📄 numberaxis.html
字号:
<FONT color="green">558</FONT> *<a name="line.558"></a><FONT color="green">559</FONT> * @return The value of the lowest visible tick on the axis.<a name="line.559"></a><FONT color="green">560</FONT> */<a name="line.560"></a><FONT color="green">561</FONT> protected double calculateLowestVisibleTickValue() {<a name="line.561"></a><FONT color="green">562</FONT> <a name="line.562"></a><FONT color="green">563</FONT> double unit = getTickUnit().getSize();<a name="line.563"></a><FONT color="green">564</FONT> double index = Math.ceil(getRange().getLowerBound() / unit);<a name="line.564"></a><FONT color="green">565</FONT> return index * unit;<a name="line.565"></a><FONT color="green">566</FONT> <a name="line.566"></a><FONT color="green">567</FONT> }<a name="line.567"></a><FONT color="green">568</FONT> <a name="line.568"></a><FONT color="green">569</FONT> /**<a name="line.569"></a><FONT color="green">570</FONT> * Calculates the value of the highest visible tick on the axis.<a name="line.570"></a><FONT color="green">571</FONT> *<a name="line.571"></a><FONT color="green">572</FONT> * @return The value of the highest visible tick on the axis.<a name="line.572"></a><FONT color="green">573</FONT> */<a name="line.573"></a><FONT color="green">574</FONT> protected double calculateHighestVisibleTickValue() {<a name="line.574"></a><FONT color="green">575</FONT> <a name="line.575"></a><FONT color="green">576</FONT> double unit = getTickUnit().getSize();<a name="line.576"></a><FONT color="green">577</FONT> double index = Math.floor(getRange().getUpperBound() / unit);<a name="line.577"></a><FONT color="green">578</FONT> return index * unit;<a name="line.578"></a><FONT color="green">579</FONT> <a name="line.579"></a><FONT color="green">580</FONT> }<a name="line.580"></a><FONT color="green">581</FONT> <a name="line.581"></a><FONT color="green">582</FONT> /**<a name="line.582"></a><FONT color="green">583</FONT> * Calculates the number of visible ticks.<a name="line.583"></a><FONT color="green">584</FONT> *<a name="line.584"></a><FONT color="green">585</FONT> * @return The number of visible ticks on the axis.<a name="line.585"></a><FONT color="green">586</FONT> */<a name="line.586"></a><FONT color="green">587</FONT> protected int calculateVisibleTickCount() {<a name="line.587"></a><FONT color="green">588</FONT> <a name="line.588"></a><FONT color="green">589</FONT> double unit = getTickUnit().getSize();<a name="line.589"></a><FONT color="green">590</FONT> Range range = getRange();<a name="line.590"></a><FONT color="green">591</FONT> return (int) (Math.floor(range.getUpperBound() / unit)<a name="line.591"></a><FONT color="green">592</FONT> - Math.ceil(range.getLowerBound() / unit) + 1);<a name="line.592"></a><FONT color="green">593</FONT> <a name="line.593"></a><FONT color="green">594</FONT> }<a name="line.594"></a><FONT color="green">595</FONT> <a name="line.595"></a><FONT color="green">596</FONT> /**<a name="line.596"></a><FONT color="green">597</FONT> * Draws the axis on a Java 2D graphics device (such as the screen or a <a name="line.597"></a><FONT color="green">598</FONT> * printer).<a name="line.598"></a><FONT color="green">599</FONT> *<a name="line.599"></a><FONT color="green">600</FONT> * @param g2 the graphics device (<code>null</code> not permitted).<a name="line.600"></a><FONT color="green">601</FONT> * @param cursor the cursor location.<a name="line.601"></a><FONT color="green">602</FONT> * @param plotArea the area within which the axes and data should be drawn<a name="line.602"></a><FONT color="green">603</FONT> * (<code>null</code> not permitted).<a name="line.603"></a><FONT color="green">604</FONT> * @param dataArea the area within which the data should be drawn <a name="line.604"></a><FONT color="green">605</FONT> * (<code>null</code> not permitted).