compassplot.html

jfreechart最新源代码

<FONT color="green">445</FONT>    <a name="line.445"></a>
<FONT color="green">446</FONT>        /**<a name="line.446"></a>
<FONT color="green">447</FONT>         * Sets the needle for a series.<a name="line.447"></a>
<FONT color="green">448</FONT>         *<a name="line.448"></a>
<FONT color="green">449</FONT>         * @param index  the series index.<a name="line.449"></a>
<FONT color="green">450</FONT>         * @param needle  the needle.<a name="line.450"></a>
<FONT color="green">451</FONT>         */<a name="line.451"></a>
<FONT color="green">452</FONT>        public void setSeriesNeedle(int index, MeterNeedle needle) {<a name="line.452"></a>
<FONT color="green">453</FONT>    <a name="line.453"></a>
<FONT color="green">454</FONT>            if ((needle != null) &amp;&amp; (index &lt; this.seriesNeedle.length)) {<a name="line.454"></a>
<FONT color="green">455</FONT>                this.seriesNeedle[index] = needle;<a name="line.455"></a>
<FONT color="green">456</FONT>            }<a name="line.456"></a>
<FONT color="green">457</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.457"></a>
<FONT color="green">458</FONT>    <a name="line.458"></a>
<FONT color="green">459</FONT>        }<a name="line.459"></a>
<FONT color="green">460</FONT>    <a name="line.460"></a>
<FONT color="green">461</FONT>        /**<a name="line.461"></a>
<FONT color="green">462</FONT>         * Returns the dataset.<a name="line.462"></a>
<FONT color="green">463</FONT>         * &lt;P&gt;<a name="line.463"></a>
<FONT color="green">464</FONT>         * Provided for convenience.<a name="line.464"></a>
<FONT color="green">465</FONT>         *<a name="line.465"></a>
<FONT color="green">466</FONT>         * @return The dataset for the plot, cast as a ValueDataset.<a name="line.466"></a>
<FONT color="green">467</FONT>         */<a name="line.467"></a>
<FONT color="green">468</FONT>        public ValueDataset[] getDatasets() {<a name="line.468"></a>
<FONT color="green">469</FONT>            return this.datasets;<a name="line.469"></a>
<FONT color="green">470</FONT>        }<a name="line.470"></a>
<FONT color="green">471</FONT>    <a name="line.471"></a>
<FONT color="green">472</FONT>        /**<a name="line.472"></a>
<FONT color="green">473</FONT>         * Adds a dataset to the compass.<a name="line.473"></a>
<FONT color="green">474</FONT>         *<a name="line.474"></a>
<FONT color="green">475</FONT>         * @param dataset  the new dataset.<a name="line.475"></a>
<FONT color="green">476</FONT>         */<a name="line.476"></a>
<FONT color="green">477</FONT>        public void addDataset(ValueDataset dataset) {<a name="line.477"></a>
<FONT color="green">478</FONT>            addDataset(dataset, null);<a name="line.478"></a>
<FONT color="green">479</FONT>        }<a name="line.479"></a>
<FONT color="green">480</FONT>    <a name="line.480"></a>
<FONT color="green">481</FONT>        /**<a name="line.481"></a>
<FONT color="green">482</FONT>         * Adds a dataset to the compass.<a name="line.482"></a>
<FONT color="green">483</FONT>         *<a name="line.483"></a>
<FONT color="green">484</FONT>         * @param dataset  the new dataset.<a name="line.484"></a>
<FONT color="green">485</FONT>         * @param needle  the needle.<a name="line.485"></a>
<FONT color="green">486</FONT>         */<a name="line.486"></a>
<FONT color="green">487</FONT>        public void addDataset(ValueDataset dataset, MeterNeedle needle) {<a name="line.487"></a>
<FONT color="green">488</FONT>    <a name="line.488"></a>
<FONT color="green">489</FONT>            if (dataset != null) {<a name="line.489"></a>
<FONT color="green">490</FONT>                int i = this.datasets.length + 1;<a name="line.490"></a>
<FONT color="green">491</FONT>                ValueDataset[] t = new ValueDataset[i];<a name="line.491"></a>
<FONT color="green">492</FONT>                MeterNeedle[] p = new MeterNeedle[i];<a name="line.492"></a>
<FONT color="green">493</FONT>                i = i - 2;<a name="line.493"></a>
<FONT color="green">494</FONT>                for (; i &gt;= 0; --i) {<a name="line.494"></a>
<FONT color="green">495</FONT>                    t[i] = this.datasets[i];<a name="line.495"></a>
<FONT color="green">496</FONT>                    p[i] = this.seriesNeedle[i];<a name="line.496"></a>
<FONT color="green">497</FONT>                }<a name="line.497"></a>
<FONT color="green">498</FONT>                i = this.datasets.length;<a name="line.498"></a>
<FONT color="green">499</FONT>                t[i] = dataset;<a name="line.499"></a>
<FONT color="green">500</FONT>                p[i] = ((needle != null) ? needle : p[i - 1]);<a name="line.500"></a>
<FONT color="green">501</FONT>    <a name="line.501"></a>
<FONT color="green">502</FONT>                ValueDataset[] a = this.datasets;<a name="line.502"></a>
<FONT color="green">503</FONT>                MeterNeedle[] b = this.seriesNeedle;<a name="line.503"></a>
<FONT color="green">504</FONT>                this.datasets = t;<a name="line.504"></a>
<FONT color="green">505</FONT>                this.seriesNeedle = p;<a name="line.505"></a>
<FONT color="green">506</FONT>    <a name="line.506"></a>
<FONT color="green">507</FONT>                for (--i; i &gt;= 0; --i) {<a name="line.507"></a>
<FONT color="green">508</FONT>                    a[i] = null;<a name="line.508"></a>
<FONT color="green">509</FONT>                    b[i] = null;<a name="line.509"></a>
<FONT color="green">510</FONT>                }<a name="line.510"></a>
<FONT color="green">511</FONT>                dataset.addChangeListener(this);<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>         * Draws the plot on a Java 2D graphics device (such as the screen or a <a name="line.516"></a>
<FONT color="green">517</FONT>         * printer).<a name="line.517"></a>
<FONT color="green">518</FONT>         *<a name="line.518"></a>
<FONT color="green">519</FONT>         * @param g2  the graphics device.<a name="line.519"></a>
<FONT color="green">520</FONT>         * @param area  the area within which the plot should be drawn.<a name="line.520"></a>
<FONT color="green">521</FONT>         * @param anchor  the anchor point (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.521"></a>
<FONT color="green">522</FONT>         * @param parentState  the state from the parent plot, if there is one.<a name="line.522"></a>
<FONT color="green">523</FONT>         * @param info  collects info about the drawing.<a name="line.523"></a>
<FONT color="green">524</FONT>         */<a name="line.524"></a>
<FONT color="green">525</FONT>        public void draw(Graphics2D g2, Rectangle2D area, Point2D anchor,<a name="line.525"></a>
<FONT color="green">526</FONT>                         PlotState parentState,<a name="line.526"></a>
<FONT color="green">527</FONT>                         PlotRenderingInfo info) {<a name="line.527"></a>
<FONT color="green">528</FONT>    <a name="line.528"></a>
<FONT color="green">529</FONT>            int outerRadius = 0;<a name="line.529"></a>
<FONT color="green">530</FONT>            int innerRadius = 0;<a name="line.530"></a>
<FONT color="green">531</FONT>            int x1, y1, x2, y2;<a name="line.531"></a>
<FONT color="green">532</FONT>            double a;<a name="line.532"></a>
<FONT color="green">533</FONT>    <a name="line.533"></a>
<FONT color="green">534</FONT>            if (info != null) {<a name="line.534"></a>
<FONT color="green">535</FONT>                info.setPlotArea(area);<a name="line.535"></a>
<FONT color="green">536</FONT>            }<a name="line.536"></a>
<FONT color="green">537</FONT>    <a name="line.537"></a>
<FONT color="green">538</FONT>            // adjust for insets...<a name="line.538"></a>
<FONT color="green">539</FONT>            RectangleInsets insets = getInsets();<a name="line.539"></a>
<FONT color="green">540</FONT>            insets.trim(area);<a name="line.540"></a>
<FONT color="green">541</FONT>    <a name="line.541"></a>
<FONT color="green">542</FONT>            // draw the background<a name="line.542"></a>
<FONT color="green">543</FONT>            if (this.drawBorder) {<a name="line.543"></a>
<FONT color="green">544</FONT>                drawBackground(g2, area);<a name="line.544"></a>
<FONT color="green">545</FONT>            }<a name="line.545"></a>
<FONT color="green">546</FONT>    <a name="line.546"></a>
<FONT color="green">547</FONT>            int midX = (int) (area.getWidth() / 2);<a name="line.547"></a>
