api:dk11:net:tatukgis.ndk.tgis_csprojcassini
Table of Contents
TGIS_CSProjCassini class
DK for .NET | TatukGIS.NDK.TGIS_CSProjCassini | Classes | Constructors | Fields | Methods | Properties
Cassini-Soldner transverse cylindrical projection for regional mapping.
Syntax
// C# public class TGIS_CSProjCassini : TGIS_CSProjAbstract { }
' VisualBasic Public Class TGIS_CSProjCassini Inherits TGIS_CSProjAbstract End Class
// Oxygene type TGIS_CSProjCassini = public class( TGIS_CSProjAbstract ) end;
Inheritance
→ TGIS_Object → TGIS_CSAbstract → TGIS_CSProjAbstract
Constructors
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| TGIS_CSProjCassini() | public | Creates an instance of the projection object with WGS84 datum and initializes projection parameters from EPSG code or WKT string. (Overrides TGIS_CSProjAbstract.TGIS_CSProjAbstract()) |
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Fields
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| FDatum | protected | Property internal storage for datum reference. (Inherited from TGIS_CSProjAbstract) |
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| FDescription | protected | Property internal storage for projection description. (Inherited from TGIS_CSProjAbstract) |
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| FEllipsoid | protected | Property internal storage for ellipsoid reference. (Inherited from TGIS_CSProjAbstract) |
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| FError | protected | Property internal storage for error state. (Inherited from TGIS_CSProjAbstract) |
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| FIsEllipsoid | protected | Property internal storage: ellipsoid flag. (Inherited from TGIS_CSProjAbstract) |
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| FIsGrid | protected | Property internal storage: grid projection flag. (Inherited from TGIS_CSProjAbstract) |
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| FIsPureCylindrical | protected | Property internal storage: pure cylindrical flag. (Inherited from TGIS_CSProjAbstract) |
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| FIsRevertible | protected | Property internal storage: reversible flag. (Inherited from TGIS_CSProjAbstract) |
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| FIsSpheroid | protected | Property internal storage: spheroid flag. (Inherited from TGIS_CSProjAbstract) |
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| FIsXYZ | protected | Property internal storage: 3D coordinate flag. (Inherited from TGIS_CSProjAbstract) |
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| FParameters | protected | Property internal storage. (Inherited from TGIS_CSProjAbstract) |
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| FParametersSet | protected | Property internal storage for supported parameters set. (Inherited from TGIS_CSProjAbstract) |
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| FSubtype | protected | Property internal storage for projection subtype. (Inherited from TGIS_CSProjAbstract) |
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| FValidityExtentWGS | protected | Property internal storage for WGS84 validity extent. (Inherited from TGIS_CSProjAbstract) |
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| FValidityOriginWGS | protected | Property internal storage for WGS84 validity origin point. (Inherited from TGIS_CSProjAbstract) |
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Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Assign | public | Copies the shared definition fields from another object. (Inherited from TGIS_CSAbstract) |
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| CreateCopy | public | Creates a deep copy of this projection instance with all parameters and settings duplicated. (Overrides TGIS_CSProjAbstract.CreateCopy) |
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| datumChanged | protected | Procedure will be called upon any datum change. (Overrides TGIS_CSProjAbstract.datumChanged) |
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| MarkDeprecated | public | Marks this coordinate system definition as deprecated or current. (Inherited from TGIS_CSAbstract) |
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| Project | public | Transforms a single geodetic longitude/latitude point to projected easting/northing coordinates. (Inherited from TGIS_CSProjAbstract) |
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| Project3D | public | Transforms a single geodetic longitude/latitude/elevation point to projected coordinates. (Inherited from TGIS_CSProjAbstract) |
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| Project3D_Ref | public | Transform geodetic (latitude/longitude/elevation) coordinates to projected (easting/northing/elevation) in-place using current ellipsoid and projection parameters. (Overrides TGIS_CSProjAbstract.Project3D_Ref) |
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| projectPost | protected | Finalizes coordinates after projection-specific code runs. (Inherited from TGIS_CSProjAbstract) |
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| projectPre | protected | Prepares coordinates for projection before projection-specific code runs. (Inherited from TGIS_CSProjAbstract) |
