?? contourplot.java
字號:
getRangeCrosshairValue(),
getRangeCrosshairStroke(),
getRangeCrosshairPaint());
}
}
else if (this.clipPath != null) {
getClipPath().draw(g2, dataArea, this.domainAxis, this.rangeAxis);
}
}
/**
* Fills the plot.
*
* @param g2 the graphics device.
* @param dataArea the area within which the data is being drawn.
* @param info collects information about the drawing.
* @param plot the plot (can be used to obtain standard color
* information etc).
* @param horizontalAxis the domain (horizontal) axis.
* @param verticalAxis the range (vertical) axis.
* @param colorBar the color bar axis.
* @param data the dataset.
* @param crosshairState information about crosshairs on a plot.
*/
public void contourRenderer(Graphics2D g2,
Rectangle2D dataArea,
PlotRenderingInfo info,
ContourPlot plot,
ValueAxis horizontalAxis,
ValueAxis verticalAxis,
ColorBar colorBar,
ContourDataset data,
CrosshairState crosshairState) {
// setup for collecting optional entity info...
Rectangle2D.Double entityArea = null;
EntityCollection entities = null;
if (info != null) {
entities = info.getOwner().getEntityCollection();
}
Rectangle2D.Double rect = null;
rect = new Rectangle2D.Double();
//turn off anti-aliasing when filling rectangles
Object antiAlias = g2.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
g2.setRenderingHint(
RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF
);
// get the data points
Number[] xNumber = data.getXValues();
Number[] yNumber = data.getYValues();
Number[] zNumber = data.getZValues();
double[] x = new double[xNumber.length];
double[] y = new double[yNumber.length];
for (int i = 0; i < x.length; i++) {
x[i] = xNumber[i].doubleValue();
y[i] = yNumber[i].doubleValue();
}
int[] xIndex = data.indexX();
int[] indexX = data.getXIndices();
boolean vertInverted = ((NumberAxis) verticalAxis).isInverted();
boolean horizInverted = false;
if (horizontalAxis instanceof NumberAxis) {
horizInverted = ((NumberAxis) horizontalAxis).isInverted();
}
double transX = 0.0;
double transXm1 = 0.0;
double transXp1 = 0.0;
double transDXm1 = 0.0;
double transDXp1 = 0.0;
double transDX = 0.0;
double transY = 0.0;
double transYm1 = 0.0;
double transYp1 = 0.0;
double transDYm1 = 0.0;
double transDYp1 = 0.0;
double transDY = 0.0;
int iMax = xIndex[xIndex.length - 1];
for (int k = 0; k < x.length; k++) {
int i = xIndex[k];
if (indexX[i] == k) { // this is a new column
if (i == 0) {
transX = horizontalAxis.valueToJava2D(
x[k], dataArea, RectangleEdge.BOTTOM
);
transXm1 = transX;
transXp1 = horizontalAxis.valueToJava2D(
x[indexX[i + 1]], dataArea, RectangleEdge.BOTTOM
);
transDXm1 = Math.abs(0.5 * (transX - transXm1));
transDXp1 = Math.abs(0.5 * (transX - transXp1));
}
else if (i == iMax) {
transX = horizontalAxis.valueToJava2D(
x[k], dataArea, RectangleEdge.BOTTOM
);
transXm1 = horizontalAxis.valueToJava2D(
x[indexX[i - 1]], dataArea, RectangleEdge.BOTTOM
);
transXp1 = transX;
transDXm1 = Math.abs(0.5 * (transX - transXm1));
transDXp1 = Math.abs(0.5 * (transX - transXp1));
}
else {
transX = horizontalAxis.valueToJava2D(
x[k], dataArea, RectangleEdge.BOTTOM
);
transXp1 = horizontalAxis.valueToJava2D(
x[indexX[i + 1]], dataArea, RectangleEdge.BOTTOM
);
transDXm1 = transDXp1;
transDXp1 = Math.abs(0.5 * (transX - transXp1));
}
if (horizInverted) {
transX -= transDXp1;
}
else {
transX -= transDXm1;
}
transDX = transDXm1 + transDXp1;
transY = verticalAxis.valueToJava2D(
y[k], dataArea, RectangleEdge.LEFT
);
transYm1 = transY;
if (k + 1 == y.length) {
continue;
}
transYp1 = verticalAxis.valueToJava2D(
y[k + 1], dataArea, RectangleEdge.LEFT
);
transDYm1 = Math.abs(0.5 * (transY - transYm1));
transDYp1 = Math.abs(0.5 * (transY - transYp1));
}
else if ((i < indexX.length - 1
&& indexX[i + 1] - 1 == k) || k == x.length - 1) {
// end of column
transY = verticalAxis.valueToJava2D(
y[k], dataArea, RectangleEdge.LEFT
);
transYm1 = verticalAxis.valueToJava2D(
y[k - 1], dataArea, RectangleEdge.LEFT
);
transYp1 = transY;
transDYm1 = Math.abs(0.5 * (transY - transYm1));
transDYp1 = Math.abs(0.5 * (transY - transYp1));
}
else {
transY = verticalAxis.valueToJava2D(
y[k], dataArea, RectangleEdge.LEFT
);
transYp1 = verticalAxis.valueToJava2D(
y[k + 1], dataArea, RectangleEdge.LEFT
);
transDYm1 = transDYp1;
transDYp1 = Math.abs(0.5 * (transY - transYp1));
}
if (vertInverted) {
transY -= transDYm1;
}
else {
transY -= transDYp1;
}
transDY = transDYm1 + transDYp1;
rect.setRect(transX, transY, transDX, transDY);
if (zNumber[k] != null) {
g2.setPaint(colorBar.getPaint(zNumber[k].doubleValue()));
g2.fill(rect);
}
else if (this.missingPaint != null) {
g2.setPaint(this.missingPaint);
g2.fill(rect);
}
entityArea = rect;
// add an entity for the item...
if (entities != null) {
String tip = "";
if (getToolTipGenerator() != null) {
tip = this.toolTipGenerator.generateToolTip(data, k);
}
// Shape s = g2.getClip();
// if (s.contains(rect) || s.intersects(rect)) {
String url = null;
// if (getURLGenerator() != null) { //dmo: look at this later
// url = getURLGenerator().generateURL(data, series, item);
// }
// Unlike XYItemRenderer, we need to clone entityArea since it
// reused.