<a name="line.605"></a><FONT color="green">606</FONT> * @param edge the location of the axis (<code>null</code> not permitted).<a name="line.606"></a><FONT color="green">607</FONT> * @param plotState collects information about the plot <a name="line.607"></a><FONT color="green">608</FONT> * (<code>null</code> permitted).<a name="line.608"></a><FONT color="green">609</FONT> * <a name="line.609"></a><FONT color="green">610</FONT> * @return The axis state (never <code>null</code>).<a name="line.610"></a><FONT color="green">611</FONT> */<a name="line.611"></a><FONT color="green">612</FONT> public AxisState draw(Graphics2D g2, <a name="line.612"></a><FONT color="green">613</FONT> double cursor,<a name="line.613"></a><FONT color="green">614</FONT> Rectangle2D plotArea, <a name="line.614"></a><FONT color="green">615</FONT> Rectangle2D dataArea, <a name="line.615"></a><FONT color="green">616</FONT> RectangleEdge edge,<a name="line.616"></a><FONT color="green">617</FONT> PlotRenderingInfo plotState) {<a name="line.617"></a><FONT color="green">618</FONT> <a name="line.618"></a><FONT color="green">619</FONT> AxisState state = null;<a name="line.619"></a><FONT color="green">620</FONT> // if the axis is not visible, don't draw it...<a name="line.620"></a><FONT color="green">621</FONT> if (!isVisible()) {<a name="line.621"></a><FONT color="green">622</FONT> state = new AxisState(cursor);<a name="line.622"></a><FONT color="green">623</FONT> // even though the axis is not visible, we need ticks for the <a name="line.623"></a><FONT color="green">624</FONT> // gridlines...<a name="line.624"></a><FONT color="green">625</FONT> List ticks = refreshTicks(g2, state, dataArea, edge); <a name="line.625"></a><FONT color="green">626</FONT> state.setTicks(ticks);<a name="line.626"></a><FONT color="green">627</FONT> return state;<a name="line.627"></a><FONT color="green">628</FONT> }<a name="line.628"></a><FONT color="green">629</FONT> <a name="line.629"></a><FONT color="green">630</FONT> // draw the tick marks and labels...<a name="line.630"></a><FONT color="green">631</FONT> state = drawTickMarksAndLabels(g2, cursor, plotArea, dataArea, edge);<a name="line.631"></a><FONT color="green">632</FONT> <a name="line.632"></a><FONT color="green">633</FONT> // // draw the marker band (if there is one)...<a name="line.633"></a><FONT color="green">634</FONT> // if (getMarkerBand() != null) {<a name="line.634"></a><FONT color="green">635</FONT> // if (edge == RectangleEdge.BOTTOM) {<a name="line.635"></a><FONT color="green">636</FONT> // cursor = cursor - getMarkerBand().getHeight(g2);<a name="line.636"></a><FONT color="green">637</FONT> // }<a name="line.637"></a><FONT color="green">638</FONT> // getMarkerBand().draw(g2, plotArea, dataArea, 0, cursor);<a name="line.638"></a><FONT color="green">639</FONT> // }<a name="line.639"></a><FONT color="green">640</FONT> <a name="line.640"></a><FONT color="green">641</FONT> // draw the axis label...<a name="line.641"></a><FONT color="green">642</FONT> state = drawLabel(getLabel(), g2, plotArea, dataArea, edge, state);<a name="line.642"></a><FONT color="green">643</FONT> <a name="line.643"></a><FONT color="green">644</FONT> return state;<a name="line.644"></a><FONT color="green">645</FONT> <a name="line.645"></a><FONT color="green">646</FONT> }<a name="line.646"></a><FONT color="green">647</FONT> <a name="line.647"></a><FONT color="green">648</FONT> /**<a name="line.648"></a><FONT color="green">649</FONT> * Creates the standard tick units.<a name="line.649"></a><FONT color="green">650</FONT> * <P><a name="line.650"></a><FONT color="green">651</FONT> * If you don't like these defaults, create your own instance of TickUnits<a name="line.651"></a><FONT color="green">652</FONT> * and then pass it to the setStandardTickUnits() method in the<a name="line.652"></a><FONT color="green">653</FONT> * NumberAxis class.