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Creation of geometries by Coordinate system methods using AutoCad

DDhanshree Koshti5 Jun 2022

AIM:

To create the geometries from p1 to p2 using all the coordinate system methods.

  • ABSOLUTE COORDINATE SYSTEM
  • RELATIVE COORDINATE SYSTEM
  • POLAR COORDINATE SYSTEM

INTRODUCTION:

Using the absolute coordinate system,relative coordinate system and polar coordinate system.

Click the AutoCad icon from desktop and go to the start>all programs>Autodesk>Autocad.

Click New icon to open a new drawing.

Set the limits and units.

Using line command and circle command.

PROCEDURE:

1.P-1

By using absolute coordinate system,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at 8,1 and press enter
  3. Specify the next point at 8,2 and press enter
  4. Specify the next point at4,2 and press enter
  5. Specify the next point at 3,2and press enter
  6. Specify the next point at 3,6 and press enter
  7. Specify the next point at 8,6 and press enter
  8. Specify the next point at 8,7 and press enter
  9. Specify the next point at 2,7 and press enter
  10. Specify the next point or close :select the close option and press enter

using POLAR COORDINATE SYSTEM,

Using RELATIVE COORDINATE SYSTEM

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @8,0 and press enter
  3. Specify the next point at @0,2 and press enter
  4. Specify the next point at@-6,0 and press enter
  5. Specify the next point at @0,6and press enter
  6. Specify the next point at @6,0 and press enter
  7. Specify the next point at@0,2 and press enter
  8. Specify the next point at @-8,0 and press enter
  9. Specify the next point or close :select the close option and press enter

2.P-2

By using absolute relative method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at 5,1 and press enter
  3. Specify the next point at 5,5 and press enter
  4. Specify the next point at 6,5 and press enter
  5. Specify the next point at 6,1and press enter
  6. Specify the next point at 9,1 and press enter
  7. Specify the next point at 7,8 and press enter
  8. Specify the next point at 4,8 and press enter
  9. Specify the next point at 2,1and press enter
  10. Specify the next point or close :select the close option and press enter

Then by using relative coordinate system,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @3,0 and press enter
  3. Specify the next point at @0,4 and press enter
  4. Specify the next point at @1,0 and press enter
  5. Specify the next point at @0,-4and press enter
  6. Specify the next point at @3,0 and press enter
  7. Specify the next point at @-2,7 and press enter
  8. Specify the next point at @-3.0 and press enter
  9. Specify the next point or close :select the close option and press enter

By using POLAR COORDINATE SYSTEM,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @7<45 and press enter
  3. Specify the next point at @3<0 and press enter
  4. Specify the next point at @7<225 and press enter
  5. Specify the next point at @3<180and press enter
  6. Specify the next point at @4<90 and press enter
  7. Specify the next point at @1<180 and press enter
  8. Specify the next point at @4<270and press enter
  9. Specify the next point or close :select the close option and press enter

3.P-4

By using absolute relative method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at 2,8 and press enter
  3. Specify the next point at 3,8 and press enter
  4. Specify the next point at5,-8 and press enter
  5. Specify the next point at 7,8and press enter
  6. Specify the next point at8,8 and press enter
  7. Specify the next point at 8,-8 and press enter
  8. Specify the next point at 7,1 and press enter
  9. Specify the next point at 7,5and press enter
  10. Specify the next point at 5,3 and press enter
  11. Specify the next point at 5,5 and press enter
  12. Specify the next point at 3,-5 and press enter
  13. Specify the next point or close :select the close option and press enter

By using RELATIVE COORDINATE method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @1,0 and press enter
  3. Specify the next point at @0,4 and press enter
  4. Specify the next point at@2,0 and press enter
  5. Specify the next point at @0,2and press enter
  6. Specify the next point at @0,-2 and press enter
  7. Specify the next point at @1,0 and press enter
  8. Specify the next point at @0,7 and press enter
  9. Specify the next point at @1,0 and press enter
  10. Specify the next point at @0,-2 and press enter
  11. Specify the next point at @0,3 and press enter
  12. Specify the next point at @0,7 and press enter
  13. Specify the next point or close :select the close option and press enter

Bu using POLAR COORDINATE SYSTEM,

4.P-5

By using absolute relative method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at 2,9 and press enter
  3. Specify the next point at 9,9 and press enter
  4. Specify the next point at5,-1 and press enter
  5. Specify the next point at 5,2 and press enter
  6. Specify the next point at 8,2 and press enter
  7. Specify the next point at 8,8 and press enter
  8. Specify the next point at -3,8 and press enter
  9. Specify the next point or close :select the close option and press enter

By using RELATIVE COORDINATE method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @1,0 and press enter
  3. Specify the next point at @0,4 and press enter
  4. Specify the next point at @2,0 and press enter
  5. Specify the next point at @0,2 and press enter
  6. Specify the next point at @0,-2 and press enter
  7. Specify the next point at @1,0 and press enter
  8. Specify the next point at @0,7 and press enter
  9. Specify the next point at @1,0 and press enter
  10. Specify the next point at @0,-2 and press enter
  11. Specify the next point at @0,3 and press enter
  12. Specify the next point at @0,7 and press enter
  13. Specify the next point or close :select the close option and press enter

By using POLAR COORDINATE method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @8<90 and press enter
  3. Specify the next point at @7<0 and press enter
  4. Specify the next point at @8<270 and press enter
  5. Specify the next point at @4<180 and press enter
  6. Specify the next point at @1<90 and press enter
  7. Specify the next point at @3<0 and press enter
  8. Specify the next point at @6<90 and press enter
  9. Specify the next point at @5<180 and press enter
  10. Specify the next point at @7<270 and press enter
  11. Specify the next point or close :select the close option and press enter

