TGIS_CSProjCassini.Create constructor

DK for Delphi | GisCsProjections.TGIS_CSProjCassini.Create | Constructors | Fields | Methods | Properties

Creates an instance of the projection object with WGS84 datum and initializes projection parameters from EPSG code or WKT string.

Available also on: .NET | Java | Python.

Overrides TGIS_CSProjAbstract.Create.

// Delphi
public
  constructor Create(
    const _epsg : Integer;
    const _wkt : String
  ); override;

// C++ Builder
Create (
  const int _epsg,
  const UnicodeString _wkt
);

PURPOSE: Initialize projection instance with standard datum (WGS84) and coordinate system definition from EPSG or WKT sources.

BEHAVIOR: Sets Datum=WGS84 by default. If _epsg is provided, loads projection parameters from EPSG database. Otherwise parses WKT string to extract projection type and parameters. Validation errors stored in Error property.

USAGE: Direct instantiation is via subclasses. Framework typically creates instances via factory: TGIS_CSFactory.Create(epsg) returns correctly typed projection.

CONSTRAINTS: WGS84 is hardcoded default; use Datum property to change. EPSG lookup requires loaded EPSG database. Invalid EPSG codes or WKT fail gracefully, setting Error property.