Improve contouring locator performance.
Use the number of input points as the estimated number of points when setting up the point locator for the contour filters, rather than the cell-based estimate used previously. On a wavelet data set with 1M points and 1M hex cells, the locator ended up holding 1.5M points -- far exceeding the estimated 62K points. This caused bucket sizes to grow to ~120 points per bucket in cases, while the locator only expects around 3 points per bucket. This resulted in a ~10% speedup of the filter updates. Change-Id: I3fde70306b046d9f3c79a3fbc4cfbd5c3a230028
Showing with 4 additions and 2 deletions