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Geographic Information System for Design (GIS4Design)

  • Introduction

Concepts

  • 1. What is Geographic Information System (GIS)
  • 2. Understanding Coordinate Reference System/ Spatial Reference System used in GIS

Tutorials

  • 1. Site Analysis- University of Pennsylvania
    • 1.1. Location Map
    • 1.2. Projecting the Maps: From Lat/Lon to Metres
    • 1.3. Land Use Map
    • 1.4. Filtering and Inquiries Attributes of Vector Layers
    • 1.5. Search for Surface Temperature Data
    • 1.6. Import Surface Temperature Data into QGIS
    • 1.7. Search for Digital Elevation Model (DEM) - Topography of the Site
    • 1.8. Search for Building Footprint
    • 1.9. Search for LiDAR information - Assuming the Building Footprint Data has no Height Information
    • 1.10. Import Raster Layer (DEM & Surface Temperature) into Rhino
    • 1.11. Import Vector (Shapefiles) into Rhino
    • 1.12. Extrude Building Footprint Based on DEM and LiDAR Point Cloud
  • 2. Site Analysis - National University of Singapore
    • 2.1. Location Map
    • 2.2. Site Map
    • 2.3. Land Use Map
  • 3. Existing Conditions Base Model of Princeton Campus
    • 3.2. Gather all the map onto a canvas
    • 3.3. Estimate Tree Heights with Impervious Surface Layer and LAS

How-Tos

  • 1. Loading Google Map as Base Map
  • 2. Search for Open Geospatial Data
    • 2.3. Singapore Master Plan
    • 2.4. Obtain Philadelphia Land Use
    • 2.5. New Jersey Geographic Information Network
  • 3. Import Vector Layers into QGIS
  • 4. Setting CRS, GRS or PCS
  • 5. Zoom to Specified Long/Lat with CoordTransform Plugin
  • 6. Merge Multiple Features Using Dissolve
  • 7. Save a Feature Layer
  • 8. Change the Colour and Opacity of a Polygon Feature Layer
  • 9. Export Map as Image
  • 10. Drawing in QGIS
  • 11. Create Attribute
  • 12. Delete Attribute
  • 13. Turn on Snapping
  • 14. Change the Fill of a Polyline Feature
  • 15. Label Features
  • 16. Vector Tools
  • 17. Categorise Polygon Feature Layer
  • 18. Layout Manager
  • 19. Clip Raster
  • 20. Zoom to Specific Lat/Lon
  • 21. Adjust Transparency of Google Map Layer
  • 22. Draw Polygon with Digitizing Tool
  • 23. Calculate Centroid
  • 24. Draw a Circle/Square with Buffer
  • 25. Turn off Invalid Features Filtering Option for the Clip Operation
  • 26. Import Raster Layer
  • 27. Categorise Raster Image Layer
  • 28. Reprojecting Files
  • 29. Polygonise Raster Image
  • 30. Export Raster to XYZ file
  • 31. Merge Point Clouds in Cloud Compare
  • 32. OSM-related Plugins and Functions
  • 33. Developing QGIS Plugin
  • 34. Python in QGIS
  • Repository
  • Open issue
  • .md

OSM-related Plugins and Functions

Contents

  • 32.1. Install OSM Place Search for easy search
  • 32.2. Install OSM Download

32. OSM-related Plugins and Functions#

32.1. Install OSM Place Search for easy search#

  1. Go to Plugins -> Manage and Install Plugins

  2. In the window search for “osm place search”. Install the plugin

  3. Now you will be able to see a magnifying glass icon at the top toolbar (the vector toolbar). It can be beside the python icon.

  4. Once you click on it, it will open a search box on the left window where you can search for the location you want to zoom into.

    ../../_images/princeton1.png

32.2. Install OSM Download#

  1. Go to Plugins -> Manage and Install Plugins

  2. In the window search for “osmdownloader”. Install the plugin

  3. Now you will be able to see a hand and rectangle icon at the top toolbar.

    ../../_images/princeton5.png
  4. Once you click on it, choose the area of your interest and it will automatically grab the related data from OSM. Do not automatically load the layers into canvas. Do a manual import to control the visualization.

    ../../_images/princeton6.png
  5. Import the osm layer into the file. Go to Layer -> Add Layer -> Add Vector Layer. Choose the OSM file. Import the data. The data will be imported as multiparts layer.

    • Remember to go to Vector -> Geometry Tools -> Multipart to Singleparts for each multiparts layer so that you can investigate the attributes.

    ../../_images/princeton7.png

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31. Merge Point Clouds in Cloud Compare

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33. Developing QGIS Plugin

Contents
  • 32.1. Install OSM Place Search for easy search
  • 32.2. Install OSM Download

By Kian Wee Chen

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