Java Roi.getPosition方法代码示例

import ij.gui.Roi; //导入方法依赖的package包/类
/**
 * Return a list of ROIs that are active in the given slice, sliceNumber.
 * ROIs without a slice number are assumed to be active in all slices.
 *
 * @param roiMan an instance of {@link RoiManager}
 * @param stack a image stack
 * @param sliceNumber the number of slice in the stack.
 * @return A list of active ROIs on the slice. Returns an empty list if
 *         roiMan == null or stack == null Returns an empty list if slice
 *         number is out of bounds
 */
public static ArrayList<Roi> getSliceRoi(final RoiManager roiMan, final ImageStack stack, final int sliceNumber) {
	final ArrayList<Roi> roiList = new ArrayList<Roi>();

	if (roiMan == null || stack == null) {
		return roiList;
	}

	if (sliceNumber < 1 || sliceNumber > stack.getSize()) {
		return roiList;
	}

	final Roi[] rois = roiMan.getRoisAsArray();
	for (final Roi roi : rois) {
		final String roiName = roi.getName();
		if (roiName == null) {
			continue;
		}
		final int roiSliceNumber = roiMan.getSliceNumber(roiName);
		final int roiPosition = roi.getPosition();
		if (roiSliceNumber == sliceNumber || roiSliceNumber == NO_SLICE_NUMBER || roiPosition == sliceNumber) {
			roiList.add(roi);
		}
	}
	return roiList;
}
 

import ij.gui.Roi; //导入方法依赖的package包/类
/**
 * Check if the point is an 'unprotected' end point.
 *
 * @param point actual point
 * @param roi Only points outside this ROI will have end-point status. ROI
 *            can be associated to a single image in the stack (or all) as
 *            per {@link ij.gui.Roi#getPosition ij.gui.Roi.getPosition()}
 * @return true if the point has end-point status
 */
private boolean isEndPoint(Point point, Roi roi)
{
	boolean endPoint = isEndPoint(point);
	if (endPoint && roi != null)
	{
		// Is roi associated with all the images in the ImageStack?
		boolean roiContainsZ = (roi.getPosition()==0) ? true : roi.getPosition()==point.z;

		// Maintain end-point status only if point lies outside roi boundaries
		endPoint = !(roi.contains(point.x, point.y) && roiContainsZ);
	}
	return endPoint;
}
 

import ij.gui.Roi; //导入方法依赖的package包/类
/**
 * Extracts the points from the given Point ROI
 * 
 * @param roi
 * @return The list of points (can be zero length)
 */
public static AssignedPoint[] extractRoiPoints(Roi roi)
{
	AssignedPoint[] roiPoints = null;

	if (roi != null && roi.getType() == Roi.POINT)
	{
		Polygon p = ((PolygonRoi) roi).getNonSplineCoordinates();
		int n = p.npoints;
		Rectangle bounds = roi.getBounds();
		// The ROI has either a hyperstack position or a stack position, but not both.
		// Both will be zero if the ROI has no 3D information.
		int z = roi.getZPosition();
		if (z == 0)
			z = roi.getPosition();

		roiPoints = new AssignedPoint[n];
		for (int i = 0; i < n; i++)
		{
			roiPoints[i] = new AssignedPoint(bounds.x + p.xpoints[i], bounds.y + p.ypoints[i], z, i);
		}
	}
	else
	{
		roiPoints = new AssignedPoint[0];
	}

	return roiPoints;
}