<a name="line.653"></a><FONT color="green">654</FONT> *<a name="line.654"></a><FONT color="green">655</FONT> * @return The standard tick units.<a name="line.655"></a><FONT color="green">656</FONT> */<a name="line.656"></a><FONT color="green">657</FONT> public static TickUnitSource createStandardTickUnits() {<a name="line.657"></a><FONT color="green">658</FONT> <a name="line.658"></a><FONT color="green">659</FONT> TickUnits units = new TickUnits();<a name="line.659"></a><FONT color="green">660</FONT> DecimalFormat df0 = new DecimalFormat("0.00000000");<a name="line.660"></a><FONT color="green">661</FONT> DecimalFormat df1 = new DecimalFormat("0.0000000");<a name="line.661"></a><FONT color="green">662</FONT> DecimalFormat df2 = new DecimalFormat("0.000000");<a name="line.662"></a><FONT color="green">663</FONT> DecimalFormat df3 = new DecimalFormat("0.00000");<a name="line.663"></a><FONT color="green">664</FONT> DecimalFormat df4 = new DecimalFormat("0.0000");<a name="line.664"></a><FONT color="green">665</FONT> DecimalFormat df5 = new DecimalFormat("0.000");<a name="line.665"></a><FONT color="green">666</FONT> DecimalFormat df6 = new DecimalFormat("0.00");<a name="line.666"></a><FONT color="green">667</FONT> DecimalFormat df7 = new DecimalFormat("0.0");<a name="line.667"></a><FONT color="green">668</FONT> DecimalFormat df8 = new DecimalFormat("#,##0");<a name="line.668"></a><FONT color="green">669</FONT> DecimalFormat df9 = new DecimalFormat("#,###,##0");<a name="line.669"></a><FONT color="green">670</FONT> DecimalFormat df10 = new DecimalFormat("#,###,###,##0");<a name="line.670"></a><FONT color="green">671</FONT> <a name="line.671"></a><FONT color="green">672</FONT> // we can add the units in any order, the TickUnits collection will <a name="line.672"></a><FONT color="green">673</FONT> // sort them...<a name="line.673"></a><FONT color="green">674</FONT> units.add(new NumberTickUnit(0.0000001, df1));<a name="line.674"></a><FONT color="green">675</FONT> units.add(new NumberTickUnit(0.000001, df2));<a name="line.675"></a><FONT color="green">676</FONT> units.add(new NumberTickUnit(0.00001, df3));<a name="line.676"></a><FONT color="green">677</FONT> units.add(new NumberTickUnit(0.0001, df4));<a name="line.677"></a><FONT color="green">678</FONT> units.add(new NumberTickUnit(0.001, df5));<a name="line.678"></a><FONT color="green">679</FONT> units.add(new NumberTickUnit(0.01, df6));<a name="line.679"></a><FONT color="green">680</FONT> units.add(new NumberTickUnit(0.1, df7));<a name="line.680"></a><FONT color="green">681</FONT> units.add(new NumberTickUnit(1, df8));<a name="line.681"></a><FONT color="green">682</FONT> units.add(new NumberTickUnit(10, df8));<a name="line.682"></a><FONT color="green">683</FONT> units.add(new NumberTickUnit(100, df8));<a name="line.683"></a><FONT color="green">684</FONT> units.add(new NumberTickUnit(1000, df8));<a name="line.684"></a><FONT color="green">685</FONT> units.add(new NumberTickUnit(10000, df8));<a name="line.685"></a><FONT color="green">686</FONT> units.add(new NumberTickUnit(100000, df8));<a name="line.686"></a><FONT color="green">687</FONT> units.add(new NumberTickUnit(1000000, df9));<a name="line.687"></a><FONT color="green">688</FONT> units.add(new NumberTickUnit(10000000, df9));<a name="line.688"></a><FONT color="green">689</FONT> units.add(new NumberTickUnit(100000000, df9));<a name="line.689"></a><FONT color="green">690</FONT> units.add(new NumberTickUnit(1000000000, df10));<a name="line.690"></a><FONT color="green">691</FONT> units.add(new NumberTickUnit(10000000000.0, df10));<a name="line.691"></a><FONT color="green">692</FONT> units.add(new NumberTickUnit(100000000000.0, df10));<a name="line.692"></a><FONT color="green">693</FONT> <a name="line.693"></a><FONT color="green">694</FONT> un⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -