org.jfree.data.Range.getLength()方法的使用及代码示例
本文整理了Java中org.jfree.data.Range.getLength方法的一些代码示例，展示了Range.getLength的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Range.getLength方法的具体详情如下：
包路径：org.jfree.data.Range
类名称：Range
方法名：getLength
Range.getLength介绍
[英]Returns the length of the range.
[中]返回范围的长度。
代码示例
代码示例来源：origin: jfree/jfreechart
/**
* Translates a data value to an angle on the dial.
*
* @param value the value.
*
* @return The angle on the dial.
*/
public double valueToAngle(double value) {
value = value - this.range.getLowerBound();
double baseAngle = 180 + ((this.meterAngle - 180) / 2);
return baseAngle - ((value / this.range.getLength()) * this.meterAngle);
}代码示例来源：origin: org.codehaus.jtstand/jtstand-chart
/**
* Translates a data value to an angle on the dial.
*
* @param value the value.
*
* @return The angle on the dial.
*/
public double valueToAngle(double value) {
value = value - this.range.getLowerBound();
double baseAngle = 180 + ((this.meterAngle - 180) / 2);
return baseAngle - ((value / this.range.getLength()) * this.meterAngle);
}代码示例来源：origin: jfree/jfreechart
/**
* Maps a data value into the fixed range.
*
* @param value the value.
*
* @return The mapped value.
*/
private double mapValueToFixedRange(double value) {
double lower = this.fixedRange.getLowerBound();
double length = this.fixedRange.getLength();
if (value < lower) {
return lower + length + ((value - lower) % length);
}
else {
return lower + ((value - lower) % length);
}
}代码示例来源：origin: org.codehaus.jtstand/jtstand-chart
/**
* Maps a data value into the fixed range.
*
* @param value the value.
*
* @return The mapped value.
*/
private double mapValueToFixedRange(double value) {
double lower = this.fixedRange.getLowerBound();
double length = this.fixedRange.getLength();
if (value < lower) {
return lower + length + ((value - lower) % length);
}
else {
return lower + ((value - lower) % length);
}
}代码示例来源：origin: org.codehaus.jtstand/jtstand-chart
/**
* Sets the range for the dial and sends a {@link PlotChangeEvent} to all
* registered listeners.
*
* @param range the range (<code>null</code> not permitted and zero-length
* ranges not permitted).
*
* @see #getRange()
*/
public void setRange(Range range) {
if (range == null) {
throw new IllegalArgumentException("Null 'range' argument.");
}
if (!(range.getLength() > 0.0)) {
throw new IllegalArgumentException(
"Range length must be positive.");
}
this.range = range;
fireChangeEvent();
}代码示例来源：origin: jfree/jfreechart
/**
* Sets the range for the dial and sends a {@link PlotChangeEvent} to all
* registered listeners.
*
* @param range the range ({@code null} not permitted and zero-length
* ranges not permitted).
*
* @see #getRange()
*/
public void setRange(Range range) {
Args.nullNotPermitted(range, "range");
if (!(range.getLength() > 0.0)) {
throw new IllegalArgumentException(
"Range length must be positive.");
}
this.range = range;
fireChangeEvent();
}代码示例来源：origin: senbox-org/snap-desktop
private Range getNewPlotBounds(Range bounds) {
double range = bounds.getLength();
double delta = range * relativePlotInset;
return new Range(Math.max(0, bounds.getLowerBound() - delta),
bounds.getUpperBound() + delta);
}代码示例来源：origin: bcdev/beam
private Range getNewPlotBounds(Range bounds) {
double range = bounds.getLength();
double delta = range * relativePlotInset;
return new Range(Math.max(0, bounds.getLowerBound() - delta),
bounds.getUpperBound() + delta);
}代码示例来源：origin: jfree/jfreechart
/**
* Increases or decreases the axis range by the specified percentage about
* the specified anchor value and sends an {@link AxisChangeEvent} to all
* registered listeners.
