Category: Geographic Information Systems

How to create a new postgis database for usage with QGIS under windows

How to add PostGIS to QGIS? Connect PostGIS to QGIS Just open Layer > Add Layer > Add PostGIS Layer. From there you can enter the details about your database and connect it.  How do I add a database to QGIS? How to create a spatial database Open QGIS and the exploration panel. If the

How raster files are stored in databases?

How to store raster data in a database? There are three methods to store image and raster data: as files in a file system, within a geodatabase, or managed from within the geodatabase but stored in a file system. This decision also involves determining whether to store all the data in a single dataset or

Joining Multiple Features to One Feature

How do I merge two features in ArcGIS? Merge existing features On the Edit tab, in the Features group, click Modify . Expand Construct and click Merge . Click the Existing Feature tab. Click Select. In the pane, add or remove features from the selection. Configure the attributes fields and field values for the merged

Creating a New Shapefile from Joined Access Table

How do I create a shapefile from an attribute table? Creating a new shapefile Start ArcCatalog. Select a folder or folder connection in the Catalog tree. Click the File menu, point to New, then click Shapefile. Click in the Name text box and type a name for the new shapefile. Click the Feature Type drop-down

QGIS: Zoom to selected feature via plugin doesn’t works in first attempt

How do I zoom in on selected features in Qgis? To zoom into a feature, without having to select it, right-click on the feature you want to zoom in, within the attribute table, and select Zoom to feature. What is the quickest way to zoom to an entire single data layer Qgis? 2 Answers zoom

ArcGIS 10.1 Legend – Increase Icon on legend without increase on map

How do I make symbols bigger in Arcgis legend? In Table Of Contents, click the point symbol under the name of the copied layer to open the Symbol Selector dialog box. Adjust the point size in the Symbol Selector dialog box accordingly to display the desired point symbol size in the legend.  How do I

Generate Contour Plugin

How do I generate contours from DEM in Qgis? Create Contours from DEM Go to Raster menu >> Extraction >> Contours. In the Contour window: enter your parameters: eg. 50 meter interval, save to file as a shapefile, geopackage, dxf, etc.   How do I add contour plugin to Qgis? To add the contour lines

How do I work with GRASS regions?

What is grass region? Grasslands are found where there is not enough regular rainfall to support the growth of a forest, but not so little that a desert forms. In fact, grasslands often lie between forests and deserts. Depending on how they’re defined, grasslands account for between 20 and 40 percent of the world’s land

“App” function returns a wrong output format

What is %V in Golang? The verb %v (‘v’ for ‘value’) always formats the argument in its default form, just how Print or Println would show it. The special verb %T (‘T’ for ‘Type’) prints the type of the argument rather than its value. The examples are not exhaustive; see the package comment for all

Getting information from roads API

Can I get traffic data from Google Maps API? Google Maps facilitates APIs to provide access to this data with a paid subscription. Google Maps also make this traffic data publicly available through their web interface, but with limited features and requires further pre-processing. Is Google route API free? You won’t be charged until your

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