/**
* Updates tick label for date axis.
*
* @param length the length of axis
*/
private void updateTickLabelForDateAxis(int length) {
double min = axis.getRange().lower;
double max = axis.getRange().upper;
double gridStepHint = Math.abs(max - min) / length * axis.getTick().getTickMarkStepHint();
timeUnit = getTimeUnit(gridStepHint);
if (timeUnit == Calendar.MILLISECOND
|| timeUnit == Calendar.SECOND
|| timeUnit == Calendar.MINUTE
|| timeUnit == Calendar.HOUR_OF_DAY
|| timeUnit == Calendar.DATE) {
Integer[] steps = possibleTickSteps.get(timeUnit);
for (int i = 0; i < steps.length - 1; i++) {
if (gridStepHint
< (getPeriodInMillis(timeUnit, steps[i]) + getPeriodInMillis(timeUnit, steps[i + 1]))
/ 2d) {
BigDecimal gridStep =
new BigDecimal(Long.valueOf(getPeriodInMillis(timeUnit, steps[i])).toString());
updateTickLabelForLinearScale(length, gridStep);
break;
}
}
} else if (timeUnit == Calendar.MONTH || timeUnit == Calendar.YEAR) {
updateTickLabelForMonthOrYear(length, gridStepHint, timeUnit);
}
}
/**
* Return the axis values for the given pixel location on this graph.
*
* @param x The x pixel location on the graph.
* @param y The y pixel location on the graph.
* @return the x and y values for the given pixel location.
*/
public double[] getValueAt(int x, int y) {
Insets insets = getInsets();
double v[] = new double[2];
v[0] = xAxis != null ? xAxis.getValue(x - insets.left) : 0.;
v[1] = yAxis != null ? yAxis.getValue(getHeight() - y - insets.bottom) : 0.;
return v;
}
/**
* Sets the bins to the x and y axes and creates the buffer of the histogram
*
* @param bx number of bins on the x axis
* @param xmin the minimum value on the x axis
* @param xmax the maximum value on the x axis
* @param by number of bins on the y axis
* @param ymin the minimum value on the y axis
* @param ymax the maximum value on the y axis
*/
public final void set(int bx, double xmin, double xmax, int by, double ymin, double ymax) {
xAxis.set(bx, xmin, xmax);
yAxis.set(by, ymin, ymax);
offset = new MultiIndex(bx, by);
int buff = offset.getArraySize();
hBuffer = new double[buff];
}
@Override
public Axis createXAxis() {
Axis newAxis = new Axis("X-Axis", false);
newAxis.setOrientation(Orientation.HORIZONTAL);
newAxis.setTickLableSide(LabelSide.Primary);
return newAxis;
}
/**
* Returns the state indicating if there is a space to draw tick label.
*
* @param previousPosition the previously drawn tick label position.
* @param tickLabelPosition the tick label position.
* @param tickLabel the tick label text
* @return true if there is a space to draw tick label
*/
private boolean hasSpaceToDraw(int previousPosition, int tickLabelPosition, String tickLabel) {
Point p = Util.getExtentInGC(axis.getTick().getFont(), tickLabel);
int interval = tickLabelPosition - previousPosition;
int textLength = axis.isHorizontalAxis() ? p.x : p.y;
return interval > textLength;
}
public H2D() {
offset = new MultiIndex(xAxis.getNBins(), yAxis.getNBins());
hBuffer = new double[offset.getArraySize()];
this.attr.getProperties().setProperty("title", "");
this.attr.getProperties().setProperty("xtitle", "");
this.attr.getProperties().setProperty("ytitle", "");
}
/** Calculate the rectangle occupied by the data */
protected Rectangle getDataRectangle(Graphics g, Rectangle r) {
Axis a;
int waxis;
int x = r.x;
int y = r.y;
int width = r.width;
int height = r.height;
for (int i = 0; i < axis.size(); i++) {
a = ((Axis) axis.elementAt(i));
waxis = a.getAxisWidth(g);
switch (a.getAxisPos()) {
case Axis.LEFT:
x += waxis;
width -= waxis;
break;
case Axis.RIGHT:
width -= waxis;
break;
case Axis.TOP:
y += waxis;
height -= waxis;
break;
case Axis.BOTTOM:
height -= waxis;
break;
}
}
return new Rectangle(x, y, width, height);
}
public String getDomainCode() {
if (xAxis.getDomain() != null) domainCode = "x.domain(" + xAxis.getDomain() + ");\n";
else domainCode = "x.domain(d3.extent(data, function(d) { return d.x; }));\n";
if (yAxis.getDomain() != null) domainCode += "y.domain(" + yAxis.getDomain() + ");\n";
else domainCode += "y.domain(d3.extent(data, function(d) { return d.y; }));\n";
return domainCode;
}
/** Return a list of active dimensions on the slicer */
public static Set getActiveSlicerHierarchies(OlapModel model) throws OlapException {
Set active = new HashSet();
Axis slicer = model.getResult().getSlicer();
Hierarchy[] hiers = slicer.getHierarchies();
for (int j = 0; j < hiers.length; j++) active.add(hiers[j]);
return active;
}
/**
* Finds which bin has that value.
