brian/d3-spring-model
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Refactor / optimize for loop for interpolations

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This commit is contained in:
Pitchaya Boonsarngsuk
2018-01-31 16:05:36 +00:00
parent 28c27df551
commit f6c151a761
2 changed files with 28 additions and 14 deletions
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19
src/interpolation/interpBruteForce.js
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@@ -14,21 +14,26 @@ import {placeNearToNearestNeighbour} from "./interpCommon";
* @param {number} endingIts - for phase 3, how many iterations to refine the
* placement of each interpolated point
*/
export default function(sampleSet, remainderSet, distanceFn) {
export default function(sampleSet, remainderSet, distanceFn, endingIts) {
let sampleSubset = takeSampleFrom(sampleSet, Math.sqrt(sampleSet.length)).sample;
for (let node of remainderSet) {
let nearestSample, minDist,
sampleSubsetDistanceCache = [];
// For each datapoint "node" to be interpolated
for (let i = remainderSet.length-1; i>=0; i--) {
let
node = remainderSet[i],
sampleSubsetDistanceCache = [],
nearestSample, minDist, sample, dist, index;
for (let sample of sampleSet) {
let dist = distanceFn(node, sample);
// For each datapoint "sample" in the sample set
for (let j = sampleSet.length-1; j>=0; j--) {
sample = sampleSet[j];
dist = distanceFn(node, sample);
if (nearestSample === undefined || dist < minDist) {
minDist = dist;
nearestSample = sample;
}
let index = sampleSubset.indexOf(sample);
index = sampleSubset.indexOf(sample);
if (index !== -1)
sampleSubsetDistanceCache[index] = dist;
}