Open-Harbor/osrm-backend
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Fixing rounding errors by a hack.

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This commit is contained in:
DennisOSRM 2012-02-03 18:39:15 +01:00
parent 8a47c87a8a
commit f1332c7c6a
2 changed files with 10 additions and 3 deletions
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12
DataStructures/NNGrid.h
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@ -172,7 +172,7 @@ public:
resultNode.nodeBasedEdgeNameID = candidate.nameID;
resultNode.weight1 = candidate.weight;
dist = tmpDist;
resultNode.location.lat = round(100000*(y2lat(static_cast<double>(tmp.lat)/100000.)));
resultNode.location.lat = round(100000.*(y2lat(static_cast<double>(tmp.lat)/100000.)));
resultNode.location.lon = tmp.lon;
foundNode = true;
smallestEdge = candidate;
@ -195,7 +195,13 @@ public:
double ratio = std::min(1., LengthOfVector(smallestEdge.startCoord, newEndpoint)/LengthOfVector(smallestEdge.startCoord, smallestEdge.targetCoord) );
assert(ratio >= 0 && ratio <=1);
// INFO("node: " << resultNode.edgeBasedNode << ", orig weight1: " << resultNode.weight1 << ", orig weight2: " << resultNode.weight2);
//Hack to fix rounding errors and wandering via nodes.
if(std::abs(location.lon - resultNode.location.lon) == 1)
resultNode.location.lon = location.lon;
if(std::abs(location.lat - resultNode.location.lat) == 1)
resultNode.location.lat = location.lat;
resultNode.weight1 *= ratio;
if(INT_MAX != resultNode.weight2) {
resultNode.weight2 -= resultNode.weight1;
@ -425,7 +431,7 @@ private:
if(c != a){
const double m = (d-b)/(c-a); // slope
// Projection of (x,y) on line joining (a,b) and (c,d)
p = ((x + (m*y)) + (m*m*a - m*b))/(1 + m*m);
p = ((x + (m*y)) + (m*m*a - m*b))/(1. + m*m);
q = b + m*(p - a);
}
else{

1
Descriptors/JSONDescriptor.h
View File

@ -159,6 +159,7 @@ public:
convertInternalReversedCoordinateToString(rawRoute.segmentEndCoordinates[segmentIdx].startPhantom.location, tmp);
else
convertInternalReversedCoordinateToString(rawRoute.rawViaNodeCoordinates[segmentIdx], tmp);
reply.content += tmp;
reply.content += "]";
}