org.das2.graph

Class VectorPlotRenderer

java.lang.Object

org.das2.graph.Renderer

org.das2.graph.VectorPlotRenderer

All Implemented Interfaces:

Displayable, Editable, DataSetConsumer

public class VectorPlotRenderer
extends Renderer

Draw vectors as arrows, from a dataset[:,4] where dataset[0,:] is x,y,dx,dy.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PROP_SCALE property name for the scale.
protected double	scale

Fields inherited from class org.das2.graph.Renderer

bottomDecorator, colorBar, control, CONTROL_KEY_COLOR, CONTROL_KEY_COLOR_TABLE, CONTROL_KEY_DRAW_ERROR, CONTROL_KEY_FILL_COLOR, CONTROL_KEY_FILL_DIRECTION, CONTROL_KEY_FILL_TEXTURE, CONTROL_KEY_FONT_SIZE, CONTROL_KEY_LINE_STYLE, CONTROL_KEY_LINE_THICK, CONTROL_KEY_MODULO_X, CONTROL_KEY_MODULO_Y, CONTROL_KEY_REFERENCE, CONTROL_KEY_SPECIAL_COLORS, CONTROL_KEY_SYMBOL, CONTROL_KEY_SYMBOL_SIZE, drawLegendLabel, ds, firstValidIndex, id, lastException, lastValidIndex, legendLabel, logger, MARKER_DATASET, MARKER_X_AXIS_RANGE, MARKER_Y_AXIS_RANGE, needWorkMarkers, PROP_ACTIVE, PROP_BOTTOMDECORATOR, PROP_COLORBAR, PROP_CONTROL, PROP_DRAWLEGENDLABEL, PROP_ID, PROP_LEGENDLABEL, PROP_RECORDFILE, PROP_TOPDECORATOR, propertyChangeSupport, renderException, topDecorator

Constructor Summary

Constructors

Constructor and Description
VectorPlotRenderer()

Method Summary

Modifier and Type	Method and Description
static boolean	acceptsData(QDataSet ds) return true if the renderer accepts data in this form.
static QDataSet	doAutorange(QDataSet ds) autorange on the data, returning a rank 2 bounds for the dataset.
double	getScale() get the scale relating the length of the vector (dx and dy, the last two columns) to the positions of the vector (in the first two columns).
void	render(java.awt.Graphics2D g1, DasAxis xAxis, DasAxis yAxis) Render is called whenever the image needs to be refreshed or the content has changed.
void	setScale(double scale) set the scale relating the length of the vector (dx and dy, the last two columns) to the positions of the vector (in the first two columns).

Methods inherited from class org.das2.graph.Renderer

acceptContext, acceptsDataSet, addPropertyChangeListener, addPropertyChangeListener, addToStats, decodeDatum, decodeFillStyle, decodePlotSymbolConnectorControl, decodePlotSymbolControl, drawListIcon, encodeBooleanControl, encodeColorControl, encodeDatum, encodeFillStyle, encodePlotSymbolConnectorControl, encodePlotSymbolControl, formatControl, getAffineTransform, getBooleanControl, getBottomDecorator, getColorBar, getColorControl, getConsumedDataSet, getControl, getControl, getDataLoader, getDataSet, getDataSetDescriptor, getDataSetID, getDatumControl, getDoubleArrayControl, getDoubleControl, getId, getIntegerControl, getInternalDataSet, getLastException, getLegendLabel, getListIcon, getListLabel, getParent, getRenderCount, getStatsFile, getTopDecorator, getUpdateCount, getXmemento, getYmemento, hasControl, incrementRenderCount, incrementUpdateCount, installRenderer, invalidateParentCacheImage, isActive, isDrawLegendLabel, isDumpDataSet, isTableDataSet, parseControl, parseLayoutString, postException, postMessage, postMessage, refresh, refreshImage, removePropertyChangeListener, removePropertyChangeListener, renderException, resetCounters, setActive, setBottomDecorator, setColorBar, setControl, setDataSet, setDataSetDescriptor, setDataSetID, setDataSetLoader, setDrawLegendLabel, setDumpDataSet, setException, setId, setLastException, setLegendLabel, setParent, setStatsFile, setTopDecorator, setUpFont, setUpFont, uninstallRenderer, update, updateCacheImage, updateImmediately, updatePlotImage

Methods inherited from class java.lang.Object

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

Field Detail

scale

protected double scale

PROP_SCALE

public static final java.lang.String PROP_SCALE

property name for the scale.

See Also:

getScale(), Constant Field Values

Constructor Detail

VectorPlotRenderer

public VectorPlotRenderer()

Method Detail

acceptsData

public static boolean acceptsData(QDataSet ds)

return true if the renderer accepts data in this form. This renderer needs rank 2 data with 4 columns,

Parameters:

ds -

Returns:

doAutorange

public static QDataSet doAutorange(QDataSet ds)

autorange on the data, returning a rank 2 bounds for the dataset.

Parameters:

ds - the dataset to autorange.

Returns:

a bounds dataset, where result[0,:] is the xrange and result[1,:] is the yrange.

getScale

public double getScale()

get the scale relating the length of the vector (dx and dy, the last two columns) to the positions of the vector (in the first two columns).

Returns:

the scale

setScale

public void setScale(double scale)

set the scale relating the length of the vector (dx and dy, the last two columns) to the positions of the vector (in the first two columns). Default is 1.

Parameters:

scale - the new scale

render

public void render(java.awt.Graphics2D g1,
                   DasAxis xAxis,
                   DasAxis yAxis)

Description copied from class: Renderer

Render is called whenever the image needs to be refreshed or the content has changed. This operation should occur with an animation-interactive time scale, and an image should be cached when this is not possible. The graphics object will have its origin at the upper-left corner of the screen.

Specified by:

render in class Renderer

Parameters:

g1 - the graphics context in the canvas reference frame.

xAxis - the axis relating x data coordinates to horizontal pixel coordinates

yAxis - the axis relating y data coordinates to horizontal pixel coordinates