/usr/include/oce/Visual3d_ViewOrientation.hxx is in liboce-visualization-dev 0.9.1-3.
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// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _Visual3d_ViewOrientation_HeaderFile
#define _Visual3d_ViewOrientation_HeaderFile
#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif
#ifndef _Graphic3d_Vertex_HeaderFile
#include <Graphic3d_Vertex.hxx>
#endif
#ifndef _Graphic3d_Vector_HeaderFile
#include <Graphic3d_Vector.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Handle_TColStd_HArray2OfReal_HeaderFile
#include <Handle_TColStd_HArray2OfReal.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
class TColStd_HArray2OfReal;
class Visual3d_ViewOrientationDefinitionError;
class Visual3d_View;
class Graphic3d_Vertex;
class Graphic3d_Vector;
//! This class allows the definition of the manner in <br>
//! which an observer looks at the visualised scene. <br>
//! It defines a coordinate system called VRC <br>
//! (View Reference Coordinates) with 3 axes U,V,N <br>
//! Summary of 3D View Orientation -- <br>
//! -- <br>
//! The view orientation transformation defines -- <br>
//! the relationship between World Coordinates -- <br>
//! (WC) and View Reference Coordinates (VRC) -- <br>
//! -- <br>
//! To define a view orientation transformation -- <br>
//! you must define : -- <br>
//! -- <br>
//! The View Reference Point (VRP) -- <br>
//! The View Plane Normal (VPN) -- <br>
//! The View Up Vector (VUP). -- <br>
//! <br>
//! Optionally, it is possible to specify anisotropic <br>
//! (axial) scale factors. This allows to scale the scene <br>
//! using individual scale values along each coordinate axis. <br>
class Visual3d_ViewOrientation {
public:
void* operator new(size_t,void* anAddress)
{
return anAddress;
}
void* operator new(size_t size)
{
return Standard::Allocate(size);
}
void operator delete(void *anAddress)
{
if (anAddress) Standard::Free((Standard_Address&)anAddress);
}
//! Creates a VRC coordinate system. <br>
//! VRP : Origin of the VRC coordinate system. <br>
//! (default value : 0.0, 0.0, 0.0) <br>
//! VPN : Vector normal to the plane of visualisation. <br>
//! (default value : 0.0, 0.0, 1.0) <br>
//! VUP : Vector for which the projection in the plane <br>
//! of visualisation defines the axis V of a VRC <br>
//! coordinate system. <br>
//! (default value : 0.0, 1.0, 0.0) <br>
Standard_EXPORT Visual3d_ViewOrientation();
//! Creates a VRC coordinate system. <br>
//! VRP : Origin of the VRC coordinate system. <br>
//! VPN : Vector normal to the plane of visualisation. <br>
//! VUP : Vector for which the projection in the plane <br>
//! of visualisation defines the axis V of a VRC <br>
//! coordinate system. <br>
//! This vector can be likened to the <br>
//! vertical of the observer. <br>
//! Warning: Raises ViewOrientationDefinitionError <br>
//! if <VPN> is null. <br>
//! if <VUP> is null. <br>
//! if <VPN> and <VUP> are parallel. <br>
Standard_EXPORT Visual3d_ViewOrientation(const Graphic3d_Vertex& VRP,const Graphic3d_Vector& VPN,const Graphic3d_Vector& VUP);
//! Creates a VRC coordinate system. <br>
//! VRP : Origin of VRC coordinate system. <br>
//! VPN : Normal vector to the plane of visualisation. <br>
//! Twist : Angle in radians of the V axis in the VRC <br>
//! coordinate system with the projection in <br>
//! the plane of visualisation of the Zm axis <br>
//! in the model space. <br>
//! Warning: Raises ViewOrientationDefinitionError if <VPN> is null. <br>
Standard_EXPORT Visual3d_ViewOrientation(const Graphic3d_Vertex& VRP,const Graphic3d_Vector& VPN,const Standard_Real Twist);
//! Creates a VRC coordinate system. <br>
//! VRP : Origin of the VRC coordinate system. <br>
//! Azim : Angle in radians of the plane of visualisation <br>
//! with the XmYm plane of the model space. <br>
//! Inc : Angle in radians of the plane of visualisation <br>
//! with the YmZm plane of the model space. <br>
//! Twist : Angle in radians of the V axis in the VRC <br>
//! coordinate system with the projection in <br>
//! the plane of visualisation of the Zm axis <br>
//! in the model space. <br>
//! Warning: Raises ViewOrientationDefinitionError <br>
Standard_EXPORT Visual3d_ViewOrientation(const Graphic3d_Vertex& VRP,const Standard_Real Azim,const Standard_Real Inc,const Standard_Real Twist);
//! Modifies the plane of visualisation <br>
//! defined by a normal vector. <br>
//! Category: Methods to modify the class definition <br>
//! Warning: Raises ViewOrientationDefinitionError if <VPN> is null. <br>
Standard_EXPORT void SetViewReferencePlane(const Graphic3d_Vector& VPN) ;
//! Modifies the origin of the VRC coordinate system <br>
Standard_EXPORT void SetViewReferencePoint(const Graphic3d_Vertex& VRP) ;
//! Modifies the vertical of the observer. <br>
//! Category: Methods to modify the class definition <br>
//! Warning: Raises ViewOrientationDefinitionError if <VUP> is null. <br>
Standard_EXPORT void SetViewReferenceUp(const Graphic3d_Vector& VUP) ;
//! Sets axial scale factors of the view <br>
Standard_EXPORT void SetAxialScale(const Standard_Real Sx,const Standard_Real Sy,const Standard_Real Sz) ;
//! Sets custom MODELVIEW matrix for the OpenGl context <br>
Standard_EXPORT void SetCustomModelViewMatrix(const Handle(TColStd_HArray2OfReal)& Mat) ;
//! Returns the angle in radians of the V axis in the VRC <br>
//! coordinate system with the projection in the plane of <br>
//! visualisation of the Zm axis in the model space. <br>
Standard_EXPORT Standard_Real Twist() const;
//! Returns the normal to the plane of projection. <br>
Standard_EXPORT Graphic3d_Vector ViewReferencePlane() const;
//! Returns origin of the VRC coordinate system. <br>
Standard_EXPORT Graphic3d_Vertex ViewReferencePoint() const;
//! Returns the vertical of the observer. <br>
Standard_EXPORT Graphic3d_Vector ViewReferenceUp() const;
//! Returns current values of the axial scale factors. <br>
Standard_EXPORT void AxialScale(Standard_Real& Sx,Standard_Real& Sy,Standard_Real& Sz) const;
//! Returns whether the custom MODELVIEW matrix is used. <br>
Standard_EXPORT Standard_Boolean IsCustomMatrix() const;
friend class Visual3d_View;
protected:
private:
//! Copies the content of <Other> into <me>. <br>
Standard_EXPORT void Assign(const Visual3d_ViewOrientation& Other) ;
Graphic3d_Vertex MyViewReferencePoint;
Graphic3d_Vector MyViewPlaneNormal;
Graphic3d_Vector MyViewUpVector;
Standard_Real MyScaleX;
Standard_Real MyScaleY;
Standard_Real MyScaleZ;
Handle_TColStd_HArray2OfReal MyModelViewMatrix;
};
// other Inline functions and methods (like "C++: function call" methods)
#endif
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