xysteparearenderer.html

jfreechart1。0。2的api。

<FONT color="green">472</FONT>                }<a name="line.472"></a>
<FONT color="green">473</FONT>    <a name="line.473"></a>
<FONT color="green">474</FONT>                // fill the polygon<a name="line.474"></a>
<FONT color="green">475</FONT>                g2.fill(this.pArea);<a name="line.475"></a>
<FONT color="green">476</FONT>    <a name="line.476"></a>
<FONT color="green">477</FONT>                // draw an outline around the Area.<a name="line.477"></a>
<FONT color="green">478</FONT>                if (isOutline()) {<a name="line.478"></a>
<FONT color="green">479</FONT>                    g2.setStroke(plot.getOutlineStroke());<a name="line.479"></a>
<FONT color="green">480</FONT>                    g2.setPaint(plot.getOutlinePaint());<a name="line.480"></a>
<FONT color="green">481</FONT>                    g2.draw(this.pArea);<a name="line.481"></a>
<FONT color="green">482</FONT>                }<a name="line.482"></a>
<FONT color="green">483</FONT>    <a name="line.483"></a>
<FONT color="green">484</FONT>                // start new area when needed (see above)<a name="line.484"></a>
<FONT color="green">485</FONT>                this.pArea = null;<a name="line.485"></a>
<FONT color="green">486</FONT>            }<a name="line.486"></a>
<FONT color="green">487</FONT>    <a name="line.487"></a>
<FONT color="green">488</FONT>            // do we need to update the crosshair values?<a name="line.488"></a>
<FONT color="green">489</FONT>            if (!Double.isNaN(y1)) {<a name="line.489"></a>
<FONT color="green">490</FONT>                updateCrosshairValues(crosshairState, x1, y1, transX1, transY1, <a name="line.490"></a>
<FONT color="green">491</FONT>                        orientation);<a name="line.491"></a>
<FONT color="green">492</FONT>            }<a name="line.492"></a>
<FONT color="green">493</FONT>    <a name="line.493"></a>
<FONT color="green">494</FONT>            // collect entity and tool tip information...<a name="line.494"></a>
<FONT color="green">495</FONT>            if (state.getInfo() != null) {<a name="line.495"></a>
<FONT color="green">496</FONT>                EntityCollection entities = state.getEntityCollection();<a name="line.496"></a>
<FONT color="green">497</FONT>                if (entities != null &amp;&amp; shape != null) {<a name="line.497"></a>
<FONT color="green">498</FONT>                    String tip = null;<a name="line.498"></a>
<FONT color="green">499</FONT>                    XYToolTipGenerator generator <a name="line.499"></a>
<FONT color="green">500</FONT>                        = getToolTipGenerator(series, item);<a name="line.500"></a>
<FONT color="green">501</FONT>                    if (generator != null) {<a name="line.501"></a>
<FONT color="green">502</FONT>                        tip = generator.generateToolTip(dataset, series, item);<a name="line.502"></a>
<FONT color="green">503</FONT>                    }<a name="line.503"></a>
<FONT color="green">504</FONT>                    String url = null;<a name="line.504"></a>
<FONT color="green">505</FONT>                    if (getURLGenerator() != null) {<a name="line.505"></a>
<FONT color="green">506</FONT>                        url = getURLGenerator().generateURL(dataset, series, item);<a name="line.506"></a>
<FONT color="green">507</FONT>                    }<a name="line.507"></a>
<FONT color="green">508</FONT>                    XYItemEntity entity = new XYItemEntity(shape, dataset, series, <a name="line.508"></a>
<FONT color="green">509</FONT>                            item, tip, url);<a name="line.509"></a>
<FONT color="green">510</FONT>                    entities.add(entity);<a name="line.510"></a>
<FONT color="green">511</FONT>                }<a name="line.511"></a>
<FONT color="green">512</FONT>            }<a name="line.512"></a>
<FONT color="green">513</FONT>        }<a name="line.513"></a>
<FONT color="green">514</FONT>    <a name="line.514"></a>
<FONT color="green">515</FONT>        /**<a name="line.515"></a>
<FONT color="green">516</FONT>         * Returns a clone of the renderer.<a name="line.516"></a>
<FONT color="green">517</FONT>         * <a name="line.517"></a>
<FONT color="green">518</FONT>         * @return A clone.<a name="line.518"></a>
