Java Rectangle2D.getMinY方法代码示例

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Draws a range crosshair.
 * 
 * @param g2  the graphics target.
 * @param dataArea  the data area.
 * @param orientation  the plot orientation.
 * @param value  the crosshair value.
 * @param axis  the axis against which the value is measured.
 * @param stroke  the stroke used to draw the crosshair line.
 * @param paint  the paint used to draw the crosshair line.
 * 
 * @since 1.0.5
 */
protected void drawRangeCrosshair(Graphics2D g2, Rectangle2D dataArea, 
        PlotOrientation orientation, double value, ValueAxis axis, 
        Stroke stroke, Paint paint) {
    
    if (!axis.getRange().contains(value)) {
        return;
    }
    Line2D line = null;
    if (orientation == PlotOrientation.HORIZONTAL) {
        double xx = axis.valueToJava2D(value, dataArea, 
                RectangleEdge.BOTTOM);
        line = new Line2D.Double(xx, dataArea.getMinY(), xx, 
                dataArea.getMaxY());
    }
    else {
        double yy = axis.valueToJava2D(value, dataArea, 
                RectangleEdge.LEFT);
        line = new Line2D.Double(dataArea.getMinX(), yy, 
                dataArea.getMaxX(), yy);
    }
    g2.setStroke(stroke);
    g2.setPaint(paint);
    g2.draw(line);
   
}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Returns the starting coordinate for the specified category.
 *
 * @param category  the category.
 * @param categoryCount  the number of categories.
 * @param area  the data area.
 * @param edge  the axis location.
 *
 * @return the coordinate.
 */
public double getCategoryStart(int category, int categoryCount, Rectangle2D area,
                               RectangleEdge edge) {

    double result = 0.0;
    if ((edge == RectangleEdge.TOP) || (edge == RectangleEdge.BOTTOM)) {
        result = area.getX() + area.getWidth() * getLowerMargin();
    }
    else if ((edge == RectangleEdge.LEFT) || (edge == RectangleEdge.RIGHT)) {
        result = area.getMinY() + area.getHeight() * getLowerMargin();
    }

    double categorySize = calculateCategorySize(categoryCount, area, edge);
    double categoryGapWidth = calculateCategoryGapSize(categoryCount, area, edge);

    result = result + category * (categorySize + categoryGapWidth);

    return result;
}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Translates a data value to a Java2D value for the second section of the 
 * axis.
 * 
 * @param value  the value.
 * @param area  the data area.
 * @param edge  the edge along which the axis lies.
 * @param length1  the length of the first section.
 * @param length2  the length of the second section.
 * 
 * @return The Java2D coordinate.
 */
private double transEnd(double value, Rectangle2D area, RectangleEdge edge,
                        double length1, double length2) {
    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        max = area.getMaxX();
        min = area.getMaxX() - area.getWidth() * length2 / (length1 + length2);
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        max = area.getMinY();
        min = area.getMinY() + area.getHeight() * length2 / (length1 + length2);
    }
    if (isInverted()) {
        return max - ((value - this.fixedRange.getLowerBound()) 
                / (this.displayEnd - this.fixedRange.getLowerBound())) * (max - min);
    }
    else {
        return min + ((value - this.fixedRange.getLowerBound()) 
                / (this.displayEnd - this.fixedRange.getLowerBound())) * (max - min);
    }

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Fills a band between two values on the axis.  This can be used to color bands between the
 * grid lines.
 *
 * @param g2  the graphics device.
 * @param plot  the plot.
 * @param axis  the domain axis.
 * @param dataArea  the data area.
 * @param start  the start value.
 * @param end  the end value.
 */
public void fillDomainGridBand(Graphics2D g2,
                               XYPlot plot,
                               ValueAxis axis,
                               Rectangle2D dataArea,
                               double start, double end) {

