Archon::X3D::Cylinder Struct Reference

Server side representation of the equally named X3D node type. More...

#include <archon/x3d/server/geometry.H>

Inheritance diagram for Archon::X3D::Cylinder:

[legend]Collaboration diagram for Archon::X3D::Cylinder:

[legend]List of all members.

Public Member Functions
const NodeType *	getType () const
	Cylinder (BackRef< ExecutionContext > c)
double	getHeight () const
double	getRadius () const
bool	getSide () const
bool	getTop () const
bool	getBottom () const
int	intersect (const Math::Ray3 &, double &dist) const
void	getNormalAndTexCoord (Vector3 hitPoint, int where, const Shape *, Vector3 *hitNormal, Vector2 *hitTexCoord) const
void	render (bool texture, const Shape *shape, const RenderConfig *)
Static Public Member Functions
static Ref< NodeBase >	instantiate (BackRef< ExecutionContext > c)
Static Public Attributes
static const NodeType *	type = 0
Friends
void	initializeGeometryComponent ()

---

Detailed Description

Server side representation of the equally named X3D node type.

The Cylinder node specifies a capped cylinder centred at the origin of the local coordinate system and with a central axis oriented along the local Y-axis. The radius field specifies the radius of the cylinder and the height field specifies the height of the cylinder along the central axis. The default height is 2 and the default radius is 1.

When a texture is applied to a cylinder, it is applied differently to the sides, top, and bottom. On the sides, the texture wraps counterclockwise (from above) starting at the back of the cylinder. The texture has a vertical seam at the back, intersecting the X=0 plane. For the top and bottom caps, a circle is cut out of the unit texture squares centred at (0, +/- height/2, 0) with dimensions 2 x radius by 2 x radius. The top texture appears right side up when the top of the cylinder is tilted toward the +Z-axis, and the bottom texture appears right side up when the top of the cylinder is tilted toward the -Z-axis.

Definition at line 314 of file geometry.H.

---

Member Function Documentation

int Archon::X3D::Cylinder::intersect (  const Math::Ray3 &  ray, double &  dist )  const [virtual]

Todo: Is it correct to considder a cylinder with missing parts as non-solid and a cylinder with all parts enabled as a solid object? (I think I saw a confirmation of this somewhere in the spec -KKS) Implements Archon::X3D::GeometryNode. Definition at line 474 of file geometry.C. References Archon::Math::intersectCylinder().

---

The documentation for this struct was generated from the following files:

• archon/x3d/server/geometry.H
• archon/x3d/server/geometry.C

---