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#Autocad lisp rtos list how to#
#Autocad lisp rtos list full#

Use the LastPoint system variable with the getvar function, as in (getvar “lastpoint”).

Use the Id command with the command function, as in (command “ID”).

Browsing through the LISP Programming Language Reference, you learn you could: LISP provides several ways to get the coordinates of a picked point. Place the coordinates as text in the drawing. Obtain the coordinates from the drawing, probably by picking a point. Recognize that there are two parts to solving the problem: THE PLAN OF ATTACKīefore you write any LISP code, you need to figure out how you’re going to get those x,y,z-coordinates off the command prompt area and into the drawing. Wouldn’t it be great if you could change Id so that it places the coordinates in the drawing, next to the pick point? That would let you label x,y-coordinates and z-elevations over a site plan. : id Select a point to identify coordinates: (Pick a point.) X = 8.9227 Y = 6.5907 Z = 0.0000

Problem is, Id reports the value in the command prompt area, like this: When you pick a point on the screen, Id reports the 3D x,y,z- coordinates of the point. Here’s the example we’ll use for this tutorial: The Id CommandīricsCAD has the Id command. And you can use it for really simple but tedious tasks. The nice thing about LISP is that you can program it on the fly. Learning some LISP programming now means you’ll feel really good whipping off a few lines of code to let LISP perform tedious tasks for you. Sitting in the classroom sometimes seems like a waste of time.īut the things you learn now make life easier later. No doubt, you may be wondering, “Why bother learning a programming language?” In some ways, it’s like being back again in school.

#Autocad lisp rtos list how to#

If you are like many CAD users, you are busy creating drawings and you have no time to learn how to write software programs.

Overviewing LISP functions and external command functions.

The following topics are covered in this post:

#Autocad lisp rtos list full#

In this post, learn the first steps needed to write a LISP routine of your own.įor a full overview of LISP commands for BricsCAD, you can view the official, BricsCAD LISP Developer Guide. In this post, we look at the most powerful method available to “non-programmers” for customizing BricsCAD - the LISP programming language.