List of all members.
Public Types |
enum | DrawMask {
SURFACE = 0x00000001,
SPOKES = 0x00000002,
EDGELINE = 0x00000008,
SIDES = 0x00000010,
ALL = 0x7fffffff
} |
typedef std::vector
< osg::ref_ptr< osg::Vec3Array > > | LineList |
Public Member Functions |
| SphereSegment () |
| SphereSegment (const osg::Vec3 ¢re, float radius, float azMin, float azMax, float elevMin, float elevMax, int density) |
| SphereSegment (const osg::Vec3 ¢re, float radius, const osg::Vec3 &vec, float azRange, float elevRange, int density) |
| SphereSegment (const SphereSegment &rhs, const osg::CopyOp &co) |
void | setCentre (const osg::Vec3 &c) |
const osg::Vec3 & | getCentre () const |
void | setRadius (float r) |
float | getRadius () const |
void | setArea (const osg::Vec3 &vec, float azRange, float elevRange) |
void | getArea (osg::Vec3 &vec, float &azRange, float &elevRange) const |
void | setArea (float azMin, float azMax, float elevMin, float elevMax) |
void | getArea (float &azMin, float &azMax, float &elevMin, float &elevMax) const |
void | setDensity (int d) |
int | getDensity () const |
void | setDrawMask (DrawMask dm) |
DrawMask | getDrawMask () const |
void | setSurfaceColor (const osg::Vec4 &c) |
osg::Vec4 | getSurfaceColor () const |
void | setSpokeColor (const osg::Vec4 &c) |
osg::Vec4 | getSpokeColor () const |
void | setEdgeLineColor (const osg::Vec4 &c) |
osg::Vec4 | getEdgeLineColor () const |
void | setSideColor (const osg::Vec4 &c) |
osg::Vec4 | getSideColor () const |
void | setAllColors (const osg::Vec4 &c) |
| META_Node (osgSim, SphereSegment) |
LineList | computeIntersection (const osg::Matrixd &matrix, osg::Node *subgraph) |
LineList | computeIntersection (const osg::Matrixd &matrix, osg::Drawable *drawable) |
osg::Node * | computeIntersectionSubgraph (const osg::Matrixd &matrix, osg::Node *subgraph) |
osg::Node * | computeIntersectionSubgraph (const osg::Matrixd &matrix, osg::Drawable *drawable) |
Friends |
class | Surface |
class | EdgeLine |
class | Side |
class | Spoke |
Detailed Description
A SphereSegment is a Geode to represent an portion of a sphere (potentially the whole sphere). The sphere is aligned such that the line through the sphere's poles is parallel to the z axis. The sphere segment may be rendered various components switched on or off:
- The specified area of the sphere surface.
- An edge line around the boundary of the specified area of the sphere surface.
- Four spokes, where a spoke is the line from the sphere's centre to a corner of the rendered area.
- Four planar areas, where the planar areas are formed between the spokes.
Caveats:
- It's worth noting that the line through the sphere's poles is parallel to the z axis. This has implications when specifying the area to be rendered, and specifying areas where the centre of the rendered area is the Z axis may lead to unexpected geometry.
- It's possible to render the whole sphere by specifying elevation and azimuth ranges round the full 360 degrees. When doing so you may consider switching the planes, spokes, and edge lines off, to avoid rendering artefacts, e.g. the upper and lower planes will be coincident.
Member Typedef Documentation
A list of vertex arrays representing a list of lines.
Member Enumeration Documentation
DrawMask represents a bit field, the values of which may be OR'ed together to specify which parts of the sphere segment should be drawn. E.g.
- Enumerator:
SURFACE |
Draw the specified area on the sphere's surface.
|
SPOKES |
Draw the spokes from the sphere's centre to the surface's corners.
|
EDGELINE |
Draw the line round the edge of the area on the sphere's surface.
|
SIDES |
Draw the planes from the sphere's centre to the edge of the sphere's surface.
|
ALL |
Draw every part of the sphere segment.
|
Constructor & Destructor Documentation
osgSim::SphereSegment::SphereSegment |
( |
) |
[inline] |
osgSim::SphereSegment::SphereSegment |
( |
const osg::Vec3 & |
centre, |
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float |
radius, |
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float |
azMin, |
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float |
azMax, |
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float |
elevMin, |
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float |
elevMax, |
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int |
density |
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) |
| [inline] |
Construct by angle ranges. Note that the azimuth 'zero' is the Y axis; specifying an azimuth range from azMin -osgPI/2.0f to azMax osg::PI/2.0f will cover the 'top half' of the circle in the XY plane. The elev angles are 'out' of the 'zero' XY plane with +ve angles above the plane, and -ve angles below.
- Parameters:
-
centre | sphere centre |
radius | radius of sphere |
azMin | azimuth minimum |
azMax | azimuth maximum |
elevMin | elevation minimum |
elevMax | elevation maximum |
density | number of units to divide the azimuth and elevation ranges into |
osgSim::SphereSegment::SphereSegment |
( |
const osg::Vec3 & |
centre, |
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float |
radius, |
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const osg::Vec3 & |
vec, |
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float |
azRange, |
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float |
elevRange, |
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int |
density |
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) |
| |
Construct by vector.
