Projection of lines
•Download as PPT, PDF•
4 likes•3,431 views
This document provides instructions for an assignment in engineering graphics. It outlines 5 problems to complete for the assignment involving different types of projections of lines, including: 1. Finding the angle of inclination for problems involving a pentagon, square, and rectangle. 2. Problems from the university questions involving finding the angle of inclination for a circle and hexagon. 3. An overview of the different types of projections involving lines in various orientations to the horizontal and vertical planes. There are 7 different types described involving finding lengths, angles of inclination, loci of points, and distances of lines.
Report
Share
Report
Share
Recommended
Projection of Lines
The document discusses the concepts and methods of projecting lines in engineering graphics. It defines key terms used in line projections such as true length, front view length, top view length, end projector distance, and inclinations. It presents different categories of line positions with respect to reference planes and provides examples of each with their orthographic projections. The document also contains several example problems demonstrating how to draw the projections of lines given information about their lengths, positions of endpoints, and inclinations to the planes. It describes the process for locating the horizontal and vertical traces of a line when given its projections.
projection of line
This document discusses the projection of lines in engineering graphics. It explains that lines can be parallel, perpendicular, or inclined to the horizontal and vertical planes. The key rules are: 1) A line parallel to both planes will have equal length projections. 2) A line perpendicular to one plane will be a point in the view parallel to that plane. 3) A line contained in a plane will show its true length in that view. Examples are given showing how to project lines in different positions in relation to the planes.
5. projection of lines
This is Mechnicial Engineering's subjrct technicial drawing slides
topic name is Projection of lines.
this would help you in how you draw front side and top view of a line.
Projection of points
1. The document discusses the projection of points and their views in different quadrants formed by the horizontal and vertical planes.
2. Key details include how the top view and front view of a point change depending on whether it is above or below the planes, and in front of or behind the vertical plane.
3. Examples are given of points located in each quadrant and their corresponding projections.
Projection of Lines
The problem provides the top view, front view and position of one end of a line AB. The top view measures 65mm, the front view measures 50mm, and end A is in the horizontal plane and 12mm in front of the vertical plane. To solve the problem:
1) Draw the top view parallel to the XY line since in that case the front view will show the true length.
2) Extend the top view to determine the true length of 75mm.
3) Use trapezoidal method to determine the inclinations of the line with the principal planes as 30 degrees with the horizontal plane and 48 degrees with the vertical plane.
Projectionofpointsandlines (1)
This document provides lecture notes on orthographic projections of points and lines. It begins by outlining the key information needed to draw projections, including the object, observer, and object location. It then discusses the four quadrants formed by the horizontal and vertical planes and how an object's placement affects its front and top views. Various examples of point and line projections are shown, including the effects of an object's placement in different quadrants. Key concepts like true length, front, top, and side views are defined. The document concludes with example problems demonstrating how to draw orthographic projections of lines given information like lengths, angles and end point positions.
Projection of lines with problems
This document provides instructions for drawing orthographic projections of points, lines, planes and solids. It explains key concepts like quadrants, front view (FV), top view (TV), true length, inclination angles and more. Examples are given of drawing projections of a point and various types of lines (vertical, parallel, inclined) placed in different quadrants. The document establishes important parameters and notation for solving projection problems, including true length, angles of inclination, view lengths and positions of endpoints. Sample problems are worked through applying these concepts and parameters to draw projections when given information like dimensions, inclinations and endpoint positions.
Engineering Graphics-Lines
This document discusses the principles of engineering graphics related to projecting straight lines in orthographic projections. It begins by defining the different types of lines such as vertical, horizontal, and inclined lines. It then provides examples of how to determine the front view, top view, and true length of a line given information about its inclination to the planes and the positions of its ends. The document emphasizes that the front and top views of a line inclined to both planes will have reduced lengths. It concludes by discussing the special case of a line lying in a profile plane, where the front and top views will overlap on the same projector line.
Recommended
Projection of Lines
The document discusses the concepts and methods of projecting lines in engineering graphics. It defines key terms used in line projections such as true length, front view length, top view length, end projector distance, and inclinations. It presents different categories of line positions with respect to reference planes and provides examples of each with their orthographic projections. The document also contains several example problems demonstrating how to draw the projections of lines given information about their lengths, positions of endpoints, and inclinations to the planes. It describes the process for locating the horizontal and vertical traces of a line when given its projections.
projection of line
This document discusses the projection of lines in engineering graphics. It explains that lines can be parallel, perpendicular, or inclined to the horizontal and vertical planes. The key rules are: 1) A line parallel to both planes will have equal length projections. 2) A line perpendicular to one plane will be a point in the view parallel to that plane. 3) A line contained in a plane will show its true length in that view. Examples are given showing how to project lines in different positions in relation to the planes.
5. projection of lines
This is Mechnicial Engineering's subjrct technicial drawing slides
topic name is Projection of lines.
this would help you in how you draw front side and top view of a line.
Projection of points
1. The document discusses the projection of points and their views in different quadrants formed by the horizontal and vertical planes.
2. Key details include how the top view and front view of a point change depending on whether it is above or below the planes, and in front of or behind the vertical plane.
3. Examples are given of points located in each quadrant and their corresponding projections.
Projection of Lines
The problem provides the top view, front view and position of one end of a line AB. The top view measures 65mm, the front view measures 50mm, and end A is in the horizontal plane and 12mm in front of the vertical plane. To solve the problem:
1) Draw the top view parallel to the XY line since in that case the front view will show the true length.
2) Extend the top view to determine the true length of 75mm.
3) Use trapezoidal method to determine the inclinations of the line with the principal planes as 30 degrees with the horizontal plane and 48 degrees with the vertical plane.
Projectionofpointsandlines (1)
This document provides lecture notes on orthographic projections of points and lines. It begins by outlining the key information needed to draw projections, including the object, observer, and object location. It then discusses the four quadrants formed by the horizontal and vertical planes and how an object's placement affects its front and top views. Various examples of point and line projections are shown, including the effects of an object's placement in different quadrants. Key concepts like true length, front, top, and side views are defined. The document concludes with example problems demonstrating how to draw orthographic projections of lines given information like lengths, angles and end point positions.
Projection of lines with problems
This document provides instructions for drawing orthographic projections of points, lines, planes and solids. It explains key concepts like quadrants, front view (FV), top view (TV), true length, inclination angles and more. Examples are given of drawing projections of a point and various types of lines (vertical, parallel, inclined) placed in different quadrants. The document establishes important parameters and notation for solving projection problems, including true length, angles of inclination, view lengths and positions of endpoints. Sample problems are worked through applying these concepts and parameters to draw projections when given information like dimensions, inclinations and endpoint positions.
Engineering Graphics-Lines
This document discusses the principles of engineering graphics related to projecting straight lines in orthographic projections. It begins by defining the different types of lines such as vertical, horizontal, and inclined lines. It then provides examples of how to determine the front view, top view, and true length of a line given information about its inclination to the planes and the positions of its ends. The document emphasizes that the front and top views of a line inclined to both planes will have reduced lengths. It concludes by discussing the special case of a line lying in a profile plane, where the front and top views will overlap on the same projector line.
B.tech i eg u2 loci of point and projection of point and line
1. The document discusses different types of basic locus cases including points moving relative to geometric objects like lines and circles.
2. It also covers oscillating and rotating links, where a point slides along a link that is oscillating or rotating in a plane.
3. Examples and solutions are provided for different locus problems involving points moving to maintain a constant distance from objects like lines, circles, and other points. Diagrams clearly illustrate the solution steps and resulting loci.
