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Open CASCADE Technology 6.5.2
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Open CASCADE Technology 6.5.2
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This class allows the definition of a projection and
a system of coordinates called NPC.
(Normalized Projection Coordinates).
The projection can be parallel or perspective.
References: The definitions are Phigs oriented.
Keywords: View, Mapping, Window, View Plane, Front Plane,
BackPlane, Projection Type, Reset, Projection
Summary of 3D View Mapping --
The view mapping transformation defines the --
window-to-viewport mapping of View Reference --
Coordinates (VRC) to Normalized Projection --
Coordinates (NPC). --
CAS.CADE supports two kinds of projection : --
Parallel : --
The Projection Reference Point (PRP) --
determines the direction of projection. --
Perspective : --
The projector lines converge at the --
Projection Reference Point (PRP). --
To define a view mapping transformation you --
must define : --
The Projection Type --
The Projection Reference Point (PRP) --
The Distance from Back Plane (BPD) --
The Distance from Front Plane (FPD) --
The Distance from View Plane (VPD) --
The Window in the View Plane. --
#include <Visual3d_ViewMapping.hxx>
Public Member Functions | |
| void * | operator new (size_t, void *anAddress) |
| void * | operator new (size_t size) |
| void | operator delete (void *anAddress) |
| Visual3d_ViewMapping () | |
| Creates a projection. | |
| Visual3d_ViewMapping (const Visual3d_TypeOfProjection AType, const Graphic3d_Vertex &PRP, const Standard_Real BPD, const Standard_Real FPD, const Standard_Real VPD, const Standard_Real WUmin, const Standard_Real WVmin, const Standard_Real WUmax, const Standard_Real WVmax) | |
| Creates a projection. | |
| void | SetBackPlaneDistance (const Standard_Real BPD) |
| Modifies the back clipping plane. Category: Methods to modify the class definition Warning: Raises ViewMappingDefinitionError if <PRP> is between the front and back planes. if <PRP> is positioned on the view plane. if the back plane is in front of the front plane. | |
| void | SetFrontPlaneDistance (const Standard_Real FPD) |
| Modifies the front clipping plane. Category: Methods to modify the class definition Warning: Raises ViewMappingDefinitionError if <PRP> is between the front and back planes. if <PRP> is positioned on the view plane. if the back plane is in front of the front plane. | |
| void | SetProjection (const Visual3d_TypeOfProjection AType) |
| Modifies the type of projection. | |
| void | SetProjectionReferencePoint (const Graphic3d_Vertex &PRP) |
| Modifies the PRP. Category: Methods to modify the class definition Warning: Raises ViewMappingDefinitionError if <PRP> is between the front and back planes. if <PRP> is positioned on the view plane. | |
| void | SetViewPlaneDistance (const Standard_Real VPD) |
| Modifies the distance of the view plane of projection. Category: Methods to modify the class definition Warning: Raises ViewMappingDefinitionError if <PRP> is positioned on the view plane. | |
| void | SetWindowLimit (const Standard_Real Umin, const Standard_Real Vmin, const Standard_Real Umax, const Standard_Real Vmax) |
| Modifies the visible part of the projection plane. Category: Methods to modify the class definition Warning: Raises ViewMappingDefinitionError if the specified window is invalid. | |
| void | SetCustomProjectionMatrix (const Handle< TColStd_HArray2OfReal > &Mat) |
| Sets custom PROJECTION matrix for the OpenGl context | |
| Standard_Real | BackPlaneDistance () const |
| Returns the distance from the back clipping plane of this view mapping. | |
| Standard_Real | FrontPlaneDistance () const |
| Returns the distance from the front clipping plane of this view mapping. | |
| Visual3d_TypeOfProjection | Projection () const |
| Returns the type of projection. | |
| Graphic3d_Vertex | ProjectionReferencePoint () const |
| Returns the PRP. | |
| Standard_Real | ViewPlaneDistance () const |
| Returns the distance from the projection plane. | |
| void | WindowLimit (Standard_Real &Umin, Standard_Real &Vmin, Standard_Real &Umax, Standard_Real &Vmax) const |
| Returns the visible part of the projection plane. | |
| Standard_Boolean | IsCustomMatrix () const |
| Returns whether the custom PROJECTION matrix is used. | |
| Visual3d_ViewMapping::Visual3d_ViewMapping | ( | ) |
| Visual3d_ViewMapping::Visual3d_ViewMapping | ( | const Visual3d_TypeOfProjection | AType, |
| const Graphic3d_Vertex & | PRP, | ||
| const Standard_Real | BPD, | ||
| const Standard_Real | FPD, | ||
| const Standard_Real | VPD, | ||
| const Standard_Real | WUmin, | ||
| const Standard_Real | WVmin, | ||
| const Standard_Real | WUmax, | ||
| const Standard_Real | WVmax | ||
| ) |
| Standard_Real Visual3d_ViewMapping::BackPlaneDistance | ( | ) | const |
| Standard_Real Visual3d_ViewMapping::FrontPlaneDistance | ( | ) | const |
| Standard_Boolean Visual3d_ViewMapping::IsCustomMatrix | ( | ) | const |
| void Visual3d_ViewMapping::operator delete | ( | void * | anAddress | ) | [inline] |
| void* Visual3d_ViewMapping::operator new | ( | size_t | size | ) | [inline] |
| void* Visual3d_ViewMapping::operator new | ( | size_t | , |
| void * | anAddress | ||
| ) | [inline] |
| Visual3d_TypeOfProjection Visual3d_ViewMapping::Projection | ( | ) | const |
| Graphic3d_Vertex Visual3d_ViewMapping::ProjectionReferencePoint | ( | ) | const |
| void Visual3d_ViewMapping::SetBackPlaneDistance | ( | const Standard_Real | BPD | ) |
| void Visual3d_ViewMapping::SetCustomProjectionMatrix | ( | const Handle< TColStd_HArray2OfReal > & | Mat | ) |
| void Visual3d_ViewMapping::SetFrontPlaneDistance | ( | const Standard_Real | FPD | ) |
| void Visual3d_ViewMapping::SetProjection | ( | const Visual3d_TypeOfProjection | AType | ) |
| void Visual3d_ViewMapping::SetProjectionReferencePoint | ( | const Graphic3d_Vertex & | PRP | ) |
| void Visual3d_ViewMapping::SetViewPlaneDistance | ( | const Standard_Real | VPD | ) |
| void Visual3d_ViewMapping::SetWindowLimit | ( | const Standard_Real | Umin, |
| const Standard_Real | Vmin, | ||
| const Standard_Real | Umax, | ||
| const Standard_Real | Vmax | ||
| ) |
| Standard_Real Visual3d_ViewMapping::ViewPlaneDistance | ( | ) | const |
| void Visual3d_ViewMapping::WindowLimit | ( | Standard_Real & | Umin, |
| Standard_Real & | Vmin, | ||
| Standard_Real & | Umax, | ||
| Standard_Real & | Vmax | ||
| ) | const |
1.7.4