- Parameters:
-
centre | sphere centre |
radius | radius of sphere |
vec | vector pointing from sphere centre to centre point of rendered area on sphere surface |
azRange | azimuth range in radians (with centre along vec) |
elevRange | elevation range in radians (with centre along vec) |
density | number of units to divide the azimuth and elevation ranges into |
Member Function Documentation
Compute the interesection lines between subgraph and this sphere segment. The matrix is the transform that takes the subgraph into the same coordiante frame as the sphere segment. The resulting intersections are in the coordinate frame of the sphere segment.
Compute the interesection lines between specified drawable and this sphere segment. The matrix is the transform that takes the subgraph into the same coordiante frame as the sphere segment. The resulting intersections are in the coordinate frame of the sphere segment.
Compute the interesection lines between subgraph and this sphere segment. The matrix is the transform that takes the subgraph into the same coordiante frame as the sphere segment. The resulting intersections are in the coordinate frame of the sphere segment.
Compute the interesection lines between specified drawable and this sphere segment. The matrix is the transform that takes the subgraph into the same coordiante frame as the sphere segment. The resulting intersections are in the coordinate frame of the sphere segment.
void osgSim::SphereSegment::getArea |
( |
osg::Vec3 & |
vec, |
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float & |
azRange, |
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float & |
elevRange |
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) |
| const |
Get the area of the sphere segment
- Parameters:
-
vec | vector pointing from sphere centre to centre point of rendered area on sphere surface (normalized) |
azRange | azimuth range in radians (with centre along vec) |
elevRange | elevation range in radians (with centre along vec) |
void osgSim::SphereSegment::getArea |
( |
float & |
azMin, |
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float & |
azMax, |
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float & |
elevMin, |
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float & |
elevMax |
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) |
| const |
Get the area of the sphere segment
- Parameters:
-
azMin | azimuth minimum |
azMax | azimuth maximum |
elevMin | elevation minimum |
elevMax | elevation maximum |
const osg::Vec3& osgSim::SphereSegment::getCentre |
( |
) |
const |
int osgSim::SphereSegment::getDensity |
( |
) |
const |
Get the density of the sphere segment
DrawMask osgSim::SphereSegment::getDrawMask |
( |
) |
const [inline] |
osg::Vec4 osgSim::SphereSegment::getEdgeLineColor |
( |
) |
const [inline] |
Get the color of the edge line.
float osgSim::SphereSegment::getRadius |
( |
) |
const |
osg::Vec4 osgSim::SphereSegment::getSideColor |
( |
) |
const [inline] |
Get the color of the planes.
osg::Vec4 osgSim::SphereSegment::getSpokeColor |
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) |
const [inline] |
Get the color of the spokes.
osg::Vec4 osgSim::SphereSegment::getSurfaceColor |
( |
) |
const [inline] |
Get the color of the surface.
void osgSim::SphereSegment::setAllColors |
( |
const osg::Vec4 & |
c ) |
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Set color of all components.
void osgSim::SphereSegment::setArea |
( |
const osg::Vec3 & |
vec, |
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float |
azRange, |
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float |
elevRange |
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) |
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Set the area of the sphere segment
- Parameters:
-
vec | vector pointing from sphere centre to centre point of rendered area on sphere surface |
azRange | azimuth range in radians (with centre along vec) |
elevRange | elevation range in radians (with centre along vec) |
void osgSim::SphereSegment::setArea |
( |
float |
azMin, |
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float |
azMax, |
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float |
elevMin, |
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float |
elevMax |
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) |
| |
Set the area of the sphere segment
- Parameters:
-
azMin | azimuth minimum |
azMax | azimuth maximum |
elevMin | elevation minimum |
elevMax | elevation maximum |
void osgSim::SphereSegment::setCentre |
( |
const osg::Vec3 & |
c ) |
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void osgSim::SphereSegment::setDensity |
( |
int |
d ) |
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Set the density of the sphere segment
void osgSim::SphereSegment::setDrawMask |
( |
DrawMask |
dm ) |
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Specify the DrawMask.
- Parameters:
-
dm | Bitmask specifying which parts of the sphere segment should be drawn. |
- See also:
- DrawMask
void osgSim::SphereSegment::setEdgeLineColor |
( |
const osg::Vec4 & |
c ) |
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Set the color of the edge line.
void osgSim::SphereSegment::setRadius |
( |
float |
r ) |
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void osgSim::SphereSegment::setSideColor |
( |
const osg::Vec4 & |
c ) |
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Set the color of the planes.
void osgSim::SphereSegment::setSpokeColor |
( |
const osg::Vec4 & |
c ) |
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Set the color of the spokes.
void osgSim::SphereSegment::setSurfaceColor |
( |
const osg::Vec4 & |
c ) |
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Set the color of the surface.
Friends And Related Function Documentation
friend class EdgeLine [friend] |
friend class Side [friend] |
friend class Spoke [friend] |
friend class Surface [friend] |
The documentation for this class was generated from the following file: