You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@sis.apache.org by "Martin Desruisseaux (JIRA)" <ji...@apache.org> on 2019/04/30 14:11:00 UTC
[jira] [Updated] (SIS-370) Improve CoordinateOperation WKT for axis
changes and Molodensky parameters
[ https://issues.apache.org/jira/browse/SIS-370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin Desruisseaux updated SIS-370:
------------------------------------
Description:
The Well Known Text (WKT) formatting of {{CoordinateOperation}} objects have the following shortcomings:
In the formatting of Molodensky Parameters, _Semi-major axis length difference_ and _Flattening difference_ parameters are wrongly set to NaN. Note that this issue happen only for {{CoordinateOperation}} WKT, not for {{MathTransform}} WKT.
Operation steps inserted for changing axis order are shown as affine transform, which is difficult to read for most users. The formatter should detect automatically when a matrix is square, of size 3×3 or 4×4 and having 1 value on anti-diagonal (except last row) and show instead one of the following operations:
* EPSG::15498 — axis order change (2D)
* EPSG::15499 — axis order change (geographic3D horizontal)
was:
The Well Known Text (WKT) formatting of {{CoordinateOperation}} objects have the following shortcomings:
In the formatting of Molodensky Parameters, _Semi-major axis length difference_ and _Flattening difference_ parameters are wrongly set to NaN. Note that this issue happen only for {{CoordinateOperation}} WKT, not for {{MathTransform}} WKT.
Operation steps inserted for changing axis order are shown as affine transform, which is difficult to read for more users. The formatter should detect automatically when a matrix is square, of size 3×3 or 4×4 and having 1 value on anti-diagonal (except last row) and show instead one of the following operations:
* EPSG::15498 — axis order change (2D)
* EPSG::15499 — axis order change (geographic3D horizontal)
> Improve CoordinateOperation WKT for axis changes and Molodensky parameters
> --------------------------------------------------------------------------
>
> Key: SIS-370
> URL: https://issues.apache.org/jira/browse/SIS-370
> Project: Spatial Information Systems
> Issue Type: Improvement
> Components: Referencing
> Affects Versions: 0.7, 0.8
> Reporter: Martin Desruisseaux
> Assignee: Martin Desruisseaux
> Priority: Minor
> Fix For: 1.1
>
>
> The Well Known Text (WKT) formatting of {{CoordinateOperation}} objects have the following shortcomings:
> In the formatting of Molodensky Parameters, _Semi-major axis length difference_ and _Flattening difference_ parameters are wrongly set to NaN. Note that this issue happen only for {{CoordinateOperation}} WKT, not for {{MathTransform}} WKT.
> Operation steps inserted for changing axis order are shown as affine transform, which is difficult to read for most users. The formatter should detect automatically when a matrix is square, of size 3×3 or 4×4 and having 1 value on anti-diagonal (except last row) and show instead one of the following operations:
> * EPSG::15498 — axis order change (2D)
> * EPSG::15499 — axis order change (geographic3D horizontal)
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)