ContourEntity entity = new ContourEntity(
(Rectangle2D.Double) entityArea.clone(), tip, url
);
entity.setIndex(k);
entities.add(entity);
// }
}
// do we need to update the crosshair values?
if (plot.isDomainCrosshairLockedOnData()) {
if (plot.isRangeCrosshairLockedOnData()) {
// both axes
crosshairState.updateCrosshairPoint(
x[k], y[k], transX, transY, PlotOrientation.VERTICAL
);
}
else {
// just the horizontal axis...
crosshairState.updateCrosshairX(transX);
}
}
else {
if (plot.isRangeCrosshairLockedOnData()) {
// just the vertical axis...
crosshairState.updateCrosshairY(transY);
}
}
}
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, antiAlias);
return;
}
/**
* Draws the visual representation of a single data item.
*
* @param g2 the graphics device.
* @param dataArea the area within which the data is being drawn.
* @param info collects information about the drawing.
* @param plot the plot (can be used to obtain standard color
* information etc).
* @param domainAxis the domain (horizontal) axis.
* @param rangeAxis the range (vertical) axis.
* @param colorBar the color bar axis.
* @param data the dataset.
* @param crosshairState information about crosshairs on a plot.
*/
public void pointRenderer(Graphics2D g2,
Rectangle2D dataArea,
PlotRenderingInfo info,
ContourPlot plot,
ValueAxis domainAxis,
ValueAxis rangeAxis,
ColorBar colorBar,
ContourDataset data,
CrosshairState crosshairState) {
// setup for collecting optional entity info...
RectangularShape entityArea = null;
EntityCollection entities = null;
if (info != null) {
entities = info.getOwner().getEntityCollection();
}
// Rectangle2D.Double rect = null;
// rect = new Rectangle2D.Double();
RectangularShape rect = new Ellipse2D.Double();
//turn off anti-aliasing when filling rectangles
Object antiAlias = g2.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
g2.setRenderingHint(
RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF
);
// if (tooltips!=null) tooltips.clearToolTips(); // reset collection
// get the data points
Number[] xNumber = data.getXValues();
Number[] yNumber = data.getYValues();
Number[] zNumber = data.getZValues();
double[] x = new double[xNumber.length];
double[] y = new double[yNumber.length];
for (int i = 0; i < x.length; i++) {
x[i] = xNumber[i].doubleValue();
y[i] = yNumber[i].doubleValue();
}
double transX = 0.0;
double transDX = 0.0;
double transY = 0.0;
double transDY = 0.0;
double size = dataArea.getWidth() * this.ptSizePct;
for (int k = 0; k < x.length; k++) {
transX = domainAxis.valueToJava2D(
x[k], dataArea, RectangleEdge.BOTTOM
) - 0.5 * size;
transY = rangeAxis.valueToJava2D(y[k], dataArea, RectangleEdge.LEFT)
- 0.5 * size;
transDX = size;
transDY = size;
rect.setFrame(transX, transY, transDX, transDY);
if (zNumber[k] != null) {
g2.setPaint(colorBar.getPaint(zNumber[k].doubleValue()));
g2.fill(rect);
}
else if (this.missingPaint != null) {
g2.setPaint(this.missingPaint);
g2.fill(rect);
}
entityArea = rect;
// add an entity for the item...
if (entities != null) {
String tip = null;
if (getToolTipGenerator() != null) {
tip = this.toolTipGenerator.generateToolTip(data, k);
}
String url = null;
// if (getURLGenerator() != null) { //dmo: look at this later
// url = getURLGenerator().generateURL(data, series, item);
// }
// Unlike XYItemRenderer, we need to clone entityArea since it
// reused.
ContourEntity entity = new ContourEntity(
(RectangularShape) entityArea.clone(), tip, url
);
entity.setIndex(k);
entities.add(entity);
}
// do we need to update the crosshair values?
if (plot.isDomainCrosshairLockedOnData()) {
if (plot.isRangeCrosshairLockedOnData()) {
// both axes
crosshairState.updateCrosshairPoint(
x[k], y[k], transX, transY, PlotOrientation.VERTICAL
);
}
else {
// just the horizontal axis...
crosshairState.updateCrosshairX(transX);
}
}
else {
if (plot.isRangeCrosshairLockedOnData()) {
// just the vertical axis...
crosshairState.updateCrosshairY(transY);
}
}
}
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, antiAlias);
return;
}
/**
* Utility method for drawing a crosshair on the chart (if required).
*
* @param g2 The graphics device.
* @param dataArea The data area.
* @param value The coordinate, where to draw the line.
* @param stroke The stroke to use.
* @param paint The paint to use.
*/
protected void drawVerticalLine(Graphics2D g2, Rectangle2D dataArea,
double value, Stroke stroke, Paint paint) {
double xx = getDomainAxis().valueToJava2D(
value, dataArea, RectangleEdge.BOTTOM
);
Line2D line = new Line2D.Double(
xx, dataArea.getMinY(), xx, dataArea.getMaxY()
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