    double x1 = axis.valueToJava2D(start, dataArea, plot.getDomainAxisEdge());
    double x2 = axis.valueToJava2D(end, dataArea, plot.getDomainAxisEdge());
    // TODO: need to change the next line to take account of plot orientation...
    Rectangle2D band = new Rectangle2D.Double(
        x1, dataArea.getMinY(), x2 - x1, dataArea.getMaxY() - dataArea.getMinY()
    );
    Paint paint = plot.getDomainTickBandPaint();

    if (paint != null) {
        g2.setPaint(paint);
        g2.fill(band);
    }

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Draws a range crosshair.
 * 
 * @param g2  the graphics target.
 * @param dataArea  the data area.
 * @param orientation  the plot orientation.
 * @param value  the crosshair value.
 * @param axis  the axis against which the value is measured.
 * @param stroke  the stroke used to draw the crosshair line.
 * @param paint  the paint used to draw the crosshair line.
 * 
 * @since 1.0.4
 */
protected void drawRangeCrosshair(Graphics2D g2, Rectangle2D dataArea, 
        PlotOrientation orientation, double value, ValueAxis axis, 
        Stroke stroke, Paint paint) {
    
    if (axis.getRange().contains(value)) {
        Line2D line = null;
        if (orientation == PlotOrientation.HORIZONTAL) {
            double xx = axis.valueToJava2D(value, dataArea, 
                    RectangleEdge.BOTTOM);
            line = new Line2D.Double(xx, dataArea.getMinY(), xx, 
                    dataArea.getMaxY());
        }
        else {
            double yy = axis.valueToJava2D(value, dataArea, 
                    RectangleEdge.LEFT);
            line = new Line2D.Double(dataArea.getMinX(), yy, 
                    dataArea.getMaxX(), yy);
        }
        g2.setStroke(stroke);
        g2.setPaint(paint);
        g2.draw(line);
    }
    
}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Helper method which returns a value if it lies
 * inside the visible dataArea and otherwise the corresponding
 * coordinate on the border of the dataArea. The PlotOrientation
 * is taken into account. 
 * Useful to avoid possible sun.dc.pr.PRException: endPath: bad path
 * which occurs when trying to draw lines/shapes which in large part
 * lie outside of the visible dataArea.
 * 
 * @param value the value which shall be 
 * @param dataArea  the area within which the data is being drawn.
 * @param plot  the plot (can be used to obtain standard color information etc).
 * @return <code>double</code> value inside the data area.
 */
protected static double restrictValueToDataArea(double value, 
                                                XYPlot plot, 
                                                Rectangle2D dataArea) {
    double min = 0;
    double max = 0;
    if (plot.getOrientation() == PlotOrientation.VERTICAL) {
        min = dataArea.getMinY();
        max = dataArea.getMaxY();
    } 
    else if (plot.getOrientation() ==  PlotOrientation.HORIZONTAL) {
        min = dataArea.getMinX();
        max = dataArea.getMaxX();
    }       
    if (value < min) {
        value = min;
    }
    else if (value > max) {
        value = max;
    }
    return value;
}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Zooms in on a selected region.
 *
 * @param selection  the selected region.
 */
public void zoom(Rectangle2D selection) {

    // get the origin of the zoom selection in the Java2D space used for
    // drawing the chart (that is, before any scaling to fit the panel)
    Point2D selectOrigin = translateScreenToJava2D(new Point(
            (int) Math.ceil(selection.getX()), 
            (int) Math.ceil(selection.getY())));
    PlotRenderingInfo plotInfo = this.info.getPlotInfo();
    Rectangle2D scaledDataArea = getScreenDataArea(
            (int) selection.getCenterX(), (int) selection.getCenterY());
    if ((selection.getHeight() > 0) && (selection.getWidth() > 0)) {

        double hLower = (selection.getMinX() - scaledDataArea.getMinX()) 
            / scaledDataArea.getWidth();
        double hUpper = (selection.getMaxX() - scaledDataArea.getMinX()) 
            / scaledDataArea.getWidth();
        double vLower = (scaledDataArea.getMaxY() - selection.getMaxY()) 
            / scaledDataArea.getHeight();
        double vUpper = (scaledDataArea.getMaxY() - selection.getMinY()) 
            / scaledDataArea.getHeight();

