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This article mainly introduces how to use QGIS to edit vector data in GIS development. It is very detailed and has certain reference value. Friends who are interested must finish reading it.

Map development or display class development, involving administrative divisions, roads and other spatial geographic information, for non-professional GIS personnel, generally go to the Internet to search for the corresponding data, directly bring it to use, the required format is GEOJSON, which is also relatively general, easy to use data, if you bring an ESRI shapefile, you also need to process the class library, or provide a variety of conversion websites online to convert the data into GEOJSON. Professional GIS personnel are generally able to deal with spatial data to a certain extent, and the commonly used GIS tool is Arcgis software, which supports many types of spatial data and has powerful functions, but the installation and occupation of Arcgis software is also very large, and simple spatial data processing does not need many functions. QGIS is an open source data processing software, supports Windows\ MAC\ Linux operating system installation, the software volume of more than 200m, relatively small, support a variety of vector data loading processing, convenient conversion between formats. Open an administrative division data:

Enable the Edit data button:

Right-click the data and open the property sheet:

Edit the attribute data of the vector and modify the values in it:

Spatial data editing menu, if you just change the attribute data, if you have GEOJSON, you only need to change the value among them. If you want to add point, line and surface data to the data, you need to edit the space.

For example, you can merge the selected two parts of spatial data, and after the data is combined, the two vector objects become one, and the attributes are merged:

Export the selected spatial data:

Spatial data buffering, clipping and other operations:

QGIS also has toolbox tools, similar to Arcgis's, which can perform a series of spatial analysis operations, which can be used in practice. The above is all the contents of the article "how to use QGIS to edit vector data in GIS development". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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