gis:layer-has-feature


(gis:layer-has-feature  layerId  featureId)

Returns whether the 'GIS Feature' specified by featureId is contained in the 'GIS Layer' object specified by layerId.

Arguments

layerId  (integer)  'handle' identifier of the 'GIS Layer' to be queried
featureId  (integer)  the 'GIS Feature' id to be verified

Return

T on success, or NIL

Example

(vl-load-gis)  T
(setq layers (gis:get-layers))  ("shp_3857_point_2d_utf8")
(setq name (car layers))  "shp_3857_point_2d_utf8"
(setq layerId (gis:get-layer name))  1736947670764
(setq features (gis:layer-get-features layerId))  (1685094904232 1685094904233)
(gis:layer-has-feature layerId (car features))  T

Remarks



©  Bricsys NV. All rights reserved.