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109 lines
4.1 KiB
C++
109 lines
4.1 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2023 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_MODULE_GLOBEBROWSING___GEODETICPATCH___H__
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#define __OPENSPACE_MODULE_GLOBEBROWSING___GEODETICPATCH___H__
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#include <modules/globebrowsing/src/basictypes.h>
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namespace openspace::globebrowsing {
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struct TileIndex;
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class GeodeticPatch {
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public:
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GeodeticPatch(double centerLat, double centerLon, double halfSizeLat,
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double halfSizeLon);
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GeodeticPatch(const Geodetic2& center, const Geodetic2& halfSize);
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GeodeticPatch(const GeodeticPatch& patch) = default;
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GeodeticPatch(const TileIndex& tileIndex);
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void setCenter(Geodetic2 center);
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void setHalfSize(Geodetic2 halfSize);
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/**
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* Returns the latitude boundary which is closest to the equator
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*/
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double edgeLatitudeNearestEquator() const;
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/**
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* Returns `true` if the center above the equator
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*/
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double isNorthern() const;
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Geodetic2 corner(Quad q) const;
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double minLat() const;
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double maxLat() const;
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double minLon() const;
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double maxLon() const;
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/**
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* Returns `true` if the specified coordinate is contained within the patch
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*/
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bool contains(const Geodetic2& p) const;
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/**
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* Clamps a point to the patch region
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*/
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Geodetic2 clamp(const Geodetic2& p) const;
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/**
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* Returns the corner of the patch that is closest to the given point p
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*/
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Geodetic2 closestCorner(const Geodetic2& p) const;
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/**
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* Returns a point on the patch that minimizes the great-circle distance to
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* the given point p.
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*/
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Geodetic2 closestPoint(const Geodetic2& p) const;
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/**
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* Returns the minimum tile level of the patch (based on largest side)
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*/
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double minimumTileLevel() const;
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/**
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* Returns the maximum level of the patch (based on smallest side)
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*/
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double maximumTileLevel() const;
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const Geodetic2& center() const;
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const Geodetic2& halfSize() const;
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Geodetic2 size() const;
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private:
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Geodetic2 _center;
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Geodetic2 _halfSize;
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};
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} // namespace openspace::globebrowsing
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#endif // __OPENSPACE_MODULE_GLOBEBROWSING___GEODETICPATCH___H__
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