Example usage for java.lang ArrayIndexOutOfBoundsException getStackTrace

Introduction

In this page you can find the example usage for java.lang ArrayIndexOutOfBoundsException getStackTrace.

Prototype

public StackTraceElement[] getStackTrace() 

Source Link

Document

Provides programmatic access to the stack trace information printed by #printStackTrace() .

Usage

From source file:uk.ac.sanger.mig.xray.trendlinecropper.utils.TrendCropper.java

/**
 * Crop out a region of the image following the trend line.
 * //from   ww  w . j av a  2 s  .c  o m
 * @param inImage
 *            Image that will be cropped. Original image is not modified
 * @param coefs
 *            coeficients that are used to predict points of the trendline
 * @param trendType
 *            the trend type, produced by the Trend Line node
 * @return image with specified region cropped out
 */
public ImgPlus<T> process(ImgPlus<T> inImage, String coefs, String trendType) {
    final ImgPlus<T> image = inImage.copy();

    final long cols = image.dimension(Image.COL);
    final long rows = image.dimension(Image.ROW);

    // if user didn't set the ending row, will use the last row
    final int actualEndRow = (int) ((endRow == -1) ? rows : endRow);

    final OLSTrendLine trend = getTrendType(trendType, convertCoefs(coefs));

    // random access to traverse the image vertically
    final RandomAccess<T> ra = image.randomAccess();
    // random access to travel anywhere in the image to modify the pixel
    // values
    final RandomAccess<T> modRa = ra.copyRandomAccess();

    ra.setPosition(startRow, Image.ROW);
    ra.setPosition(0, Image.COL);

    final int firstY = ra.getIntPosition(Image.ROW);
    final int firstX = (int) trend.predict(firstY);

    try {
        while (ra.getIntPosition(Image.ROW) != actualEndRow) {

            final int y = ra.getIntPosition(Image.ROW);
            final int x = (int) trend.predict(y);

            // set position to predicted x and y
            modRa.setPosition(x, Image.COL);
            modRa.setPosition(y, Image.ROW);

            // delete pixels to the right of the trend line
            setPixelsIn(modRa, Image.COL, (x + rightMargin), 0, FORWARD, (int) cols);

            // delete pixels to the left of the trend line
            setPixelsIn(modRa, Image.COL, (x - leftMargin), 0, BACKWARD, (int) cols);

            ra.fwd(Image.ROW);
        }
    } catch (ArrayIndexOutOfBoundsException e) {
        // shouldn't get here
        logger.debug(e.getStackTrace());
        logger.fatal("Critical error analysing one of the images.");
    }

    if (cropTop)
        cropTop(image, firstY, firstX);

    return image;
}

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