5.P-7

By using absolute relative method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at 2,6 and press enter
  3. Specify the next point at 2,10 and press enter
  4. Specify the next point at 10,10 and press enter
  5. Specify the next point at 10,2 and press enter,again enter the line specify first point 3,2 and press enter
  6. Specify the next point at 3,3 and press enter
  7. Specify the next point at 3,5 and press enter
  8. Specify the next point at 5,5 and press enter
  9. Specify the next point at 6,2
  10. Specify the next point at 6,3 and press enter
  11. Specify the next point at 6,8 and press enter
  12. Specify the next point at 8,1 and press enter
  13. Specify the next point or close :select the close option and press enter

By using RELATIVE COORDINATE method,

Enter the line command,

  1. Specify the first point 2,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @1,0 and press enter
  3. Specify the next point at @0,4 and press enter
  4. Specify the next point at @8,0 and press enter
  5. Specify the next point at @0,10 and press enter
  6. Specify the next point at @-8,0 and press enter
  7. Specify the next point at @3,1 and press enter
  8. Specify the next point at @0,3 and press enter
  9. Specify the next point at @2,0 and press enter
  10. Specify the next point at @0,2 and press enter
  11. Specify the next point at @6,1 and press enter
  12. Specify the next point at @0,3 and press enter
  13. Specify the next point at @2,0 and press enter
  14. Specify the next point at @0,2 and press enter
  15. Specify the next point or close :select the close option and press enter

By using POLAR COORDINATE method

6.P-8

By using absolute relative method,

Enter the line command,

  1. Specify the first point 0,0 at command prompt and press enter(as a starting point).
  2. Specify the next point at 10,0 and press enter
  3. Specify the next point at 10,2 and press enter
  4. Specify the next point at 10,10 and press enter
  5. Specify the next point at 2,6 and press enter
  6. Specify the next point at6,6 and press enter
  7. Specify the next point at 6,10 and press enter
  8. Specify the next point at 10,8 and press enter
  9. Specify the next point at 8,1 and press enter
  10. Specify the next point at 4,4 and press enter
  11. Specify the next point at 4,1 and press enter
  12. Specify the next point or close :select the close option and press enter

By using RELATIVE COORDINATE method,

Enter the line command,

  1. Specify the first point 0,0 at command prompt and press enter(as a starting point).
  2. Specify the next point at @10,0 and press enter
  3. Specify the next point at @0,2 and press enter
  4. Specify the next point at @-4,0 and press enter
  5. Specify the next point at @0,4 and press enter
  6. Specify the next point at @3,0 and press enter
  7. Specify the next point at @3,1 and press enter
  8. Specify the next point at @0,2 and press enter
  9. Specify the next point at @-8,0 and press enter
  10. Specify the next point at @0,-2 and press enter
  11. Specify the next point at @3,0 and press enter
  12. Specify the next point at @0,-4 and press enter
  13. Specify the next point at @4,0 and press enter
  14. Specify the next point or close :select the close option and press enter

By using POLAR COORDINATE method

7.P-9

By using absolute relative method,

Enter the line command,

  1. Specify the first point 1,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at 6,1 and press enter
  3. Specify the next point at 6,3 and press enter
  4. Specify the next point at 3,6 and press enter
  5. Specify the next point at 3,2 and press enter,
  6. Specify the next point at 2,4 and press enter
  7. Specify the next point at 5,4 and press enter
  8. Specify the next point at 5,6 and press enter
  9. Specify the next point at 6,8 and press enter
  10. Specify the next point at 8,1 and press enter
  11. Specify the next point or close :select the close option and press enter

By using RELATIVE COORDINATE method,

Enter the line command,

  1. Specify the first point 1,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @6,0 and press enter
  3. Specify the next point at @0,2 and press enter
  4. Specify the next point at @-3,0 and press enter
  5. Specify the next point at @0,1 and press enter
  6. Specify the next point at @-1,0 and press enter
  7. Specify the next point at @0,2 and press enter
  8. Specify the next point at @3,0 and press enter
  9. Specify the next point at @0,2 and press enter
  10. Specify the next point at @4,0 and press enter
  12. Specify the next point or close :select the close option and press enter

By using POLAR COORDINATE method

8.P-10

By using absolute relative method,

Enter the line command,

  1. Specify the first point 1,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at 1,8 and press enter
  3. Specify the next point at 6,8 and press enter
  4. Specify the next point at 6,4 and press enter
  5. Specify the next point at 3,4 and press enter,close option,again specify the first point 2,5 and press enter
  6. Specify the next point at 2,7 and press enter
  7. Specify the next point at 5,7 and press enter
  8. Specify the next point at 5,5 and press enter
  9. Specify the next point or close :select the close option and press enter

By using RELATIVE COORDINATE method,

Enter the line command,

  1. Specify the first point 1,1 at command prompt and press enter(as a starting point).
  2. Specify the next point at @2,0 and press enter
  3. Specify the next point at @0,3 and press enter
  4. Specify the next point at @3,0 and press enter
  5. Specify the next point at @0,4 and press enter
  6. Specify the next point at @-5,0 and press enter
  7. Specify the next point at close the current point,and start the line command specify the first point again and press enter
  8. Specify the next point at @0,2 and press enter
  9. Specify the next point at @3,0and press enter
  10. Specify the next point at @0,-2 and press enter
  11. Specify the next point or close :select the close option and press enter

By using POLAR COORDINATE method

9.Trusses using polar coordinate system

11.QUEEN POST TRUSS

12.MONO PITCH

RESULTS:

Completed all the trusses and the geometric fig. by using geometric coordinate system. From all 3 types of geometric coordinate systems, polar coordinate system is easy to use.

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