[SIS-376] Geographic/geocentric conversion fails if the geographic CRS is two-dimensional

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.7, 0.8
• Fix Version/s: 1.0
• Component/s: Referencing
• Assignee: Martin Desruisseaux
• Reporter: Martin Desruisseaux
• Created: 24/Nov/17 11:32
• Updated: 20/Oct/19 19:28
• Resolved: 30/Oct/18 09:37

Description

Following Java code:

GeographicCRS geographic = CommonCRS.WGS84.geographic();
GeocentricCRS geocentric = CommonCRS.WGS84.geocentric();
CRS.findOperation(geographic, geocentric, null);

fails with the following exception.

org.apache.sis.referencing.factory.InvalidGeodeticParameterException: Les transformations « Affine parametric transformation » et « Geographic/geocentric conversions » ne peuvent pas être combinées. Les dimensions des objets (2D et 3D) ne concordent pas.
    at org.apache.sis.referencing.operation.transform.DefaultMathTransformFactory.createConcatenatedTransform(DefaultMathTransformFactory.java:1313)
    at org.apache.sis.referencing.operation.transform.DefaultMathTransformFactory.swapAndScaleAxes(DefaultMathTransformFactory.java:1158)
    at org.apache.sis.referencing.operation.transform.DefaultMathTransformFactory.createParameterizedTransform(DefaultMathTransformFactory.java:1058)
    at org.apache.sis.referencing.operation.CoordinateOperationFinder.createOperationStep(CoordinateOperationFinder.java:572)
    at org.apache.sis.referencing.operation.CoordinateOperationFinder.createOperation(CoordinateOperationFinder.java:272)
    at org.apache.sis.referencing.operation.DefaultCoordinateOperationFactory.createOperation(DefaultCoordinateOperationFactory.java:814)
    at org.apache.sis.referencing.CRS.findOperation(CRS.java:644)
Caused by: org.opengis.geometry.MismatchedDimensionException: Les transformations « Affine parametric transformation » et « Geographic/geocentric conversions » ne peuvent pas être combinées. Les dimensions des objets (2D et 3D) ne concordent pas.
    at org.apache.sis.referencing.operation.transform.ConcatenatedTransform.create(ConcatenatedTransform.java:164)
    at org.apache.sis.referencing.operation.transform.DefaultMathTransformFactory.createConcatenatedTransform(DefaultMathTransformFactory.java:1311)
    ... 7 more

If we replace the call to geographic() by a call to geographic3D, then the code succeed and the converted coordinates are corrects.