Package com.jsevy.jdxf

Class DXFSpline

java.lang.Object

com.jsevy.jdxf.DXFDatabaseObject

com.jsevy.jdxf.DXFEntity

com.jsevy.jdxf.DXFGraphicalEntity

com.jsevy.jdxf.DXFSpline

All Implemented Interfaces:

DXFObject

public class DXFSpline
extends DXFGraphicalEntity

Class representing a general B-spline

Author:

jsevy

Field Summary

Fields inherited from class com.jsevy.jdxf.DXFDatabaseObject

LINEWEIGHT_BYBLOCK, LINEWEIGHT_BYLAYER

Constructor Summary

Constructors

Constructor	Description
DXFSpline(int degree, double[] controlPoints, double[] knots, DXFGraphics graphics)	Create a spline of specified degree for the specified control points, using supplied knot vector.
DXFSpline(int degree, java.util.Vector<SplineControlPoint> controlPoints, boolean throughEndpoints, DXFGraphics graphics)	Create a spline of specified degree for the specified control points, using uniform knot vector.

Method Summary

Modifier and Type	Method	Description
java.lang.String	getDXFHatchInfo()
java.lang.String	toDXFString()	Implementation of DXFObject interface method; creates DXF text representing the spline.

Methods inherited from class com.jsevy.jdxf.DXFEntity

setPrecisionDigits

Methods inherited from class com.jsevy.jdxf.DXFDatabaseObject

getDXFLineWeight, getHandle, getHandleCount

Methods inherited from class java.lang.Object

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

Constructor Detail

DXFSpline

public DXFSpline(int degree,
                 java.util.Vector<SplineControlPoint> controlPoints,
                 boolean throughEndpoints,
                 DXFGraphics graphics)

Create a spline of specified degree for the specified control points, using uniform knot vector.

Parameters:

degree - Degree of the piecewise-polynomial spline segments

controlPoints - Locations and weights of the control points for the spline

throughEndpoints - If true, the spline will be forced to pass through the endpoints by setting the end control point multiplicities to degree + 1

graphics - The graphics object specifying parameters for this entity (color, thickness)

DXFSpline

public DXFSpline(int degree,
                 double[] controlPoints,
                 double[] knots,
                 DXFGraphics graphics)

Create a spline of specified degree for the specified control points, using supplied knot vector.

Parameters:

degree - Degree of the piecewise-polynomial spline segments

controlPoints - Locations of the control points for the spline

knots - The knot sequence; length must be controlPoints.size() + degree + 1

graphics - The graphics object specifying parameters for this entity (color, thickness)

Method Detail

toDXFString

public java.lang.String toDXFString()

Implementation of DXFObject interface method; creates DXF text representing the spline.

Specified by:

toDXFString in interface DXFObject

Overrides:

toDXFString in class DXFGraphicalEntity

getDXFHatchInfo

public java.lang.String getDXFHatchInfo()

Overrides:

getDXFHatchInfo in class DXFGraphicalEntity