Projection of Line
Projection of Line basics, Projection of line parallel to both the planes, projection of line perpendicular to one plane, projection of line inclined to one and both the planes
Orthographic projection EG
The document provides instructions for drawing orthographic projections of points and lines. It defines key terms and concepts used in orthographic projections including quadrants, front view (FV), top view (TV), horizontal plane (HP), and vertical plane (VP). Examples are given of drawing the projections of a point located in different quadrants, as well as different types of lines, such as vertical, parallel, and inclined lines. Guidelines are provided for determining the FV and TV based on whether the object is above or below the HP and in front of or behind the VP. Methods for finding true lengths, angles, and orientations are also described when only FV and TV are given.
projection of straight line and point in engineering drawind
The document provides instructions for drawing orthographic projections of points, lines, and basic solids. It explains that to draw projections, you need information about the object, observer, and object location. Points are used as simple examples, with their front, top, and side views explained. Guidelines are provided for naming different views and standard notations. Projections are demonstrated for a point placed in each of the four quadrants formed by the horizontal and vertical planes. Methods for drawing projections of lines are described, including vertical lines, lines parallel to both planes, and lines at various angles to the planes. Trapezoidal and rotational methods are explained for determining true lengths and angles from given projections.
Projection of-point-and-lines-engineering108.com
The document provides information on orthographic projections of points and lines. It defines front view (FV), top view (TV), and notations used to represent different views. It then demonstrates how to determine the projections of a point placed in different quadrants. Next, it discusses the projections of straight lines in different orientations and illustrates cases where the line is perpendicular, parallel, or inclined to the planes. The document also covers determining the true length, traces (intersections of a line with reference planes), and using the given views to find angles and unknown dimensions. Examples of different projection problems are provided along with step-by-step solutions.
Projection of lines(new)
an useful presentation for all 1st year engineering students who are afraid of the subject : ENGINEERING GRAPHICS
learn, enjoy~
6 projections of lines, points, planes
This document provides information about engineering graphics and orthographic projections. It begins by introducing projections of points, lines, planes and solids. It then discusses coordinates and quadrants. The majority of the document explains how to draw orthographic projections of various geometric elements including points in different quadrants, straight lines in different orientations, planes in different positions, and solids. It provides examples and step-by-step instructions for creating projections of these elements in first, second, third and fourth quadrants. The document concludes by introducing different types of solids and announcing details about an upcoming exam.
Projection of lines(new)
A line AB is given with information about the positions of ends A and B relative to the principal planes and their distances. The task is to draw the projections of the line and determine its true length and true inclinations to the two principal planes. Additional information may be given such as true length, inclinations, traces etc. Relevant projections are to be drawn and missing information like inclinations are to be calculated.
ppt of EG
This document discusses the projection of straight lines. It defines projection of lines and notes that the top and front views of a straight line are also straight lines. It describes different positions a line can have with respect to the horizontal and vertical planes, including being perpendicular to one plane, parallel to one plane and inclined to both. Notations used for projecting lines are explained. Examples of different line positions are illustrated with diagrams. The concept of traces, where a line intersects the planes, is defined and important points regarding traces are provided.
St line(new)
The document provides information and instructions for drawing orthographic projections of points, lines, planes, and solids. It discusses the key elements needed, including a description of the object, observer location, and object placement relative to the horizontal and vertical planes. Guidelines are given for naming different views in projections using notations like a, a', and a" for the top, front, and side views of a point A. Examples are presented of drawing the projections of a point placed in different quadrants and of lines with different orientations. Methods are described for determining the true length and true inclinations to the planes when given the projections or when given other properties like the true length, inclinations, and object placement.
Projection of-point-and-lines-engineering
Projection of-point-and-lines-engineering with full description.
its use full for engineering students.
Projection of lines
Download the original presentation for animation and clear understanding. This Presentation describes the concepts of Engineering Drawing of VTU Syllabus. However same can also be used for learning drawing concepts. Please write to me for suggestions and criticisms here: hareeshang@gmail.com or visit this website for more details: www.hareeshang.wikifoundry.com.