        Plot p = this.chart.getPlot();
        if (p instanceof Zoomable) {
            Zoomable z = (Zoomable) p;
            if (z.getOrientation() == PlotOrientation.HORIZONTAL) {
                z.zoomDomainAxes(vLower, vUpper, plotInfo, selectOrigin);
                z.zoomRangeAxes(hLower, hUpper, plotInfo, selectOrigin);
            }
            else {
                z.zoomDomainAxes(hLower, hUpper, plotInfo, selectOrigin);
                z.zoomRangeAxes(vLower, vUpper, plotInfo, selectOrigin);
            }
        }

    }

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Draws a line perpendicular to the range axis.
 *
 * @param g2  the graphics device.
 * @param plot  the plot.
 * @param axis  the value axis.
 * @param dataArea  the area for plotting data (not yet adjusted for any 3D
 *                  effect).
 * @param value  the value at which the grid line should be drawn.
 * @param paint  the paint.
 * @param stroke  the stroke.
 */
public void drawRangeLine(Graphics2D g2,
                          XYPlot plot,
                          ValueAxis axis,
                          Rectangle2D dataArea,
                          double value,
                          Paint paint,
                          Stroke stroke) {

    Range range = axis.getRange();
    if (!range.contains(value)) {
        return;
    }

    PlotOrientation orientation = plot.getOrientation();
    Line2D line = null;
    double v = axis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge());
    if (orientation == PlotOrientation.HORIZONTAL) {
        line = new Line2D.Double(v, dataArea.getMinY(), v,
                dataArea.getMaxY());
    }
    else if (orientation == PlotOrientation.VERTICAL) {
        line = new Line2D.Double(dataArea.getMinX(), v,
                dataArea.getMaxX(), v);
    }

    g2.setPaint(paint);
    g2.setStroke(stroke);
    g2.draw(line);

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Converts a data value to a coordinate in Java2D space, assuming that the
 * axis runs along one edge of the specified dataArea.
 * <p>
 * Note that it is possible for the coordinate to fall outside the plotArea.
 *
 * @param value  the data value.
 * @param area  the area for plotting the data.
 * @param edge  the axis location.
 *
 * @return The Java2D coordinate.
 * 
 * @see #java2DToValue(double, Rectangle2D, RectangleEdge)
 */
public double valueToJava2D(double value, Rectangle2D area, 
                            RectangleEdge edge) {
    
    Range range = getRange();
    double axisMin = range.getLowerBound();
    double axisMax = range.getUpperBound();

    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        min = area.getX();
        max = area.getMaxX();
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        max = area.getMinY();
        min = area.getMaxY();
    }
    if (isInverted()) {
        return max 
               - ((value - axisMin) / (axisMax - axisMin)) * (max - min);
    }
    else {
        return min 
               + ((value - axisMin) / (axisMax - axisMin)) * (max - min);
    }

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Draws a grid line against the range axis.
 *
 * @param g2  the graphics device.
 * @param plot  the plot.
 * @param axis  the value axis.
 * @param dataArea  the area for plotting data (not yet adjusted for any
 *                  3D effect).
 * @param value  the value at which the grid line should be drawn.
 *
 * @see #drawDomainGridline(Graphics2D, CategoryPlot, Rectangle2D, double)
 *
 */
public void drawRangeGridline(Graphics2D g2,
                              CategoryPlot plot,
                              ValueAxis axis,
                              Rectangle2D dataArea,
                              double value) {

    Range range = axis.getRange();
    if (!range.contains(value)) {
        return;
    }

    PlotOrientation orientation = plot.getOrientation();
    double v = axis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge());
    Line2D line = null;
    if (orientation == PlotOrientation.HORIZONTAL) {
        line = new Line2D.Double(v, dataArea.getMinY(), v,
                dataArea.getMaxY());
    }
    else if (orientation == PlotOrientation.VERTICAL) {
        line = new Line2D.Double(dataArea.getMinX(), v,
                dataArea.getMaxX(), v);
    }