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| set_Validity(double, double, double, double) | protected | Sets the validity extent for the projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| set_Validity(double, double, double, double, double, double) | protected | Sets the validity extent for the projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| set_Validity(double, double, double, double, double, double, double, double) | protected | Sets the validity extent for the projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| ToString | public | (Inherited from TGIS_CSAbstract) |
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| Unproject | public | Reverse-transforms a single projected easting/northing point to geodetic longitude/latitude coordinates. (Inherited from TGIS_CSProjAbstract) |
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| Unproject3D | public | Reverse-transforms a single projected easting/northing/elevation point to geodetic coordinates. (Inherited from TGIS_CSProjAbstract) |
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| Unproject3D_Ref | public | Reverse-transform projected (easting/northing/elevation) coordinates back to geodetic (latitude/longitude/elevation) in-place using current ellipsoid and projection parameters. (Overrides TGIS_CSProjAbstract.Unproject3D_Ref) |
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| unprojectPost | protected | Finalizes coordinates after inverse projection-specific code runs. (Inherited from TGIS_CSProjAbstract) |
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| unprojectPre | protected | Prepares coordinates for inverse projection before projection-specific code runs. (Inherited from TGIS_CSProjAbstract) |
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Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Azimuth | public | Azimuth angle from north (for oblique projections). (Inherited from TGIS_CSProjAbstract) |
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| CentralMeridian | public | Central Meridian (longitude of origin) for this projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| Custom1 | public | Custom parameter value 1 (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom1Name | public | Custom parameter 1 name/label (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom2 | public | Custom parameter value 2 (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom2Name | public | Custom parameter 2 name/label (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom3 | public | Custom parameter value 3 (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom3Name | public | Custom parameter 3 name/label (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom4 | public | Custom parameter value 4 (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom4Name | public | Custom parameter 4 name/label (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom5 | public | Custom parameter value 5 (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom5Name | public | Custom parameter 5 name/label (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom6 | public | Custom parameter value 6 (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Custom6Name | public | Custom parameter 6 name/label (projection-specific). (Inherited from TGIS_CSProjAbstract) |
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| Datum | public | Geodetic datum used by this projection, defining the ellipsoid model and coordinate reference frame. (Inherited from TGIS_CSProjAbstract) |
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| Deprecated | public | Indicates whether this definition is deprecated. (Inherited from TGIS_CSAbstract) |
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| Description | public | Additional textual description for this projection, if available. (Inherited from TGIS_CSProjAbstract) |
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| DescriptionEx | public | Descriptive name; for internal use of TGIS_CSAbstractListHelper. (Inherited from TGIS_CSAbstract) |
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| Ellipsoid | public | The ellipsoid (Earth model) currently in use by this projection. (Inherited from TGIS_CSProjAbstract) |
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| EPSG | public | EPSG code. (Inherited from TGIS_CSAbstract) |
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| Error | public | Projection error code from the last transformation attempt. (Inherited from TGIS_CSProjAbstract) |
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| FalseEasting | public | False Easting (X coordinate offset) in meters. (Inherited from TGIS_CSProjAbstract) |
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| FalseNorthing | public | False Northing (Y coordinate offset) in meters. (Inherited from TGIS_CSProjAbstract) |
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| FriendlyName | public | Friendly name constructed from the WKT name and EPSG code. (Inherited from TGIS_CSAbstract) |
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| IsEllipsoid | public | Indicates whether the projection uses ellipsoidal formulas. (Inherited from TGIS_CSProjAbstract) |
