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Fix: point to line segment distance can be NaN. 

Change-Id: I7db6bfea925a0eda82bfb1f7b5e1110b193dabdb
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Keisuke Kuroyanagi 2014-03-07 13:03:34 +09:00
parent 3339224813
commit a1e0ef4836
1 changed files with 4 additions and 0 deletions
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4
native/jni/src/suggest/core/layout/proximity_info_utils.h
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@ -100,6 +100,10 @@ class ProximityInfoUtils {
const float dotProduct = ray1x * ray2x + ray1y * ray2y; const float dotProduct = ray1x * ray2x + ray1y * ray2y;
const float lineLengthSqr = GeometryUtils::SQUARE_FLOAT(ray2x) const float lineLengthSqr = GeometryUtils::SQUARE_FLOAT(ray2x)
+ GeometryUtils::SQUARE_FLOAT(ray2y); + GeometryUtils::SQUARE_FLOAT(ray2y);
if (lineLengthSqr <= 0.0f) {
// Return point to the point distance.
return getSquaredDistanceFloat(x, y, x1, y1);
}
const float projectionLengthSqr = dotProduct / lineLengthSqr; const float projectionLengthSqr = dotProduct / lineLengthSqr;
float projectionX; float projectionX;