Open-Harbor/osrm-backend
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 3 Wiki Activity

fixes #731, perpendicular projection to nearest location

Browse Source
This commit is contained in:
Dennis Luxen
2013-12-16 17:36:36 +01:00
parent 4b46d07380
commit 96aff57275
3 changed files with 26 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
DataStructures/EdgeBasedNode.h
+6 -4
View File
@@ -4,6 +4,8 @@
#include <cmath>
#include "Coordinate.h"
#include "../Util/MercatorUtil.h"
#include "../typedefs.h"
struct EdgeBasedNode {
@@ -29,11 +31,11 @@ struct EdgeBasedNode {
return std::numeric_limits<double>::max();
}
const double x = inputPoint.lat/COORDINATE_PRECISION;
const double x = lat2y(inputPoint.lat/COORDINATE_PRECISION);
const double y = inputPoint.lon/COORDINATE_PRECISION;
const double a = lat1/COORDINATE_PRECISION;
const double a = lat2y(lat1/COORDINATE_PRECISION);
const double b = lon1/COORDINATE_PRECISION;
const double c = lat2/COORDINATE_PRECISION;
const double c = lat2y(lat2/COORDINATE_PRECISION);
const double d = lon2/COORDINATE_PRECISION;
double p,q,mX,nY;
if(std::fabs(a-c) > std::numeric_limits<double>::epsilon() ){
@@ -66,7 +68,7 @@ struct EdgeBasedNode {
// return std::sqrt(((d - y)*(d - y) + (c - x)*(c - x)));
}
// point lies in between
nearest_location.lat = p*COORDINATE_PRECISION;
nearest_location.lat = y2lat(p)*COORDINATE_PRECISION;
nearest_location.lon = q*COORDINATE_PRECISION;
// return std::sqrt((p-x)*(p-x) + (q-y)*(q-y));
return (p-x)*(p-x) + (q-y)*(q-y);