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svn diff --extensions "--unified --ignore-space-change --ignore-all-space --ignore-eol-style" -r24484:24485 https://svn.osgeo.org/geotools/trunk/modules/library/referencing/src/main/java/org/geotools/referencing/operation/transform/LinearTransform1D.java| Revision 24484 | Revision 24485 |
|---|---|
* Tests whether this transform does not move any points.
*/
public boolean isIdentity() {
return offset==0 && scale==1;
}
/**
* Gets the derivative of this transform at a point. This implementation is different
* from the default {@link AbstractMathTransform#derivative} implementation in that no
* coordinate point is required and {@link Double#NaN} may be a legal output value for |
* Tests whether this transform does not move any points.
*/
public boolean isIdentity() {
return isIdentity(0);
}
/**
* Tests whether this transform does not move any points.
*
* <p>
* It uses the provided <code>tolerance</code> before perfoming
* the check.
* @snce 2.3.1
*/
public boolean isIdentity(double tolerance) {
tolerance=Math.abs(tolerance);
return Math.abs(offset)<=tolerance&& Math.abs(scale-1)<=tolerance;
}
/**
* Gets the derivative of this transform at a point. This implementation is different
* from the default {@link AbstractMathTransform#derivative} implementation in that no
* coordinate point is required and {@link Double#NaN} may be a legal output value for |