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You want to plot 1000 random line segments efficiently with different colors using LineCollection. Which approach is best?

hard📝 Application Q15 of 15
Matplotlib - Performance and Large Data
You want to plot 1000 random line segments efficiently with different colors using LineCollection. Which approach is best?
AUse a single <code>LineCollection</code> with a list of line segments and a matching list of colors.
BPlot lines one by one inside a loop with <code>ax.plot()</code>.
CUse <code>PolyCollection</code> instead of <code>LineCollection</code> for lines.
DCreate 1000 separate <code>plot()</code> calls with individual colors.
Step-by-Step Solution
Solution:
  1. Step 1: Understand performance needs

    Plotting 1000 lines individually is slow and inefficient.
  2. Step 2: Use LineCollection for speed

    LineCollection groups all lines into one object, speeding up rendering.
  3. Step 3: Assign colors per line

    LineCollection accepts a list of colors matching the lines, allowing different colors efficiently.
  4. Final Answer:

    Use a single LineCollection with a list of line segments and a matching list of colors. -> Option A
  5. Quick Check:

    LineCollection + color list = efficient plotting [OK]
Quick Trick: Group lines and colors in LineCollection for speed [OK]
Common Mistakes:
  • Using PolyCollection for lines
  • Plotting lines one by one causing slow performance
  • Ignoring color list for multiple colors

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