← Introduction to GIS Software: QGIS

In-class Excercises

Part 1: Styling with QGIS

  1. Download this data.
  2. Open the Council District Boundaries in QGIS.
  3. Open the Citibike Stations in QGIS.
  4. Experiment with styling both polygons and points in QGIS. Label the council districts.
  5. Create a PDF of your map using Print Composer.

Part 2: Projections

  1. Go to tagis.dep.wv.gov/convert/.
  2. Input latitude and longitude in the first input box and select an output projection (the second dropdown).
  3. Experiment with other projections, you can also click on the map to input coordinates.

Part 3: Projections in QGIS

  1. Open the Council District Boundaries in QGIS.
  2. Open the NYPD Motor Vehicle Collisions CSV in QGIS.
  3. Under Project > Project Properties, turn off "on the fly" CRS transformation.
  4. Zoom in and out on the map view, and the data should no longer overlap.
  5. Right click on the NYPD Motor Vehicle Collisions layer, go to Save As..., and set the CRS (projection) to 2263 and add this data to your map view.
  6. What happens now if you turn "on the fly" CRS transformation off?