Data Visualization and Literacy
Geo Location and Geo Visualization
ZHdK, BA Interaction Desgin | Bits & Atoms III
Contents of the Sessions
Geopositioning of Specific Data in 2D.
Interacting with Data on a Map.
Intro to Datasets from CrowtherLab.
Geopositioning of Specific Data in 3D.
Interacting with Data on a 3D Map.
(Introduction to IR Tracking System and real time GPS tracking ?)
On CrowtherLab
CrowtherLab works with restoration of ecosystems driven by close work with local activists and their data enhanced by machine learning -> where 'exactly' to act in order to increase the potential of recovery of forests and CO2 absortion.
More details on this during the module "Interactive Visualization".
Basics of Geo-Visualization
The map of the Earth and the World Geographic Reference System
Existing Technologies
World Geographic Reference System
Latitude Longitude Globe according to WGRS, ESRI
From Sphere to the Screen
From the spheric view of the Earth how to translate coordinates to a flatenned image? Projecting the of the Earth onto a surrounding geometry which can be flattened "without" distortion -> a cylinder.
Mercator Cylindrical Projection
Miller Cylindrical Projection
Equidistant or Equirectangular Map Projection
This is what we work with: Equirectangular Projection of the Earth
But there are other cool things
World Map Creator lets you explore diverse projection systems also changing the point of view or center of the world
Hands on
If you haven't, download the git repository now.
Exercise A: Loading a Map Image
Open Processing or your favorite code editor capable of compiling processing sketches.
Explore the folder of the downloaded repository and open the sketch:
"loading2DEarthMap.pde".
Places and Geo Coordinates
Exercise B: Visualizing a Point of Interest or GPS Location
Open the sketch: "visualizingOneGPS.pde".
Exercise B.2: Visualizing further Points
Collect GPS Data of few places of interest and visualize them
Exercise C: Loading Multiple Geo Data
Open the sketch: "loadingMultipleGPSData.pde".
Exercise D: Interacting with the Map
Open the sketch: "interactingWithMap.pde".
Home Work
Further Interactions / Micro Interactions with Data or Map: program your own