Projection of planes
The document provides instructions for projecting plane figures by describing their position relative to the horizontal and vertical planes. It explains that problems will give the plane figure and its inclination to the planes. The document outlines the 3 step process: 1) assume initial position, 2) consider surface inclination, 3) consider side/edge inclination. Examples are given of different inclinations and the steps are applied to sample problems.
Projection of points
1. There are four possible positions of a straight line with respect to the two principal planes: parallel to both, perpendicular to one and parallel to the other, inclined to one and parallel to the other, and inclined to both.
2. If a line is parallel to a plane, its projection on that plane is its true length and its projection on the other plane is parallel to the reference line.
3. The document provides an example of a line parallel to the vertical plane, where the front view projection is the true length and the top view is parallel to the reference line.
PROJECTION OF POINT AND LINE
The document describes the process of orthographic projections to draw 2D projections of 3D objects. It defines key terms like object, observer, horizontal plane, vertical plane and the four quadrants formed. It explains how to draw front, top and side views of points and lines placed in different quadrants, and how the views are affected. It provides notations for labeling different views. It then describes in detail the process to draw projections of straight lines placed in different positions, including obtaining their true lengths and inclinations when only limited data is available from the views. Pictorial diagrams are also provided to visualize each case.
Projection of lines
The document discusses the orthographic projections of straight lines. It defines five basic cases of lines: vertical, parallel to both planes, inclined to one plane and parallel to the other, inclined to both planes. It provides pictorial representations of each case and notes about front and top views. The document then presents several example problems demonstrating how to draw the projections of a line given information like its true length, angles of inclination, and positions of its ends. Diagrams illustrate the key steps and parameters involved in the problems.
PROJECTION OF LINES
IT IS VERY USEFUL FOR THOSE WHO ARE IN SEARCH OF PROBLEMS ON PROJECTION OF LINES. THESE SLIDES ARE VERY USEFUL FOR 1ST YEAR ENGINEERNG FOR SUBJECT ENGINEERING GRAPHICS-I .
Engineering Graphics - Projection of points and lines
The document discusses different types of projections of points and lines in space. It describes 9 types of point projections based on their location relative to the horizontal and vertical planes. It then explains the different notations used for projecting lines, including their true length, front view length, top view length, and inclinations. Finally, it presents examples of different cases of projecting lines, including when lines are parallel or inclined to the planes.
Projection of line inclined to both the planes
This document discusses the projection of a line that is inclined to both the horizontal and vertical planes in orthographic projections. It explains that when a line is inclined to the horizontal plane, its length in the vertical plane remains constant and the distance between its end points in the front view remains constant. Similarly, when a line is inclined to the vertical plane, its length in the front view remains constant and the distance between its end points in the top view remains constant. Finally, it concludes that when a line is inclined to both planes, these properties apply simultaneously in the two projections.
Unit ii projection of points
introduction of engineering graphics ,projection of points,lines,planes,solids,section of solids,development of surfaces,isometric projection,perspective projection
Projection of lines step by step process
A line AB is given with end A at 15mm above the HP and 20mm in front of the VP, and end B at 50mm above the HP and 75mm in front of the VP. The distance between the end projectors is 50mm. The projections and true shape of the line are to be drawn, and its true length and true inclinations with the principal planes are to be found.
Ground rules for projection of straight lines
The document lists the basic/Ground rules students should remember while working on projection of straight lines.
More Related Content
What's hot
B.tech i eg u2 loci of point and projection of point and line
1. The document discusses different types of basic locus cases including points moving relative to geometric objects like lines and circles.
2. It also covers oscillating and rotating links, where a point slides along a link that is oscillating or rotating in a plane.
3. Examples and solutions are provided for different locus problems involving points moving to maintain a constant distance from objects like lines, circles, and other points. Diagrams clearly illustrate the solution steps and resulting loci.