    Paint paint = plot.getRangeGridlinePaint();
    if (paint == null) {
        paint = CategoryPlot.DEFAULT_GRIDLINE_PAINT;
    }
    g2.setPaint(paint);

    Stroke stroke = plot.getRangeGridlineStroke();
    if (stroke == null) {
        stroke = CategoryPlot.DEFAULT_GRIDLINE_STROKE;
    }
    g2.setStroke(stroke);

    g2.draw(line);

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Translates the data value to the display coordinates (Java 2D User Space)
 * of the chart.
 *
 * @param value  the date to be plotted.
 * @param area  the rectangle (in Java2D space) where the data is to be plotted.
 * @param edge  the axis location.
 *
 * @return the coordinate corresponding to the supplied data value.
 */
public double valueToJava2D(double value, Rectangle2D area, RectangleEdge edge) {
    
    value = this.timeline.toTimelineValue(new Date((long) value));

    DateRange range = (DateRange) getRange();
    double axisMin = this.timeline.toTimelineValue(range.getLowerDate());
    double axisMax = this.timeline.toTimelineValue(range.getUpperDate());
    double result = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        double minX = area.getX();
        double maxX = area.getMaxX();
        if (isInverted()) {
            result = maxX + ((value - axisMin) / (axisMax - axisMin)) * (minX - maxX);
        }
        else {
            result = minX + ((value - axisMin) / (axisMax - axisMin)) * (maxX - minX);
        }
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        double minY = area.getMinY();
        double maxY = area.getMaxY();
        if (isInverted()) {
            result = minY + (((value - axisMin) / (axisMax - axisMin)) * (maxY - minY));
        }
        else {
            result = maxY - (((value - axisMin) / (axisMax - axisMin)) * (maxY - minY));
        }
    }
    return result;

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Converts a coordinate in Java2D space to the corresponding data
 * value, assuming that the axis runs along one edge of the specified plotArea.
 *
 * @param java2DValue  the coordinate in Java2D space.
 * @param plotArea  the area in which the data is plotted.
 * @param edge  the axis location.
 *
 * @return the data value.
 */
public double java2DToValue(double java2DValue, Rectangle2D plotArea, RectangleEdge edge) {

    Range range = getRange();
    double axisMin = switchedLog10(range.getLowerBound());
    double axisMax = switchedLog10(range.getUpperBound());

    double plotMin = 0.0;
    double plotMax = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        plotMin = plotArea.getX();
        plotMax = plotArea.getMaxX();
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        plotMin = plotArea.getMaxY();
        plotMax = plotArea.getMinY();
    }

    if (isInverted()) {
        return Math.pow(
            10, axisMax - ((java2DValue - plotMin) / (plotMax - plotMin)) * (axisMax - axisMin)
        );
    }
    else {
        return Math.pow(
            10, axisMin + ((java2DValue - plotMin) / (plotMax - plotMin)) * (axisMax - axisMin)
        );
    }
}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Converts a data value to a coordinate in Java2D space, assuming that
 * the axis runs along one edge of the specified plotArea.
 * Note that it is possible for the coordinate to fall outside the
 * plotArea.
 *
 * @param value  the data value.
 * @param plotArea  the area for plotting the data.
 * @param edge  the axis location.
 *
 * @return the Java2D coordinate.
 */
public double valueToJava2D(double value, Rectangle2D plotArea, RectangleEdge edge) {

    Range range = getRange();
    double axisMin = switchedLog10(range.getLowerBound());
    double axisMax = switchedLog10(range.getUpperBound());

    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        min = plotArea.getMinX();
        max = plotArea.getMaxX();
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        min = plotArea.getMaxY();
        max = plotArea.getMinY();
    }

    value = switchedLog10(value);

    if (isInverted()) {
        return max - (((value - axisMin) / (axisMax - axisMin)) * (max - min));
    }
    else {
        return min + (((value - axisMin) / (axisMax - axisMin)) * (max - min));
    }

