Week 8 Figure Extraction - STATUS SUMMARY

Last Updated: October 23, 2025

✅ COMPLETED (24/31 figures)

All foundational figures are in place:

• Title slide & historical (6/6) ✅
• When to use a map (2/2) ✅
• Projections (8/8) ✅
• Taxonomy (4/4) ✅
• Urban viz bridge (1/1) ✅
• Duplicate solution figures (3/3) ✅

⚠️ STILL NEEDED (7 figures)

Pitfall 1: Normalization (2 figures)

• twitter-raw-counts.png - Number of Twitter Users (bad example)
  • Source: PPTX Slides 56-59
  • Possibly image63.png or image76.png (check these)
• twitter-percentage.png - Percentage of Twitter Users (good example)
  • Source: PPTX Slides 56-59
  • Possibly image63.png or image76.png (check these)

Pitfall 2: Classification (1 figure)

• binning-comparison.png - Composite showing Equal Interval, Quantile, Natural Breaks
  • Source: PPTX Slides 213-219
  • NOTE: This needs to be manually created as a side-by-side composite

Pitfall 3: Color (3 figures)

• rainbow-colorscale-bad.png - Map with rainbow scale
  • Source: PPTX Slides 221-222
• good-sequential-scale.png - Map with sequential scale
  • Source: PPTX Slides 221-222
• good-diverging-scale.png - Map with diverging scale
  • Source: PPTX Slides 221-222

Pitfall 4: Geography (1 figure)

• election-2016-red.png - 2016 Election looking “all red”
  • Source: PPTX Slides 66-67

📋 YOUR TODO LIST

1. Check mystery images:

   cd ~/github/ctsilva.github.io/2025-InfoVis-CSE/slides/figs/week8/
   open image63.png  # Check if this is one of the Twitter maps
   open image76.png  # Check if this is one of the Twitter maps
   

2. Extract remaining PPTX images (if mystery images aren’t the right ones):
   • Open 7-Visualizing Geographical Data.pptx
   • Manually screenshot or extract from slides:
     • 56-59 (Twitter normalization)
     • 66-67 (2016 Election)
     • 213-219 (Binning methods - need to composite)
     • 221-222 (Color scales)
3. Create composite for binning-comparison.png:
   • Use image editing tool to combine 3 maps side-by-side
   • Or use screenshot of slide showing all three

4. Rename and place files in figs/week8/

5. Re-render slides:

   cd ~/github/ctsilva.github.io/2025-InfoVis-CSE/slides/
   quarto render week8-geovis-2d-maps.qmd
   

📊 PROGRESS: 77% Complete (24/31)

Slides will render but 7 images will show as broken until completed.