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LUCENE-7430: Add extra space in the shape bounding box to handle quantization issues.

This commit is contained in:
Karl Wright 2016-10-02 15:43:23 -04:00
parent 3182cd9872
commit 31d07eda18
1 changed files with 9 additions and 3 deletions
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12
lucene/spatial3d/src/java/org/apache/lucene/spatial3d/Geo3DDocValuesField.java
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@ -67,11 +67,17 @@ public class Geo3DDocValuesField extends Field {
private final static double yFactor = 1.0 / inverseYFactor;
private final static double zFactor = 1.0 / inverseZFactor;
// Fudge factor for step adjustments. This is here solely to handle inaccuracies in bounding boxes
// that occur because of quantization. For unknown reasons, the fudge factor needs to be
// 10.0 rather than 1.0. See LUCENE-7430.
private final static double STEP_FUDGE = 10.0;
// These values are the delta between a value and the next value in each specific dimension
private final static double xStep = inverseXFactor;
private final static double yStep = inverseYFactor;
private final static double zStep = inverseZFactor;
private final static double xStep = inverseXFactor * STEP_FUDGE;
private final static double yStep = inverseYFactor * STEP_FUDGE;
private final static double zStep = inverseZFactor * STEP_FUDGE;
/**
* Type for a Geo3DDocValuesField