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| IsGrid | public | Indicates whether this projection is grid-based and uses only shift and scale style transformations. (Inherited from TGIS_CSProjAbstract) |
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| IsPureCylindrical | public | Indicates whether the projection's graticule (coordinate grid) is purely cylindrical with parallel meridians and parallels. (Inherited from TGIS_CSProjAbstract) |
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| IsRevertible | public | Indicates whether this projection can be reversed (inverse transformation from projected to geodetic coordinates supported). (Inherited from TGIS_CSProjAbstract) |
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| IsSpheroid | public | Indicates whether the projection uses spheroidal formulas. (Inherited from TGIS_CSProjAbstract) |
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| IsStandard | public | Indicates whether this projection is standard (not grid, not XYZ, and revertible). (Inherited from TGIS_CSProjAbstract) |
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| IsXYZ | public | Indicates whether this projection is XYZ-based and uses 3D Cartesian coordinates. (Inherited from TGIS_CSProjAbstract) |
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| LatitudeOfCenter | public | Latitude of center for this projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| LatitudeOfOrigin | public | Latitude of origin for this projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| LatitudeOfPoint_1 | public | Latitude of first control point (for two-point projections). (Inherited from TGIS_CSProjAbstract) |
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| LatitudeOfPoint_2 | public | Latitude of second control point (for two-point projections). (Inherited from TGIS_CSProjAbstract) |
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| LongitudeOfCenter | public | Longitude of center for this projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| LongitudeOfPoint_1 | public | Longitude of first control point (for two-point projections). (Inherited from TGIS_CSProjAbstract) |
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| LongitudeOfPoint_2 | public | Longitude of second control point (for two-point projections). (Inherited from TGIS_CSProjAbstract) |
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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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| Parameters | public | Gets or sets all projection parameter values as a single record. (Inherited from TGIS_CSProjAbstract) |
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| ParametersSet | public | Set of projection parameters supported by this projection. (Inherited from TGIS_CSProjAbstract) |
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| PseudoStandardParallel_1 | public | Pseudo standard parallel for this projection in radians. (Inherited from TGIS_CSProjAbstract) |
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| ScaleFactor | public | Scale factor (uniform scale ratio) for this projection. (Inherited from TGIS_CSProjAbstract) |
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| StandardParallel_1 | public | First Standard parallel. (Inherited from TGIS_CSProjAbstract) |
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| StandardParallel_2 | public | Second Standard parallel. (Inherited from TGIS_CSProjAbstract) |
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| ValidityExtentWGS | public | Validity extent for this projection in WGS84 geographic coordinates, expressed in radians. (Inherited from TGIS_CSProjAbstract) |
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| ValidityOriginWGS | public | Origin point of the validity extent for this projection in WGS84 geographic coordinates, expressed in radians. (Inherited from TGIS_CSProjAbstract) |
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| WKT | public | WKT name. (Inherited from TGIS_CSAbstract) |
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| XScale | public | X Scale (width) factor for affine transformation. (Inherited from TGIS_CSProjAbstract) |
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| XYPlaneRotation | public | Plane rotation angle for affine transformation. (Inherited from TGIS_CSProjAbstract) |
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| YScale | public | Y Scale (height) factor for affine transformation. (Inherited from TGIS_CSProjAbstract) |
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| Zone | public | Zone number for UTM (Universal Transverse Mercator) projection. (Inherited from TGIS_CSProjAbstract) |
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Remarks
PURPOSE: Support local and national survey mapping near a central meridian with low distortion in that vicinity.
BEHAVIOR: Uses the Cassini-Soldner projection with a straight central meridian and increasing distortion farther from it. It is mainly intended for regional rather than world-scale mapping.
USAGE: Set the origin latitude and central meridian for the survey area.
proj = TGIS_CSProjCassini(0, '') proj.LatitudeOfOrigin = lat
CONSTRAINTS: Supports CentralMeridian, LatitudeOfOrigin, FalseEasting, and FalseNorthing.
2026/07/11 00:54