Java LookupPaintScale类代码示例

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Confirm that cloning works.
 */
@Test
public void testCloning() throws CloneNotSupportedException {
    XYBlockRenderer r1 = new XYBlockRenderer();
    LookupPaintScale scale1 = new LookupPaintScale();
    r1.setPaintScale(scale1);
    XYBlockRenderer r2 = (XYBlockRenderer) r1.clone();
    assertTrue(r1 != r2);
    assertTrue(r1.getClass() == r2.getClass());
    assertTrue(r1.equals(r2));

    // check independence
    scale1.add(0.5, Color.red);
    assertFalse(r1.equals(r2));
    LookupPaintScale scale2 = (LookupPaintScale) r2.getPaintScale();
    scale2.add(0.5, Color.red);
    assertTrue(r1.equals(r2));
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Confirm that cloning works.
 */
@Test
public void testCloning() throws CloneNotSupportedException {
    XYBlockRenderer r1 = new XYBlockRenderer();
    LookupPaintScale scale1 = new LookupPaintScale();
    r1.setPaintScale(scale1);
    XYBlockRenderer r2 = (XYBlockRenderer) r1.clone();
    assertTrue(r1 != r2);
    assertTrue(r1.getClass() == r2.getClass());
    assertTrue(r1.equals(r2));

    // check independence
    scale1.add(0.5, Color.RED);
    assertFalse(r1.equals(r2));
    LookupPaintScale scale2 = (LookupPaintScale) r2.getPaintScale();
    scale2.add(0.5, Color.RED);
    assertTrue(r1.equals(r2));
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
protected static final LookupPaintScale createLUT(final int ncol, final float vmin, final float vmax,
		final Color start, final Color end) {
	final float[][] colors =
			new float[][] {
					{ start.getRed() / 255f, start.getGreen() / 255f, start.getBlue() / 255f,
							start.getAlpha() / 255f },
					{ end.getRed() / 255f, end.getGreen() / 255f, end.getBlue() / 255f, end.getAlpha() / 255f } };
	final float[] limits = new float[] { 0, 1 };
	final LookupPaintScale lut = new LookupPaintScale(vmin, vmax, start);
	float val;
	float r, g, b, a;
	for (int j = 0; j < ncol; j++) {
		val = j / (ncol - 0.99f);
		final int i = 0;
		r = colors[i][0] + (val - limits[i]) / (limits[i + 1] - limits[i]) * (colors[i + 1][0] - colors[i][0]);
		g = colors[i][1] + (val - limits[i]) / (limits[i + 1] - limits[i]) * (colors[i + 1][1] - colors[i][1]);
		b = colors[i][2] + (val - limits[i]) / (limits[i + 1] - limits[i]) * (colors[i + 1][2] - colors[i][2]);
		a = colors[i][3] + (val - limits[i]) / (limits[i + 1] - limits[i]) * (colors[i + 1][3] - colors[i][3]);
		lut.add(val * (vmax - vmin) + vmin, new Color(r, g, b, a));
	}
	return lut;
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Some checks for the other constructor.
 */
public void testConstructor2() {
    LookupPaintScale s = new LookupPaintScale(1.0, 2.0, Color.red);
    assertEquals(1.0, s.getLowerBound(), EPSILON);
    assertEquals(2.0, s.getUpperBound(), EPSILON);
    assertEquals(Color.red, s.getDefaultPaint());
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Some checks for the equals() method.
 */
@Test
public void testEquals() {
    XYShapeRenderer r1 = new XYShapeRenderer();
    XYShapeRenderer r2 = new XYShapeRenderer();
    assertTrue(r1.equals(r2));
    assertTrue(r2.equals(r1));

    r1.setPaintScale(new LookupPaintScale(1.0, 2.0, Color.white));
    assertFalse(r1.equals(r2));
    r2.setPaintScale(new LookupPaintScale(1.0, 2.0, Color.white));
    assertTrue(r1.equals(r2));

    r1.setDrawOutlines(true);
    assertFalse(r1.equals(r2));
    r2.setDrawOutlines(true);
    assertTrue(r1.equals(r2));

    r1.setUseOutlinePaint(false);
    assertFalse(r1.equals(r2));
    r2.setUseOutlinePaint(false);
    assertTrue(r1.equals(r2));

    r1.setUseFillPaint(true);
    assertFalse(r1.equals(r2));
    r2.setUseFillPaint(true);
    assertTrue(r1.equals(r2));

    r1.setGuideLinesVisible(true);
    assertFalse(r1.equals(r2));
    r2.setGuideLinesVisible(true);
    assertTrue(r1.equals(r2));

    r1.setGuideLinePaint(Color.red);
    assertFalse(r1.equals(r2));
    r2.setGuideLinePaint(Color.red);
    assertTrue(r1.equals(r2));

}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Creates a new <code>XYShapeRenderer</code> instance with default
 * attributes.
 */
public XYShapeRenderer() {
    this.paintScale = new LookupPaintScale();
    this.useFillPaint = false;
    this.drawOutlines = false;
    this.useOutlinePaint = true;
    this.guideLinesVisible = false;
    this.guideLinePaint = Color.darkGray;
    this.guideLineStroke = new BasicStroke();
    setBaseShape(new Ellipse2D.Double(-5.0, -5.0, 10.0, 10.0));
    setAutoPopulateSeriesShape(false);
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Creates a new {@code XYShapeRenderer} instance with default
 * attributes.
 */
public XYShapeRenderer() {
    this.paintScale = new LookupPaintScale();
    this.useFillPaint = false;
    this.drawOutlines = false;
    this.useOutlinePaint = true;
    this.guideLinesVisible = false;
    this.guideLinePaint = Color.darkGray;
    this.guideLineStroke = new BasicStroke();
    setDefaultShape(new Ellipse2D.Double(-5.0, -5.0, 10.0, 10.0));
    setAutoPopulateSeriesShape(false);
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Some checks for the equals() method.
 */
@Test
public void testEquals() {
    XYShapeRenderer r1 = new XYShapeRenderer();
    XYShapeRenderer r2 = new XYShapeRenderer();
    assertTrue(r1.equals(r2));
    assertTrue(r2.equals(r1));

    r1.setPaintScale(new LookupPaintScale(1.0, 2.0, Color.WHITE));
    assertFalse(r1.equals(r2));
    r2.setPaintScale(new LookupPaintScale(1.0, 2.0, Color.WHITE));
    assertTrue(r1.equals(r2));

    r1.setDrawOutlines(true);
    assertFalse(r1.equals(r2));
    r2.setDrawOutlines(true);
    assertTrue(r1.equals(r2));

    r1.setUseOutlinePaint(false);
    assertFalse(r1.equals(r2));
    r2.setUseOutlinePaint(false);
    assertTrue(r1.equals(r2));

    r1.setUseFillPaint(true);
    assertFalse(r1.equals(r2));
    r2.setUseFillPaint(true);
    assertTrue(r1.equals(r2));

    r1.setGuideLinesVisible(true);
    assertFalse(r1.equals(r2));
    r2.setGuideLinesVisible(true);
    assertTrue(r1.equals(r2));

    r1.setGuideLinePaint(Color.RED);
    assertFalse(r1.equals(r2));
    r2.setGuideLinePaint(Color.RED);
    assertTrue(r1.equals(r2));

}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Some checks for the equals() method.
 */
public void testEquals() {
    XYShapeRenderer r1 = new XYShapeRenderer();
    XYShapeRenderer r2 = new XYShapeRenderer();
    assertTrue(r1.equals(r2));
    assertTrue(r2.equals(r1));

    r1.setPaintScale(new LookupPaintScale(1.0, 2.0, Color.white));
    assertFalse(r1.equals(r2));
    r2.setPaintScale(new LookupPaintScale(1.0, 2.0, Color.white));
    assertTrue(r1.equals(r2));

    r1.setDrawOutlines(true);
    assertFalse(r1.equals(r2));
    r2.setDrawOutlines(true);
    assertTrue(r1.equals(r2));

    r1.setUseOutlinePaint(false);
    assertFalse(r1.equals(r2));
    r2.setUseOutlinePaint(false);
    assertTrue(r1.equals(r2));

    r1.setUseFillPaint(true);
    assertFalse(r1.equals(r2));
    r2.setUseFillPaint(true);
    assertTrue(r1.equals(r2));

    r1.setGuideLinesVisible(true);
    assertFalse(r1.equals(r2));
    r2.setGuideLinesVisible(true);
    assertTrue(r1.equals(r2));

    r1.setGuideLinePaint(Color.red);
    assertFalse(r1.equals(r2));
    r2.setGuideLinePaint(Color.red);
    assertTrue(r1.equals(r2));

}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
protected static void addValuesToPaintScale(LookupPaintScale paintScale, double lowerBound, double upperBound,
                                            Color lowColor, Color highColor)
{
    int distinctValues = DISTINCT_PALETTE_VALUES;

    if (upperBound <= lowerBound)
        upperBound = lowerBound + .0001;
    double increment = (upperBound - lowerBound) / distinctValues;

    int redDiff = highColor.getRed() - lowColor.getRed();
    int greenDiff = highColor.getGreen() - lowColor.getGreen();
    int blueDiff = highColor.getBlue() - lowColor.getBlue();
    double redIncrement = (redDiff / distinctValues);
    double greenIncrement = (greenDiff / distinctValues);
    double blueIncrement = (blueDiff / distinctValues);

