InfoVis para la Web: Teoria, Herramientas y Ejemplos.

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InfoVis para la Web: Teoria, Herramientas y Ejemplos.

  1. 1. InfoVis para la WebTeoría, Herramientas y Ejemplos Nicolas Garcia Belmonte - Mayo 2012
  2. 2. Uso estándares web para crear visualizaciones de datos. @philogb
  3. 3. Soy el autor de dos frameworks de visualización en JavaScript PhiloGL JavaScript InfoVis Toolkit
  4. 4. El Problema
  5. 5. @philogb - Stanford ACM Tech Talks
  6. 6. Ojalá estuvierapreparado para crear visualizaciones!
  7. 7. Teoría
  8. 8. Fundamental Principles of Analytical Design (Tufte)1 - Comparisons2 - Causality, mechanism, structure, explanation3 - Multivariate analysis4 - Integration of evidence5 - Documentation6 - Content counts most of all Source: Edward Tufte - Beautiful Evidence
  9. 9. 1 - Show comparisons, contrasts, differences.
  10. 10. Source: Randall Munroe - http://xkcd.com/
  11. 11. Source: Randall Munroe - http://xkcd.com/
  12. 12. Lie Factor“The representation of numbers, as physically measured on the surface of the graphic itself, should be directly proportional to the quantities represented.” Source: Tufte 1991
  13. 13. Lie Factor1985: the line representing 27.5 m/g is 5.3 inches long1978: the line representing 18.0 m/g is 0.6 inches long Lie Factor: 783 / 53 = 14.8! Source: The New York Times
  14. 14. Sometimes it’s useful to emphasize something.
  15. 15. Source: Semiology ofGraphics - Jacques Bertin
  16. 16. Charles Minard’s data-map describes the successive lossesin men of the French army during the French invasion of Russia in 1812 Source: Edward Tufte - Beautiful Evidence
  17. 17. 3 - Show multivariate data; that is, show more than 1 or 2 variables.
  18. 18. Channel Ranking vs. Data TypeQuantitative Ordinal Nominal Position Position Position Length Density Hue Angle Saturation Texture Slope Hue Connection Area Texture Containment Volume Connection Density Density Containment Saturation Saturation Length Shape Hue Angle Length Texture Slope Angle Connection Area Slope Containment Volume Area Shape Shape VolumeSource: Tamara Munzner. Chapter 27, p 675-707, of Fundamentals of Graphics, Third Edition, by Peter Shirley et al. AK Peters, 2009
  19. 19. Maps for height, hair color and cephalic index distribution Source: Semiology of Graphics - Jacques Bertin
  20. 20. Map for height, hair color and cephalic index distribution Source: Semiology of Graphics - Jacques Bertin
  21. 21. Source: Reddit.com
  22. 22. 4 - Completely integrate words, numbers, images, diagrams.
  23. 23. Source:Vancouver Map
  24. 24. Source: Carmel Map
  25. 25. Source: Zurich Map
  26. 26. Source: The Hague Map
  27. 27. Source: Paris Bus Map
  28. 28. 5 - Thoroughly describe the evidence. Provide a detailedtitle, indicate the authors and sponsors, document the data sources, show complete measurement scales, point out relevant issues.
  29. 29. Source: Beautiful Evidence - Edward Tufte
  30. 30. 6 - Analytical presentations ultimately stand or falldepending on the quality, relevance and integrity of their content.
  31. 31. Source: Wikipedia
  32. 32. Other Useful Principles 6 - Interactivity 7 - Personalization / Identification 8 - Aesthetic value
  33. 33. Herramientas
  34. 34. JavaScript InfoVis Toolkit http://thejit.org/
  35. 35. JavaScript InfoVis Toolkit A Hands-On Toolkit • The White House • Mozilla • Google • The Guardian • Al-Jazeera http://thejit.org/
  36. 36. PhiloGL• Framework de visualización en WebGL• Maneja muchos datos ( > 100K elems )• Usa JavaScript http://senchalabs.org/philogl/ Model courtesy of Nicolas Kassis - McGill Univ.
  37. 37. Ejemploshttp://senchalabs.org/philogl/
  38. 38.   //Create application  PhiloGL(canvasId, {    program: {      from: uris,      vs: shader.vs.glsl,      fs: shader.fs.glsl    },    camera: {      position: {        x: 0, y: 0, z: -50      }    },    textures: {      src: [arroway.jpg, earth.jpg]    },    events: {      onDragMove: function(e) {        //do things...      },      onMouseWheel: function(e) {        //do things...      }    },    onError: function() {      alert("There was an error creating the app.");    },    onLoad: function(app) {      /* Do things here */    }  });
  39. 39. Más Ejemplos http://senchalabs.org/philogl/
  40. 40. Gracias!@philogbhttp://philogb.github.com/

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