Use of Line Tools in AutoCad and It’s Type’s

Line is a tool in an AutoCAD which is found in the ribbon panel. Line is a most easy and frequently use software in the AutoCAD. It is base of every design which is create in auto cad. You can also change the length and width in the software.

It helps to create a continues line segment. When you click line command it ask you the first point to start after that you have to select the second point to create a line. This line is called continues because of the you don’t have to select the tool in AutoCAD to move from 2nd to 3rd point.

Short Command: L Enter

There are many types of line in AutoCAD

  • Construction line

  • Ray

  • Poly-line

  • Spline

  • Multi-line

  • 3-point line

You can also change the line type in the option-

You can get dotted line and tangent line and the center line in the option

  1. Construction line: Construction line is a type of line which is used get the reference for producing design or drowning. After getting the reference this infinite line is removed from the drawing surface.

Construction line is used for main reason for getting points and get removed by the trim tool (TR enter enter).

Select the specific point and direction an in finite line is been drawn.

Short Command: XL Enter

  1. Ray: Ray is type of extended display of the line from one point to the different point. This will give the direction of the point to the another with the angle.

For making the construction line first we have to select the specific point. And the angle the different point to get the reference.

Ray line can be extended to the infinite plane.

  1. Poly-line: Poly-line basically the connected points of line segments created as a single object. There are different points in the same line you can make the arc angle and gave the direction too.

after you move, stretch, bend or even the create the rectangle. line is remain join to each other.

  1. Spline: line is used to create the smooth curve. From one point to another because of that we can make the instructing designs.

Splines are defined either with fit points, or with control vertices. It continent method to make the design.

It can be simply make the smooth line be by joining the differ points.

Short Command: SPL Enter

  1. Multi-line: Multi-line is the combination of the lines are parallel to each other. Like poly line several points were connected to each other this line is connected to each other. There line is in same source to each other but you change the distance between them.

Short Command: ML Enter

  1. 3-point line: This is the line contains of 3 points which can used make 1 or 2 line but these line are connected to each other.


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Pros and Cons of the Google Sketchup Software

Sketch Up is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, landscape architecture, civil and mechanical engineering.

It was developed initially last software in 2000.They were acquired by google in 2006 and the first free version of this software Google sketch up (GSU) was released on 27 April.

Google sketch up consists of various editing tools that are used for designing any area, house, apartment, or any other place interior as well as exterior view.

Google Sketch Up allows users to “play” around with their designs which are difficult in 3D CAD programs. You can easily generate a quick 3D model in the program to explain your ideas.

Google Sketch Up allows users to “play” around with their designs which are difficult in 3D max programs. You can easily generate a quick 3D model in the program to explain your ideas. It provides new possibilities and opportunities for people who have difficulties in sketching drawings. With Google Sketch Up it is possible to sketch a quick drawing on paper and translate it into a 3D model very quickly.


  1. Easy to understand

  2. Time saving

  3. Easy to access as compare to other Auto Desk program like auto cad ,3d max.

  4. All editing tools are available in menu bar that are easy to use in projects

  5. 3d warehouse is available in sketch up ,from their you can download various ready made models which can be directly imported into the projects

  6. There are more than 1lakh models available in warehouse option

  7. It is very simple to use. It has a great user interface and can allow the user to draw many object

  8. Animated clip or walk through can be created using camera in sketch up

  9. lighting effect can be given to room or building


It is not professional and won’t allow you to really customize your sketches, it is only limited in design.

 Most Important Google Sketchup Tools and their Uses:

Tool Name Shortcut Key Use
RECTANGLE R This tool is used to draw 2 dimensional object by giving its length and width,and height after base dimensions
CIRCLE C It is used to create table,mirror ,wall painting ,clock and many more objects can be created using circle in interior as well as exterior

This tool is used to draw any object randomly without any dimensions

SELECT Select tool is used to identify command and move accordingly

Component tool is uses to select different objects and then make changes in that object at same tim e in all selected objects

FREEHAND This tool is used to draw freehand curved line as needed
ERASER e This command is used to erase extra lines or delete thet line
ARC a This command is used to draw arc using 2 points and the amount of bend you want to give
MOVE m This command is used to move object from one place to other
PUSH AND PULL p This command is used to give height and depth or thickness to the object
ROTATE q This commansd is used to rotate any object at particular required angle e.g 123 degree
SCALE s This command is used to increase and decrease size of any object
OFFSET This command is used to make line or and object copy equally from all sides e.g outside rectangle of 10′,10′ and offset of same rectangle is take 4.5 then 2 rectangles are created at distance of 4.5
TAPE MEASURE t This command is used to measure dimensions of an object
MEASUREMENT This command is used to mark and write dimension on the object
PROTACTOR This command is used to measure angle
TEXT This command is used to write description about object and text related to particular object
AXES This object is used to move object according to axes and direction to see all faces of object
3D TEXT This command is used towrite 3d text with varioud text modifying options like different font style,text size etc
ORBIT O This command is used to move axes using scrooll wheel by pressing it
PAN This command is used to pan or focus the camera
ZOOM EXTENDS This command is used to zoom particular model
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Uses of Polylines in AutoCAD

  • A polyline is an object in AutoCAD that consists of one or more line (or arc) segments. A rectangle is an example of a polyline that you are already familiar with. As you’ve seen, it is one object that can be modified and worked with easier than four separate lines.
  • A 2D polyline is a connected sequence of segments created as a single planar object. You can create straight line segments, arc segments, or a combination of the two.

Benefits of Ploylines:

  • From the moment a polyline contains more than one segment, the area becomes a property.

  • One or more selected polylines can be closed or opened by changing the closed property from no to yes, and vice versa.

  • line width can be applied on plines only.

CAD Training Institute (CTI) is one of the education partners of ADMEC Multimedia Institute. CAD Training Institute provides advanced CAD training to fulfill the need of civil, mechanical, and electrical engineers. We do offer highly advanced courses for architects and interior designers too.


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The Function of “ORTHO”, “POLAR” and “Dynamic Input” in Autocad

Ortho, Polar & Dynamic Input are modes of operation. They are situated in the status bar just below the workspace. Each mode gives the workspace a certain direction of working i.e. in workspace while using cursor each mode activates certain way of movement or certain way of command giving. They can be used according to the need of the designer. They are actually there to help in creating exact designs according to the need.

Given bellow are the descriptions of each mode. 

Ortho: This is orthogonal lock for cursor. That means when it’s on the lines will move only in vertical or horizontal direction irrespective of the movement of the cursor. So if the design is restricted to only this to direction, this mode will help ensure the correctness of those lines. 

To switch on “Ortho” mode one need to either left click on ORTHO on status bar or press F8 on keyboard.

Polar: This is to create line in all directions throughout 360 degree. When this mode is on, the input in given as the length of the line with the angle for the line from its point of origin. This mode cannot work with ortho mode. So only either of the two can be on at the same time. The angle can be selected by right clicking on the polar mode and using the settings option. Thus cursor will snap at the selected angle from the point of origin. Polar mode is helpful in creating line designs with accurate angle.

To switch on polar mode one need to either left click on POLAR on status bar or press F10 on key board. 

Dynamic Input: This input system helps someone to put both the input of length and angle together thus making it the faster mode working than the previous two modes. When this mode is on the cursor will show both input options for length and angle together. 1st input is length than the angle. One needs to press tab after putting the length value and then put the value of angle thus creating the line from the point of origin.

To switch on Dynamic input one need to either left click on DYN on status bar or press F12 on keyboard.

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CAD Training Institute in North Delhi, India

Cad Training Institute CTI is a premier Autocad Training Institute established about one decade ago. CTI has a successful track record of training over 10,000 candidates included engineering and diploma students. CTI has also successful track record to placed 80% students in top level company. 

CTI Training Programs

CTI imparts training to Civil Engineers, Mechanical Engineers, Architects, Electrical Engineers, Interior designers, ITI’s and graduates and undergraduates in various courses like: autocad, cad courses in civil, cad courses in mechanical,cad courses in electrical, cad courses in architects, revit, revit mep, revit architecture, revit structure, google sketchup, autodesk 3ds max etc….

Combined Courses:

  • Architect Interior Master Course

  • Architect Interior Premium Course

  • Architect Interior Standard Course


CTI is fully equipped with latest infrastructure and facility to cater to the needs of its students. CTI has includes latest computer systems, Latest software and all required electronic equipment and fully furnished premises at rohini, centrally located at Delhi. 

All of CTI’s instructors are industry expert professional. They have years of experience in the field of engineering, architects and surveyors with years of real time project. Our instructors regularly use the latest trends and technique to provide real word chance to students. Latest updated application and professional trainers allow student to put their idea among real world.

Post Training Opportunity..

CTI also provides post-training opportunity through the placement links available on website. It’s provides placement assistance to all its students through placement web page find latest job.


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