<FONT color="green">519</FONT>         * <a name="line.519"></a>
<FONT color="green">520</FONT>         * @throws CloneNotSupportedException  if the renderer cannot be cloned.<a name="line.520"></a>
<FONT color="green">521</FONT>         */<a name="line.521"></a>
<FONT color="green">522</FONT>        public Object clone() throws CloneNotSupportedException {<a name="line.522"></a>
<FONT color="green">523</FONT>            return super.clone();<a name="line.523"></a>
<FONT color="green">524</FONT>        }<a name="line.524"></a>
<FONT color="green">525</FONT>        <a name="line.525"></a>
<FONT color="green">526</FONT>        /**<a name="line.526"></a>
<FONT color="green">527</FONT>         * Helper method which returns a value if it lies<a name="line.527"></a>
<FONT color="green">528</FONT>         * inside the visible dataArea and otherwise the corresponding<a name="line.528"></a>
<FONT color="green">529</FONT>         * coordinate on the border of the dataArea. The PlotOrientation<a name="line.529"></a>
<FONT color="green">530</FONT>         * is taken into account. <a name="line.530"></a>
<FONT color="green">531</FONT>         * Useful to avoid possible sun.dc.pr.PRException: endPath: bad path<a name="line.531"></a>
<FONT color="green">532</FONT>         * which occurs when trying to draw lines/shapes which in large part<a name="line.532"></a>
<FONT color="green">533</FONT>         * lie outside of the visible dataArea.<a name="line.533"></a>
<FONT color="green">534</FONT>         * <a name="line.534"></a>
<FONT color="green">535</FONT>         * @param value the value which shall be <a name="line.535"></a>
<FONT color="green">536</FONT>         * @param dataArea  the area within which the data is being drawn.<a name="line.536"></a>
<FONT color="green">537</FONT>         * @param plot  the plot (can be used to obtain standard color <a name="line.537"></a>
<FONT color="green">538</FONT>         *              information etc).<a name="line.538"></a>
<FONT color="green">539</FONT>         * @return &lt;code&gt;double&lt;/code&gt; value inside the data area.<a name="line.539"></a>
<FONT color="green">540</FONT>         */<a name="line.540"></a>
<FONT color="green">541</FONT>        protected static double restrictValueToDataArea(double value, <a name="line.541"></a>
<FONT color="green">542</FONT>                                                        XYPlot plot, <a name="line.542"></a>
<FONT color="green">543</FONT>                                                        Rectangle2D dataArea) {<a name="line.543"></a>
<FONT color="green">544</FONT>            double min = 0;<a name="line.544"></a>
<FONT color="green">545</FONT>            double max = 0;<a name="line.545"></a>
<FONT color="green">546</FONT>            if (plot.getOrientation() == PlotOrientation.VERTICAL) {<a name="line.546"></a>
<FONT color="green">547</FONT>                min = dataArea.getMinY();<a name="line.547"></a>
<FONT color="green">548</FONT>                max = dataArea.getMaxY();<a name="line.548"></a>
<FONT color="green">549</FONT>            } <a name="line.549"></a>
<FONT color="green">550</FONT>            else if (plot.getOrientation() ==  PlotOrientation.HORIZONTAL) {<a name="line.550"></a>
<FONT color="green">551</FONT>                min = dataArea.getMinX();<a name="line.551"></a>
<FONT color="green">552</FONT>                max = dataArea.getMaxX();<a name="line.552"></a>
<FONT color="green">553</FONT>            }       <a name="line.553"></a>
<FONT color="green">554</FONT>            if (value &lt; min) {<a name="line.554"></a>
<FONT color="green">555</FONT>                value = min;<a name="line.555"></a>
<FONT color="green">556</FONT>            }<a name="line.556"></a>
<FONT color="green">557</FONT>            else if (value &gt; max) {<a name="line.557"></a>
<FONT color="green">558</FONT>                value = max;<a name="line.558"></a>
<FONT color="green">559</FONT>            }<a name="line.559"></a>
<FONT color="green">560</FONT>            return value;<a name="line.560"></a>
<FONT color="green">561</FONT>        }<a name="line.561"></a>
<FONT color="green">562</FONT>    <a name="line.562"></a>
<FONT color="green">563</FONT>    }<a name="line.563"></a>




























































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