org.das2.event

Class WaypointsDragRenderer

java.lang.Object

org.das2.event.AbstractDragRenderer

org.das2.event.WaypointsDragRenderer

All Implemented Interfaces:

DragRenderer

public class WaypointsDragRenderer
extends AbstractDragRenderer

draw a pathway of a given width including a set of waypoints.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PROP_WIDTH

Fields inherited from interface org.das2.event.DragRenderer

ghostColor

Constructor Summary

Constructors

Constructor and Description
WaypointsDragRenderer(DasCanvasComponent parent) draws a boxed region of some vertical width along a path.

Method Summary

Modifier and Type	Method and Description
void	addWayPoint() add the current location, recorded from the last renderDrag operation, to the list of way points.
void	clear(java.awt.Graphics g) this is not used, and is left over from an old version of the library.
java.awt.Rectangle	getBoundingBox() return a rectangle that bounds the data.
int	getWidth() get the vertical width in pixels.
java.awt.Rectangle[]	renderDrag(java.awt.Graphics g1, java.awt.Point p1, java.awt.Point p2) draws the drag for mousing from p1 to p2, and returns an array of Rectangles covering the rendering.
void	setWidth(int width) set the vertical width in pixels.
protected QDataSet	whereWithin(DasAxis xaxis, DasAxis yaxis, QDataSet xx, QDataSet yy) returns a list of indices where the rank 1 yy is within the pathway.

Methods inherited from class org.das2.event.AbstractDragRenderer

getMouseDragEvent, getParent, isPointSelection, isUpdatingDragSelection, setParent

Methods inherited from class java.lang.Object

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

Field Detail

PROP_WIDTH

public static final java.lang.String PROP_WIDTH

See Also:

Constant Field Values

Constructor Detail

WaypointsDragRenderer

public WaypointsDragRenderer(DasCanvasComponent parent)

draws a boxed region of some vertical width along a path.

Parameters:

parent -

Method Detail

getWidth

public int getWidth()

get the vertical width in pixels.

Returns:

the vertical width

setWidth

public void setWidth(int width)

set the vertical width in pixels.

Parameters:

width -

clear

public void clear(java.awt.Graphics g)

Description copied from class: AbstractDragRenderer

this is not used, and is left over from an old version of the library.

Specified by:

clear in interface DragRenderer

Overrides:

clear in class AbstractDragRenderer

Parameters:

g - the graphics context

addWayPoint

public void addWayPoint()

add the current location, recorded from the last renderDrag operation, to the list of way points.

renderDrag

public java.awt.Rectangle[] renderDrag(java.awt.Graphics g1,
                                       java.awt.Point p1,
                                       java.awt.Point p2)

Description copied from interface: DragRenderer

draws the drag for mousing from p1 to p2, and returns an array of Rectangles covering the rendering. If nothing is drawn, then an array of length zero should be returned, and nulls are allowed in the array. p1 and p2, and g are in the canvas frame of reference.

Parameters:

g1 - the graphics context for rendering

p1 - the click point

p2 - the current mouse position during drag and release.

Returns:

whereWithin

protected QDataSet whereWithin(DasAxis xaxis,
                               DasAxis yaxis,
                               QDataSet xx,
                               QDataSet yy)

returns a list of indices where the rank 1 yy is within the pathway. This breaks the package.html guidance that this not work with data and units, and may change.

Parameters:

xaxis - the axis for horizontal transforms

yaxis - the axis for vertical transforms

xx - the rank 0 point for the data

yy - the rank 1 data points

Returns:

a list of indices into yy.

getBoundingBox

public java.awt.Rectangle getBoundingBox()

return a rectangle that bounds the data.

Returns: