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Added support for polar stereographic projection

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closes #181
This commit is contained in:
Martin Tůma 2019-01-08 21:42:28 +01:00
parent edb80dd11f
commit fec5780da2
14 changed files with 377 additions and 74 deletions
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7
gpxsee.pro
View File

@ -148,7 +148,8 @@ HEADERS += src/common/config.h \
src/data/oziparsers.h \
src/data/locparser.h \
src/data/slfparser.h \
src/data/dem.h
src/data/dem.h \
src/map/polarstereographic.h
SOURCES += src/main.cpp \
src/common/coordinates.cpp \
src/common/rectc.cpp \
@ -257,7 +258,9 @@ SOURCES += src/main.cpp \
src/data/oziparsers.cpp \
src/data/locparser.cpp \
src/data/slfparser.cpp \
src/data/dem.cpp
src/data/dem.cpp \
src/map/polarstereographic.cpp \
src/map/rectd.cpp
RESOURCES += gpxsee.qrc
TRANSLATIONS = lang/gpxsee_en.ts \
lang/gpxsee_cs.ts \

1
pkg/csv/pcs.csv
View File

@ -859,6 +859,7 @@ RT90 2.5 gon V,3021,4124,19929,9001,9807,4530,8801,0,9110,8802,15.48298,9110,880
RT90 0 gon,3022,4124,17336,9001,9807,4530,8801,0,9110,8802,18.03298,9110,8805,1,9201,8806,1500000,9001,8807,0,9001,,,,,,
RT90 2.5 gon O,3023,4124,17337,9001,9807,4530,8801,0,9110,8802,20.18298,9110,8805,1,9201,8806,1500000,9001,8807,0,9001,,,,,,
RT90 5 gon O,3024,4124,17338,9001,9807,4530,8801,0,9110,8802,22.33298,9110,8805,1,9201,8806,1500000,9001,8807,0,9001,,,,,,
WGS 84 / Antarctic Polar Stereographic,3031,4326,19992,9001,9829,4490,8806,0,9001,8807,0,9001,8832,-71,9102,8833,0,9102,,,,,,,,,
WGS 84 / Australian Antarctic Lambert,3033,4326,19994,9001,9802,4400,8821,-50,9110,8822,70,9110,8823,-68.3,9110,8824,-74.3,9110,8826,6000000,9001,8827,6000000,9001,,,
ETRS89 / LCC Europe,3034,4258,19985,9001,9802,4500,8821,52,9102,8822,10,9102,8823,35,9102,8824,65,9102,8826,4000000,9001,8827,2800000,9001,,,
ETRS89 / LAEA Europe,3035,4258,19986,9001,9820,4532,8801,52,9102,8802,10,9102,8806,4321000,9001,8807,3210000,9001,,,,,,,,,

Can't render this file because it is too large.

1
src/map/coordinatesystem.cpp
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@ -18,6 +18,7 @@ CoordinateSystem::CoordinateSystem(int code)
case 4467:
case 4469:
case 4470:
case 4490:
case 4495:
case 4496:
case 4497:

103
src/map/geotiff.cpp
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@ -3,58 +3,60 @@
#include "geotiff.h"
#define TIFF_DOUBLE 12
#define TIFF_SHORT 3
#define TIFF_LONG 4
#define TIFF_DOUBLE 12
#define TIFF_SHORT 3
#define TIFF_LONG 4
#define ModelPixelScaleTag 33550
#define ModelTiepointTag 33922
#define ModelTransformationTag 34264
#define GeoKeyDirectoryTag 34735
#define GeoDoubleParamsTag 34736
#define ModelPixelScaleTag 33550
#define ModelTiepointTag 33922
#define ModelTransformationTag 34264
#define GeoKeyDirectoryTag 34735
#define GeoDoubleParamsTag 34736
#define GTModelTypeGeoKey 1024
#define GTRasterTypeGeoKey 1025
#define GeographicTypeGeoKey 2048
#define GeogGeodeticDatumGeoKey 2050
#define GeogPrimeMeridianGeoKey 2051
#define GeogAngularUnitsGeoKey 2054
#define GeogEllipsoidGeoKey 2056
#define GeogAzimuthUnitsGeoKey 2060
#define ProjectedCSTypeGeoKey 3072
#define ProjectionGeoKey 3074
#define ProjCoordTransGeoKey 3075
#define ProjLinearUnitsGeoKey 3076
#define ProjStdParallel1GeoKey 3078
#define ProjStdParallel2GeoKey 3079
#define ProjNatOriginLongGeoKey 3080
#define ProjNatOriginLatGeoKey 3081
#define ProjFalseEastingGeoKey 3082
#define ProjFalseNorthingGeoKey 3083
#define ProjFalseOriginLongGeoKey 3084
#define ProjFalseOriginLatGeoKey 3085
#define ProjFalseOriginEastingGeoKey 3086
#define ProjFalseOriginNorthingGeoKey 3087
#define ProjCenterLongGeoKey 3088
#define ProjCenterLatGeoKey 3089
#define ProjCenterEastingGeoKey 3090
#define ProjCenterNorthingGeoKey 3091
#define ProjScaleAtNatOriginGeoKey 3092
#define ProjScaleAtCenterGeoKey 3093
#define ProjAzimuthAngleGeoKey 3094
#define ProjRectifiedGridAngleGeoKey 3096
#define GTModelTypeGeoKey 1024
#define GTRasterTypeGeoKey 1025
#define GeographicTypeGeoKey 2048
#define GeogGeodeticDatumGeoKey 2050
#define GeogPrimeMeridianGeoKey 2051
#define GeogAngularUnitsGeoKey 2054
#define GeogEllipsoidGeoKey 2056
#define GeogAzimuthUnitsGeoKey 2060
#define ProjectedCSTypeGeoKey 3072
#define ProjectionGeoKey 3074
#define ProjCoordTransGeoKey 3075
#define ProjLinearUnitsGeoKey 3076
#define ProjStdParallel1GeoKey 3078
#define ProjStdParallel2GeoKey 3079
#define ProjNatOriginLongGeoKey 3080
#define ProjNatOriginLatGeoKey 3081
#define ProjFalseEastingGeoKey 3082
#define ProjFalseNorthingGeoKey 3083
#define ProjFalseOriginLongGeoKey 3084
#define ProjFalseOriginLatGeoKey 3085
#define ProjFalseOriginEastingGeoKey 3086
#define ProjFalseOriginNorthingGeoKey 3087
#define ProjCenterLongGeoKey 3088
#define ProjCenterLatGeoKey 3089
#define ProjCenterEastingGeoKey 3090
#define ProjCenterNorthingGeoKey 3091
#define ProjScaleAtNatOriginGeoKey 3092
#define ProjScaleAtCenterGeoKey 3093
#define ProjAzimuthAngleGeoKey 3094
#define ProjStraightVertPoleLongGeoKey 3095
#define ProjRectifiedGridAngleGeoKey 3096
#define ModelTypeProjected 1
#define ModelTypeGeographic 2
#define ModelTypeGeocentric 3
#define ModelTypeProjected 1
#define ModelTypeGeographic 2
#define ModelTypeGeocentric 3
#define CT_TransverseMercator 1
#define CT_ObliqueMercator 3
#define CT_Mercator 7
#define CT_LambertConfConic_2SP 8
#define CT_LambertConfConic_1SP 9
#define CT_LambertAzimEqualArea 10
#define CT_AlbersEqualArea 11
#define CT_TransverseMercator 1
#define CT_ObliqueMercator 3
#define CT_Mercator 7
#define CT_LambertConfConic_2SP 8
#define CT_LambertConfConic_1SP 9
#define CT_LambertAzimEqualArea 10
#define CT_AlbersEqualArea 11
#define CT_PolarStereographic 15
#define IS_SET(map, key) \
@ -261,6 +263,7 @@ bool GeoTIFF::readKeys(TIFFFile &file, Ctx &ctx, QMap<quint16, Value> &kv) const
case ProjCenterNorthingGeoKey:
case ProjFalseOriginEastingGeoKey:
case ProjFalseOriginNorthingGeoKey:
case ProjStraightVertPoleLongGeoKey:
if (!readGeoValue(file, ctx.values, entry.ValueOffset,
value.DOUBLE))
return false;
@ -342,6 +345,8 @@ Projection::Method GeoTIFF::method(QMap<quint16, Value> &kv)
return Projection::Method(9820);
case CT_AlbersEqualArea:
return Projection::Method(9822);
case CT_PolarStereographic:
return Projection::Method(9829);
default:
_errorString = QString("%1: unknown coordinate transformation method")
.arg(kv.value(ProjCoordTransGeoKey).SHORT);
@ -407,6 +412,8 @@ bool GeoTIFF::projectedModel(QMap<quint16, Value> &kv)
lon0 = au.toDegrees(kv.value(ProjCenterLongGeoKey).DOUBLE);
else if (kv.contains(ProjFalseOriginLongGeoKey))
lon0 = au.toDegrees(kv.value(ProjFalseOriginLongGeoKey).DOUBLE);
else if (kv.contains(ProjStraightVertPoleLongGeoKey))
lon0 = au.toDegrees(kv.value(ProjStraightVertPoleLongGeoKey).DOUBLE);
else
lon0 = NAN;
if (kv.contains(ProjScaleAtNatOriginGeoKey))

1
src/map/pcs.cpp
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@ -32,6 +32,7 @@ static bool parameter(int key, double val, int units, Projection::Setup &setup)
case 8801:
case 8811:
case 8821:
case 8832:
{AngularUnits au(units);
if (au.isNull())
return false;

192
src/map/polarstereographic.cpp Normal file
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@ -0,0 +1,192 @@
/*
* Based on libgeotrans with the following Source Code Disclaimer:
1. The GEOTRANS source code ("the software") is provided free of charge by
the National Imagery and Mapping Agency (NIMA) of the United States
Department of Defense. Although NIMA makes no copyright claim under Title 17
U.S.C., NIMA claims copyrights in the source code under other legal regimes.
NIMA hereby grants to each user of the software a license to use and
distribute the software, and develop derivative works.
2. Warranty Disclaimer: The software was developed to meet only the internal
requirements of the U.S. National Imagery and Mapping Agency. The software
is provided "as is," and no warranty, express or implied, including but not
limited to the implied warranties of merchantability and fitness for
particular purpose or arising by statute or otherwise in law or from a
course of dealing or usage in trade, is made by NIMA as to the accuracy and
functioning of the software.
3. NIMA and its personnel are not required to provide technical support or
general assistance with respect to the software.
4. Neither NIMA nor its personnel will be liable for any claims, losses, or
damages arising from or connected with the use of the software. The user
agrees to hold harmless the United States National Imagery and Mapping
Agency. The user's sole and exclusive remedy is to stop using the software.
5. NIMA requests that products developed using the software credit the
source of the software with the following statement, "The product was
developed using GEOTRANS, a product of the National Imagery and Mapping
Agency and U.S. Army Engineering Research and Development Center."
6. For any products developed using the software, NIMA requires a disclaimer
that use of the software does not indicate endorsement or approval of the
product by the Secretary of Defense or the National Imagery and Mapping
Agency. Pursuant to the United States Code, 10 U.S.C. Sec. 2797, the name of
the National Imagery and Mapping Agency, the initials "NIMA", the seal of
the National Imagery and Mapping Agency, or any colorable imitation thereof
shall not be used to imply approval, endorsement, or authorization of a
product without prior written permission from United States Secretary of
Defense.
*/
#include "ellipsoid.h"
#include "polarstereographic.h"
#define POLAR_POW(EsSin) pow((1.0 - EsSin) / (1.0 + EsSin), _es_OVER_2)
PolarStereographic::PolarStereographic(const Ellipsoid *ellipsoid,
double latitudeOrigin, double longitudeOrigin,
double falseEasting, double falseNorthing)
{
_two_a = 2.0 * ellipsoid->radius();
if (longitudeOrigin > M_PI)
longitudeOrigin -= 2*M_PI;
if (latitudeOrigin < 0) {
_southernHemisphere = 1;
_originLatitude = -deg2rad(latitudeOrigin);
_originLongitude = -deg2rad(longitudeOrigin);
} else {
_southernHemisphere = 0;
_originLatitude = deg2rad(latitudeOrigin);
_originLongitude = deg2rad(longitudeOrigin);
}
_falseEasting = falseEasting;
_falseNorthing = falseNorthing;
double es2 = ellipsoid->es();
_es = sqrt(es2);