    _log.debug("Palette: ");

    for (int i=0; i<distinctValues; i++)
    {
        int r = (int) (lowColor.getRed() + (i * redIncrement));
        int g = (int) (lowColor.getGreen() + (i * greenIncrement));
        int b = (int) (lowColor.getBlue() + (i * blueIncrement));
        Color incrementColor = new Color(r,g,b);
        double incrementStart = lowerBound + (i * increment);
        paintScale.add(incrementStart, incrementColor);
        _log.debug("\t" + incrementStart + "-" + (incrementStart + increment) + ": " + incrementColor);
    }
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Creates a paintscale that has _distinctValues_ even increments between
 * lowColor and highColor, starting with value lowerBound and ending with upperBound
 * @param lowerBound
 * @param upperBound
 * @param lowColor
 * @param highColor
 * @return
 */
public static LookupPaintScale createPaintScale(double lowerBound,
                                   double upperBound,
                                   Color lowColor, Color highColor)
{
    //prevent rounding errors that make highest value undefine
    LookupPaintScale result = new LookupPaintScale(lowerBound, upperBound+0.01, lowColor);
    addValuesToPaintScale(result, lowerBound, upperBound, lowColor, highColor);
    return result;
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Create a paint scale that cycles from white to blue in the positive range, defines a shade value at 1.0, and
 * defaults to RED for everything else
 * @return
 */
protected LookupPaintScale createHeatMapPaintScale()
{
    LookupPaintScale result = new LookupPaintScale(-1, upperZBound*=1.04, Color.RED);
    addValuesToPaintScale(result, 0, upperZBound, Color.WHITE, Color.BLUE);
    //-1 is special value for background level
    Color shadeColor = new Color(245, 245, 245);
    addValuesToPaintScale(result, -1.1, -0.9, shadeColor, shadeColor);
    
    return result;
}
 

import org.jfree.chart.renderer.LookupPaintScale; //导入依赖的package包/类
/**
 * Test that the equals() method distinguishes all fields.
 */
public void testEquals() {
    
    // default instances
    PaintScaleLegend l1 = new PaintScaleLegend(new GrayPaintScale(), 
            new NumberAxis("X"));
    PaintScaleLegend l2 = new PaintScaleLegend(new GrayPaintScale(), 
            new NumberAxis("X"));
    assertTrue(l1.equals(l2));
    assertTrue(l2.equals(l1));
    
    // paintScale
    l1.setScale(new LookupPaintScale());
    assertFalse(l1.equals(l2));
    l2.setScale(new LookupPaintScale());
    assertTrue(l1.equals(l2));
    
    // axis
    l1.setAxis(new NumberAxis("Axis 2"));
    assertFalse(l1.equals(l2));
    l2.setAxis(new NumberAxis("Axis 2"));
    assertTrue(l1.equals(l2));
    
    // axisLocation
    l1.setAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
    assertFalse(l1.equals(l2));
    l2.setAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
    assertTrue(l1.equals(l2));
    
    // axisOffset
    l1.setAxisOffset(99.0);
    assertFalse(l1.equals(l2));
    l2.setAxisOffset(99.0);
    assertTrue(l1.equals(l2));
    
    // stripWidth
    l1.setStripWidth(99.0);
    assertFalse(l1.equals(l2));
    l2.setStripWidth(99.0);
    assertTrue(l1.equals(l2));
    
    // stripOutlineVisible
    l1.setStripOutlineVisible(!l1.isStripOutlineVisible());
    assertFalse(l1.equals(l2));
    l2.setStripOutlineVisible(l1.isStripOutlineVisible());
    assertTrue(l1.equals(l2));
    
    // stripOutlinePaint
    l1.setStripOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
            3.0f, 4.0f, Color.blue));
    assertFalse(l1.equals(l2));
    l2.setStripOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.red,
            3.0f, 4.0f, Color.blue));
    assertTrue(l1.equals(l2));
    
    // stripOutlineStroke
    l1.setStripOutlineStroke(new BasicStroke(1.1f));
    assertFalse(l1.equals(l2));
    l2.setStripOutlineStroke(new BasicStroke(1.1f));
    assertTrue(l1.equals(l2));
    
    // backgroundPaint
    l1.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
            3.0f, 4.0f, Color.blue));
    assertFalse(l1.equals(l2));
    l2.setBackgroundPaint(new GradientPaint(1.0f, 2.0f, Color.red,
            3.0f, 4.0f, Color.blue));
    assertTrue(l1.equals(l2));
        
}