* <P>
* To double the length of the axis range, use 200% (2.0).
* To halve the length of the axis range, use 50% (0.5).
*
* @param percent the resize factor.
* @param anchorValue the new central value after the resize.
*
* @see #resizeRange(double)
*/
public void resizeRange(double percent, double anchorValue) {
if (percent > 0.0) {
double halfLength = this.range.getLength() * percent / 2;
Range adjusted = new Range(anchorValue - halfLength,
anchorValue + halfLength);
setRange(adjusted);
}
else {
setAutoRange(true);
}
}代码示例来源：origin: jfree/jfreechart
/**
* Zooms in on the current range.
*
* @param lowerPercent the new lower bound.
* @param upperPercent the new upper bound.
*/
public void zoomRange(double lowerPercent, double upperPercent) {
double start = this.range.getLowerBound();
double length = this.range.getLength();
double r0, r1;
if (isInverted()) {
r0 = start + (length * (1 - upperPercent));
r1 = start + (length * (1 - lowerPercent));
}
else {
r0 = start + length * lowerPercent;
r1 = start + length * upperPercent;
}
if ((r1 > r0) && !Double.isInfinite(r1 - r0)) {
setRange(new Range(r0, r1));
}
}代码示例来源：origin: jfree/jfreechart
/**
* Slides the axis range by the specified percentage.
*
* @param percent the percentage.
*
* @since 1.0.13
*/
public void pan(double percent) {
Range r = getRange();
double length = range.getLength();
double adj = length * percent;
double lower = r.getLowerBound() + adj;
double upper = r.getUpperBound() + adj;
setRange(lower, upper);
}代码示例来源：origin: org.codehaus.jtstand/jtstand-chart
/**
* Slides the axis range by the specified percentage.
*
* @param percent the percentage.
*
* @since 1.0.13
*/
public void pan(double percent) {
Range range = getRange();
double length = range.getLength();
double adj = length * percent;
double lower = range.getLowerBound() + adj;
double upper = range.getUpperBound() + adj;
setRange(lower, upper);
}代码示例来源：origin: jfree/jfreechart
/**
* Selects a tick unit when the axis is displayed horizontally.
*
* @param g2 the graphics device.
* @param drawArea the drawing area.
* @param dataArea the data area.
* @param edge the side of the rectangle on which the axis is displayed.
*/
protected void selectHorizontalAutoTickUnit(Graphics2D g2,
Rectangle2D drawArea, Rectangle2D dataArea, RectangleEdge edge) {
double tickLabelWidth
= estimateMaximumTickLabelWidth(g2, getTickUnit());
// Compute number of labels
double n = getRange().getLength()
* tickLabelWidth / dataArea.getWidth();
setTickUnit(
(NumberTickUnit) getStandardTickUnits().getCeilingTickUnit(n),
false, false);
}代码示例来源：origin: jfree/jfreechart
/**
* Selects a tick unit when the axis is displayed vertically.
*
* @param g2 the graphics device.
* @param drawArea the drawing area.
* @param dataArea the data area.
* @param edge the side of the rectangle on which the axis is displayed.
*/
protected void selectVerticalAutoTickUnit(Graphics2D g2,
Rectangle2D drawArea, Rectangle2D dataArea, RectangleEdge edge) {
double tickLabelWidth
= estimateMaximumTickLabelWidth(g2, getTickUnit());
// Compute number of labels
double n = getRange().getLength()
* tickLabelWidth / dataArea.getHeight();
setTickUnit(
(NumberTickUnit) getStandardTickUnits().getCeilingTickUnit(n),
false, false);
}代码示例来源：origin: jfree/jfreechart
/**
* Creates a new range by adding margins to an existing range.
*
* @param range the range ({@code null} not permitted).
* @param lowerMargin the lower margin (expressed as a percentage of the
* range length).
* @param upperMargin the upper margin (expressed as a percentage of the
* range length).
*
* @return The expanded range.
