PoDomain Class Reference
[Misc]

Node to define a domain. More...

#include <MeshViz/nodes/PoDomain.h>

Inheritance diagram for PoDomain:

List of all members.

Public Types
enum	TransformType {   TRANSFORM_01,   SCALE_X_FIXED,   SCALE_Y_FIXED,   SCALE_Z_FIXED,   SCALE_MAX_XYZ_FIXED }
enum	BoundingBoxType {   AS_IS,   MIN_BOUNDING_CUBE,   MAX_BOUNDED_CUBE }
Public Member Functions
virtual SoType	getTypeId () const
void	setValues (const SbVec2f &min, const SbVec2f &max, BoundingBoxType type=AS_IS)
void	setValues (const SbVec3f &min, const SbVec3f &max, BoundingBoxType type=AS_IS)
SoTransform *	getTransform ()
SoMatrixTransform *	getMatrixTransform ()
	PoDomain ()
Static Public Member Functions
static SoType	getClassTypeId ()
Public Attributes
SoSFVec3f	min
SoSFVec3f	max
SoSFEnum	transformType

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Detailed Description

Node to define a domain.

This node defines the current domain for all subsequent MeshViz representations. This class is used to define a 2D/3D domain.

The domain usually defines the data coordinate limits of graphics to be generated. Graph Master & 3D Data Master do not calculate these limits, so this class provides them. In conceptual terms, a 2D domain (3D domain) is the smallest rectangle (parallelepiped) capable of containing the data for the image to be generated. The sides of this rectangle (parallelepiped) are parallel to the axis. Furthermore all Graph Master & 3D Data Master nodekits classes may be transformed according to the domain which they depend on.

There are five possible transformations (we note dx = xmax - xmin, dy = ymax - ymin and dz = zmax - zmin, xmin, ymin,..., zmax are the limits of the domain):

• The transformation is a scaling and a translation (all representations are drawn between [0-1] x [0-1] x ([0-1])). (type of transformation = TRANSFORM_01).

• All representations are scaled with scaling factors x = 1, y = dx/dy, z = dx/dz. (type of transformation = SCALE_X_FIXED).

• All representations are scaled with scaling factors x = dy/dx, y =1, z = dy/dz. (type of transformation = SCALE_Y_FIXED).

• All representations are scaled with scaling factors x = dz/dx, y = dz/dy, z = 1. (type of transformation = SCALE_Z_FIXED).

• One of scale 2,3,4 is applied according to the max(dx,dy,dz). (type of transformation = SCALE_MAX_XYZ_FIXED).

Except the first transformation type, the others compute a scaling only if the domain is heterogeneous.

Data given by the user to define the coordinates of the domain (xmin, ymin, zmin, xmax,...) can be interpreted if the user wants to. The interpretation of these data depends on the value of the last attribute (of type BoundingBoxType) of each method for setting domain coordinates. Values for this attribute can be :

• AS_IS: Data are not interpreted. This is the default value.
• MIN_BOUNDING_CUBE: The miminum bounding square(2D domain)/cube(3D domain) is computed from the user data to set the domain coordinates.
• MAX_BOUNDED_CUBE: The maximum bounded square(2D domain)/cube(3D domain) is computed from the user data to set the domain coordinates.

NOTE: PoDomain is effectively a transform node, but ONLY affects MeshViz nodes. If you want the PoDomain transform to apply to other geometry, use the getTransform() method to get an SoTransform node and insert that node in the scene graph above the other geometry.

FILE FORMAT/DEFAULT

PoDomain {

min	0 0 0
max	1 1 1
transformType	SCALE_X_FIXED

}

See related examples:

MedicalComputeHistogram, ComputeHistogram

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Member Enumeration Documentation

enum PoDomain::BoundingBoxType

Bounding box interpretation.

Enumerator:

AS_IS
MIN_BOUNDING_CUBE
MAX_BOUNDED_CUBE

enum PoDomain::TransformType

Transform type.

Enumerator:

TRANSFORM_01
SCALE_X_FIXED
SCALE_Y_FIXED
SCALE_Z_FIXED
SCALE_MAX_XYZ_FIXED

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Constructor & Destructor Documentation

PoDomain::PoDomain

(

)

Constructor.

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Member Function Documentation

static SoType PoDomain::getClassTypeId

(

)

[static]

Returns the type identifier for this class.

Reimplemented from PoNode.

SoMatrixTransform* PoDomain::getMatrixTransform

(

)

Get the domain transform matrix in an SbMatrix object.

SoTransform* PoDomain::getTransform

(

)

Get the domain transform matrix in an SoTransform object.

virtual SoType PoDomain::getTypeId

(

)

const [virtual]

Returns the type identifier for this specific instance.

Reimplemented from PoNode.

void PoDomain::setValues	(	const SbVec3f &	min,
		const SbVec3f &	max,
		BoundingBoxType	type = AS_IS
	)

Convenience method to define a 3D domain.

void PoDomain::setValues	(	const SbVec2f &	min,
		const SbVec2f &	max,
		BoundingBoxType	type = AS_IS
	)

Convenience method to define a 2D domain.

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Member Data Documentation

SoSFVec3f PoDomain::max

Define the maximum of the domain.

SoSFVec3f PoDomain::min

Define the minimum of the domain.

SoSFEnum PoDomain::transformType

Define the transformation type of the domain.

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The documentation for this class was generated from the following file:
• MeshViz/nodes/PoDomain.h