_es_OVER_2 = _es / 2.0;
if (fabs(fabs(_originLatitude) - M_PI_2) > 1.0e-10) {
double slat = sin(_originLatitude);
double essin = _es * slat;
double pow_es = POLAR_POW(essin);
double clat = cos(_originLatitude);
_mc = clat / sqrt(1.0 - essin * essin);
_a_mc = ellipsoid->radius() * _mc;
_tc = tan(M_PI_4 - _originLatitude / 2.0) / pow_es;
} else {
double one_PLUS_es = 1.0 + _es;
double one_MINUS_es = 1.0 - _es;
_e4 = sqrt(pow(one_PLUS_es, one_PLUS_es) * pow(one_MINUS_es,
one_MINUS_es));
}
}
PointD PolarStereographic::ll2xy(const Coordinates &c) const
{
double Easting, Northing;
double Longitude = deg2rad(c.lon());
double Latitude = deg2rad(c.lat());
if (fabs(fabs(Latitude) - M_PI_2) < 1.0e-10) {
Easting = 0.0;
Northing = 0.0;
} else {
if (_southernHemisphere != 0) {
Longitude *= -1.0;
Latitude *= -1.0;
}
double dlam = Longitude - _originLongitude;
if (dlam > M_PI)
dlam -= 2*M_PI;
if (dlam < -M_PI)
dlam += 2*M_PI;
double slat = sin(Latitude);
double essin = _es * slat;
double pow_es = POLAR_POW(essin);
double t = tan(M_PI_4 - Latitude / 2.0) / pow_es;
double rho;
if (fabs(fabs(_originLatitude) - M_PI_2) > 1.0e-10)
rho = _a_mc * t / _tc;
else
rho = _two_a * t / _e4;
Easting = rho * sin(dlam) + _falseEasting;
if (_southernHemisphere != 0) {
Easting *= -1.0;
Northing = rho * cos(dlam) + _falseNorthing;
} else
Northing = -rho * cos(dlam) + _falseNorthing;
}
return PointD(Easting, Northing);
}
Coordinates PolarStereographic::xy2ll(const PointD &p) const
{
double Latitude, Longitude;
double dy = p.y() - _falseNorthing;
double dx = p.x() - _falseEasting;
if ((dy == 0.0) && (dx == 0.0)) {
Latitude = M_PI_2;
Longitude = _originLongitude;
} else {
if (_southernHemisphere != 0) {
dy *= -1.0;
dx *= -1.0;
}
double rho = sqrt(dx * dx + dy * dy);
double t;
if (fabs(fabs(_originLatitude) - M_PI_2) > 1.0e-10)
t = rho * _tc / (_a_mc);
else
t = rho * _e4 / (_two_a);
double PHI = M_PI_2 - 2.0 * atan(t);
double tempPHI = 0.0;
while (fabs(PHI - tempPHI) > 1.0e-10) {
tempPHI = PHI;
double sin_PHI = sin(PHI);
double essin = _es * sin_PHI;
double pow_es = POLAR_POW(essin);
PHI = M_PI_2 - 2.0 * atan(t * pow_es);
}
Latitude = PHI;
Longitude = _originLongitude + atan2(dx, -dy);
if (Longitude > M_PI)
Longitude -= 2*M_PI;
else if (Longitude < -M_PI)
Longitude += 2*M_PI;
if (Latitude > M_PI_2)
Latitude = M_PI_2;
else if (Latitude < -M_PI_2)
Latitude = -M_PI_2;
if (Longitude > M_PI)
Longitude = M_PI;
else if (Longitude < -M_PI)
Longitude = -M_PI;
}
if (_southernHemisphere != 0) {
Latitude *= -1.0;
Longitude *= -1.0;
}
return Coordinates(rad2deg(Longitude), rad2deg(Latitude));
}

34
src/map/polarstereographic.h Normal file
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@ -0,0 +1,34 @@
#ifndef POLARSTEREOGRAPHIC_H
#define POLARSTEREOGRAPHIC_H
#include "ct.h"
class Ellipsoid;
class PolarStereographic : public CT
{
public:
PolarStereographic(const Ellipsoid *ellipsoid, double latitudeOrigin,
double longitudeOrigin, double falseEasting, double falseNorthing);
virtual CT *clone() const {return new PolarStereographic(*this);}
virtual PointD ll2xy(const Coordinates &c) const;
virtual Coordinates xy2ll(const PointD &p) const;
private:
double _originLatitude;
double _originLongitude;
double _falseEasting;
double _falseNorthing;
double _a_mc;
double _es;
double _es_OVER_2;
double _two_a;
double _mc;
double _tc;
double _e4;
int _southernHemisphere;
};
#endif // POLARSTEREOGRAPHIC_H