}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Converts a value on the axis scale to a Java2D coordinate relative to 
 * the given <code>area</code>, based on the axis running along the 
 * specified <code>edge</code>.
 * 
 * @param value  the data value.
 * @param area  the area.
 * @param edge  the edge.
 * 
 * @return The Java2D coordinate corresponding to <code>value</code>.
 */
public double valueToJava2D(double value, Rectangle2D area, 
        RectangleEdge edge) {
    
    Range range = getRange();
    double axisMin = calculateLog(range.getLowerBound());
    double axisMax = calculateLog(range.getUpperBound());
    value = calculateLog(value);
    
    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        min = area.getX();
        max = area.getMaxX();
    }
    else if (RectangleEdge.isLeftOrRight(edge)) {
        max = area.getMinY();
        min = area.getMaxY();
    }
    if (isInverted()) {
        return max 
               - ((value - axisMin) / (axisMax - axisMin)) * (max - min);
    }
    else {
        return min 
               + ((value - axisMin) / (axisMax - axisMin)) * (max - min);
    }
}
 

import java.awt.geom.Rectangle2D; //导入方法依赖的package包/类
/**
 * Draws the background for the plot.
 *
 * @param g2  the graphics device.
 * @param plot  the plot.
 * @param dataArea  the area inside the axes.
 */
public void drawBackground(Graphics2D g2, CategoryPlot plot, 
                           Rectangle2D dataArea) {

    float x0 = (float) dataArea.getX();
    float x1 = x0 + (float) Math.abs(this.xOffset);
    float x3 = (float) dataArea.getMaxX();
    float x2 = x3 - (float) Math.abs(this.xOffset);

    float y0 = (float) dataArea.getMaxY();
    float y1 = y0 - (float) Math.abs(this.yOffset);
    float y3 = (float) dataArea.getMinY();
    float y2 = y3 + (float) Math.abs(this.yOffset);

    GeneralPath clip = new GeneralPath();
    clip.moveTo(x0, y0);
    clip.lineTo(x0, y2);
    clip.lineTo(x1, y3);
    clip.lineTo(x3, y3);
    clip.lineTo(x3, y1);
    clip.lineTo(x2, y0);
    clip.closePath();

    // fill background...
    Paint backgroundPaint = plot.getBackgroundPaint();
    if (backgroundPaint != null) {
        g2.setPaint(backgroundPaint);
        g2.fill(clip);
    }

    GeneralPath leftWall = new GeneralPath();
    leftWall.moveTo(x0, y0);
    leftWall.lineTo(x0, y2);
    leftWall.lineTo(x1, y3);
    leftWall.lineTo(x1, y1);
    leftWall.closePath();
    g2.setPaint(getWallPaint());
    g2.fill(leftWall);

    GeneralPath bottomWall = new GeneralPath();
    bottomWall.moveTo(x0, y0);
    bottomWall.lineTo(x1, y1);
    bottomWall.lineTo(x3, y1);
    bottomWall.lineTo(x2, y0);
    bottomWall.closePath();
    g2.setPaint(getWallPaint());
    g2.fill(bottomWall);

    // higlight the background corners...
    g2.setPaint(Color.lightGray);
    Line2D corner = new Line2D.Double(x0, y0, x1, y1);
    g2.draw(corner);
    corner.setLine(x1, y1, x1, y3);
    g2.draw(corner);
    corner.setLine(x1, y1, x3, y1);
    g2.draw(corner);

    // draw background image, if there is one...
    Image backgroundImage = plot.getBackgroundImage();
    if (backgroundImage != null) {
        Composite originalComposite = g2.getComposite();
        g2.setComposite(AlphaComposite.getInstance(
                AlphaComposite.SRC, plot.getBackgroundAlpha()));
        g2.drawImage(backgroundImage, (int) x1, (int) y3, 
                (int) (x3 - x1 + 1), (int) (y1 - y3 + 1), null);
        g2.setComposite(originalComposite);
    }

}