Arguments

layerId  (integer)  'handle' identifier of the 'GIS Layer' to remove the 'GIS Attribute' from
name  (string) the name of the 'GIS Attribute' to be removed (case-insensitive)

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 attributes (gis:layer-get-attributes layerId))  ("id" "name" "int_number" "dec_number" "date")
(gis:layer-has-attribute layerId "NewId")  NIL

(gis:layer-add-attribute layerId (list "NewId" 3 "---empty---"))  T

(setq attributes (gis:layer-get-attributes layerId))  ("id" "name" "int_number" "dec_number" "date" "NewId")
(gis:layer-has-attribute layerId "NewId")  T

(gis:layer-remove-attribute layerId "newid")  T
(gis:layer-has-attribute layerId "NewId")  NIL

Remarks

a 'GIS Feature Attribute' represents a "Column" in the GIS Database table; each 'GIS Feature' (built-up from dwg entities) is a row in such table;
the 'GIS Feature Attribute' name string is always handled as case-insensitive !