jukasce.blogg.se - Autocad lisp using entlast in a command

To be selected, the entity need not be on the screen or on a thawed layer. (entlast) The entlast function is frequently used to obtain the name of a new entity that has just been added with the command function. Estimated time for completion: 5 minutes. Returns the name of the last nondeleted main object (entity) in the drawing.

Set variable e1to the name of the last entity added to the drawing: (setq e1 (entlast)).

Try the following statements at the Command line, first using the (setq) command to specify several points, and then executing AutoCAD commands through AutoLISP. The entlastfunction is frequently used to obtain the name of a new entity that has just been added with the commandfunction. ( command “pline” POINT1 “w” STARTING_WIDTH ENDING_WIDTH POINT2 “”)Ĭommand: pline Specify start point: 2,2 Current line-width is 0.0000 Specify next point or : w VLISP Displays the Visual LISP interactive development environment (IDE). If not already open, open the BLADE editor: type BLADE at the : Enter command prompt. We will create 7 or 8 versions of the program, with each version introducing a new function and concept. Get up to date CAD Tutorials, Tech Reviews and News. Now that we have a feel for LISP and using the BLADE editor let’s start a new program. ( setq STARTING_WIDTH 0.1 ENDING_WIDTH 0.1 POINT1 “2,2” POINT2 “4,4” ) A list of Autocad commands in post form as well as downloadable pdf.

The (command) function always returns nil.Ĭommand: line Specify first point: 0,0 Specify next point or : 1,5 Specify next point or : Command: nilĬommand: circle Specify center point for circle or : Specify radius of circle or : 2 Command: nil

The (command) function with no arguments is equivalent to canceling the active command. In the macro section, ESurvey Lisps offers macros for the majority of frequently used commands. ESurvey Lisps feature over 50 macros that have been included after extensive research which suit while working with survey drawings.

The null string “” is the equivalent of hitting the spacebar or key in AutoCAD. While working with AutoCAD if you wish to save drawing editing time, it is better to use command prompt commands instead of Icons.

Use the predefined symbol PAUSE to wait for user input.

( setq RADIUS 1.25) ( command “circle” “4,4” RADIUS) Where applicable, you can see country-specific product information, offers, and pricing.

You can include any AutoLISP symbol or expression that evaluates to an appropriate value. Learn AutoCAD hotkeys and commands with the AutoCAD Shortcut Keyboard guide to help you work faster and be more efficient while using AutoCAD software.

AutoCAD commands and options are typed in as strings.

It is followed by the command’s options input in the same order they would be typed at the AutoCAD “Command:” prompt. The first argument to the (command) function is always the command name. Rather than have an entirely new set of drawing and editing commands, AutoLISP permits the user to tap all of AutoCAD’s existing commands from within AutoLISP using the (command) function.