/**
* ******************************************************************************************
* Draws the chart
*
* @param axisChart
* @param iAxisChartDataSet
* @throws PropertyException
* *******************************************************************************************
*/
static void render(AxisChart axisChart, IAxisChartDataSet iAxisChartDataSet)
throws PropertyException {
Graphics2D g2d = axisChart.getGraphics2D();
LineChartProperties lineChartProperties =
(LineChartProperties) iAxisChartDataSet.getChartTypeProperties();
lineChartProperties.validate(iAxisChartDataSet);
// DataAxisProperties dataAxisProperties= (DataAxisProperties)
// axisChart.getAxisProperties().getYAxisProperties();
IDataSeries iDataSeries = (IDataSeries) axisChart.getIAxisDataSeries();
// ---cache the computed values
float[][] yAxisCoordinates =
new float[iAxisChartDataSet.getNumberOfDataSets()]
[iAxisChartDataSet.getNumberOfDataItems()];
// ---need this for image map calculation
float xMapCoordinate = axisChart.getXAxis().getTickStart();
// LOOP
for (int j = 0; j < iAxisChartDataSet.getNumberOfDataItems(); j++) {
// LOOP
for (int i = 0; i < yAxisCoordinates.length; i++) {
if (iAxisChartDataSet.getValue(i, j) != Double.NaN) {
yAxisCoordinates[i][j] =
axisChart
.getYAxis()
.computeAxisCoordinate(
axisChart.getYAxis().getOrigin(),
iAxisChartDataSet.getValue(i, j),
axisChart.getYAxis().getScaleCalculator().getMinValue());
// ---if we are generating an ImageMap, store the image coordinates
if (axisChart.getGenerateImageMapFlag()) {
String label;
if (axisChart.getXAxis().getAxisLabelsGroup() != null) {
label = axisChart.getXAxis().getAxisLabelsGroup().getTextTag(j).getText();
} else {
label = null;
}
axisChart
.getImageMap()
.addImageMapArea(
new CircleMapArea(
xMapCoordinate,
yAxisCoordinates[i][j],
iAxisChartDataSet.getValue(i, j),
label,
iAxisChartDataSet.getLegendLabel(i)));
}
} else {
yAxisCoordinates[i][j] = Float.NaN;
}
}
xMapCoordinate += axisChart.getXAxis().getScalePixelWidth();
}
AffineTransform originalTransform = null;
double[] cornerXOffset = null;
double[] cornerYOffset = null;
// ---check if there are any points to display
if (lineChartProperties.getShapes() != null) {
// ---when centering the shapes on the points, need x and y offset to do this
cornerXOffset = new double[iAxisChartDataSet.getNumberOfDataSets()];
cornerYOffset = new double[iAxisChartDataSet.getNumberOfDataSets()];
// ---get the original transform so can reset it.
originalTransform = g2d.getTransform();
Rectangle2D rectangle;
// LOOP
// ---pre-compute the dimensions of each Shape so do not do it in loop.
for (int i = 0; i < iAxisChartDataSet.getNumberOfDataSets(); i++) {
if (lineChartProperties.getShapes()[i] != null) {
rectangle = lineChartProperties.getShapes()[i].getBounds2D();
cornerXOffset[i] = rectangle.getWidth() / 2;
cornerYOffset[i] = rectangle.getHeight() / 2;
}
}
}
// ---init for first segment
Line2D.Float line =
new Line2D.Float(
axisChart.getXAxis().getTickStart(),
yAxisCoordinates[0][0],
axisChart.getXAxis().getTickStart(),
yAxisCoordinates[0][0]);
// ---make sure not plotting a chart with only one data point.
if (yAxisCoordinates[0].length > 1) {
line.y2 = yAxisCoordinates[0][1];
}
// LOOP
// ---draw each line to the image
for (int i = 0; i < yAxisCoordinates.length; i++) {
line.x1 = axisChart.getXAxis().getTickStart();
line.y1 = yAxisCoordinates[i][0];
line.x2 = line.x1;
// LOOP
for (int j = 1; j < yAxisCoordinates[0].length; j++) {
// ---if current point on line should be drawn
if (!Float.isNaN(yAxisCoordinates[i][j])) {
// ---if the previous point was not drawn, no line
if (Float.isNaN(yAxisCoordinates[i][j - 1])) {
line.x2 += axisChart.getXAxis().getScalePixelWidth();
line.x1 = line.x2;
line.y1 = yAxisCoordinates[i][j];
line.y2 = yAxisCoordinates[i][j];
continue;
}
line.x2 += axisChart.getXAxis().getScalePixelWidth();
line.y2 = yAxisCoordinates[i][j];
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.setStroke(lineChartProperties.getLineStrokes()[i]);
g2d.draw(line);
// ---plot the Point
if (lineChartProperties.getShapes()[i] != null) {
// ---translate the Shape into position.