*
* @param x The x value to search for
* @param y The y value to search for
* @return The bin, in array indexing format, which holds that x-y value
*/
public int findBin(double x, double y) {
int bx = xAxis.getBin(x);
int by = yAxis.getBin(y);
if (this.isValidBins(bx, by)) {
return (offset.getArrayIndex(bx, by));
}
return -1;
}
@Override
public Axis createYAxis() {
Axis newAxis = new Axis("Y-Axis", true);
newAxis.setOrientation(Orientation.VERTICAL);
newAxis.setTickLableSide(LabelSide.Primary);
newAxis.setAutoScaleThreshold(0.1);
return newAxis;
}
/**
* Detach a previously attached Axis.
*
* @param the Axis to dettach.
*/
public void detachAxis(Axis a) {
if (a != null) {
a.detachAll();
a.g2d = null;
axis.removeElement(a);
}
}
@Override
public String toString() {
return new StringBuffer()
.append("horizontal=")
.append(horizontal.toString())
.append("vertical=")
.append(vertical.toString())
.toString();
}
/**
* Creates an error buffer with each element being 0.0
*
* @return a double 2D array with a size of xAxis * yAxis with each element being 0.0
*/
public double[][] getErrorBuffer() {
double[][] buff = new double[xAxis.getNBins()][yAxis.getNBins()];
for (int xloop = 0; xloop < xAxis.getNBins(); xloop++) {
for (int yloop = 0; yloop < yAxis.getNBins(); yloop++) {
buff[xloop][yloop] = 0.0;
}
}
return buff;
}
/**
* Generates a 2D array with the content in the histogram
*
* @return a 2D array with each bin in its array index
*/
public double[][] getContentBuffer() {
double[][] buff = new double[xAxis.getNBins()][yAxis.getNBins()];
for (int xloop = 0; xloop < xAxis.getNBins(); xloop++) {
for (int yloop = 0; yloop < yAxis.getNBins(); yloop++) {
buff[xloop][yloop] = this.getBinContent(xloop, yloop);
}
}
return buff;
}
/**
* Check the value of an axis, by name
*
* @param name
* @return The value of the axis form -1 to 1
*/
public static float checkAxis(String name) {
if (axes.get(name) != null) {
for (Axis a : axes.get(name)) {
if (Math.abs(a.check()) > 0.2) return a.check();
}
}
return 0;
}
/**
* メジャーを求める。 メジャーを持たない場合は、nullを戻す。
*
* @return メジャーオブジェクト
*/
public Measure getMeasure() {
Iterator<Axis> it = this.axisList.iterator();
while (it.hasNext()) {
Axis axis = it.next();
if (axis.isMeasure()) {
return (Measure) axis;
}
}
return null;
}
/**
* Returns the nth point in this graph (coordinates measured in pixels with respect to the canvas
* provided).
*
* @throws IndexOutOfBoundsException if the graph does not have an nth point.
*/
public Point getPoint(Component canvas, int n) {
// subtract 1 so that everything actually fits *within* the canvas
int width = canvas.getSize().width - 1;
int height = canvas.getSize().height - 1;
int x = xAxis.rescaleDataValue(this.getXValue(n), 0, width);
int y = yAxis.rescaleDataValue(this.getYValue(n), height, 0);
return new Point(x, y);
}
/**
* Checks if the design is inside the filters for a given Axis.
*
* @param axis the axis
* @return true, if is inside filters
*/
private boolean isInsideBounds(Axis axis) {
double lower = axis.getLowerFilter().getValue();
double upper = axis.getUpperFilter().getValue();
double value = this.getDoubleValue(axis.getParameter());
if (lower <= value && value <= upper) {
return true;
} else {
return false;
}
}
private double[][] ticks(double start, double end) {
LinearTickMarkCalculator c = new LinearTickMarkCalculator();
Axis axis =
new Axis() {
private static final long serialVersionUID = 1L;
};
axis.setStart(start);
axis.setEnd(end);
double[][] data = c.calculateTickMarks(axis);
return data;
}
// returns the number of points in this graph (equal to the
// *maximum* length of an axis, or zero if at least one axis is
// completely empty)
private int getNumberOfPoints() {
int xSize = xAxis.getData().length;
int ySize = yAxis.getData().length;
if (xSize == 0 || ySize == 0) {
return 0;
} else if (xSize > ySize) {
return xSize;
} else {
return ySize;
}
}
/**
* Creates a 1-D Histogram slice of the specified y Bin
*
* @param xBin the bin on the y axis to create a slice of
* @return a slice of the x bins on the specified y bin as a 1-D Histogram
*/
public H1D sliceX(int xBin) {
String name = "Slice of " + xBin + " X Bin";
