SphericalTexturedConvexPolygon Class Reference

Extension of SphericalConvexPolygon for textured polygon. More...

#include <StelSphereGeometry.hpp>

Public Member Functions
	SphericalTexturedConvexPolygon ()
	Default constructor.
	SphericalTexturedConvexPolygon (const QVector< Vec3d > &contour, const QVector< Vec2f > &texCoord)
	Constructor from one contour.
	SphericalTexturedConvexPolygon (const Vec3d &e0, const Vec3d &e1, const Vec3d &e2, const Vec3d &e3)
	Special constructor for quads.
virtual void	setContour (const QVector< Vec3d > &acontour, const QVector< Vec2f > &texCoord)
	Set a single contour defining the SphericalPolygon.
virtual QVariantList	toQVariant () const
	Serialize the region into a QVariant map matching the JSON format.
virtual void	serialize (QDataStream &out) const
	Serialize the region. This method must allow as fast as possible serialization and work with deserialize().
Protected Member Functions
virtual void	updateFillVertexBuffer (class StelRenderer *renderer, const DrawParams &params, bool handleDiscontinuity)
	Update the vertex buffer used by drawFill().
virtual void	drawFillVertexBuffer (class StelRenderer renderer, class StelProjector projector)
	Drawing part of drawFill() - assumes the buffer/s is/are generated.
Protected Attributes
QVector< Vec2f >	textureCoords
	A list of uv texture coordinates corresponding to the triangle vertices.
StelVertexBuffer < TexturedVertex > *	fillTexturedVertexBuffer
	Vertex buffer used in our override of drawFill() (using vertices with texcoords).

Detailed Description

Extension of SphericalConvexPolygon for textured polygon.

Definition at line 1106 of file StelSphereGeometry.hpp.

Constructor & Destructor Documentation

SphericalTexturedConvexPolygon::SphericalTexturedConvexPolygon ( ) [inline]

Default constructor.

Definition at line 1110 of file StelSphereGeometry.hpp.

SphericalTexturedConvexPolygon::SphericalTexturedConvexPolygon	(	const QVector< Vec3d > &	contour,
		const QVector< Vec2f > &	texCoord
	)			`[inline]`

Constructor from one contour.

Definition at line 1116 of file StelSphereGeometry.hpp.

SphericalTexturedConvexPolygon::SphericalTexturedConvexPolygon	(	const Vec3d &	e0,
		const Vec3d &	e1,
		const Vec3d &	e2,
		const Vec3d &	e3
	)			`[inline]`

Special constructor for quads.

Use the 4 textures corners for the 4 vertices.

Definition at line 1125 of file StelSphereGeometry.hpp.

Member Function Documentation

virtual void SphericalTexturedConvexPolygon::drawFillVertexBuffer	(	class StelRenderer *	renderer,
		class StelProjector *	projector
	)			`[protected, virtual]`

Drawing part of drawFill() - assumes the buffer/s is/are generated.

Parameters:

	renderer	Renderer used for drawing.
	projector	Projector to project the vertices (NULL if subdivision is enabled, as in that case the projection is done during buffer generation)

Reimplemented from SphericalConvexPolygon.

virtual void SphericalTexturedConvexPolygon::serialize ( QDataStream & out ) const [inline, virtual]

Serialize the region. This method must allow as fast as possible serialization and work with deserialize().

Reimplemented from SphericalConvexPolygon.

Definition at line 1159 of file StelSphereGeometry.hpp.

virtual void SphericalTexturedConvexPolygon::setContour	(	const QVector< Vec3d > &	acontour,
		const QVector< Vec2f > &	texCoord
	)			`[inline, virtual]`

Set a single contour defining the SphericalPolygon.

Parameters:

	acontour	a contour defining the polygon area.
	texCoord	a list of texture coordinates matching the vertices of the contour.

Definition at line 1144 of file StelSphereGeometry.hpp.

virtual QVariantList SphericalTexturedConvexPolygon::toQVariant ( ) const [virtual]

Serialize the region into a QVariant map matching the JSON format.

The format is:

 ["TEXTURED_CONVEX_POLYGON", [[ra,dec], [ra,dec], [ra,dec], [ra,dec]], [[u,v],[u,v],[u,v],[u,v]]]

where the two lists are a closed convex contours, with each points defined by ra dec in degree in the ICRS frame followed by a list of texture coordinates in the u,v texture space (between 0 and 1). There must be one texture coordinate for each vertex.

Reimplemented from SphericalConvexPolygon.

virtual void SphericalTexturedConvexPolygon::updateFillVertexBuffer	(	class StelRenderer *	renderer,
		const DrawParams &	params,
		bool	handleDiscontinuity
	)			`[protected, virtual]`

Update the vertex buffer used by drawFill().

Called when drawing parameters have changed, or when we cannot cache vertices (e.g. when subdividing and this projecting outside Renderer).

Parameters:

	renderer	Renderer to create vertex buffer.
	params	Parameters used for drawing (which also affect vertex generation).
	handleDiscontinuity	Do we need to ensure that no triangles cross a projection discontinuity?

Reimplemented from SphericalConvexPolygon.