g2d.translate(line.x1 - cornerXOffset[i], line.y1 - cornerYOffset[i]);
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.fill(lineChartProperties.getShapes()[i]);
// ---translate back to the original position
g2d.setTransform(originalTransform);
}
line.x1 = line.x2;
line.y1 = line.y2;
} else {
if ((!Float.isNaN(yAxisCoordinates[i][j - 1]))
&& (lineChartProperties.getShapes()[i] != null)) {
// ---translate the Shape into position.
g2d.translate(line.x1 - cornerXOffset[i], line.y1 - cornerYOffset[i]);
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.fill(lineChartProperties.getShapes()[i]);
// ---translate back to the original position
g2d.setTransform(originalTransform);
}
line.x2 += axisChart.getXAxis().getScalePixelWidth();
line.x1 = line.x2;
}
}
// ---put the last shape on the line
if ((!Float.isNaN(yAxisCoordinates[i][yAxisCoordinates[i].length - 1]))
&& (lineChartProperties.getShapes()[i] != null)) {
// ---translate the Shape into position.
g2d.translate(line.x2 - cornerXOffset[i], line.y2 - cornerYOffset[i]);
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.fill(lineChartProperties.getShapes()[i]);
// ---translate back to the original position
g2d.setTransform(originalTransform);
}
}
}
/**
* ******************************************************************************************
* Draws the chart
*
* @param axisChart
* @param iAxisChartDataSet
* *******************************************************************************************
*/
static void render(AxisChart axisChart, IAxisChartDataSet iAxisChartDataSet) {
// ---hopefully eliminate support requests asking about this...
if (axisChart.getImageMap() != null) {
// todo should we do a point image map?
throw new ImageMapNotSupportedException(
"HTML client-side image maps are not supported on Area Charts.");
}
// AreaChartProperties areaChartProperties=(AreaChartProperties)
// iAxisChartDataSet.getChartTypeProperties();
float xPosition = axisChart.getXAxis().getTickStart();
GeneralPath generalPaths[] = new GeneralPath[iAxisChartDataSet.getNumberOfDataSets()];
// ---AreaCharts can not be drawn on a horizontal axis so y-axis will always be the data axis
DataAxisProperties dataAxisProperties =
(DataAxisProperties) axisChart.getAxisProperties().getYAxisProperties();
// LOOP
// ---initial postion of each line must be set with call to moveTo()
// ---Do this here so every point does not have to check....if( i == 0 )... in loop
for (int i = 0; i < generalPaths.length; i++) {
generalPaths[i] = new GeneralPath();
generalPaths[i].moveTo(xPosition, axisChart.getYAxis().getZeroLineCoordinate());
generalPaths[i].lineTo(
xPosition,
axisChart
.getYAxis()
.computeAxisCoordinate(
axisChart.getYAxis().getOrigin(),
iAxisChartDataSet.getValue(i, 0),
axisChart.getYAxis().getScaleCalculator().getMinValue()));
}
// LOOP
for (int j = 1; j < iAxisChartDataSet.getNumberOfDataItems(); j++) {
xPosition += axisChart.getXAxis().getScalePixelWidth();
// LOOP
for (int i = 0; i < generalPaths.length; i++) {
generalPaths[i].lineTo(
xPosition,
axisChart
.getYAxis()
.computeAxisCoordinate(
axisChart.getYAxis().getOrigin(),
iAxisChartDataSet.getValue(i, j),
axisChart.getYAxis().getScaleCalculator().getMinValue()));
}
}
Area[] areas = new Area[generalPaths.length];
// LOOP
// ---close the path. Do this here so do not have to check if last every pass through above
// loop.
for (int i = 0; i < generalPaths.length; i++) {
generalPaths[i].lineTo(xPosition, axisChart.getYAxis().getZeroLineCoordinate());
generalPaths[i].closePath();
areas[i] = new Area(generalPaths[i]);
}
Graphics2D g2d = axisChart.getGraphics2D();
// LOOP
// ---draw each path to the image
for (int i = 0; i < areas.length; i++) {
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.fill(areas[i]);
}
}