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Mastering QGIS

You're reading from   Mastering QGIS Go beyond the basics and unleash the full power of QGIS with practical, step-by-step examples

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Product type Paperback
Published in Mar 2015
Publisher
ISBN-13 9781784398682
Length 420 pages
Edition 1st Edition
Tools
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Toc

Table of Contents (12) Chapters Close

Preface 1. A Refreshing Look at QGIS FREE CHAPTER 2. Creating Spatial Databases 3. Styling Raster and Vector Data 4. Preparing Vector Data for Processing 5. Preparing Raster Data for Processing 6. Advanced Data Creation and Editing 7. The Processing Toolbox 8. Automating Workflows with the Graphical Modeler 9. Creating QGIS Plugins with PyQGIS and Problem Solving 10. PyQGIS Scripting Index

Merging shapefiles

The Merge Shapefiles to One tool merges (that is, combines) multiple input shapefiles to a new shapefile. The input shapefiles must be in a common coordinate reference system and should contain common attributes. For example, vector data is often provided in tiles or by political jurisdiction such as counties or states. In these cases, the data may need to be merged to form a seamless layer covering the study area. The Merge Shapefiles to One tool that can be found by navigating to Vector | Data Management Tools will combine them.

Merging shapefiles

In the Merge shapefiles dialog, you have the option to choose whether you wish to merge all shapefiles in a folder or pick individual shapefiles to merge.

  1. Depending on how your shapefiles are stored, you can do either of the following:
    • Keep Select by layers in the folder unchecked to merge all shapefiles in a directory
    • Check Select by layers in the folder to select individual files to merge
  2. If the previous option is enabled, choose the shapefile...
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