com.imsl.chart
Class Axis

java.lang.Object
  com.imsl.chart.ChartNode
      com.imsl.chart.Axis

All Implemented Interfaces:

Cloneable, Serializable

Direct Known Subclasses:

AxisXY, Pie, Polar

public abstract class Axis

extends ChartNode

The Axis node provides the mapping for all of its children from the user coordinate space to the device (screen) space.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.imsl.chart.ChartNode

AUTOSCALE_DATA, AUTOSCALE_DENSITY, AUTOSCALE_NUMBER, AUTOSCALE_OFF, AUTOSCALE_WINDOW, AXIS_X, AXIS_X_TOP, AXIS_Y, AXIS_Y_RIGHT, BAR_TYPE_HORIZONTAL, BAR_TYPE_VERTICAL, DASH_PATTERN_DASH, DASH_PATTERN_DASH_DOT, DASH_PATTERN_DOT, DASH_PATTERN_SOLID, DATA_TYPE_FILL, DATA_TYPE_LINE, DATA_TYPE_MARKER, DATA_TYPE_PICTURE, FILL_TYPE_GRADIENT, FILL_TYPE_NONE, FILL_TYPE_PAINT, FILL_TYPE_SOLID, LABEL_TYPE_NONE, LABEL_TYPE_PERCENT, LABEL_TYPE_TITLE, LABEL_TYPE_X, LABEL_TYPE_Y, MARKER_TYPE_ASTERISK, MARKER_TYPE_CIRCLE_CIRCLE, MARKER_TYPE_CIRCLE_PLUS, MARKER_TYPE_CIRCLE_X, MARKER_TYPE_DIAMOND_PLUS, MARKER_TYPE_FILLED_CIRCLE, MARKER_TYPE_FILLED_DIAMOND, MARKER_TYPE_FILLED_SQUARE, MARKER_TYPE_FILLED_TRIANGLE, MARKER_TYPE_HOLLOW_CIRCLE, MARKER_TYPE_HOLLOW_DIAMOND, MARKER_TYPE_HOLLOW_SQUARE, MARKER_TYPE_HOLLOW_TRIANGLE, MARKER_TYPE_OCTAGON_PLUS, MARKER_TYPE_OCTAGON_X, MARKER_TYPE_PLUS, MARKER_TYPE_SQUARE_PLUS, MARKER_TYPE_SQUARE_X, MARKER_TYPE_X, TEXT_X_CENTER, TEXT_X_LEFT, TEXT_X_RIGHT, TEXT_Y_BOTTOM, TEXT_Y_CENTER, TEXT_Y_TOP, TRANSFORM_CUSTOM, TRANSFORM_LINEAR, TRANSFORM_LOG

Constructor Summary

Axis(Chart chart)
Contructs an Axis node.

Method Summary

abstract void	mapDeviceToUser(int devX, int devY, double[] userXY) Maps the device coordinates to user coordinates.
abstract void	mapUserToDevice(double userX, double userY, int[] devXY) Maps the user coordinates (userX,userY) to the device coordinates devXY.
void	paint(Draw draw) Paints this node and all of its children.
abstract void	setupMapping() Initializes the mappings between user and coordinate space.

Methods inherited from class com.imsl.chart.ChartNode

addPickListener, clone, clone, clone, clone, firePickListeners, getALT, getAttribute, getAutoscaleInput, getAutoscaleMinimumTimeInterval, getAutoscaleOutput, getAxis, getBackground, getBarGap, getBarType, getBarWidth, getBooleanAttribute, getChart, getChartTitle, getChildren, getClipData, getColorAttribute, getComponent, getConcatenatedViewport, getCustomTransform, getDataType, getDensity, getDoubleAttribute, getDoubleBuffering, getExplode, getFillColor, getFillOutlineColor, getFillOutlineType, getFillPaint, getFillType, getFont, getFontName, getFontSize, getFontStyle, getGradient, getHREF, getImage, getIntegerAttribute, getLabelType, getLegend, getLineColor, getLineDashPattern, getLineWidth, getLocale, getMarkerColor, getMarkerDashPattern, getMarkerSize, getMarkerThickness, getMarkerType, getName, getNumber, getPaint, getParent, getReference, getScreenAxis, getScreenSize, getScreenViewport, getSize, getSkipWeekends, getStringAttribute, getTextAngle, getTextColor, getTextFormat, getTickLength, getTitle, getToolTip, getTransform, getViewport, getX, getY, isAncestorOf, isAttributeSet, isAttributeSetAtThisNode, isBitSet, parseColor, remove, removePickListener, setALT, setAttribute, setAutoscaleInput, setAutoscaleMinimumTimeInterval, setAutoscaleOutput, setBarGap, setBarType, setBarWidth, setChartTitle, setClipData, setCustomTransform, setDataType, setDensity, setDoubleBuffering, setExplode, setFillColor, setFillColor, setFillOutlineColor, setFillOutlineColor, setFillOutlineType, setFillPaint, setFillPaint, setFillPaint, setFillType, setFont, setFontName, setFontSize, setFontStyle, setGradient, setGradient, setGradient, setHREF, setImage, setImage, setLabelType, setLineColor, setLineColor, setLineDashPattern, setLineWidth, setLocale, setMarkerColor, setMarkerColor, setMarkerDashPattern, setMarkerSize, setMarkerThickness, setMarkerType, setName, setNumber, setPaint, setReference, setScreenSize, setSize, setSkipWeekends, setTextAngle, setTextColor, setTextColor, setTextFormat, setTextFormat, setTickLength, setTitle, setTitle, setToolTip, setTransform, setViewport, setViewport, setX, setY, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Axis

public Axis(Chart chart)

Contructs an Axis node. Its parent must be a Chart node. This node's "Axis" attribute has itself as a value, so that decendent nodes can easily obtain their controlling axis node.

Parameters:

chart - a Chart object, the parent of this node

Method Detail

paint

public void paint(Draw draw)

Paints this node and all of its children. This is normally called only by the paint method in this node's parent.

Specified by:

paint in class ChartNode

Parameters:

draw - a Draw object which specifies the chart tree to be rendered on the screen

mapUserToDevice

public abstract void mapUserToDevice(double userX,
                                     double userY,
                                     int[] devXY)

Maps the user coordinates (userX,userY) to the device coordinates devXY.

Parameters:

userX - a double which specifies the user x-coordinate

userY - a double which specifies the user y-coordinate

devXY - an int[2] array on input, on output, the device coordinates

mapDeviceToUser

public abstract void mapDeviceToUser(int devX,
                                     int devY,
                                     double[] userXY)

Maps the device coordinates to user coordinates.

Parameters:

devX - an int which specifies the device x-coordinate

devY - an int which specifies the device y-coordinate

userXY - an int[2] array on input, on output, the user coordinates

setupMapping

public abstract void setupMapping()

Initializes the mappings between user and coordinate space. This must be called whenever the screen size, the window or the viewport may have changed. Generally, it is safest to call this each time the chart is repainted.