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-- File: Poly_PolygonOnTriangulation.cdl
-- Created: Wed Feb 21 10:09:23 1996
-- Author: Laurent PAINNOT
-- <lpa@nonox>
---Copyright: Matra Datavision 1996
class PolygonOnTriangulation from Poly inherits TShared from MMgt
---Purpose: This class provides a polygon in 3D space, based on the triangulation
-- of a surface. It may be the approximate representation of a
-- curve on the surface, or more generally the shape.
-- A PolygonOnTriangulation is defined by a table of
-- nodes. Each node is an index in the table of nodes specific
-- to a triangulation, and represents a point on the surface. If
-- the polygon is closed, the index of the point of closure is
-- repeated at the end of the table of nodes.
-- If the polygon is an approximate representation of a curve
-- on a surface, you can associate with each of its nodes the
-- value of the parameter of the corresponding point on the
-- curve.represents a 3d Polygon
uses Array1OfInteger from TColStd,
Array1OfReal from TColStd,
HArray1OfReal from TColStd,
Triangulation from Poly
raises NullObject from Standard
is
Create(Nodes: Array1OfInteger from TColStd)
returns mutable PolygonOnTriangulation from Poly;
---Purpose: Constructs a 3D polygon on the triangulation of a shape,
-- defined by the table of nodes, <Nodes>.
Create(Nodes : Array1OfInteger from TColStd;
Parameters: Array1OfReal from TColStd)
returns mutable PolygonOnTriangulation from Poly;
---Purpose:
-- Constructs a 3D polygon on the triangulation of a shape, defined by:
-- - the table of nodes, Nodes, and the table of parameters, <Parameters>.
-- where:
-- - a node value is an index in the table of nodes specific
-- to an existing triangulation of a shape
-- - and a parameter value is the value of the parameter of
-- the corresponding point on the curve approximated by
-- the constructed polygon.
-- Warning
-- The tables Nodes and Parameters must be the same size.
-- This property is not checked at construction time.
Deflection(me) returns Real;
---Purpose: Returns the deflection of this polygon
Deflection(me : mutable; D : Real);
---Purpose: Sets the deflection of this polygon to D.
-- See more on deflection in Poly_Polygones2D.
NbNodes(me) returns Integer;
---Purpose:
-- Returns the number of nodes for this polygon.
-- Note: If the polygon is closed, the point of closure is
-- repeated at the end of its table of nodes. Thus, on a closed
-- triangle, the function NbNodes returns 4.
---C++: inline
Nodes(me) returns Array1OfInteger from TColStd
---Purpose: Returns the table of nodes for this polygon. A node value
-- is an index in the table of nodes specific to an existing
-- triangulation of a shape.
---C++: return const &
raises NullObject from Standard;
HasParameters(me) returns Boolean from Standard;
---Purpose:
-- Returns true if parameters are associated with the nodes in this polygon.
Parameters(me) returns HArray1OfReal from TColStd
--- Purpose: Returns the table of the parameters associated with each node in this polygon.
-- Warning
-- Use the function HasParameters to check if parameters
-- are associated with the nodes in this polygon.
--
raises NullObject from Standard;
fields
myDeflection : Real from Standard;
myNodes : Array1OfInteger from TColStd;
myParameters : HArray1OfReal from TColStd;
end PolygonOnTriangulation;
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