Hello Michael
Yes this is a bug is SIS. Actually the WKT formatting is okay, the bug
is in the WKT parser. It should not be necessary to specify the
“tgt_semi_major” and similar parameters. This parameter should be
inferred from the ellipsoid.
Would you like to fill a JIRA issue on
https://issues.apache.org/jira/browse/SIS ? Just putting the content of
your email in the description would be enough. Otherwise I can do it if
you prefer.
Regards,
Martin
Le 25/04/2021 à 03:33, Michael Arneson a écrit :
Hi Martin,
Thanks for your help.
When validating the previously mentioned transform, we encountered
what looks to be a bug.
We are unable to create a /CoordinateOperation/ from the WKT that
comes from an existing /CoordinateOperation/ object.
The code below can be used to test this:
/ CoordinateOperationAuthorityFactory opFactory =
(CoordinateOperationAuthorityFactory) CRS.getAuthorityFactory("EPSG");
CoordinateOperation opFromCode =
opFactory.createCoordinateOperation("5630");
String operationWKT = opFromCode.toWKT();
WKTFormat wf = new WKTFormat(null, null);
CoordinateOperation opFromWKT = (CoordinateOperation)
wf.parseObject(operationWKT);/
When trying to execute this code the following error is returned:
/org.apache.sis.io.wkt.UnparsableObjectException: Error in
“COORDINATEOPERATION”: Missing value for “tgt_semi_major” parameter./
/at org.apache.sis.io.wkt.Element.parseFailed(Element.java:383)/
/at
org.apache.sis.io.wkt.GeodeticObjectParser.parseOperation(GeodeticObjectParser.java:2279)/
/at
org.apache.sis.io.wkt.GeodeticObjectParser.parseObject(GeodeticObjectParser.java:306)/
/at
org.apache.sis.io.wkt.AbstractParser.parseObject(AbstractParser.java:283)/
/at
org.apache.sis.io.wkt.GeodeticObjectParser.parseObject(GeodeticObjectParser.java:244)/
/at org.apache.sis.io.wkt.WKTFormat.parse(WKTFormat.java:753)/
/at
org.apache.sis.io.CompoundFormat.parseObject(CompoundFormat.java:317)/
Is this an issue that the WKT returned from
CoordinateOperation/.toWKT() /is not returning all the necessary
parameters or that WKTFormat/.parseObject(String) /is expecting
parameters that are not needed.
Thanks
Michael
