Package geomss.geom.reader.iges

Class Entity128_BSplineSurface

java.lang.Object

geomss.geom.reader.iges.Entity

geomss.geom.reader.iges.GeomSSEntity

geomss.geom.reader.iges.Entity128_BSplineSurface

public class Entity128_BSplineSurface
extends GeomSSEntity

RATIONAL B-SPLINE SURFACE ENTITY - This entity represents a Rational B-Spline Surface. This represents a parametric equation obtained by dividing two summations involving weights (which are real numbers), the control points, and B-Spline basis functions.

This entity, when read from an IGES file, is converted to a NURBS surface. This entity type can be written out to an IGES file. When reading in this entity, all IGES parameters are stored in the user data with the prefix "IGES_128_" followed by the parameter name.

Modified by: Joseph A. Huwaldt

Version:

February 22, 2025

Author:

Joseph A. Huwaldt, Date: August 23, 2010

Constructor Summary

Constructors

Constructor	Description
Entity128_BSplineSurface(Part part, int DEnum, NurbsSurface geom)	Create this entity from the specified GeomSS geometry element.
Entity128_BSplineSurface(Part p, DirEntry de)	Default constructor.

Method Summary

Modifier and Type	Method	Description
boolean	canWrite()	Returns true if the Entity can be written to an exchange file.
void	check()	Checks to see if the entity is correct.
java.lang.String	getTypeString()	Returns a short String describing this Entity object's type.
void	read(java.io.RandomAccessFile in)	Read the Parameter Data from the String read in by the superclass.
java.lang.String	toString()	Dump to String.
int	write(java.io.PrintWriter writer, int PDnum)	Write this entities parameter data to the specified PrintWriter.

Methods inherited from class geomss.geom.reader.iges.GeomSSEntity

getGeomElement, isUsedInList

Methods inherited from class geomss.geom.reader.iges.Entity

blankedStatus, getDENum, getErrors, getHeader, getMatrix, getPDNum, getType, getView, hierStatus, read_additional, subordStatus, useStatus

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Entity128_BSplineSurface

public Entity128_BSplineSurface(Part p,
                                DirEntry de)

Default constructor.

Parameters:

p - part to which this entity is contained

de - Directory Entry for this entity

Entity128_BSplineSurface

public Entity128_BSplineSurface(Part part,
                                int DEnum,
                                NurbsSurface geom)

Create this entity from the specified GeomSS geometry element.

Parameters:

part - The Part in which this entity is contained.

DEnum - The line count from the start of the Directory Entry Section for this entry (odd number).

geom - The GeomSS geometry to return an Entity for.

Method Detail

check

public void check()

Checks to see if the entity is correct. The following restrictions are imposed: - The Label Display Pointer shall be 0

Specified by:

check in class Entity

read

public void read(java.io.RandomAccessFile in)
          throws java.io.IOException

Read the Parameter Data from the String read in by the superclass.

Overrides:

read in class Entity

Parameters:

in - input file

Throws:

java.io.IOException - if the parameter data could not be read in.

canWrite

public boolean canWrite()

Returns true if the Entity can be written to an exchange file.

Overrides:

canWrite in class Entity

Returns:

true

write

public int write(java.io.PrintWriter writer,
                 int PDnum)
          throws java.io.IOException

Write this entities parameter data to the specified PrintWriter.

Overrides:

write in class Entity

Parameters:

writer - The PrintWriter to write the parameter data for this entity to.

PDnum - The starting Parameter Data row index number.

Returns:

The Parameter Data row index number for the next row.

Throws:

java.io.IOException - if the parameter data could not be written out.

getTypeString

public java.lang.String getTypeString()

Returns a short String describing this Entity object's type.

Specified by:

getTypeString in class Entity

Returns:

A short String describing this Entity object's type.

toString

public java.lang.String toString()

Dump to String.

Overrides:

toString in class Entity

Returns:

String containing the resulting text.