[SIS-488] Handle wrap-around longitude in NADCON grid

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.7, 0.8, 1.0
• Fix Version/s: 1.1
• Component/s: Referencing
• Assignee: Martin Desruisseaux
• Reporter: Martin Desruisseaux
• Created: 19/Feb/20 09:38
• Updated: 24/Sep/21 20:29
• Resolved: 19/Feb/20 13:26

Description

The NADCON grid for Alaska ("alaska.las" and "alaska.los" files) have a domain of validity ranging from -194° to -127.875° of longitude and 46° to 77.125° of latitude. So it has a part defined beyond the -180° limit, with longitude values between -194° and -180°. When asking a coordinate transformation at longitude 170°, the InterpolatedTransform class should understand that this 170° longitude is actually located at -190° longitude in the coordinate system of its NADCON grid.

Issue Links

• fixes: SIS-282 Geographic Offset by Interpolation of Gridded Data (EPSG:9613, 9615, 9633)