Projection of Line
Projection of Line basics, Projection of line parallel to both the planes, projection of line perpendicular to one plane, projection of line inclined to one and both the planes
Orthographic projection EG
The document provides instructions for drawing orthographic projections of points and lines. It defines key terms and concepts used in orthographic projections including quadrants, front view (FV), top view (TV), horizontal plane (HP), and vertical plane (VP). Examples are given of drawing the projections of a point located in different quadrants, as well as different types of lines, such as vertical, parallel, and inclined lines. Guidelines are provided for determining the FV and TV based on whether the object is above or below the HP and in front of or behind the VP. Methods for finding true lengths, angles, and orientations are also described when only FV and TV are given.
projection of straight line and point in engineering drawind
The document provides instructions for drawing orthographic projections of points, lines, and basic solids. It explains that to draw projections, you need information about the object, observer, and object location. Points are used as simple examples, with their front, top, and side views explained. Guidelines are provided for naming different views and standard notations. Projections are demonstrated for a point placed in each of the four quadrants formed by the horizontal and vertical planes. Methods for drawing projections of lines are described, including vertical lines, lines parallel to both planes, and lines at various angles to the planes. Trapezoidal and rotational methods are explained for determining true lengths and angles from given projections.
Projection of-point-and-lines-engineering108.com
The document provides information on orthographic projections of points and lines. It defines front view (FV), top view (TV), and notations used to represent different views. It then demonstrates how to determine the projections of a point placed in different quadrants. Next, it discusses the projections of straight lines in different orientations and illustrates cases where the line is perpendicular, parallel, or inclined to the planes. The document also covers determining the true length, traces (intersections of a line with reference planes), and using the given views to find angles and unknown dimensions. Examples of different projection problems are provided along with step-by-step solutions.
Projection of lines(new)
an useful presentation for all 1st year engineering students who are afraid of the subject : ENGINEERING GRAPHICS
learn, enjoy~
6 projections of lines, points, planes
This document provides information about engineering graphics and orthographic projections. It begins by introducing projections of points, lines, planes and solids. It then discusses coordinates and quadrants. The majority of the document explains how to draw orthographic projections of various geometric elements including points in different quadrants, straight lines in different orientations, planes in different positions, and solids. It provides examples and step-by-step instructions for creating projections of these elements in first, second, third and fourth quadrants. The document concludes by introducing different types of solids and announcing details about an upcoming exam.
Projection of lines(new)
A line AB is given with information about the positions of ends A and B relative to the principal planes and their distances. The task is to draw the projections of the line and determine its true length and true inclinations to the two principal planes. Additional information may be given such as true length, inclinations, traces etc. Relevant projections are to be drawn and missing information like inclinations are to be calculated.
ppt of EG
This document discusses the projection of straight lines. It defines projection of lines and notes that the top and front views of a straight line are also straight lines. It describes different positions a line can have with respect to the horizontal and vertical planes, including being perpendicular to one plane, parallel to one plane and inclined to both. Notations used for projecting lines are explained. Examples of different line positions are illustrated with diagrams. The concept of traces, where a line intersects the planes, is defined and important points regarding traces are provided.
St line(new)
The document provides information and instructions for drawing orthographic projections of points, lines, planes, and solids. It discusses the key elements needed, including a description of the object, observer location, and object placement relative to the horizontal and vertical planes. Guidelines are given for naming different views in projections using notations like a, a', and a" for the top, front, and side views of a point A. Examples are presented of drawing the projections of a point placed in different quadrants and of lines with different orientations. Methods are described for determining the true length and true inclinations to the planes when given the projections or when given other properties like the true length, inclinations, and object placement.
Projection of-point-and-lines-engineering
Projection of-point-and-lines-engineering with full description.
its use full for engineering students.