7
src/map/projection.cpp
View File

@ -6,6 +6,7 @@
#include "albersequal.h"
#include "lambertazimuthal.h"
#include "krovak.h"
#include "polarstereographic.h"
#include "latlon.h"
#include "gcs.h"
#include "pcs.h"
@ -25,6 +26,7 @@ Projection::Method::Method(int id)
case 9819:
case 9820:
case 9822:
case 9829:
_id = id;
break;
default:
@ -87,6 +89,11 @@ Projection::Projection(const PCS *pcs) : _gcs(pcs->gcs()), _units(pcs->units()),
setup.longitudeOrigin(), setup.falseEasting(),
setup.falseNorthing());
break;
case 9829:
_ct = new PolarStereographic(ellipsoid, setup.latitudeOrigin(),
setup.longitudeOrigin(), setup.falseEasting(),
setup.falseNorthing());
break;
default:
_ct = 0;
}

53
src/map/rectd.cpp Normal file
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@ -0,0 +1,53 @@
#include "common/rectc.h"
#include "projection.h"
#include "rectd.h"
#define SAMPLE_POINTS 100
static void growRect(const Projection &proj, const Coordinates &c, RectD &rect)
{
if (c.isNull())
return;
PointD p(proj.ll2xy(c));
if (rect.isNull())
rect = RectD(p, p);
else {
if (p.x() < rect.left())
rect.setLeft(p.x());
if (p.x() > rect.right())
rect.setRight(p.x());
if (p.y() < rect.bottom())
rect.setBottom(p.y());
if (p.y() > rect.top())
rect.setTop(p.y());
}
}
RectD::RectD(const RectC &rect, const Projection &proj)
{
RectD prect;
double dx = (rect.right() - rect.left()) / SAMPLE_POINTS;
double dy = (rect.top() - rect.bottom()) / SAMPLE_POINTS;
growRect(proj, rect.topLeft(), prect);
if (dx > 0) {
for (int i = 0; i <= SAMPLE_POINTS; i++) {
double x = rect.left() + i * dx;
growRect(proj, Coordinates(x, rect.bottom()), prect);
growRect(proj, Coordinates(x, rect.top()), prect);
}
}
if (dy > 0) {
for (int i = 0; i <= SAMPLE_POINTS; i++ ) {
double y = rect.bottom() + i * dy;
growRect(proj, Coordinates(rect.left(), y), prect);
growRect(proj, Coordinates(rect.right(), y), prect);
}
}
*this = prect;
}

10
src/map/rectd.h
View File

@ -3,12 +3,16 @@
#include "pointd.h"
class RectC;
class Projection;
class RectD
{
public:
RectD() {}
RectD(const PointD &topLeft, const PointD &bottomRight)
: _tl(topLeft), _br(bottomRight) {}
RectD(const RectC &rect, const Projection &proj);
PointD topLeft() const {return _tl;}
PointD bottomRight() const {return _br;}
@ -18,6 +22,11 @@ public:
double top() const {return _tl.y();}
double bottom() const {return _br.y();}
void setLeft(double val) {_tl.rx() = val;}
void setRight(double val) {_br.rx() = val;}
void setTop(double val) {_tl.ry() = val;}
void setBottom(double val) {_br.ry() = val;}
double width() const {return (right() - left());}
double height() const {return (top() - bottom());}
@ -26,6 +35,7 @@ public:
&& p.y() >= bottom());}
bool isNull() const {return _tl.isNull() && _br.isNull();}
bool isValid() const {return !(_tl.isNull() || _br.isNull());}
private:
PointD _tl, _br;

