Creation of geometries by Coordinate system methods using AutoCad

AIM: To Create the geometric from P1 to P2 using all the coordinate system methods.

Apparatus:

Autocad software

Coordinate systems:

1. Absolute coordinate
2. Relative coordinate
3. Relative polar coordinate
4. Direct distance entry

Procedure:

• Open autocad
• QNEW command
• As decimal units are used (metric is selected)
• Template = Acad.dwg
• Use a wizard
• Advance setup
• Units
• Decimal (precision 0.0)
• Angle
• Decimal degree
• Angle measure
• East
• Area= 12x12
• Units
• Decimal
• Metric

Problem 1:

1.Absolute coordinate system

• Line command
• 2,1 (point a)
• 8,1 (point b)
• 8,2 (point c)
• 3,2 (point d)
• 3,6 (point e)
• 8,6 (point f)
• 8,7 (point g)
• 2,7 (point h)
• Close

Result:

1. Relative rectangular co-ordinate system

• Line command
• 2,1 (start point) (1)
• @6,0 (dx= 6 units, dy=0 units) (2)
• @0,1 (dx= 0 units, dy=1 units) (3)
• @-5,0 (dx= -5 units, dy=0 units) (4)
• @0,4 (dx= 0units, dy=4 units) (5)
• @5,0 (dx= 5units, dy=0 units) (6)
• @0,1 (dx= 0units, dy=1 units) (7)
• @-6,0 (dx= -6units, dy=0 units) (8)
• close

Result :

1. Relative polar co-ordinate system

• Line command
• 2,1 (start point) (1)
• @6 <0⁰ (dx= 6 units, dy =0 degree) (2)
• @1<90⁰ (dx= 1 units, dy = 90degree) (3)
• @5<180⁰ (dx= 5 units, dy = 180degree) (4)
• @4<90⁰ (dx= 4 units, dy = 90degree) (5)
• @5<0⁰ (dx= 5 units, dy = 0degree) (6)
• @1<90⁰ (dx= 1 units, dy = 90degree) (7)
• @6<180⁰ (dx= 6 units, dy = 180degree) (8)
• Close

Result :

1. Direct distance method:

• line command
• 6(curser facing east)
• 1(curser facing upwards)
• 5(curser facing west)
• 4(curser facing upwards)
• 5 (curser facing east)
• 1(curser facing upwards)
• 6(curser facing west)
• 6(curser facing down wards)
• close

Result :

Problem 2:

1.Absolute coordinate system

• Line command
• 2,1 (point a)
• 5,1 (point b)
• 5,5 (point c)
• 6,5 (point d)
• 6,1 (point e)
• 9,1 (point f)
• 7,8 (point g)
• 4,8 (point h)
• close

Result:

1. Relative rectangular co-ordinate system

• Line command
• 2,1 (start point) (A)
• @3,0 (dx= 3 units, dy=0 units) (B)
• @0,4 (dx= 0 units, dy=4 units) (C)
• @1,0 (dx= 1 units, dy=0 units) (D)
• @0,-4 (dx= 0 units, dy=-4 units) (E)
• @3,0(dx= 3units, dy=0 units) (F)
• @-2,7 (dx= -2units, dy=7 units) (G)
• @-3,0 (dx= -3units, dy=0 units) (H)
• close

RESULT:

1. Relative polar co-ordinate system

• Line command
• 2,1 (start point) (1)
• @3 <0⁰ (2)
• @4<90⁰ (3)
• @1<90⁰(4)
• @4<270⁰ (5)
• @3<0⁰ (6)
• @7<90⁰ (line 1)
• @2<180⁰ (line 2)
• Join both the lines line 1 and line 2 and joint the staring point of 6 and end point of line 2.Now delete the line 1 and line 2
• @3<180 (from 7point)
• Close

Result :

1. Direct distance method:

• line command
• 3(curser facing east)
• 4(curser facing upwards)
• 1(curser facing east)
• 4(curser facing down wards)
• 3 (curser facing east)
• 7(curser facing upwards) (line 1)
• 2 (curser facing west) (line 2)
• Join the line f and the end point of line 2
• Delete the line 1 and line 2
• 3(curser facing west)
• Close

Result:

Problem 3:

Relative rectangular co-ordinate system

• Line command
• 2,1 (start point) (a)
• @1,0 (dx= 1 units, dy=0 units) (b)
• @0,4 (dx= 0 units, dy=4 units) (c)
• @2, -2 (dx= 2 units, dy= -2units) (d)
• @2, 2 (dx= 2 units, dy= 2 units) (e)
• @0,-4 (dx= 0units, dy=-4 units) (f)
• @1,0 (dx= 1units, dy=0 units) (g
• @0,7 (dx= 0units, dy=7 units) (h)
• @-1,0 (dx= -1units, dy=0 units) (i)
• @-2, -3 (dx= -2units, dy=-3 units) (j)
• @-2,3 (dx= -2units, dy=3 units) (k)
• @-1,0 (dx= -1units, dy=0 units) (l)
• Close

Result:

Problem 4:

Relative rectangular co-ordinate system

• Line command
• 2,1 (start point) (a)
• @1,0 (dx= 1 units, dy=0 units) (b)
• @0,7 (dx= 0 units, dy=7 units) (c)
• @5,0 (dx= 5 units, dy= 0units) (d)
• @0, -6 (dx= 0 units, dy= -6units) (e)
• @ -3,0 (dx= -3units, dy=0 units) (f)
• @0, -1 (dx= 0units, dy=-1 units) (g
• @4,0 (dx= 4units, dy= 0 units) (h)
• @0,8 (dx= 0units, dy= 8 units) (i)
• @ -7,0(dx= -7units, dy= 0 units) (j)
• Close

Result:

Problem 5:

