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Fix the POI search algorithm

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(At least so, that it does not trigger the rtree assert. The whole RectC logic
has to be fixed to properly handle poles/dateline "overflows")
This commit is contained in:
Martin Tůma
2020-12-03 21:12:41 +01:00
parent 9e03d85b7a
commit 547d7a5f23
3 changed files with 39 additions and 20 deletions
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17
src/common/rectc.cpp
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@ -1,3 +1,4 @@
#include <cmath>
#include "wgs84.h"
#include "rectc.h"
@ -6,6 +7,16 @@
#define MIN_LON deg2rad(-180.0)
#define MAX_LON deg2rad(180.0)
static inline double WLON(double lon)
{
return remainder(lon, 360.0);
}
static inline double LLAT(double lat)
{
return (lat < 0.0) ? qMax(lat, -90.0) : qMin(lat, 90.0);
}
RectC::RectC(const Coordinates &center, double radius)
{
double radDist = radius / WGS84_RADIUS;
@ -151,6 +162,12 @@ RectC RectC::united(const Coordinates &c) const
return RectC(Coordinates(l, t), Coordinates(r, b));
}
RectC RectC::adjusted(double lon1, double lat1, double lon2, double lat2) const
{
return RectC(Coordinates(WLON(_tl.lon() + lon1), LLAT(_tl.lat() + lat1)),
Coordinates(WLON(_br.lon() + lon2), LLAT(_br.lat() + lat2)));
}
#ifndef QT_NO_DEBUG
QDebug operator<<(QDebug dbg, const RectC &rect)
{

1
src/common/rectc.h
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@ -40,6 +40,7 @@ public:
RectC &operator&=(const RectC &r) {*this = *this & r; return *this;}
RectC united(const Coordinates &c) const;
RectC adjusted(double lon1, double lat1, double lon2, double lat2) const;
bool intersects(const RectC &r) const
{return (right() >= r.left() && bottom() <= r.top() && left() <= r.right()