16
src/map/wmsmap.cpp
View File

@ -65,12 +65,8 @@ void WMSMap::updateTransform()
double pixelSpan = sd2res(_zooms.at(_zoom));
if (_projection.isGeographic())
pixelSpan /= deg2rad(WGS84_RADIUS);
double sx = _bbox.width() / pixelSpan;
double sy = _bbox.height() / pixelSpan;
ReferencePoint tl(PointD(0, 0), _bbox.topLeft());
ReferencePoint br(PointD(sx, sy), _bbox.bottomRight());
_transform = Transform(tl, br);
_transform = Transform(ReferencePoint(PointD(0, 0),
_projection.ll2xy(_bbox.topLeft())), PointD(pixelSpan, pixelSpan));
}
bool WMSMap::loadWMS()
@ -84,8 +80,8 @@ bool WMSMap::loadWMS()
}
_projection = wms.projection();
_bbox = RectD(_projection.ll2xy(wms.boundingBox().topLeft()),
_projection.ll2xy(wms.boundingBox().bottomRight()));
_bbox = wms.boundingBox();
_bounds = RectD(_bbox, _projection);
_tileLoader->setUrl(tileUrl(wms.version()));
if (wms.version() >= "1.3.0") {
@ -124,8 +120,8 @@ void WMSMap::clearCache()
QRectF WMSMap::bounds()
{
return QRectF(_transform.proj2img(_bbox.topLeft()) / _mapRatio,
_transform.proj2img(_bbox.bottomRight()) / _mapRatio);
return QRectF(_transform.proj2img(_bounds.topLeft()) / _mapRatio,
_transform.proj2img(_bounds.bottomRight()) / _mapRatio);
}
int WMSMap::zoomFit(const QSize &size, const RectC &rect)

3
src/map/wmsmap.h
View File

@ -55,7 +55,8 @@ private:
Transform _transform;
CoordinateSystem _cs;
QVector<double> _zooms;
RectD _bbox;
RectC _bbox;
RectD _bounds;
int _zoom;
qreal _mapRatio;

20
src/map/wmtsmap.cpp
View File

@ -22,10 +22,10 @@ bool WMTSMap::loadWMTS()
return false;
}
_bounds = wmts.bounds();
_zooms = wmts.zooms();
_projection = wmts.projection();
_tileLoader->setUrl(wmts.tileUrl());
_bounds = RectD(wmts.bounds(), _projection);
if (_setup.coordinateSystem().axisOrder() == CoordinateSystem::Unknown)
_cs = _projection.coordinateSystem();
@ -77,14 +77,8 @@ void WMTSMap::updateTransform()
double pixelSpan = sd2res(z.scaleDenominator());
if (_projection.isGeographic())
pixelSpan /= deg2rad(WGS84_RADIUS);
PointD tileSpan(z.tile().width() * pixelSpan, z.tile().height() * pixelSpan);
PointD bottomRight(topLeft.x() + tileSpan.x() * z.matrix().width(),
topLeft.y() - tileSpan.y() * z.matrix().height());
ReferencePoint tl(PointD(0, 0), topLeft);
ReferencePoint br(PointD(z.tile().width() * z.matrix().width(),
z.tile().height() * z.matrix().height()), bottomRight);
_transform = Transform(tl, br);
_transform = Transform(ReferencePoint(PointD(0, 0), topLeft),
PointD(pixelSpan, pixelSpan));
}
QRectF WMTSMap::bounds()
@ -99,9 +93,11 @@ QRectF WMTSMap::bounds()
* z.tile().height()), QSize(z.tile().width() * z.limits().width(),
z.tile().height() * z.limits().height()));
bounds = _bounds.isValid() ? QRectF(ll2xy(_bounds.topLeft()),
ll2xy(_bounds.bottomRight())) : QRectF();
return _bounds.isValid() ? tileBounds.intersected(bounds) : tileBounds;
if (_bounds.isValid())
bounds = QRectF(_transform.proj2img(_bounds.topLeft())
/ coordinatesRatio(), _transform.proj2img(_bounds.bottomRight())
/ coordinatesRatio());
return bounds.isValid() ? tileBounds.intersected(bounds) : tileBounds;
}
int WMTSMap::zoomFit(const QSize &size, const RectC &rect)

3
src/map/wmtsmap.h
View File

@ -4,6 +4,7 @@
#include "transform.h"
#include "projection.h"
#include "map.h"
#include "rectd.h"
#include "wmts.h"
class TileLoader;
@ -50,7 +51,7 @@ private:
QString _name;
WMTS::Setup _setup;
TileLoader *_tileLoader;
RectC _bounds;
RectD _bounds;
QList<WMTS::Zoom> _zooms;
Projection _projection;
Transform _transform;