Package org.pathvisio.libgpml.model.connector

Class CurvedConnectorShape

java.lang.Object

org.pathvisio.libgpml.model.connector.AbstractConnector

org.pathvisio.libgpml.model.connector.SegmentedConnector

org.pathvisio.libgpml.model.connector.ElbowConnectorShape

org.pathvisio.libgpml.model.connector.CurvedConnectorShape

All Implemented Interfaces:

ConnectorShape

public class CurvedConnectorShape
extends ElbowConnectorShape

Implements a curved connector that draws curved lines between the segments.

Author:

thomas

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	CurvedConnectorShape.CurvedSegment	Segment for curved connector, also stores bezier control points

Nested classes/interfaces inherited from interface org.pathvisio.libgpml.model.connector.ConnectorShape

ConnectorShape.Segment, ConnectorShape.WayPoint

Field Summary

Fields

Modifier and Type	Field	Description
(package private) CurvedConnectorShape.CurvedSegment[]	curvedSegments
(package private) ConnectorShape.Segment[]	curveHigh
(package private) ConnectorShape.Segment[]	curveLow
(package private) ConnectorShape.Segment[]	elbowSegments
(package private) static int	NRSTEP_HIGH
(package private) static int	NRSTEP_LOW

Fields inherited from interface org.pathvisio.libgpml.model.connector.ConnectorShape

AXIS_X, AXIS_Y

Constructor Summary

Constructors

Constructor	Description
CurvedConnectorShape()

Method Summary

Modifier and Type	Method	Description
private double	bezier(double p0, double p1, double p2, double p3, double t)	Function for the cubic bezier curve
protected ConnectorShape.Segment[]	calculateCurve(int nrStep)	Calculates the bezier curve, using NRSTEP segments for each curvedSegment.
protected CurvedConnectorShape.CurvedSegment[]	calculateCurvedSegments(ConnectorShape.Segment[] segments)	Based on the given elbow segments, calculate a new segment and control points for each bezier curve.
protected ConnectorShape.Segment[]	calculateSegments(ConnectorRestrictions restrictions, ConnectorShape.WayPoint[] waypoints)	Also calculates curvedSegments and curve.
protected java.awt.Shape	calculateShape()	Calculates shape from the width of the line endings.
java.awt.Shape	calculateShape(ConnectorShape.Segment[] segments)	Calculates shapes from the width of the line endings.
java.awt.geom.Point2D	fromLineCoordinate(double l)	Translates a 1-dimensional line coordinate to a 2-dimensional view coordinate.
private double	pow(double a, double b)	Function for the base to the exponent power.
protected ConnectorShape.WayPoint[]	wayPointsToCenter(ConnectorShape.WayPoint[] waypoints, ConnectorShape.Segment[] segments)	Sets all waypoints to the center of the segments.

Methods inherited from class org.pathvisio.libgpml.model.connector.ElbowConnectorShape

calculateWayPoint, calculateWayPoints, createStraightSegment, getDirectionX, getDirectionY, getNrSegments, hasValidWaypoints, recalculateShape

Methods inherited from class org.pathvisio.libgpml.model.connector.SegmentedConnector

fromLineCoordinate, getTotalLength, toLineCoordinate

Methods inherited from class org.pathvisio.libgpml.model.connector.AbstractConnector

calculateAdjustedShape, getSegments, getShape, getWayPoints, setSegments, setShape, setWayPoints

Methods inherited from class java.lang.Object

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

Field Details

elbowSegments

ConnectorShape.Segment[] elbowSegments

curvedSegments

CurvedConnectorShape.CurvedSegment[] curvedSegments

curveHigh

ConnectorShape.Segment[] curveHigh

curveLow

ConnectorShape.Segment[] curveLow

NRSTEP_LOW

static final int NRSTEP_LOW

See Also:

Constant Field Values

NRSTEP_HIGH

static final int NRSTEP_HIGH

See Also:

Constant Field Values

Constructor Details

CurvedConnectorShape

public CurvedConnectorShape()

Method Details

calculateShape

protected java.awt.Shape calculateShape()

Calculates shape from the width of the line endings.

Overrides:

calculateShape in class ElbowConnectorShape

Returns:

the calculated shape.

calculateShape

public java.awt.Shape calculateShape(ConnectorShape.Segment[] segments)

Calculates shapes from the width of the line endings.

Overrides:

calculateShape in class SegmentedConnector

Parameters:

segments - the segment array.

Returns:

path the Shape.

calculateSegments

protected ConnectorShape.Segment[] calculateSegments(ConnectorRestrictions restrictions,
ConnectorShape.WayPoint[] waypoints)

Also calculates curvedSegments and curve. See calculateCurvedSegments. See calculateCurve.

Overrides:

calculateSegments in class ElbowConnectorShape

Parameters:

restrictions - the connector restrictions.

waypoints - the waypoint array.

Returns:

curveLow the segment array.

calculateCurvedSegments

protected CurvedConnectorShape.CurvedSegment[] calculateCurvedSegments(ConnectorShape.Segment[] segments)

Based on the given elbow segments, calculate a new segment and control points for each bezier curve.

Parameters:

segments - the segment array.

Returns:

curvedSegments the curvedsegment array

calculateCurve

protected ConnectorShape.Segment[] calculateCurve(int nrStep)

Calculates the bezier curve, using NRSTEP segments for each curvedSegment.

Parameters:

nrStep - the number of steps.

Returns:

An array with the curve broken down into small segments.

See Also:

calculateCurvedSegments(org.pathvisio.libgpml.model.connector.ConnectorShape.Segment[])

bezier

private double bezier(double p0,
double p1,
double p2,
double p3,
double t)

Function for the cubic bezier curve

Parameters:

p0 - The start coordinate

p1 - The first helper coordinate

p2 - The second helper coordinate

p3 - The end coordinate

t - The relative position in the curve (value between 0 and 1)

Returns:

The coordinate on the curve for t

pow

private double pow(double a,
double b)

Function for the base to the exponent power.

Parameters:

a - the base.

b - the exponent.

Returns:

the base to the exponent power.

fromLineCoordinate

public java.awt.geom.Point2D fromLineCoordinate(double l)

Description copied from class: SegmentedConnector

Translates a 1-dimensional line coordinate to a 2-dimensional view coordinate. The 1-dimensional line coordinate is position objects that are attached to the line.

Specified by:

fromLineCoordinate in interface ConnectorShape

Overrides:

fromLineCoordinate in class SegmentedConnector

Parameters:

l - the double.

Returns:

...

wayPointsToCenter

protected ConnectorShape.WayPoint[] wayPointsToCenter(ConnectorShape.WayPoint[] waypoints,
ConnectorShape.Segment[] segments)

Description copied from class: ElbowConnectorShape

Sets all waypoints to the center of the segments.

Overrides:

wayPointsToCenter in class ElbowConnectorShape

Parameters:

waypoints - the waypoint array.

segments - the segment array.

Returns:

...