api:dk11:delphi:giscsbase.tgis_cstransformnadcon
Table of Contents
TGIS_CSTransformNadcon class
DK for Delphi | GisCsBase.TGIS_CSTransformNadcon | Classes | Constructors | Methods | Properties
NADCON grid-shift transformation (EPSG method 9613) for datum conversion using NOAA NADCON grid files.
Syntax
// Delphi type TGIS_CSTransformNadcon = class( TGIS_CSTransformGridShift ) end;
// C++ Builder class PASCALIMPLEMENTATION TGIS_CSTransformNadcon : public TGIS_CSTransformGridShift { };
Inheritance
Constructors
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Assign | public | Copies the shared definition fields from another object. (Inherited from TGIS_CSTransformGridShift) |
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| FromWGS | public | Shift a geodetic coordinate relative to WGS84 into a geodetic coordinate relative to the source datum. (Inherited from TGIS_CSTransformAbstract) |
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| FromWGS3D | public | Shift a geodetic 3D coordinate relative to WGS84 into a geodetic 3D coordinate relative to the source datum using the WGS84->Geocentric->Coordinates pipeline. (Inherited from TGIS_CSTransformAbstract) |
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| FromWGS3D_Ref | public | This method shifts a geodetic coordinate relative to WGS84 into a geodetic coordinate relative to Datum. (Inherited from TGIS_CSTransformGridShift) |
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| MarkDeprecated | public | Marks this coordinate system definition as deprecated or current. (Inherited from TGIS_CSAbstract) |
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| ToWGS | public | Shift a geodetic coordinate relative to the source datum into a geodetic coordinate relative to WGS84. (Inherited from TGIS_CSTransformAbstract) |
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| ToWGS3D | public | Shift a geodetic 3D coordinate relative to the source datum into a geodetic 3D coordinate relative to WGS84 using the Coordinates->Geocentric->WGS84 pipeline. (Inherited from TGIS_CSTransformAbstract) |
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| ToWGS3D_Ref | public | This method shifts a geodetic coordinate relative to Datum into a geodetic coordinate relative to WGS84. (Inherited from TGIS_CSTransformGridShift) |
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Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| A | public | For Methods 9603, 9606, 9607, 9636: X delta of geocentric shift expressed in meters; For Methods 9618, 9119: latitude shift expressed in radians; (Inherited from TGIS_CSTransformAbstract) |
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| AreaEPSG | public | Area EPSG code. (Inherited from TGIS_CSTransformAbstract) |
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| B | public | For Methods 9603, 9606, 9607, 9636: Y delta of geocentric shift expressed in meters; For Methods 9618, 9119: longitude shift expressed in radians; (Inherited from TGIS_CSTransformAbstract) |
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| C | public | For Methods 9603, 9606, 9607, 9636: Z delta of geocentric shift expressed in meters; For Method 9618: gravity height over the ellipsoid height; For Method 9619: unused; (Inherited from TGIS_CSTransformAbstract) |
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| D | public | For Methods 9603, 9606, 9607, 9636: X rotation of geocentric expressed in radians; For Methods 9603, 9618, 9619: unused; (Inherited from TGIS_CSTransformAbstract) |
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| Deprecated | public | Indicates whether this definition is deprecated. (Inherited from TGIS_CSAbstract) |
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| Description | public | Description of the coordinate system definition. (Inherited from TGIS_CSAbstract) |
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| DescriptionEx | public | Descriptive name; for internal use of TGIS_CSAbstractListHelper. (Inherited from TGIS_CSAbstract) |
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| E | public | For Methods 9603, 9606, 9607, 9636: Y rotation of geocentric expressed in radians; For Methods 9603, 9618, 9619: unused; (Inherited from TGIS_CSTransformAbstract) |
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| EllipsoidEPSG | public | EPSG code of the ellipsoid used by the transformation. (Inherited from TGIS_CSTransformAbstract) |
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| EPSG | public | EPSG code. (Inherited from TGIS_CSAbstract) |
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| F | public | For Methods 9603, 9606, 9607, 9636: Z rotation of geocentric expressed in radians; For Methods 9603, 9618, 9619: unused; (Inherited from TGIS_CSTransformAbstract) |
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| Fallback | public | EPSG code of the fallback coordinate transformation used when the main grid-based transformation is unavailable. (Inherited from TGIS_CSTransformGridShift) |
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| FriendlyName | public | Friendly name constructed from the WKT name and EPSG code. (Inherited from TGIS_CSAbstract) |
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| G | public | For Methods 9603, 9606, 9607, 9636: scaled correction of geocentric relative to 1; For Methods 9603, 9618: unused; (Inherited from TGIS_CSTransformAbstract) |
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| GridShift | public | For methods 9613 and 9615: grid shift file path. (Inherited from TGIS_CSTransformAbstract) |
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| H | public | For Method 9636: X reference point in Cartesian system expressed in meters; For Methods 9603, 9606, 9607, 9618, 9619: unused; (Inherited from TGIS_CSTransformAbstract) |
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| I | public | For Method 9636: Y reference point in Cartesian system expressed in meters; For Methods 9603, 9606, 9607, 9618, 9619: unused; (Inherited from TGIS_CSTransformAbstract) |
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| J | public | For method 9636: Z reference point in Cartesian coordinates, expressed in meters; for methods 9603, 9606, 9607, 9618, and 9619: unused (Inherited from TGIS_CSTransformAbstract) |
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| MasterEPSG | public | EPSG code of the object for which the current object is an alias. (Inherited from TGIS_CSAbstract) |
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| Method | public | Method EPSG code. (Inherited from TGIS_CSTransformAbstract) |
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| Number | public | Serial number of transformation for current datum. (Inherited from TGIS_CSTransformAbstract) |
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| WKT | public | WKT name. (Inherited from TGIS_CSAbstract) |
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Remarks
PURPOSE: Provides high-accuracy regional datum transformation based on NADCON grid files published for North American surveying and mapping workflows.
BEHAVIOR: Specializes the generic grid-shift transformation for NADCON grid formats such as .los and .las. It interpolates latitude/longitude shifts from the loaded grids for points within covered regions.
CONSTRAINTS: Requires compatible NADCON grid files and is only applicable within the spatial coverage of those files.
2026/07/11 00:21