Creation of geometries by Coordinate system methods using AutoCad

AIM:
(A) Create the geometries from P1 to P8 using all the coordinate system methods. And we need
to use a line tool, and find the missing dimensions.
(B) Civil related problems- Draw the profile and the trusses using any coordinate system
methods. The dimensions are there for references.

Introduction:

Before going to the drawing we should know about the coordinate systems.
In Autocad there are two coordinate systems: Cartesian and polar.
To these coordinate systems the absolute and relative coordinates of Autocad as are applicable.
Also coordinates in AutoCAD can be set by mouse, input (setting) the values of coordinates in
the command line and enter coordinates using dynamic input.
There are three types of coordinate systems.
1. Absolute coordinate systems

2. Relative coordinate systems

(a.) Relative rectangular coordinates
(b.) Relative polar coordinates

3. Direct distance entry

Commands used:

1. line command.
2. Dimlinear command.
3. Text command.
4. Circle command.

(A) Create the geometries from P1 to P8 using all the coordinate system methods. And we need
to use line tool, and find the missing dimensions

Procedure

• Select imperial system and decimal units.
• use the line command enter the coordinates.

Absolute coordinate systems

P-1 drawing

P-2 drwaing

P-3 drawing

P-4 Drawing

P-5 Drawing

P-6 Drawing

P-7 Drawing

P-8 Drawing

Relative coordinate systems

P-1

The coordinates are (2,1) (@6,0) (@0,1)(@-5,0)(@0,4)(@5,0)(@0,1)(@-6,0)

P-2

The coordinates are (2,1)(@3,0)(@0,4)(@1,0)(@0,-4)(@3,0)(@-2,7)(@-3,0)(-2,-7)

P-3

P-4

Relative polar coordinates

P-2

Direct distance entry

P-1

P-2

P-3

(B) Civil related problems- Draw the profile and the trusses using any coordinate system
methods. The dimensions are there for references.
• Now we draw the given diagrams using the Absolute coordinate system method.

Profile wood

Queen post truss

Mono pitch

Result

• The coordinate are clearly mentioned in all the drawing, and missing dimensions also weitten
• using all coordinate system the drawing from P-1 to P-8 drawings.
• The profile and trusses are drawn successfully by using abosolute coordinate system method.