Package com.jsevy.jdxf

Class DXFEllipse

java.lang.Object

com.jsevy.jdxf.DXFDatabaseObject

com.jsevy.jdxf.DXFEntity

com.jsevy.jdxf.DXFGraphicalEntity

com.jsevy.jdxf.DXFEllipse

All Implemented Interfaces:

DXFObject

public class DXFEllipse
extends DXFGraphicalEntity

Class representing an elliptical arc.

Author:

jsevy

Field Summary

Fields inherited from class com.jsevy.jdxf.DXFDatabaseObject

LINEWEIGHT_BYBLOCK, LINEWEIGHT_BYLAYER

Constructor Summary

Constructors

Constructor	Description
DXFEllipse(RealPoint center, RealPoint majorAxisEndpoint, double axisRatio, double startParameter, double endParameter, boolean isCounterclockwise, DXFGraphics graphics)	Create an elliptical arc corresponding to the specified parameters.

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 elliptical arc.

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

DXFEllipse

public DXFEllipse(RealPoint center,
                  RealPoint majorAxisEndpoint,
                  double axisRatio,
                  double startParameter,
                  double endParameter,
                  boolean isCounterclockwise,
                  DXFGraphics graphics)

Create an elliptical arc corresponding to the specified parameters. Note that this is the most general case of an ellipse, since the major and minor axes need not be parallel to the x or y axes.

Parameters:

center - The center of the ellipse

majorAxisEndpoint - The endpoint of the major axis, relative to the center of the ellipse

axisRatio - The ratio between the length of the minor axis and the length of the major axis

startParameter - Parameter t corresponding to the start point of the arc represented as (a*cos(t), b*sin(t)), rotated so that t = 0 corresponds to the major axis endpoint.

endParameter - Parameter t corresponding to the end point of the arc represented as (a*cos(t), b*sin(t)), rotated so that t = 0 corresponds to the major axis endpoint.

isCounterclockwise - Indicate direction of arc, clockwise or counterclockwise

graphics - The graphics object specifying parameters for the arc (color, thickness)

Method Detail

toDXFString

public java.lang.String toDXFString()

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

Specified by:

toDXFString in interface DXFObject

Overrides:

toDXFString in class DXFGraphicalEntity

getDXFHatchInfo

public java.lang.String getDXFHatchInfo()

Overrides:

getDXFHatchInfo in class DXFGraphicalEntity