Combining attributes from multiple point shapefiles using PyQGIS?
Geographic Information SystemsHow do I combine two shapefiles with different attributes? Process Click on the Vector menu, Data Management tools, Merge Shapefiles to One Ensure the correct shapefile type is selected (points, lines, or polygons). Select the folder where the two (or more) shapefiles you want to merge are located using the Browse button. How do
Nested polygons, splitting by smallest to biggest using QGIS
Geographic Information SystemsHow do you draw boundaries in QGIS? To create a new boundary, you need to first create a vector layer. 1> Select Layer > Create Layer > New Shapefile Layer. Use the Add Feature to create polygons. When you draw a polygon, it will prompt you to enter an id which will be stored as
Reproject an aerial layer in QGIS and then open with ArcEngine?
Geographic Information SystemsHow do I Reproject a layer in QGIS? Steps for reprojecting a shapefile: Open QGIS 2.0 desktop. From the menu bar choose ‘Layers’ à ‘Add vector layer’. A dialog box opens, browse to the location of the required shapefile and click ‘Open’. A shapefile will be displayed on the workspace and the name of the
Selecting the minimum point in a polygon
Geographic Information SystemsWhat is the minimum point to have a polygon? A polygon must have a minimum of three sides. How do you find a point inside a polygon? Draw a horizontal line to the right of each point and extend it to infinity. Count the number of times the line intersects with polygon edges. A point
Any “standard” or at least popular API for geospatial data?
Geographic Information SystemsWhat are geospatial data standards? Geospatial standards are technical documents that detail interfaces or encodings. Software developers and data producers use these documents to build open interfaces and encodings into their products and services. What are the 3 types of geospatial data? Vectors and attributes: Descriptive information about a location such as points, lines and
Get state but want country in GeoPy and Nominatim
Geographic Information SystemsHow to get country name from latitude and longitude in Python? Approach: Import the Geopy module. Initialize Nominatim API to get location from the input string. Get location with geolocator. reverse() function. Now extract the data from the location instance. How to find location using latitude and longitude in Python? Use the geolocator. reverse()
Unable to save map layer
Geographic Information SystemsHow do I save a layer in ArcMap? Steps for saving a map layer Right-click the layer name and click Save as Layer File. Type in the name of your new layer file. Optionally choose to save a layer to a previous version of ArcMap using the Save as type drop-down. Click Save. How do
PyQGIS – remove layer from legend
Geographic Information SystemsHow do I remove a layer from a legend in Qgis? Use the [Add group] button to add a legend group. Use the [plus] and [minus] button to add or remove layers. The [Edit] button is used to edit the layer, groupname or title. How do I edit legend items in Qgis? Quote from video:
Where are the address ranges in OpenStreetMap?
Geographic Information SystemsHow do I get OpenStreetMap data? Download Directly from OSM Simply go to www.openstreetmap.org and find the area you would like to download data for. Hit the “Export” button and you will see a screen with the Extent of the download appear. You can customize this download as either the “current extent” or manually select
Converting line shapefile into CSV with nodes and links
Geographic Information SystemsHow do I convert a shapefile to a CSV file? You can convert shapefile in CSV using GIS software also. You just need to open the shapefile as vector layer and save it as CSV. For adding the vector layer tyou need to go to Layer->add vector layer and browse the shapefile. After the right