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Write computer-aided design algorithms to obtain the below drawings

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Here i'm going to show you some examples that how to write computer aided design (CAD) Algorithms:


1. Create the below shown drawing algorithm using Absolute coordinate values:


Absolute co-ordinate system



The algorithm is

PL
0,0
80,0
80,40
100,10
A
CE
110,10
120,10
L
120,80
A
CE
110,80
100,80
L
80,50
80,90
0,90
C
CIRCLE
40,45
20

Note: you can directly copy and paste the code in your AutoCAD command window, then the drawing will created.


2. Create the below shown drawing algorithm using Relative coordinate values:


Relative co-ordinate system

PL
0,0
@80,0
@0,40
@20,-30
A
CE
@10,0
@10,0
L
@0,70
A
CE
@-10,0
@-10,0
L
@-20,-30
@0,40
@-80,0
@0,-90

C
@40,45
20


3. Create the below shown drawing algorithm using Relative Polar coordinate values:


Relative polar coordinate system

The algorithm is:

PL
0,0
@80<0
@40<90
@20,-30
A
CE
@10<0
@10<0
L
@70<90
A
CE
@10<180
@10<180
L
@-20,-30
@40<90
@80<180
@90<270

C
@40,45
20

4. Create the below shown drawing algorithm using Absolute coordinate values:


Absolute co-ordinate system

The Algorithm is:


PL
10,10
25,10
25,15
45,15
45,10
60,10
60,35
40,35
35,28
30,35
10,35
c
C
30,20
D
4
POL
6
40,20
C
2

5. Create the below shown drawing algorithm using Relative coordinate values:


Relative coordinate system


L
10,10
@15,0
@0,5
@20,0
@0,-5
@15,0
@0,25
@-20,0
@-5,-7
@-5,7
@-20,0
C
C
30,20
D
4
POL
6
40,20
C
2

Create the below shown drawing algorithm using Relative Polar coordinate values:


Relative Polar coordinate system


PL
0,0
@70<0
@28.3<45
@50<90
@28.3<135
@70<180
@28.3<225
@50<270
c
C
30,30
10
POL
6
30,60
C
10

We can create continuous line with Arc's elements and line elements using PL (Poly Line) command.



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Comments

CAD tutor . net said…
Excellent examples shown for AutoCAD or Computer Aided Design algorithms. I really like this drawing algorithms and easy to understand all the CAD code. The way your explanation as step by step is very nice.

keep going brother...
Jul 5, 2021, 7:08:00 AM
autodesk.com said…
Really you did a great job. i liked your explanation and now i understand everything about the differences between co-ordinate systems used in AutoCAD software.
Jul 5, 2021, 7:12:00 AM
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