AutoLISP Programming Tutorial - 1A Video Lecture | A complete Guide to AutoCAD (English) - Design Softwares

so in this Otto Lee's first lecture we
plan to complete this topics so step by
step we'll be covering
structure of water lips just statement
what is variable setting variable values
using set cue function rules for with
variable naming that means how you can
name a variable what are the rules for
that then leaving variable values on
AutoCAD command line so if you set of
variable how to view that value within
AutoCAD command prompt using variables
in AutoCAD commands then whatever
variables we have created how we can use
those variables in AutoCAD commands then
we will be covering the different types
of or two lips data type what are the
types of data used in order loops and we
will also covering the basic arithmetic
functions so this is our first lecture
so we will start the structure of auto
lips statement so you always have to
remember that the auto leave state means
start with lip parenthesis so there are
always in your tool if statement will
start with length by a parenthesis and
after left parenthesis comes the
function so what activity you want to do
that needs to be put after the function
suppose suppose we take the example of
setting the variable values using set Q
function so if you want to use the set Q
function so we will write here set Q so
that is the name of the function after
that you have to give the space and the
arguments required by that particular
function so basically set Q function
requires the name of the variable that
will be used to store the value so
suppose we take a variable name as
number so I give variable name as a no
so variable name should be in alphabet
you can make a variable name of
alphanumerical variable name you can
give so it should be a meaningful name
so that you can understand for what
purpose you have created that variable
so suppose so
what lease function we'll start with
left parenthesis then you have to give
name of the function so in this case we
are given set Q then space then give the
name of the variable and after that what
value you want to store to that variable
suppose I want to store Phi you into
that variable so I will give I you and
you have to close the auto lips function
with closing bracket so this we can say
that the structural bottle songs any
Auto Leafs statement I can
we'll start with red parenthesis then
give the name of the function then give
the argument so in this case in the case
of set Q arguments are a no variable
name and the value and absol that you
have to press the enter so here the
value is written Phi value is written so
in this way you can set a value to a
variable so if I want to check what
value has been stored in number variable
for that how to use Excel a metal sign
and give the name of the variable so I
have given n oh so enter so I can see
that the name of the Varia the content
of n o variable is for you so this a no
variable you can used in your commands
also in your AutoCAD commands to suppose
I want to create a circle of radius for
you so I know that the content of I know
is for you so here I will give the name
of the color I will give the command
circle so he is asking me for the center
point then he is asking me for the
radius so in the place of giving fire I
will put the accelerometry sign and name
of the variable that is i know and enter
so it has created a circle of radius for
you so in this way you can use the
variables within AutoCAD commands also
so that is the structure