double xMin = yAxis.min();
double xMax = yAxis.max();
int xNum = yAxis.getNBins();
H1D sliceX = new H1D(name, name, xNum, xMin, xMax);
for (int x = 0; x < xNum; x++) {
sliceX.setBinContent(x, this.getBinContent(xBin, x));
}
return sliceX;
}
/**
* 時間軸を持つ場合true、持たない場合falseを戻す。
*
* @return 時間軸を持つか
*/
public boolean investigateTimeDimension() {
Iterator<Axis> it = this.axisList.iterator();
while (it.hasNext()) {
Axis axis = it.next();
if (!axis.isMeasure()) {
Dimension dim = (Dimension) axis;
if (dim.isTimeDimension()) {
return true;
}
}
}
return false;
}
/**
* 与えられた軸を持つ場合true、持たない場合falseを戻す。
*
* @param oAxis 軸をあらわすオブジェクト
* @return 軸を持つかどうか
*/
public boolean hasThisAxis(Axis oAxis) {
if (oAxis == null) {
return false;
}
Iterator<Axis> it = this.getAxisList().iterator();
while (it.hasNext()) {
Axis axis = it.next();
if (axis.getId().equals(oAxis.getId())) {
return true;
}
}
return false;
}
/*
* @see PaintListener#paintControl(PaintEvent)
*/
public void paintControl(PaintEvent e) {
if (!axis.getTick().isVisible()) {
return;
}
e.gc.setBackground(chart.getBackground());
e.gc.setForeground(getForeground());
if (axis.isHorizontalAxis()) {
drawXTick(e.gc);
} else {
drawYTick(e.gc);
}
}
/**
* Creates a 1-D Histogram slice of the specified x Bin
*
* @param yBin the bin on the x axis to create a slice of
* @return a slice of the y bins on the specified x bin as a 1-D Histogram
*/
public H1D sliceY(int yBin) {
String name = "Slice of " + yBin + " Y Bin";
double xMin = xAxis.min();
double xMax = xAxis.max();
int xNum = xAxis.getNBins();
H1D sliceY = new H1D(name, name, xNum, xMin, xMax);
for (int y = 0; y < xNum; y++) {
sliceY.setBinContent(y, this.getBinContent(y, yBin));
}
return sliceY;
}
public String convertData(int s[]) {
dataCode = "";
if (xAxis.getDataLen() != s.length) return "";
// dataCode += "var "+varName+"=[";
dataCode += "[";
for (int i = 0; i < s.length; i++) {
if (xAxis.getDateLen() > -1)
dataCode += "{x:parseDate(\"" + xAxis.getData(i) + "\"),y:" + s[i] + "},";
else dataCode += "{x:" + xAxis.getData(i) + ",y:" + s[i] + "},";
}
dataCode += "]\n";
return dataCode;
}
/** Updates the visibility of tick labels. */
private void updateTickVisibility() {
// initialize the array of tick label visibility state
tickVisibilities.clear();
for (int i = 0; i < tickLabelPositions.size(); i++) {
tickVisibilities.add(Boolean.TRUE);
}
if (tickLabelPositions.size() == 0 || axis.getTick().getTickLabelAngle() != 0) {
return;
}
// set the tick label visibility
int previousPosition = 0;
for (int i = 0; i < tickLabelPositions.size(); i++) {
// check if there is enough space to draw tick label
boolean hasSpaceToDraw = true;
if (i != 0) {
hasSpaceToDraw =
hasSpaceToDraw(previousPosition, tickLabelPositions.get(i), tickLabels.get(i));
}
// check if the tick label value is major
boolean isMajorTick = true;
if (!axis.isValidCategoryAxis()) {
if (axis.isLogScaleEnabled()) {
isMajorTick = isMajorTick(tickLabelValues.get(i));
}
// check if the same tick label is repeated
String currentLabel = tickLabels.get(i);
try {
double value = Double.parseDouble(currentLabel);
if (value != tickLabelValues.get(i)) {
isMajorTick = false;
}
} catch (NumberFormatException e) {
// label is not decimal value but string
}
}
if (hasSpaceToDraw && isMajorTick) {
previousPosition = tickLabelPositions.get(i);
} else {
tickVisibilities.set(i, Boolean.FALSE);
}
}
}
/**
* 与えられた軸のエッジにおけるインデックスを求める。 与えられた軸がエッジにない場合は、-1を戻す。
*
* @param axisId 軸ID
* @return 軸のエッジにおけるインデックス
*/
public int getAxisIndexInEdge(String axisId) {
if (axisId == null) {
return -1;
}
Iterator<Axis> it = this.getAxisList().iterator();
int i = 0;
while (it.hasNext()) {
Axis axis = it.next();
if (axis.getId().equals(axisId)) {
return i;
}
i++;
}
return -1;
}
/**
* Create and attach an Axis to the graph. The position of the axis is one of Axis.TOP,
* Axis.BOTTOM, Axis.LEFT or Axis.RIGHT.
*
* @param position Position of the axis in the drawing window.
*/
public Axis createAxis(int position) {
Axis a;
try {
a = new Axis(position);
a.g2d = this;
axis.addElement(a);
} catch (Exception e) {
System.out.println("Failed to create Axis");
e.printStackTrace();
return null;
}
return a;
}