<FONT color="green">548</FONT>            int midY = (int) (area.getHeight() / 2);<a name="line.548"></a>
<FONT color="green">549</FONT>            int radius = midX;<a name="line.549"></a>
<FONT color="green">550</FONT>            if (midY &lt; midX) {<a name="line.550"></a>
<FONT color="green">551</FONT>                radius = midY;<a name="line.551"></a>
<FONT color="green">552</FONT>            }<a name="line.552"></a>
<FONT color="green">553</FONT>            --radius;<a name="line.553"></a>
<FONT color="green">554</FONT>            int diameter = 2 * radius;<a name="line.554"></a>
<FONT color="green">555</FONT>    <a name="line.555"></a>
<FONT color="green">556</FONT>            midX += (int) area.getMinX();<a name="line.556"></a>
<FONT color="green">557</FONT>            midY += (int) area.getMinY();<a name="line.557"></a>
<FONT color="green">558</FONT>    <a name="line.558"></a>
<FONT color="green">559</FONT>            this.circle1.setFrame(midX - radius, midY - radius, diameter, diameter);<a name="line.559"></a>
<FONT color="green">560</FONT>            this.circle2.setFrame(<a name="line.560"></a>
<FONT color="green">561</FONT>                midX - radius + 15, midY - radius + 15, <a name="line.561"></a>
<FONT color="green">562</FONT>                diameter - 30, diameter - 30<a name="line.562"></a>
<FONT color="green">563</FONT>            );<a name="line.563"></a>
<FONT color="green">564</FONT>            g2.setPaint(this.rosePaint);<a name="line.564"></a>
<FONT color="green">565</FONT>            this.a1 = new Area(this.circle1);<a name="line.565"></a>
<FONT color="green">566</FONT>            this.a2 = new Area(this.circle2);<a name="line.566"></a>
<FONT color="green">567</FONT>            this.a1.subtract(this.a2);<a name="line.567"></a>
<FONT color="green">568</FONT>            g2.fill(this.a1);<a name="line.568"></a>
<FONT color="green">569</FONT>    <a name="line.569"></a>
<FONT color="green">570</FONT>            g2.setPaint(this.roseCenterPaint);<a name="line.570"></a>
<FONT color="green">571</FONT>            x1 = diameter - 30;<a name="line.571"></a>
<FONT color="green">572</FONT>            g2.fillOval(midX - radius + 15, midY - radius + 15, x1, x1);<a name="line.572"></a>
<FONT color="green">573</FONT>            g2.setPaint(this.roseHighlightPaint);<a name="line.573"></a>
<FONT color="green">574</FONT>            g2.drawOval(midX - radius, midY - radius, diameter, diameter);<a name="line.574"></a>
<FONT color="green">575</FONT>            x1 = diameter - 20;<a name="line.575"></a>
<FONT color="green">576</FONT>            g2.drawOval(midX - radius + 10, midY - radius + 10, x1, x1);<a name="line.576"></a>
<FONT color="green">577</FONT>            x1 = diameter - 30;<a name="line.577"></a>
<FONT color="green">578</FONT>            g2.drawOval(midX - radius + 15, midY - radius + 15, x1, x1);<a name="line.578"></a>
<FONT color="green">579</FONT>            x1 = diameter - 80;<a name="line.579"></a>
<FONT color="green">580</FONT>            g2.drawOval(midX - radius + 40, midY - radius + 40, x1, x1);<a name="line.580"></a>
<FONT color="green">581</FONT>    <a name="line.581"></a>
<FONT color="green">582</FONT>            outerRadius = radius - 20;<a name="line.582"></a>
<FONT color="green">583</FONT>            innerRadius = radius - 32;<a name="line.583"></a>
<FONT color="green">584</FONT>            for (int w = 0; w &lt; 360; w += 15) {<a name="line.584"></a>
<FONT color="green">585</FONT>                a = Math.toRadians(w);<a name="line.585"></a>
<FONT color="green">586</FONT>                x1 = midX - ((int) (Math.sin(a) * innerRadius));<a name="line.586"></a>
<FONT color="green">587</FONT>                x2 = midX - ((int) (Math.sin(a) * outerRadius));<a name="line.587"></a>
<FONT color="green">588</FONT>                y1 = midY - ((int) (Math.cos(a) * innerRadius));<a name="line.588"></a>
<FONT color="green">589</FONT>                y2 = midY - ((int) (Math.cos(a) * outerRadius));<a name="line.589"></a>
<FONT color="green">590</FONT>                g2.drawLine(x1, y1, x2, y2);<a name="line.590"></a>
<FONT color="green">591</FONT>            }<a name="line.591"></a>
<FONT color="green">592</FONT>    <a name="line.592"></a>
<FONT color="green">593</FONT>            g2.setPaint(this.roseHighlightPaint);<a name="line.593"></a>