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From "Martin Desruisseaux (Jira)" <>
Subject [jira] [Created] (SIS-472) Unexpected lost of vertical coordinate
Date Wed, 11 Sep 2019 10:14:00 GMT
Martin Desruisseaux created SIS-472:

             Summary: Unexpected lost of vertical coordinate
                 Key: SIS-472
             Project: Spatial Information Systems
          Issue Type: Bug
          Components: Referencing
    Affects Versions: 1.0
            Reporter: Martin Desruisseaux

Conversion from projected (x,y,h) to geographic (φ,λ,H) coordinates causes the lost of vertical
coordinates, which is set to NaN. Actually given that operation implies a transformation from
geoidal to ellipsoidal height and SIS-362 is not yet fixed, we would rather expect an exception
to be thrown. Code to reproduce:

import org.apache.sis.referencing.CRS;
import org.apache.sis.referencing.CommonCRS;
import org.opengis.referencing.operation.CoordinateOperation;

final class Test {
    public static void main(String[] args) throws Exception {
        CoordinateReferenceSystem sourceCRS = CRS.compound(CRS.forCode("EPSG:2154"),;
        CoordinateReferenceSystem targetCRS = CommonCRS.WGS84.geographic3D();
        CoordinateOperation op = CRS.findOperation(sourceCRS, targetCRS, null);

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