Examples with NoninvertibleModelException mpicbg.models.NoninvertibleModelException used on opensource projects

Example 6 with NoninvertibleModelException

use of mpicbg.models.NoninvertibleModelException in project TrakEM2 by trakem2.

the class TransformMesh method applyInverseInPlace.

/**
 * Catch non-invertible locations outside of the meshes boundaries and
 * transfer them with the affine defined by the `closest' affine (the affine
 * whose summed up control points distances to location are smallest).
 */
@Override
public void applyInverseInPlace(final double[] location) throws NoninvertibleModelException {
    assert location.length == 2 : "2d transform meshs can be applied to 2d points only.";
    final Set<AffineModel2D> s = av.keySet();
    for (final AffineModel2D ai : s) {
        final ArrayList<PointMatch> pm = av.get(ai);
        if (isInConvexTargetPolygon(pm, location)) {
            ai.applyInverseInPlace(location);
            return;
        }
    }
    /* not in the mesh, find the closest affine */
    double dMin = Double.MAX_VALUE;
    AffineModel2D closestAffine = new AffineModel2D();
    final double x = location[0];
    final double y = location[1];
    for (final AffineModel2D ai : s) {
        final ArrayList<PointMatch> pm = av.get(ai);
        double d = 0;
        for (final PointMatch p : pm) {
            final double[] w = p.getP2().getW();
            final double dx = w[0] - x;
            final double dy = w[1] - y;
            d += Math.sqrt(dx * dx + dy * dy);
        }
        if (d < dMin) {
            dMin = d;
            closestAffine = ai;
        }
    }
    closestAffine.applyInverseInPlace(location);
    throw new NoninvertibleModelException("Mesh external location ( " + x + ", " + y + " ) transferred to ( " + location[0] + ", " + location[1] + " ) by closest affine.");
}