TGIS_Utils.GisIsCommonExtent method

DK for Delphi | GisUtils.TGIS_Utils.GisIsCommonExtent | Methods | Properties

Tests whether two 2D extents share a common area.

Available also on: .NET | Java | ActiveX | Python.

// Delphi
public
  class function GisIsCommonExtent(
    const _extent1 : TGIS_Extent;
    const _extent2 : TGIS_Extent
  ) : Boolean; static; inline;

// C++ Builder
public:
  static bool GisIsCommonExtent(
    TGIS_Extent* const _extent1,
    TGIS_Extent* const _extent2
  );

USAGE: Tests whether two 2D extents overlap. Use for spatial filtering and intersection detection.

viewport = TGIS_Utils.GisExtent(0.0, 0.0, 100.0, 100.0)
tile = TGIS_Utils.GisExtent(80.0, 80.0, 120.0, 120.0)
overlaps = TGIS_Utils.GisIsCommonExtent(viewport, tile)