NIS_Surface Class Reference

#include <NIS_Surface.hxx>

Inheritance diagram for NIS_Surface:

[legend]

Public Member Functions
	NIS_Surface (const Handle_Poly_Triangulation &theTri, const Handle_NCollection_BaseAllocator &theAlloc=0L)
	NIS_Surface (const TopoDS_Shape &theShape, const Handle_NCollection_BaseAllocator &theAlloc=0L)
virtual	~NIS_Surface ()
Standard_Integer	NNodes () const
Standard_Integer	NTriangles () const
const Standard_ShortReal *	Node (const Standard_Integer theIndex) const
const Standard_Integer *	Triangle (const Standard_Integer theIndex) const
const Standard_ShortReal *	Normal (const Standard_Integer theIndex) const
virtual Handle_NIS_Drawer	DefaultDrawer () const
void	SetColor (const Quantity_Color &theColor)
void	SetBackColor (const Quantity_Color &theColor)
void	SetPolygonOffset (const Standard_Real theValue)
void	SetTransparency (const Standard_Real theValue)
virtual Standard_Real	Intersect (const gp_Ax1 &theAxis, const Standard_Real theOver) const
virtual Standard_Boolean	Intersect (const Bnd_B3f &theBox, const gp_Trsf &theTrf, const Standard_Boolean isFull) const
Protected Member Functions
virtual void	computeBox ()
Standard_Boolean	computeNormal (Standard_Integer theIndex, gp_XYZ &theNormal) const

---

Detailed Description

This class describes a presentation of a meshed surface.

---

Constructor & Destructor Documentation

NIS_Surface::NIS_Surface	(	const Handle_Poly_Triangulation &	theTri,
		const Handle_NCollection_BaseAllocator &	theAlloc = 0L
	)

Constructor

NIS_Surface::NIS_Surface	(	const TopoDS_Shape &	theShape,
		const Handle_NCollection_BaseAllocator &	theAlloc = 0L
	)

Constructor. Creates the presentation of all faces in 'theShape' object. theShape Source geometry. It should contain triangulations inside.

Parameters:

theAlloc

Allocator used for nodes and triangles in this presentation.

virtual NIS_Surface::~NIS_Surface

(

)

[virtual]

Destructor

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Member Function Documentation

virtual void NIS_Surface::computeBox

(

)

[protected, virtual]

Create a 3D bounding box of the object.

Implements NIS_InteractiveObject.

Standard_Boolean NIS_Surface::computeNormal	(	Standard_Integer	theIndex,
		gp_XYZ &	theNormal
	)			const [protected]

Compute normal to the surface at the node with the given index. Returns true if the vertex is artificial at this node.

virtual Handle_NIS_Drawer NIS_Surface::DefaultDrawer

(

)

const [virtual]

Create a default drawer instance.

Implements NIS_InteractiveObject.

virtual Standard_Boolean NIS_Surface::Intersect	(	const Bnd_B3f &	theBox,
		const gp_Trsf &	theTrf,
		const Standard_Boolean	isFull
	)			const [virtual]

Intersect the InteractiveObject geometry with an oriented box.

Parameters:

	theBox	3D box of selection
	theTrf	Position/Orientation of the box.
	isFull	True if full inclusion is required, False - if partial.

Returns:

True if the InteractiveObject geometry intersects the box or is inside it

Reimplemented from NIS_InteractiveObject.

virtual Standard_Real NIS_Surface::Intersect	(	const gp_Ax1 &	theAxis,
		const Standard_Real	theOver
	)			const [virtual]

Intersect the InteractiveObject geometry with a line/ray.

Parameters:

	theAxis	The line or ray in 3D space.
	theOver	Half-thickness of the selecting line - ignored.

Returns:

If the return value is more than 0.1*RealLast() then no intersection is detected. Otherwise returns the coordinate of the nearest intersection on the ray. May be negative.

Implements NIS_InteractiveObject.

Standard_Integer NIS_Surface::NNodes

(

)

const [inline]

Query the number of nodes.

const Standard_ShortReal* NIS_Surface::Node

(

const Standard_Integer

theIndex

)

const [inline]

Query the node by its index.

Returns:

pointer to array of 3 Standard_ShortReal values (X,Y,Z coordinates)

const Standard_ShortReal* NIS_Surface::Normal

(

const Standard_Integer

theIndex

)

const [inline]

Query the normal vector at the given triangulation node (by index)

Returns:

pointer to array of 3 Standard_ShortReal values (X,Y,Z coordinates)

Standard_Integer NIS_Surface::NTriangles

(

)

const [inline]

Query the number of triangles.

void NIS_Surface::SetBackColor

(

const Quantity_Color &

theColor

)

Set the color for presentation of the back side of triangles.

Parameters:

theColor

New color to use for the presentation.

void NIS_Surface::SetColor

(

const Quantity_Color &

theColor

)

Set the normal color for presentation.

Parameters:

theColor

New color to use for the presentation.

void NIS_Surface::SetPolygonOffset

(

const Standard_Real

theValue

)

Set the offset for the presentation.

Parameters:

theValue

New offset to use for the presentation.

void NIS_Surface::SetTransparency

(

const Standard_Real

theValue

)

Set the transparency factor.

Parameters:

theValue

1.0 means full transparency, 0.0 means opaque. Valid quantities are in this interval.

Reimplemented from NIS_InteractiveObject.

const Standard_Integer* NIS_Surface::Triangle

(

const Standard_Integer

theIndex

)

const [inline]

Query the triangle by its index.

Returns:

pointer to array of 3 Standard_Integer values (nodes 0, 1, 2)

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The documentation for this class was generated from the following file:

• NIS_Surface.hxx