QGIS Convert Lines to Points

Introduction

There are a number of layers in TUFLOW, for example breaklines, which use both line and point inputs. This page describes the method for converting the vertices along a line to a separate point file. To perform this operation a plugin is used. The plugin is in the repository and is called MMQGIS, for more information on this plugin please see http://michaelminn.com/linux/mmqgis/.

Method

1. Ensure that the plugin has been loaded and that the line file is open.
2. From the menu select Plugins >> mmqgis >> Modify >> Convert Geometry Type.

3. Set the following:
   
   • The source layer to be the line file you wish to convert
   • The new geometry type to Nodes
   • The output file
   The plugin will create a new point file which contains all vertices along the line. If you wish to create intermediate points along the line you will need to use an alternate plugin. A plugin called Profile from Line appears to do this.