Aim:
- To Create the geometries from P1 to P2 using all the coordinates system methods.ans to use the Line tool to create the geometries, to use the circle tool where it is required.
Introduction:
- AutoCAD was derived from a program that began in 1977, and then released in 1979 called InterCAd, also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then marinchip software partners) formation by Autodesk cofounder Michael Riddle. The first version by Autodesk was demonstrated at the 1982 Comdex and released that Decmber. AutodCAD supported CP/M-80 computers. As Autodesk's foagship product, be March 1986 AutoCAD had become the most ubiquitous CAD program worldwide
- The fundamenta purpose of AutoCAD is to creat lines, arcs, circle and other geometric shapes that are necessary for the drawing that are free from errrors.
- Different Coordinate systems used are:
I. Absolute coordinate system - All the point are taken with respect to origin.
II. Relative coordinate system - The points are taken with respect to the last point.
a. Relative rectangular coordinate system
b. Relative polar coordinate system
III. Direct distance entry
Procedure:
- Click on AutoCAD application and open this application
- Initially set the template Imperial ( Feet and inches)and Units(Decimal)
- Type startup in teh command line and then insert the values 1.
- Then go to application menu -->select new-->creat drawing, to start form scratc.
- Select defaultf setting as Imperial (feet and inches)
- In default setting click on use a wizard and in that advancef setting and unit as decimal and precision as 0
- Set Angle as Decimal Degree and precision as 0 and click next
- Set Angle Measure as EAST and Next
- Set Angle Direction as Counter-Clockwise and click Next
- Set Area by provideing Lenghtf as 10 and Width as 10
- finished
- To draw a line: always follw the command while drawing a line.
- Ribbon-->Home-->Draw panel-->Line.
- Menu bar-->Draw-->Line.
- Coomand-->Enter line or 'L'
QUESTION-1, Picture-1

Drawing a line using different coordinates:
-P1 Absolute coordinate system: Here, all the points are taken with respect to origin.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1)
- Line specify the next point: (8,1)
- Line specify the next point: (8,2)
- Line specify the next point: (3,2)
- Line specify the next point: (3,6)
- Line specify the next point: (8,6)
- Line specify the next point: (8,7)
- Line specify the next point: (2,7)
- Line specify the next point: Type 'C' for close or (point 2,1 )
- The Geometry is done.
RESULT:

- Relative coordinate system:
- P1 Relative rectangular coordinate system: Here using the symbol @ shift the coordinates(origin) from (0,0) to previous last point have to move to left or downwards we have to use negative sign in x and y axis respectively.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1) (starting point)
- Line specify the next point: @6,0 (DX=6, DY=0)
- Line specify the next point: @0,1 (DX=0, DY=1)
- Line specify the next point: @-5,0 (DX=-5, DY=0)
- Line specify the next point: @0,4 (DX=0, DY=4)
- Line specify the next point: @5,0 (DX=5, DY=0)
- Line specify the next point: @0,1 (DX=0, DY=1)
- Line specify the next point: @-6,0 (DX=-6, DY=0)
- Line specify the next point: Type 'C' for close
- The Geometry is done.
RESULT:

- P1 Relative Polar coordinate system: (@N>D, Wherer N is the lenght of the line and D is the orientation of the line)
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1) (starting point)
- Line specify the next point: @6<0 (Towards East)
- Line specify the next point: @1>90 (Towards North)
- Line specify the next point: @5<180 (Towards West)
- Line specify the next point: @4<90 (Towards North)
- Line specify the next point: @5<0 (Towards East)
- Line specify the next point: @1<90 (Towards North)
- Line specify the next point: @6<180 (Towards West)
- Line specify the next point: Type 'C' for close OR @6<270 (Towards South)
- The Geometry is done.
RESULT:

- Direct Distance Entry:
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1)
- Line specify the next point: 6 (Towards East)
- Line specify the next point: 1 (Towards North)
- Line specify the next point: 5 (Towards West)
- Line specify the next point: 4 (Towards North)
- Line specify the next point: 5 (Towards East)
- Line specify the next point: 1 (Towards North)
- Line specify the next point: 6 (Towards West)
- Line specify the next point: Type 'C' for close or point 6 (Towards South)
- The Geometry is done.
RESULT

QUESTION-2, Picture-2

-P2 Absolute coordinate system: Here, all the points are taken with respect to origin.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1)
- Line specify the next point: (5,1)
- Line specify the next point: (5,5)
- Line specify the next point: (6,5)
- Line specify the next point: (6,1)
- Line specify the next point: (9,1)
- Line specify the next point: (7,8)
- Line specify the next point: (4,8)
- Line specify the next point: Type 'C' for close or (point 2,1 )
- The Geometry is done.
RESULT:

- Relative coordinate system:
- P2 Relative rectangular coordinate system: Here using the symbol @ shift the coordinates(origin) from (0,0) to previous last point have to move to left or downwards we have to use negative sign in x and y axis respectively.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1) (starting point P)
- Line specify the next point: @3,0 (DX=3, DY=0) Q
- Line specify the next point: @0,4 (DX=0, DY=4) R
- Line specify the next point: @1,0 (DX=1, DY=0) S
- Line specify the next point: @0,-4 (DX=0, DY=-4) T
- Line specify the next point: @3,0(DX=3, DY=0) U
- Line specify the next point: @-2,7 (DX=-2, DY=7) V
- Line specify the next point: @-3,0 (DX=-3, DY=0) W
- Line specify the next point: Type 'C' for close
- The Geometry is done.
RESULT:

- P2- Relative Polar coordinate system: (@N>D, Wherer N is the lenght of the line and D is the orientation of the line)
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1) (starting point P)
- Line specify the next point: @3<0 [Q] (Towards East)
- Line specify the next point: @4<90 [R] (Towards North)
- Line specify the next point: @1<0 [S] (Towards East)
- Line specify the next point: @4<270 [T] (Towards South)
- Line specify the next point: @3<0 [U] (Towards North)
- Line specify the next point: @7<90 [V] (Towards North)
- Line specify the next point: @2<180 (POINT V) [joint point Uand P through line and erase line UA and line Av]
- Line specify the next point: @3<180 [W] (Towards West)
- Line specify the next point: Type 'C' for close OR @6<270 (Towards South)
- The Geometry is done.
RESULT

- Direct Distance Entry:
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1) P
- Line specify the next point: 3 [Q] (Towards East)
- Line specify the next point: 4 [R] (Towards North)
- Line specify the next point: 1 [S] (Towards East)
- Line specify the next point: 4 [T] (Towards South)
- Line specify the next point: 3 [U] (Towards East)
- Line specify the next point: 7 [A](Towards North)
- Line specify the next point: 2 [V] (Towards West)
- Joint point U and point V through line and erase line UA and line VA
- Then use line command and star through [V]
- Line specify the next point: 3 [W] (Towards West)
- Line specify the next point: Type close or 'C'
- The Geometry is done.
RESULT

QUESTION-3, Picture-4

-P4
I will choose Absolute coordinate system. Here, all the points are taken with respect to origin.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1)
- Line specify the next point: (3,1)
- Line specify the next point: (3,5)
- Line specify the next point: (5,3)
- Line specify the next point: (7,5)
- Line specify the next point: (7,1)
- Line specify the next point: (8,1)
- Line specify the next point: (8,8)
- Line specify the next point: (7,8)
- Line specify the next point: (5,5)
- Line specify the next point: (3,8)
- Line specify the next point: (2,8)
- Line specify the next point: Type 'C' for close or (point 2,1 )
- The Geometry is done.
RESULT:

QUESTION-4, Picture-5

-P5
I will choose Relative Rectangular coordinate Syastem. Here using the symbol @ shift the coordinates(origin) from (0,0) to previous last point have to move to left or downwards we have to use negative sign in x and y axis respectively.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1) (starting point P)
- Line specify the next point: @1,0
- Line specify the next point: @0,7
- Line specify the next point: @5,0
- Line specify the next point: @0,-6
- Line specify the next point: @-3,0
- Line specify the next point: @0,-1
- Line specify the next point: @4,0
- Line specify the next point: @0,8
- Line specify the next point: @-7,0
- Line specify the next point: Type 'C' for close
- The Geometry is done.
RESULT:

QUESTION-5, Picture-7

-P7
I will choose Relative polar Syastem (@N>D, Wherer N is the lenght of the line and D is the orientation of the line)
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,1)
- Line specify the next point: @8<0 (Towards East)
- Line specify the next point: @6<90 (Towards North)
- Line specify the next point: @8<180 (Towards West)
- Line specify the next point: Type 'C' for close
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (3,2)
- Line specify the next point: @2<0 (Towards East)
- Line specify the next point: @3<90 (Towards North )
- Line specify the next point: @2<180 (Towards West)
- Line specify the next point: Type 'C' for close
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (6,2)
- Line specify the next point: @2<0 (Towards East)
- Line specify the next point: @3<90 (Towards North)
- Line specify the next point: @2<180 (Towards West)
- Line specify the next point: Type 'C' for close
- The Geometry is done.
RESULT

