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java.lang.Objectuk.ac.starlink.ttools.plot.GraphSurface
public class GraphSurface
Plotting surface for drawing graphs on.
Field Summary |
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Fields inherited from interface uk.ac.starlink.ttools.plot.PlotSurface |
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MAX_COORD |
Constructor Summary | |
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GraphSurface(JComponent component,
boolean xLog,
boolean yLog,
boolean xFlip,
boolean yFlip)
Constructor. |
Method Summary | |
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Point |
dataToGraphics(double x,
double y,
boolean insideOnly)
Converts a point in data space to graphics space. |
Shape |
getClip()
Returns the clip region in which points may be plotted. |
JComponent |
getComponent()
Returns the graphical component on which the plotting surface is displayed. |
double[] |
graphicsToData(int px,
int py,
boolean insideOnly)
Converts a point in graphics space to data space. |
void |
paintSurface(Graphics g)
Paints the plotting surface. |
void |
setBounds(Rectangle bounds)
Sets the rectangle within which data points may be plotted. |
void |
setDataRange(double xlo,
double ylo,
double xhi,
double yhi)
Requests a range of data space values to be visible on this plotting surface. |
void |
setState(PlotState state)
Signals to the plot the characteristics of the plot which will be performed. |
String |
toString()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public GraphSurface(JComponent component, boolean xLog, boolean yLog, boolean xFlip, boolean yFlip)
component
- the component on which this surface will drawxLog
- true iff X axis is logarithmically scaledyLog
- true iff Y axis is logarithmically scaledxFlip
- true iff X axis is invertedyFlip
- true iff Y axis is invertedMethod Detail |
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public Shape getClip()
PlotSurface
Graphics.setClip(java.awt.Shape)
- i.e. probably
a Rectangle.
getClip
in interface PlotSurface
public JComponent getComponent()
PlotSurface
JComponent.paintComponent(java.awt.Graphics)
to give a plotting background in accordance with the most recently
set PlotState.
getComponent
in interface PlotSurface
public void setDataRange(double xlo, double ylo, double xhi, double yhi)
PlotSurface
setDataRange
in interface PlotSurface
xlo
- (approximate) lower bound of X coordinateylo
- (approximate) lower bound of Y coordinatexhi
- (approximate) upper bound of X coordinateyhi
- (approximate) upper bound of Y coordinatepublic void setBounds(Rectangle bounds)
bounds
- the region of the component which represents the
target for data points; annotations may be drawn outside
this regionpublic Point dataToGraphics(double x, double y, boolean insideOnly)
PlotSurface
The coordinates of the returned point must have absolute values
no greater than PlotSurface.MAX_COORD
.
dataToGraphics
in interface PlotSurface
x
- data space X coordinatey
- data space Y coordinateinsideOnly
- true to restrict non-null results to those
within the plotting surface
public double[] graphicsToData(int px, int py, boolean insideOnly)
PlotSurface
graphicsToData
in interface PlotSurface
px
- graphics space X coordinatepy
- graphics space Y coordinateinsideOnly
- true to restrict non-null results to those
within the plotting surface
public void setState(PlotState state)
PlotSurface
PlotSurface.getComponent()
next paints itself it should do so following the specifications
made here.
setState
in interface PlotSurface
state
- plot characteristicspublic void paintSurface(Graphics g)
PlotSurface
Requiring this here isn't very tidy, but following quite a bit of
experimentation I can't work out any other way to do scatter plot
image caching while still drawing to a potentially
hardware-accelerated graphics context
(see ScatterPlot
implementation).
paintSurface
in interface PlotSurface
g
- graphics contextpublic String toString()
toString
in class Object
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