api:dk11:java:tatukgis.jdk.tgis_csprojabstract.unproject3d_tgis_point3d
Table of Contents
TGIS_CSProjAbstract.Unproject3D method
DK for Java | tatukgis.jdk.TGIS_CSProjAbstract.Unproject3D | Constructors | Fields | Methods | Properties
Reverse-transforms a single projected easting/northing/elevation point to geodetic coordinates.
Syntax
// Java public TGIS_Point3D Unproject3D( TGIS_Point3D _coords );
// Oxygene public function Unproject3D( _coords : TGIS_Point3D ) : TGIS_Point3D;
Parameters
| Name | Type | Description |
|---|---|---|
| _coords | TGIS_Point3D | Projected coordinate with X=easting, Y=northing, and Z=elevation. |
Result
| Type | Description |
|---|---|
| TGIS_Point3D | Geodetic coordinate with X=longitude and Y=latitude in radians, with Z preserved from the input. |
Remarks
PURPOSE: Unproject one 3D point while preserving elevation and return the result by value.
BEHAVIOR: Calls Unproject3D_Ref internally and returns the transformed coordinates as a new 3D point.
USAGE: Use for isolated 3D inverse transformations.
geodeticPoint = proj.Unproject3D(projectedPoint)
CONSTRAINTS: Works only for revertible projections. Output angles are in radians. For bulk processing, Unproject3D_Ref is more efficient.
2026/07/11 01:22