Projection of lines
Download the original presentation for animation and clear understanding. This Presentation describes the concepts of Engineering Drawing of VTU Syllabus. However same can also be used for learning drawing concepts. Please write to me for suggestions and criticisms here: hareeshang@gmail.com or visit this website for more details: www.hareeshang.wikifoundry.com.
Projection of planes
The document provides instructions for projecting plane figures by describing their position relative to the horizontal and vertical planes. It explains that problems will give the plane figure and its inclination to the planes. The document outlines the 3 step process: 1) assume initial position, 2) consider surface inclination, 3) consider side/edge inclination. Examples are given of different inclinations and the steps are applied to sample problems.
Projection of points
1. There are four possible positions of a straight line with respect to the two principal planes: parallel to both, perpendicular to one and parallel to the other, inclined to one and parallel to the other, and inclined to both.
2. If a line is parallel to a plane, its projection on that plane is its true length and its projection on the other plane is parallel to the reference line.
3. The document provides an example of a line parallel to the vertical plane, where the front view projection is the true length and the top view is parallel to the reference line.
PROJECTION OF POINT AND LINE
The document describes the process of orthographic projections to draw 2D projections of 3D objects. It defines key terms like object, observer, horizontal plane, vertical plane and the four quadrants formed. It explains how to draw front, top and side views of points and lines placed in different quadrants, and how the views are affected. It provides notations for labeling different views. It then describes in detail the process to draw projections of straight lines placed in different positions, including obtaining their true lengths and inclinations when only limited data is available from the views. Pictorial diagrams are also provided to visualize each case.
Projection of lines
The document discusses the orthographic projections of straight lines. It defines five basic cases of lines: vertical, parallel to both planes, inclined to one plane and parallel to the other, inclined to both planes. It provides pictorial representations of each case and notes about front and top views. The document then presents several example problems demonstrating how to draw the projections of a line given information like its true length, angles of inclination, and positions of its ends. Diagrams illustrate the key steps and parameters involved in the problems.
PROJECTION OF LINES
IT IS VERY USEFUL FOR THOSE WHO ARE IN SEARCH OF PROBLEMS ON PROJECTION OF LINES. THESE SLIDES ARE VERY USEFUL FOR 1ST YEAR ENGINEERNG FOR SUBJECT ENGINEERING GRAPHICS-I .
Engineering Graphics - Projection of points and lines
The document discusses different types of projections of points and lines in space. It describes 9 types of point projections based on their location relative to the horizontal and vertical planes. It then explains the different notations used for projecting lines, including their true length, front view length, top view length, and inclinations. Finally, it presents examples of different cases of projecting lines, including when lines are parallel or inclined to the planes.
Projection of line inclined to both the planes
This document discusses the projection of a line that is inclined to both the horizontal and vertical planes in orthographic projections. It explains that when a line is inclined to the horizontal plane, its length in the vertical plane remains constant and the distance between its end points in the front view remains constant. Similarly, when a line is inclined to the vertical plane, its length in the front view remains constant and the distance between its end points in the top view remains constant. Finally, it concludes that when a line is inclined to both planes, these properties apply simultaneously in the two projections.
Unit ii projection of points
introduction of engineering graphics ,projection of points,lines,planes,solids,section of solids,development of surfaces,isometric projection,perspective projection
What's hot (20)
B.tech i eg u2 loci of point and projection of point and line
B.tech i eg u2 loci of point and projection of point and line
projection of straight line and point in engineering drawind
projection of straight line and point in engineering drawind
Engineering Graphics - Projection of points and lines
Engineering Graphics - Projection of points and lines
Viewers also liked
Projection of lines step by step process
A line AB is given with end A at 15mm above the HP and 20mm in front of the VP, and end B at 50mm above the HP and 75mm in front of the VP. The distance between the end projectors is 50mm. The projections and true shape of the line are to be drawn, and its true length and true inclinations with the principal planes are to be found.