*/
public static Range expand(Range range,
double lowerMargin, double upperMargin) {
Args.nullNotPermitted(range, "range");
double length = range.getLength();
double lower = range.getLowerBound() - length * lowerMargin;
double upper = range.getUpperBound() + length * upperMargin;
if (lower > upper) {
lower = lower / 2.0 + upper / 2.0;
upper = lower;
}
return new Range(lower, upper);
}代码示例来源：origin: org.codehaus.jtstand/jtstand-chart
/**
* Zooms in on the current range.
*
* @param lowerPercent the new lower bound.
* @param upperPercent the new upper bound.
*/
public void zoomRange(double lowerPercent, double upperPercent) {
double start = this.range.getLowerBound();
double length = this.range.getLength();
Range adjusted = null;
if (isInverted()) {
adjusted = new Range(start + (length * (1 - upperPercent)),
start + (length * (1 - lowerPercent)));
}
else {
adjusted = new Range(start + length * lowerPercent,
start + length * upperPercent);
}
setRange(adjusted);
}代码示例来源：origin: jfree/jfreechart
/**
* Zooms (in or out) on the plot's value axis.
* <p>
* If the value 0.0 is passed in as the zoom percent, the auto-range
* calculation for the axis is restored (which sets the range to include
* the minimum and maximum data values, thus displaying all the data).
*
* @param percent the zoom amount.
*/
@Override
public void zoom(double percent) {
if (percent > 0.0) {
double range = getRangeAxis().getRange().getLength();
double scaledRange = range * percent;
getRangeAxis().setRange(this.anchorValue - scaledRange / 2.0,
this.anchorValue + scaledRange / 2.0);
}
else {
getRangeAxis().setAutoRange(true);
}
}代码示例来源：origin: org.codehaus.jtstand/jtstand-chart
/**
* Zooms (in or out) on the plot's value axis.
* <p>
* If the value 0.0 is passed in as the zoom percent, the auto-range
* calculation for the axis is restored (which sets the range to include
* the minimum and maximum data values, thus displaying all the data).
*
* @param percent the zoom amount.
*/
public void zoom(double percent) {
if (percent > 0.0) {
double range = getRangeAxis().getRange().getLength();
double scaledRange = range * percent;
getRangeAxis().setRange(this.anchorValue - scaledRange / 2.0,
this.anchorValue + scaledRange / 2.0);
}
else {
getRangeAxis().setAutoRange(true);
}
}代码示例来源：origin: jfree/jfreechart
/**
* Pans the domain axes by the specified percentage.
*
* @param percent the distance to pan (as a percentage of the axis length).
* @param info the plot info
* @param source the source point where the pan action started.
*
* @since 1.0.13
*/
@Override
public void panDomainAxes(double percent, PlotRenderingInfo info,
Point2D source) {
if (!isDomainPannable() || this.domainAxis == null) {
return;
}
double length = this.domainAxis.getRange().getLength();
double adj = percent * length;
if (this.domainAxis.isInverted()) {
adj = -adj;
}
this.domainAxis.setRange(this.domainAxis.getLowerBound() + adj,
this.domainAxis.getUpperBound() + adj);
}代码示例来源：origin: jfree/jfreechart
/**
* Pans the range axes by the specified percentage.
*
* @param percent the distance to pan (as a percentage of the axis length).
* @param info the plot info
* @param source the source point where the pan action started.
*
* @since 1.0.13
*/
@Override
public void panRangeAxes(double percent, PlotRenderingInfo info,
Point2D source) {
if (!isRangePannable() || this.rangeAxis == null) {
return;
}
double length = this.rangeAxis.getRange().getLength();
double adj = percent * length;
if (this.rangeAxis.isInverted()) {
adj = -adj;
}
this.rangeAxis.setRange(this.rangeAxis.getLowerBound() + adj,
this.rangeAxis.getUpperBound() + adj);
}内容来源于网络，如有侵权，请联系作者删除！