Relative rectangular co-ordinate system

• Line command
• 2,1 (start point) (a)
• @8,0 (dx= 1 units, dy=0 units) (b)
• @0,6 (dx= 0 units, dy=7 units) (c)
• @-8,0 (dx= 5 units, dy= 0units) (d)
• Close
• Line command
• 3, 2 (start point) (e)
• @ 2,0 (dx= -3units, dy=0 units) (f)
• @0, 3 (dx= 0units, dy=-1 units) (g
• @-2,0 (dx= 4units, dy= 0 units) (h)
• Line command
• 6,2 (start point) (i)
• @ 2,0(dx= -7units, dy= 0 units) (j)
• @ 0,3(dx= -7units, dy= 0 units) (k)
• @ -2,0(dx= -7units, dy= 0 units) (l)
• Close

Result:

Problem 6:

Relative rectangular co-ordinate system

• Line command
• 0,0 (start point) (a)
• @10,0 (dx= 10 units, dy=0 units) (b)
• @0,2 (dx= 0 units, dy= 2units) (c)
• @-4,0 (dx= -4 units, dy= 0units) (d)
• @0,4 (dx= 0 units, dy= 4 units) (e)
• @ 3,0 (dx= 3units, dy=0 units) (f)
• @0,2 (dx= 0units, dy= 2 units) (g
• @-8,0 (dx= -8units, dy= 0 units) (h)
• @0,-2 (dx= 0units, dy= -2 units) (i)
• @3,0(dx= 3units, dy= 0 units) (j)
• @0,-4(dx= 0units, dy= -4 units) (k)
• @-4,0(dx= -4 units, dy= 0 units) (l)
• Close

Result:

Problem 7:

Relative rectangular co-ordinate system

• Line command
• 1,1 (start point) (a)
• @5,0 (dx= 5 units, dy=0 units) (b)
• @0,2 (dx= 0 units, dy= 2units) (c)
• @-3,0 (dx= -3 units, dy= 0units) (d)
• @0,-1 (dx= 0 units, dy= -1units) (e)
• @ -1,0 (dx= -1units, dy=0 units) (f)
• @0,2 (dx= 0units, dy= 2 units) (g
• @-8,0 (dx= -8units, dy= 0 units) (h)
• @0,-2 (dx= 0units, dy= -2 units) (i)
• @3,0(dx= 3units, dy= 0 units) (j)
• @0,2(dx= 0units, dy= 2 units) (k)
• @-4,2(dx= -4 units, dy= 2 units) (l)
• Close

Result:

Problem 8:

Relative rectangular co-ordinate system

• Line command
• 1,1 (start point) (a)
• @2,0 (dx= 2 units, dy=0 units) (b)
• @0,3 (dx= 0 units, dy= 3units) (c)
• @3,0 (dx= 3 units, dy= 0units) (d)
• @0,4 (dx= 0 units, dy= 4units) (e)
• @ -5,0 (dx= -5units, dy=0 units) (f)
• Line command
• 2,5 (start point) (g)
• @3,0 (dx= 3units, dy= 0 units) (h)
• @0,2 (dx= 0units, dy= 2 units) (i)
• @-3,0(dx= -3units, dy= 0 units) (j)
• Close

Result:

Problem 9:

Relative rectangular co-ordinate system

• Line command
• 0,0 (start point) (a)
• @10,0 (dx= 10 units, dy=0 units) (b)
• @0,1 (dx= 0 units, dy= 1units) (c)
• @-2,0 (dx= -2 units, dy= 0units) (d)
• @0,4 (dx= 0 units, dy= 4units) (e)
• @2,0 (dx= 2units, dy=0 units) (f)
• @0,1 (dx= 0units, dy=1 units) (f)
• @-5,3 (dx= -5units, dy=3units) (f)
• @-5,-3 (dx= -5units, dy=-3 units) (f)
• @2,0 (dx= 2units, dy=0 units) (f)
• @0,-5 (dx= 0units, dy=-5 units) (f)
• @-2,0 (dx= -2units, dy=0 units) (f)
• close
• line command
• mark 5,4 start point
• take circle, radius command
• draw a circle of radius 2.

Result:

Problem 10:

Relative rectangular co-ordinate system

• Line command
• 1,1 (start point) (a)
• @0,4 (dx= 0 units, dy=4 units) (b)
• @7.072,0 (dx= 7.072 units, dy= 0units) (c)
• @0, -4 (dx= 0units, dy= -4units) (d)
• Close
• Line command
• 536,5 start point (e)
• @0,3.536(dx= 0units, dy=3.536 units) (f)
• @-3.536, -4 (dx= -3.536units, dy=-4 units) (b)
• Close
• Line command
• 2,5 start point (g)
• @0,1 (dx= 0units, dy=1units) (h)
• @2.536, -1 (dx= 2.536units, dy=-1 units) (e)
• Close
• Line command
• Join point c and f
• 072,5 start point (i)
• @0,1 (dx= 0units, dy=1 units) (j)
• @-2.536,-1 (dx= -2.536units, dy= -1units) (e)
• close

Result:

Problem 11:

Relative rectangular co-ordinate system

• Line command
• 1,1 (start point) (a)
• @6,0 (dx= 6 units, dy= 0units) (b)
• @0,2 (dx= 0units, dy= 2units) (c)
• @-6, -2 (dx= -6units, dy= -2units) (b)
• Close
• Line command
• 3,1start point (d)
• @0,0.667 (dx= 0units, dy=0.667units) (e)
• @2, -0.667 (dx= 2units, dy=-0.667 units) (f)
• @0,1.333 (dx= 0units, dy=-1.333 units) (g)
• @2, -1.333 (dx= 2units, dy=-1.333units) (b)
• Close7867

Result: