reference
Geographic Information SystemsHow do you specify a spatial reference with a projected coordinate system? prj file in the Create Feature Dataset tool to define the spatial reference of the dataset. Right-click a coordinate system in the Coordinate Systems Available list. Click Save as Projection File . On the Save Coordinate System as PRJ File dialog box, browse
on January 3, 2023
How to split circles in 8 quadrants
Geographic Information SystemsHow do you divide a circle into 8 parts? Quote from video: It with the center point and then those opposite intersections I can draw a line through. There. And the line through those two intersections. And there's a circle divided into eight equal parts. How do you divide a circle into quarters? Just draw
on January 3, 2023
Every time I export a new print composer (either image, svg, or PDF) in QGIS 2.18.1, I lose my composer
Geographic Information SystemsHow do I save a print composer in QGIS? Quote from video: And there it is available for you 300 pixel. So to export the map very simply just click on this button here export as SVG. How to export QGIS to SVG? With Atlas ‣ Export Atlas as Images… or Atlas ‣ Export Atlas