QUESTION-6, Picture-8

- p-8 I will choos Direct Distance Entry
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (0,0)
- Line specify the next point: 10 (Towards East)
- Line specify the next point: 2 (Towards North)
- Line specify the next point: 4 (Towards West)
- Line specify the next point: 4(Towards North)
- Line specify the next point: 3 (Towards East)
- Line specify the next point: 2 (Towards North)
- Line specify the next point: 8 (Towards West)
- Line specify the next point: 2 (Towards South)
- Line specify the next point: 3 (Towards East)
- Line specify the next point: 4 (Towards South)
- Line specify the next point: 4 (Towards West)
- Line specify the next point: Type 'C' for close (Towards South)
- The Geometry is done.
RESULT

QUESTION-7, Picture-9

-P9
I will choose Absolute coordinate system. Here, all the points are taken with respect to origin.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (1,1)
- Line specify the next point: (6,1)
- Line specify the next point: (6,3)
- Line specify the next point: (3,3)
- Line specify the next point: (3,2)
- Line specify the next point: (2,2)
- Line specify the next point: (2,4)
- Line specify the next point: (5,4)
- Line specify the next point: (5,6)
- Line specify the next point: (1,8)
- Line specify the next point: Type 'C' for close or (point 2,1 )
- The Geometry is done.
RESULT:

QUESTION-8, Picture-10

-P10
I will choose Relative Rectangular coordinate System. Here using the symbol @ shift the coordinates(origin) from (0,0) to previous last point have to move to left or downwards we have to use negative sign in x and y axis respectively.
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (1,1)
- Line specify the next point: @2,0
- Line specify the next point: @0,3
- Line specify the next point: @3,0
- Line specify the next point: @0,4
- Line specify the next point: @-5,0
- Line specify the next point: Type 'C' for close
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (2,5)
- Line specify the next point: @3,0
- Line specify the next point: @0,2
- Line specify the next point: @-3,0
- Line specify the next point: Type 'C' for close
- The Geometry is done.
RESULT:

Civil related drawing : profile wood and trusses
1.Profile Wood- Relative Polar Coordinate system 
Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (0,0)
- Line specify the next point: @10<0
- Line specify the next point: @1<90
- Line specify the next point: @2<180
- Line specify the next point: @4<90
- Line specify the next point: @2<0
- Line specify the next point: @1<90
- Line specify the next point: @5.831<159.041
- Line specify the next point: @5.831<210.964
- Line specify the next point: @2<90
- Line specify the next point: @5<270
- Line specify the next point: @2<180
- Line specify the next point: Type 'C' for close
- Type the commant for Circle or 'C' Enter
- The commant bar ask us to specify the first point: (5,4)
- provide the radius of the circle as 2.
- The Geometry is done.
RESULT:

2.Queen Post Truss: Relative Rectangular coordinate system

Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (1,1)
- Line specify the next point: @0,4
- Line specify the next point: @3.5,3.57
- Line specify the next point: @3.5,-3.57
- Line specify the next point: @0,-4
- Again select line command.
- Line specify the next point: @1,5
- Line specify the next point: @1,0
- Line specify the next point: @0,1
- Line specify the next point: @0,1
- Line specify the next point: @2.5,-1
- Line specify the next point: @0,3.57
- Line specify the next point: @
- Again select line command.
- Line specify the next point: @4.5,5
- Line specify the next point: @2.5,0
- Line specify the next point: @0,1
- Line specify the next point: @-2.5,-1
- Line specify the next point: @-2.5,0
- Line specify the next point: Type 'C' for close
RESULT:

3. Mono Pitch: Absolute coordinate system

Step by Step Procedure:
- Type the commant for line or 'L' Enter
- The commant bar ask us to Line specify the first point: (1,1)
- Line specify the next point:(3,1)
- Step by Step Procedure:(3,1.667)
- Step by Step Procedure: (5,1)
- Step by Step Procedure: (5,2.333
- Step by Step Procedure: (7,1)
- Step by Step Procedure: (7,3)
- Step by Step Procedure: (1,1)
- Then close the lremainign porting bu the line.
RESULT:

- Erasing an object: To erase an object =, the object is first selected and the erase options is selected. This is done by any following ways.
- Ribbon: Home-->modify panel-->Erase.
- Tool bar: modify-->Erase
- Menu bar: Modify--> Earse
- Command: Erase or E
- Tool pallets: Modify-->Erase