Creation of geometries by Coordinate system methods using AutoCad

AIM :

a) Create the geometries from P1 to P2 using all the coordinates system methods, and also by using the Line tool to create the geometries and find out 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 :

• There are three AUTOCAD cordinates system they are,

1. Absolute coordinate system.

2. Relative coordinate system.

3. Polar coordinate system.

4. Direct distance entry.

*ABSOLUTE COORDNATE SYSTEM :

• Absolute coordinates refers to a Cartesian System that uses x-axis, y-axis, and sometimes a z-axis to establish a point some distance from a common origin.

*RELATIVE COORDINATE SYSTEM :

• After first point entered, your next points can be entered by specifying the next coordinate compare or relative from the first points. The relative coordinate started with symbol"@" tell AutoCAD it was a relative coordinates. using Relative coordinate, points entered by typing @xy.

*POLAR COORDINATE SYSTEM :

• Polar coordinates used when you need to draw the next points at spicify angle. Polar coordinates system in AutoCAD specifies distance length at which angle. Using polar coordinate, points entered by typing @distance.

PROCEDURE :

a) Absolute coordinate :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Specify next point as (8,1)
• Specify next point as (8,2)
• Specify next point as (3,2)
• Specify next point as (3,6)
• specify next point as (8,6)
• Specify next point as (8,7)
• Specify next point as (2,7)
• Click on close in command bar.
• The Geometry is done.

b) Relative coordinate :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Specify next point @(6,0)
• Specify next point @(0,1)
• Specify next point @(-5,0)
• Specify next point @(0,4)
• Specify next point @(5,0)
• Specify next point @(0,1)
• Specify next point @(-6,0)
• Click on close in command bar.
• The Geometry is done.

c) Relative Polar coordinate :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Specify next point @(6<0)(Towards East)
• Specify next point @(1<90)(Towards North)
• Specify next point @(5<180)(Towards West)
• Specify next point @(4<90)(Towards North)
• Specify next point @(5<0)(Towards East)
• Specify next point @(1<90)(Towards North)
• Specify next point @(6<180)(Towards West)
• Click on close in command bar.
• The Geometry is done.

d) Direct distance entry :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Specify next point (6)(keep cursor towards East)
• Specify next point (1)(keep cursor towards North)
• Specify next point (5)(keep cursor towards West)
• Specify next point (4)(keep cursor towards North)
• Specify next point (5)(keep cursor towards East)
• Specify next point (1)(keep cursor towards North)
• Specify next point (6)(keep cursor towards West)
• Click on close in command bar.
• The Geometry is done.

RESULT :

a) Absolute coordinate :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Specify next point as (5,1)
• Specify next point as (5,5)
• Specify next point as (6,5)
• Specify next point as (6,1)
• specify next point as (9,1)
• Specify next point as (7,8)
• Specify next point as (4,8)
• Click on close in command bar.
• The Geometry is done.

b) Relative coordinate :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Specify next point @(3,0)
• Specify next point @(0,4)
• Specify next point @(1,0)
• Specify next point @(0,-4)
• Specify next point @(3,0)
• Specify next point @(-2,7)
• Specify next point @(-3,0)
• Click on close in command bar.
• The Geometry is done.

c) Relative Polar coordinate :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Specify next point @(3<0)
• Specify next point @(4<90)
• Specify next point @(1<0)
• Specify next point @(4<270)
• Specify next point @(3<0)
• Specify next point @(7<106)
• Specify next point @(3<180)
• Click on close in command bar.
• The Geometry is done.

d) Direct distance entry :

• Click on the autocad applicationand open this application.
• Type Q NEW in the command bar and enter.
• Selct default settings as imperiol(feet and inches)
• In Default settings click on use wizard and in that advance settings set unit as decimaland precicion as 0 and press next.
• Set angel as decimal degree and precision 0 and press next.
• Set Angle measure as East and press Next.
• Set angle direction as counter-clockwise and press next .
• Set area by provinig length as 10 and width 10
• press finish.
• From home tab press on line.
• Specify first point in command bar(2,1)
• Enter the length of next point as (3) towards +ve X axis.
• Specify next point (4)(keep cursor towards North)
• Specify next point (1)(keep cursor towards East)
• Specify next point (4)(keep cursor towards South)
• Specify next point (3)(keep cursor towards East)
• Specify next point (7)(keep cursor towards East)
• Specify next point (3)(keep cursor towards West)
• Click on close in command line.

RESULT :

* Using Absolute Coordinate System :

• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (2,1)
• Specify next point (3,1)
• Specify next point (3,5)
• Specify next point (5,3)
• Specify next point (7,5)
• Specify next point (7,1)
• Specify next point (3,1)
• Specify next point (8,8)
• Specify next point (7,8)
• Specify next point (5,5)
• Specify next point (3,8)
• Specify next point (2,8)
• Click on CLOSE in command line.

RESULT :

* Using Relative Rectangular Coordinate system :

• Select LINE tool from ribbon or type Line command in command bar.
• Specify first point (2,1)
• Specify next point @ 1,0
• Specify next point @ 0,7
• Specify next point @ 5,0
• Specify next point @ 0,-6
• Specify next point @ -3,0
• Specify next point @ 0,-1
• Specify next point @ 4,0
• Specify next point @ 0,8
• Specify next point @-7,0
• Click on CLOSE in command line.

RESULT :

* Using Absolute Coordinate System :

• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (2,1)
• Specify next point (10,1)
• Specify next point (10,7)
• Specify next point (2,7)
• Click on CLOSE in command line.
• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (3,2)
• Specify next point (5,2)
• Specify next point (5,5)
• Specify next point (3,5)
• Click on CLOSE in command line.
• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (6,2)
• Specify next point (8,2)
• Specify next point (8,5)
• Specify next point (6,5)
• Click on CLOSE in command line.

RESULT :

* Using Relative Rectangular Coordinate system :

• Select LINE tool from ribbon or type Line command in command bar.
• Specify first point (0,0)
• Specify next point @ 10,0
• Specify next point @ 0,2
• Specify next point @ -4,0
• Specify next point @ 0,4
• Specify next point @ 3,0
• Specify next point @ 0,2
• Specify next point @ -8,0
• Specify next point @ 0,-2
• Specify next point @3,0
• Specify next point @ 0,-4
• Specify next point @-4,0
• Click on CLOSE in command line.

RESULT :

* Using Absolute Coordinate System :

• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (1,1)
• Specify next point (6,1)
• Specify next point (6,3)
• Specify next point (3,3)
• Specify next point (3,2)
• Specify next point (2,2)
• Specify next point (2,4)
• Specify next point (3,4)
• Specify next point (5,6)
• Specify next point (1,8)
• Click on CLOSE in command line.

RESULT :

* Using Polar Coordinate system :

• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (1,1)
• Specify next point @2<0
• Specify next point @3<90
• Specify next point @5<180
• Specify next point @4<90
• Specify next point @5<180
• Click on CLOSE in command line.
• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (2,5)
• Specify next point @3<0
• Specify next point @2<90
• Specify next point @3<180
• Click on CLOSE in command line.

RESULT :

* Using Direct distance entry System :

• Select LINE tool from ribbon or Line command in command bar.
• Specify first point in command bar(0,0)
• Specify next point (10)(keep cursor towards East)
• Specify next point (1)(keep cursor towards North)
• Specify next point (2)(keep cursor towards West)
• Specify next point (4)(keep cursor towards North)
• Specify next point 831 at an angle<149.036 from +ve X-direction while keeping polar tracking on.
• Specify next point 5.831 at an angle<210.964 from +ve X-direction
• Specify next point (2)(keep cursor towards North)
• Specify next point (5)(keep cursor towards West)
• Specify next point (2)(keep cursor towards West)
• Click on close in command bar.
• Select the circle tool bybentering CIRCLE command in command bar.
• Specify center point(5,4)
• Specify radius as 2.

RESULT :

* Using Relative Rectangular Coordinate system :

• Select LINE tool from ribbon or type Line command in command bar.
• Specify first point (1,1)
• Specify next point @ 1,0
• Specify next point @ 0,4and lets coonsider as point 1
• Specify next point @ 3.536,-3.356 and consider it as point 2
• Specify next point @ 3.536,-3.356 and consider it as point 3
• Specify next point @ 0,-4.
• press Esc to cancel the line command.
• Select Line tool again from ribbon.
• Join point 1 and 3.
• press Esc to cancel the line command
• Select Line tool again from ribbon.
• Specify point as (4.365,5) and lets consider it as point 4
• Specify point @-2.5361,1
• Specify next point @ 0,-1
• press Esc to cancel the line command
• Select Line tool again from ribbon.
• Specify point as (4.365,5)
• Specify point @2.5361,1
• Specify next point @ 0,-1
• press Esc to cancel the line command
• Select Line tool again from ribbon.
• Join point 2 and 4.
• press Esc to cancel the line command.

RESULT :

* Using Absolute Coordinate System :

• Select LINE tool from ribbon or Line command in command bar.
• Specify first point (1,1)
• Specify next point (7,1)
• Specify next point (7,3)
• Click on CLOSE in command line.
• Select LINE tool from ribbon or Line command in command bar.
• Specify point (3,1)
• Specify next point (3,1.667)
• Specify next point (5,1)
• Specify next point (5,2.33)
• Specify next point (7,1)
• Click on CLOSE in command line.

RESULT :