Difference between revisions of "QGIS Tips"

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=Tips and Tricks=
 
=Tips and Tricks=
 
# [[QGIS_Relief_Shading | Relief Shading]]
 
# [[QGIS_Relief_Shading | Relief Shading]]
# [[QGIS_OpenLayers | Adding Google / Bing Aerials]]
+
# [[QGIS_Aerial_Imagery | Adding Google / Bing Aerials]]
 
# [[QGIS_Convert_Lines_to_Points | Convert Lines to Points]]
 
# [[QGIS_Convert_Lines_to_Points | Convert Lines to Points]]
 
# [[QGIS_Extract_Ground_Elevation | Assigning Elevation to Points from a DEM Dataset]]  
 
# [[QGIS_Extract_Ground_Elevation | Assigning Elevation to Points from a DEM Dataset]]  

Revision as of 06:02, 26 February 2019

Introduction

This page contains a brief introduction to the Quantum GIS software (QGIS). QGIS is a Free Open Source Software which for more information please see the QGIS website www.qgis.org/. The basics of QGIS, particularly with respect to TUFLOW modelling are described below, each of these has a separate page. If you have any suggestions to be included in these pages, please add them to the discussion page. Please add QGIS Suggestions Here!.

QGIS uses ArcGIS file formats for vector data, with data stored in shapefiles (.shp). QGIS, however, is able to read in MapInfo files directly. In the shapefiles, points, lines and regions are stored in separate files.

Basics

In this section are some basic GIS functions that are regularly used in creating TUFLOW models in QGIS.

  1. Generic QGIS new user tutorials
  2. Setting Project Projection
  3. Editing a Shapes Layer
  4. Editing attributes with Table Manager Plugin
  5. Importing a Grid
  6. Create a grid from points

Tips and Tricks

  1. Relief Shading
  2. Adding Google / Bing Aerials
  3. Convert Lines to Points
  4. Assigning Elevation to Points from a DEM Dataset
  5. Rotate Label to Line
  6. Export Raster to .asc for TUFLOW input
  7. Plot grid elevations using profile tool
  8. Update a Column
  9. Extracting Cross Sections from a DEM into TUFLOW .csv format
  10. Thematic mapping (Symbology)
  11. Creating a Google Earth KMZ file
  12. Change Attribute Data Type
  13. Installation of QGIS Nightly Build

Useful QGIS plugins

  1. TUFLOW QGIS plugin The TUFLOW QGIS plugin has been created to help automate model development tasks, e.g.
  2. Crayfish 2D Result Viewer: The Crayfish QGIS Plugin developed by Lutra Consulting provides a powerful 2D result viewing platform for TUFLOW.
  3. Other Useful QGIS plugins for TUFLOW modelling