Stellarium
1.2
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#include <StelSphereGeometry.hpp>
Public Member Functions | |
SphericalConvexPolygon () | |
Default constructor. | |
SphericalConvexPolygon (const QVector< QVector< Vec3d > > &contours) | |
Constructor from a list of contours. | |
SphericalConvexPolygon (const QVector< Vec3d > &contour) | |
Constructor from one contour. | |
SphericalConvexPolygon (const Vec3d &e0, const Vec3d &e1, const Vec3d &e2) | |
Special constructor for triangle. | |
SphericalConvexPolygon (const Vec3d &e0, const Vec3d &e1, const Vec3d &e2, const Vec3d &e3) | |
Special constructor for quads. | |
virtual SphericalRegionType | getType () const Q_DECL_OVERRIDE |
virtual OctahedronPolygon | getOctahedronPolygon () const Q_DECL_OVERRIDE |
Return the octahedron contour representation of the polygon. More... | |
virtual StelVertexArray | getFillVertexArray (const Vec3d &observerVelocityForAberration) Q_DECL_OVERRIDE |
Return an OpenGL compatible array to be displayed using vertex arrays. More... | |
virtual StelVertexArray | getFillVertexArray () const Q_DECL_OVERRIDE |
Return an OpenGL compatible array to be displayed using vertex arrays. | |
virtual StelVertexArray | getOutlineVertexArray () const Q_DECL_OVERRIDE |
Get the outline of the contours defining the SphericalPolygon. More... | |
virtual StelVertexArray | getOutlineVertexArray (Vec3d observerVelocityForAberration) Q_DECL_OVERRIDE |
Get the outline of the contours defining the SphericalPolygon. More... | |
virtual double | getArea () const Q_DECL_OVERRIDE |
Return the area of the region in steradians. | |
virtual bool | isEmpty () const Q_DECL_OVERRIDE |
Return true if the region is empty. | |
virtual Vec3d | getPointInside () const Q_DECL_OVERRIDE |
Return a point located inside the region. | |
virtual SphericalCap | getBoundingCap () const Q_DECL_OVERRIDE |
Return a bounding SphericalCap. More... | |
QVector< SphericalCap > | getBoundingSphericalCaps () const Q_DECL_OVERRIDE |
Return the list of SphericalCap bounding the ConvexPolygon. | |
virtual QVariantList | toQVariant () const Q_DECL_OVERRIDE |
Serialize the region into a QVariant map matching the JSON format. More... | |
virtual void | serialize (QDataStream &out) const Q_DECL_OVERRIDE |
Serialize the region. This method must allow as fast as possible serialization and work with deserialize(). | |
virtual bool | contains (const Vec3d &p) const Q_DECL_OVERRIDE |
virtual bool | contains (const SphericalPolygon &r) const Q_DECL_OVERRIDE |
virtual bool | contains (const SphericalConvexPolygon &r) const Q_DECL_OVERRIDE |
virtual bool | contains (const SphericalCap &r) const Q_DECL_OVERRIDE |
virtual bool | contains (const SphericalPoint &r) const Q_DECL_OVERRIDE |
virtual bool | contains (const AllSkySphericalRegion &) const Q_DECL_OVERRIDE |
virtual bool | intersects (const SphericalCap &r) const Q_DECL_OVERRIDE |
virtual bool | intersects (const SphericalPolygon &r) const Q_DECL_OVERRIDE |
virtual bool | intersects (const SphericalConvexPolygon &r) const Q_DECL_OVERRIDE |
virtual bool | intersects (const SphericalPoint &r) const Q_DECL_OVERRIDE |
virtual bool | intersects (const AllSkySphericalRegion &) const Q_DECL_OVERRIDE |
void | setContour (const QVector< Vec3d > &acontour) |
Set a single contour defining the SphericalPolygon. More... | |
const QVector< Vec3d > & | getConvexContour () const |
Get the single contour defining the SphericalConvexPolygon. | |
bool | checkValid () const |
Check if the polygon is valid, i.e. it has no side >180. | |
bool | intersects (const SphericalRegion *r) const |
Returns whether a SphericalRegion intersects with this region. More... | |
bool | intersects (const SphericalRegionP r) const |
bool | intersects (const Vec3d &p) const |
virtual bool | intersects (const SphericalPolygon &r) const |
virtual bool | intersects (const SphericalConvexPolygon &r) const |
virtual bool | intersects (const SphericalCap &r) const |
virtual bool | intersects (const SphericalPoint &r) const |
virtual bool | intersects (const AllSkySphericalRegion &r) const |
bool | intersects (const EmptySphericalRegion &) const |
bool | contains (const SphericalRegion *r) const |
Returns whether a SphericalRegion is contained into this region. More... | |
bool | contains (const SphericalRegionP r) const |
virtual bool | contains (const Vec3d &p) const |
virtual bool | contains (const SphericalPolygon &r) const |
virtual bool | contains (const SphericalConvexPolygon &r) const |
virtual bool | contains (const SphericalCap &r) const |
virtual bool | contains (const SphericalPoint &r) const |
virtual bool | contains (const AllSkySphericalRegion &r) const |
bool | contains (const EmptySphericalRegion &) const |
Public Member Functions inherited from SphericalRegion | |
