⚡ Optimize redundant type casting in rasterizer loop#48
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Refactored `rasterize` to combine validation and processing into a single loop. Ensured `class_id` is cast to an integer only once per geometry. This optimization reduces redundant iterations and type casting, and improves support for single-use iterators. Co-authored-by: tahamukhtar20 <91777330+tahamukhtar20@users.noreply.github.com>
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💡 What: Refactored the
rasterizefunction to perform validation and geometry processing in a single pass over the input geometries, casting eachclass_idto an integer exactly once.🎯 Why: The previous implementation performed two passes over the geometries (one for range validation and one for processing), and redundantly called
int(cid)in both. Merging these into a single loop eliminates the redundant iteration and multiple type casts. Additionally, this change makes the function compatible with single-use iterators, which would have been exhausted by the initial validation pass in the old implementation.📊 Measured Improvement: In micro-benchmarks with 10,000 geometries, the overhead of the Python loop and type casting is relatively small compared to the core Rust rasterization logic. While the measurable speedup on total execution time is minimal, the code is now more efficient and robust.
PR created automatically by Jules for task 14264252399920732896 started by @tahamukhtar20