(r1) DuckyInfoVisMilestones < Main

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---++ Ducky's Info Vis Milestones

---+++ Current worries
   * How do I capture clicks through the overlay (the [[http://www.kokogiak.com/gmaps-transparencies.html][map/satellite lens]] uh-oh does things differently).
   * Speed speed speed
   * LD_LIBRARY_PATH / static libraries nonsense

---+++ Ducky's Info Vis Tasks
   * Explore different color bars
   * <strike>Thoroughly understand and document how census bureau data fits together</strike>

   * Develop a simple test suite for PNG manipulation 
   * <strike>Write code to create PNG from one known polygon extracted from shapefile</strike>; overlay on Google Maps
   * <strike>Write code to create PNG from several known polygons extracted from shapefile</strike>; overlay on Google Maps
   * Write code to create PNG from several known polygons, shaded with data from population file; overlay on Google Maps

   * <strike>Given zoom level and map lat/long boundaries, figure out how to tell which polygons are visible</strike> first pass done
      * test better
   * <strike>Write code to retrieve a polygon based on lat/long.</strike>
   * Write code to create PNG from lat/long boundaries at default zoom level
   * Figure out how to aggregate data from multiple polygons 
   * Write code to aggregate data
   * Modify code to create PNG from lat/long/zoom data
   * Overlay images dynamically on Google Maps

   * (aggressive) Add sliders to allow changing the parameters of the image (e.g transparency, hue)
   * (aggressive) Add radio buttons to change data sets
   * (aggressive) Allow user to choose from several different years of data
   * (extremely aggressive) allow semi arbitrary data to be mapped 
      * design with XML format
      * design interactive 
      * <strike>find information about Mike Beckerle's data description language</strike>
 

---+++ Proofs of concept:
   * [[http://www.webfoot.com/gmaps/test.html][simple walking duck]]
   * [[http://www.webfoot.com/gmaps/test4.html][two overlays]]
   * [[http://www.kokogiak.com/gmaps-transparencies.html][overlay transparent Google Maps over Google satellite images]] 



---+++ Promised milestones

   * <strike>4 November: Proposal finished</strike> %Y%
   * <strike>13 November: One PNG file generated with one polygon extracted from dataset, requiring:
      * extracting polygons with the Shapefile C library
      * extracting the appropriate demographic data from the dataset with the Shapefile C library and the data files
      * associating polygon <->demographic data
      * understanding the gd library well enough to generate a PNG with a transparent polygon</strike>
   * 20 November: Functional panning, perhaps limited to one US state and perhaps slow, requiring:
      * determining which polygons will be visible given lat/long bounds
      * iterating through visible polygons, drawing each
      * plugging overlays into the Google Maps API
   * 4 December: Functional zooming
      * determining which polygons will be visible given lat/long bounds and zoom level
      * aggregating lower-level data (note that I do not think this is trivial)
      * killing small code gremlins
   * 11 December: Performance tuning and bug fixes done, probably requiring finishing:
      * pre-processing census bureau data into a form that is easier to extract quickly
      * prefetching of neighboring overlays
      * caching previously-used overlays
      * killing large code gremlins
   * 16 December: Status update due, requiring
      * bibliography done
      * writing done
   * 19 December: Final due date, requiring
      * learning <nop>LaTeX
      * coercing text into journal format
      * killing <nop>LaTeX gremlins


 
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Topic revision: r1 - 2005-11-20 - DuckySherwood
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