Valid values for tname are: layer, ltype, view, style, block, ucs, vport. Returns data stored in symbol table specified by tname. This information can be accessed using following functions. Information about layer, linetypes, views, text styles, and blocks is stored in symbol tables. Returns the name of num'th entity in the selection set- selset.Ĭonstructs a new selection with no members.Ĭonstructs a new selection set with ename as its member.Īdd entity ename to the selection set- selset.ĭeletes entity ename from the selection set- selset. Returns the number of entities in the selection set- selset. Will return a selection set containing all entities on layer "test".Ī complete list of group codes for filters is given inĪutoLisp Programmer's Reference, Pages 68-69. W (world), C (crossing), L (last), P (previous) Same as above using one of the valid mode values: Selects entities using standard Select Objects: prompt
Autocad lisp using entlast in a command update#
(entmod linedata) finally update databaseĮntity is updated and regenerated on screen following any modification after above function entmod is executed. Entity data can be modified using a function like subst, and then invoking this function- entmod.Įxample: If the line entity in above example were to be changed to another layer "test2", following sequence will be required: Argument elist to this function is an association list- the kind returned by the function entget.
Autocad lisp using entlast in a command code#
Data in the association list follow group code specification.Įxample: If a line is drawn on layer "test", starting from (1 1 0) to (2 3 0), then its entity data may look like the following:
![autocad lisp using entlast in a command autocad lisp using entlast in a command](https://cdn-deflf.nitrocdn.com/NHXjyfSvoYDqTekMdghVvzsGaSQqHOmI/assets/static/optimized/rev-df7c729/wp-content/uploads/2021/11/lisp-cad-in-nhanh-ban-ve.png)
Returns an association list of definition data for entity ename. If entity ename is currently in the drawing, it is deleted and undeleted if it has been deleted during the current editing session. Same as above but uses the value of prompt string for entity selection. Prompts the user for selecting an entity by a point pick, and returns a list containing selected entity name and coordinates of point used to select that entity.
![autocad lisp using entlast in a command autocad lisp using entlast in a command](https://autocadtips.files.wordpress.com/2012/01/replaceblock.jpg)
Returns the name of the last nondeleted entity in the database. Returns the name of the first nondeleted entity following ename in the database. Returns the name of the first nondeleted entity in the database. To access this database, AutoLisp provides two special data types, called entity names and selection sets.ĩ.2 Entity Access 9.2.1 Entity Name Functions Whenever you perform any operation- addition of a new entity, modification of an entity, or deletion of an entity, the drawing database is updated with new information. These functions are specific to AutoLisp and are not part of the standard LISP programming language.ĭrawing entities created as part of any AutoCad drawing are stored internally in a database of information. Additionally, some other functions provide direct access to input devices like keyboard, digitizer, and output devices like screen. Kapitel 9 AutoCad III: Zugriff auf geometrische Einheiten und die System UmgebungĪutoLisp provides a set of functions to access and modify graphic entities and their properties.