virtual SphericalRegionP | getEnlarged (double margin) const |
Return an enlarged version of this SphericalRegion so that any point distant of more than the given margin now lays within the region. More... | |
virtual QVector< QVector< Vec3d > > | getSimplifiedContours () const |
Get the contours defining the SphericalPolygon when combined using a positive winding rule. More... | |
QByteArray | toJSON () const |
Output a JSON string representing the polygon. More... | |
bool | contains (const SphericalRegion *r) const |
Returns whether a SphericalRegion is contained into this region. More... | |
bool | contains (const SphericalRegionP r) const |
bool | contains (const EmptySphericalRegion &) const |
bool | intersects (const SphericalRegion *r) const |
Returns whether a SphericalRegion intersects with this region. More... | |
bool | intersects (const SphericalRegionP r) const |
bool | intersects (const Vec3d &p) const |
bool | intersects (const EmptySphericalRegion &) const |
SphericalRegionP | getSubtraction (const SphericalRegion *r) const |
Return a new SphericalRegion consisting of the subtraction of the given region from this. More... | |
SphericalRegionP | getSubtraction (const SphericalRegionP r) const |
virtual SphericalRegionP | getSubtraction (const SphericalPolygon &r) const |
virtual SphericalRegionP | getSubtraction (const SphericalConvexPolygon &r) const |
virtual SphericalRegionP | getSubtraction (const SphericalCap &r) const |
virtual SphericalRegionP | getSubtraction (const SphericalPoint &r) const |
SphericalRegionP | getSubtraction (const AllSkySphericalRegion &r) const |
virtual SphericalRegionP | getSubtraction (const EmptySphericalRegion &r) const |
Static Public Member Functions | |
static bool | checkValidContour (const QVector< Vec3d > &contour) |
Check if the passed contour is convex and valid, i.e. it has no side >180. | |
static SphericalRegionP | deserialize (QDataStream &in) |
Deserialize the region. This method must allow as fast as possible deserialization. | |
Protected Member Functions | |
void | updateBoundingCap () |
Update the bounding cap from the vertex list. | |
bool | areAllPointsOutsideOneSide (const QVector< Vec3d > &points) const |
Computes whether the passed points are all outside of at least one SphericalCap defining the polygon boundary. | |
bool | containsConvexContour (const Vec3d *vertice, int nbVertex) const |
Static Protected Member Functions | |
static bool | areAllPointsOutsideOneSide (const Vec3d *thisContour, int nbThisContour, const Vec3d *points, int nbPoints) |
Computes whether the passed points are all outside of at least one SphericalCap defining the polygon boundary. More... | |
Protected Attributes | |
QVector< Vec3d > | contour |
A list of vertices of the convex contour. | |
QVector< Vec3d > | aberratedContour |
A list of vertices, built on the fly from the contour when aberration is required. | |
SphericalCap | cachedBoundingCap |
Cache the bounding cap. | |
Additional Inherited Members | |
Public Types inherited from SphericalRegion | |
enum | SphericalRegionType { Point = 0, Cap = 1, AllSky = 2, Polygon = 3, ConvexPolygon = 4, Empty = 5, Invalid = 6 } |
A special case of SphericalPolygon for which the polygon is convex.
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staticprotected |
thisContour | the vertices defining the contour. |
nbThisContour | nb of vertice of the contour. |
points | the points to test. |
nbPoints | the number of points to test. |
bool SphericalRegion::contains |
A default potentially very slow implementation is provided for each case.
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inlinevirtual |
This method is heavily used and therefore needs to be very fast. The returned SphericalCap doesn't have to be the smallest one, but smaller is better.
Reimplemented from SphericalRegion.
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virtual |
Reimplemented from SphericalRegion.
Reimplemented in SphericalTexturedConvexPolygon.
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inlinevirtual |
It can be used for safe computation of intersection/union in the general case.
Implements SphericalRegion.
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virtual |
Reimplemented from SphericalRegion.
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virtual |
Reimplemented from SphericalRegion.
bool SphericalRegion::intersects |
A default potentially very slow implementation is provided for each case.
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inline |
acontour | a contour defining the polygon area. |
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virtual |
The format is
where the coords are a closed convex contour, with each points defined by ra dec in degree in the ICRS frame.
Implements SphericalRegion.
Reimplemented in SphericalTexturedConvexPolygon.