BACK BOTTOM clipt computeMaxBorderCode computeRegionCode FRONT INSIDE LEFT liangBarskyClip point_force2d RIGHT tgeo_at_geom tgeo_at_stbox tgeo_at_value tgeo_minus_geom tgeo_minus_stbox tgeo_minus_value tgeo_restrict_geom tgeo_restrict_stbox tgeo_value_at_timestamptz tgeoinst_restrict_geom tgeoinst_restrict_geom_iter tgeoinst_restrict_stbox tgeoinst_restrict_stbox_iter tgeoseq_disc_restrict_geom tgeoseq_disc_restrict_stbox tgeoseq_restrict_geom tgeoseq_restrict_stbox tgeoseq_step_restrict_geom tgeoseq_step_restrict_stbox tgeoseqset_restrict_geom tgeoseqset_restrict_stbox TOP tpoint_at_geom tpoint_at_stbox_segm tpoint_at_value tpoint_force2d tpoint_minus_geom tpoint_minus_value tpointinst_restrict_geom_iter tpointinst_restrict_stbox_iter tpointsegm_timestamp_at_value1_iter tpointseq_at_stbox_segm tpointseq_interperiods tpointseq_linear_at_geom tpointseq_linear_at_stbox_xyz tpointseq_linear_restrict_geom tpointseq_linear_restrict_stbox tpointseq_timestamp_at_value tpointseqset_at_stbox_segm XMAX YMAX ZMAX

liangBarskyClip() static bool liangBarskyClip ( const GSERIALIZED *  point1, const GSERIALIZED *  point2, const STBox *  box, bool  hasz, bool  border_inc, GSERIALIZED **  point3, GSERIALIZED **  point4, bool *  p3_inc, bool *  p4_inc  ) static Clip a line segment using the Liang-Barsky algorithm. Parameters [in] point1,point2 Input points [in] box Bounding box [in] hasz Has Z dimension? [in] border_inc True when the box contains the upper border, otherwise the upper border is assumed as outside of the box. [out] point3,point4 Output points [out] p3_inc,p4_inc Are the points included or not in the box? These are only written/returned when border_inc is false Returns True if the line segment defined by p1,p2 intersects the bounding box, false otherwise. Note It is possible to mix 2D/3D geometries, the Z dimension is only considered if both the temporal point and the box have Z dimension See also The Liang-Barsky algorithm is explained in https://www.researchgate.net/publication/255657434_Some_Improvements_to_a_Parametric_Line_Clipping_Algorithm