Milton Mamani gave an update on recent developments in Roassal, a tool for visualizing data created by Alexandre Bergel. He demonstrated new features like animations, charts, layouts, and spatial data structures like quad trees and R-trees. Performance improvements are needed like using the GPU for more frames per second. He is looking to improve documentation and close issues before transitioning to another role. As a software engineer on the Rmod team at Inria, he can be contacted for contract work.

1. oassal3 updates:
To infinity and beyond
1 September 2023
Lyon
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Milton Mamani

2. Who I am?
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3. Name: Milton Mamani Torres
Occupation: Software
Engineer in
Rmod team, Inria
Email: akevalion@gmail.com
Country: Bolivia
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4. 4

5. What is Roassal?
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6. A tool to visualize data
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7. Created by:
Alexandre
Bergel
http://bergel.eu/
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8. 8

9. 9
Based on Cairo vector graphics

10. What is data visualization?
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11. Data
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12. Sorted
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13. Arranged
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14. Explained
with a story
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15. Data can have many presentations
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16. Cristiano
Ronaldo
Lionel
Messi
Claudio
Bravo
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A goalkeeper
A striker

17. DEMO
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18. Noises and Animations
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19. 19

20. 20

21. 21

22. 22

23. 23

24. 24

25. Charts
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26. You can(not) plot
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27. You can(not) plot
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28. You can(not) plot
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29. You can(not) plot
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30. You can(not) plot
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31. Density Plot
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32. Density Plot
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33. Density Plot
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34. Box Plot
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35. Box Plot
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36. Box Plot
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37. Box Plot
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38. Violin Plot
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39. One plot
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40. 40
Combine plot

41. 41
Combine plot

42. Cluster plot
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43. Cluster plot
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44. Horizontal plots
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45. 45
Many thanks to Kevin and Pol

46. Layouts
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47. More documentation
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• More class comments
• More examples
https://graphviz.org/

48. Layout studio
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49. Open Street Maps(OSM)
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50. Selection in Roassal
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51. Roassal + Bloc
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52. Escalation problem
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53. 53
The Problem
144K

54. 54
The Problem

55. Why?
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56. Since I was a kid, my
biggest dream has been to
have more FPS in Roassal
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57. 57
So I put some RGB in Roassal

58. Trees
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59. Quad Tree
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60. Quad Tree
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61. The Problem: Overlapping
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62. The Problem: Overlapping
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63. 9
4
7
16
13
15
19
9
4
7
16
13
10 15
19
9
4
7
15
13
10 14
16
19
+ 10 + 14
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AVL

64. Rotations
Left
Left
Left
Right
Right
Right
Right
Left
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65. RTree in Roassal
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66. RTree in Roassal
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67. RTree in Roassal
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68. RTree in Roassal
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69. RTree in Roassal
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When adding Shapes: Tree vs List

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Drawing one Frame: Tree vs List

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Mouse move: Tree vs List

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Mouse move: Tree vs List

74. Final result
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75. TODO
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Charts.
Dirty areas.
More FPS (GPU, Cores, Caches)
Roassal + Bloc
Close roassal issues
Prepare Roassal for next
engineer

76. Name: Milton Mamani Torres
Country: Bolivia
Occupation: Software Engineer in
Rmod team, Inria
for 2 years, so contact(contract) me.
Do it now!
Github: https://github.com/akevalion/
MyAnimations
Email: akevalion@gmail.com
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