Ground rules for projection of straight lines
The document lists the basic/Ground rules students should remember while working on projection of straight lines.
Problem1 Engineering mechanics
Equilibrant and resultant are related concepts in physics. An equilibrant is a force that balances other forces acting on an object so that it is in equilibrium. A resultant is the single force that can replace all of the individual forces acting on an object to produce the same effect.
Eg2 n
1. Orthographic projection is a method of projection where the projectors are perpendicular to the projection plane. This produces projections that maintain accurate dimensions and angular relationships.
2. Projections of objects are not drawn in the second and fourth quadrants to avoid confusion and overlapping of views.
3. Auxiliary planes are any planes other than the horizontal and vertical planes. They are classified as auxiliary vertical planes and auxiliary inclined planes.
Eg unit iii-projection_of_points
The document discusses the projection of points in space onto principal planes. It defines the four quadrants formed by the intersection of horizontal and vertical planes and shows examples of projecting points that lie in each quadrant. It then provides sample problems asking the reader to project various points onto a plane keeping given distances between points and from principal planes.
Projection of points
Download the original presentation for animation and clear understanding. This Presentation describes the concepts of Engineering Drawing of VTU Syllabus. However same can also be used for learning drawing concepts. Please write to me for suggestions and criticisms here: hareeshang@gmail.com or visit this website for more details: www.hareeshang.wikifoundry.com.
Projection of lines
An useful slideshow for all 1st year engineering students, who are afraid of the subject : ENGINEERING GRAPHICS..
learn, enjoy~
Unit 1 engineering curves
The document describes various engineering curves including conic sections, spirals, and cycloids. It provides methods for constructing ellipses, parabolas, and hyperbolas using techniques like concentric circles, rectangles, arcs of circles, and directrix-focus definitions. It also demonstrates drawing tangents and normals to these curves. Additional curves covered include involutes, cycloids, trochoids, spirals, and helices.
Ist year engineering-graphics-ed-for-be-students (1) (1)
1. The document discusses the procedure for solving problems involving the projections of plane figures.
2. It involves a 3 step process of drawing initial projections assuming a position, then adjusting for surface inclination, and finally adjusting for side/edge inclination.
3. Key assumptions are made for the initial position based on whether the surface is parallel or inclined to the horizontal or vertical planes.
BE sem 1 Engineering Graphics(E.G.) full course ppt
In this ppt full course of BE sem 1 E.G. is considered
I'm recommended you to just learn this fully ppt for good marks
Projection of planes
an useful presentation for all those 1st year engineering students who are afraid of ENGINEERING GRAPHICS..
learn, enjoy~
Viewers also liked (12)
Ist year engineering-graphics-ed-for-be-students (1) (1)
Ist year engineering-graphics-ed-for-be-students (1) (1)
BE sem 1 Engineering Graphics(E.G.) full course ppt
BE sem 1 Engineering Graphics(E.G.) full course ppt
Similar to Projection of lines
graphics.pdf
This document provides an overview of engineering graphics. It begins by explaining the relationships between society, engineers, scientists, and technology. It then defines engineering graphics as the art and science of technical drawing, which uses mathematical rules of projection to represent three-dimensional objects in two dimensions. The rest of the document details various drawing tools, line types, dimensioning, projection systems including orthographic and isometric views, and how to project points and different geometric shapes. It also provides guidelines for solving problems involving the projection of solid objects.
Projection of Points.pptx
Orthographic projections are a method of producing dimensioned drawings of 3D objects using a series of 2D views to show the object's length, width, and depth. There are nine types of projections for points in space depending on their location relative to the horizontal and vertical planes. The document provides examples of each type of point projection and conventions for orthographic projection drawings.
Eg projection of plane
Here are the steps to solve this problem:
1. Draw the top view of the rhombus with the longer diagonal horizontal at 100 mm.
2. This top view represents the true shape and size of the square in its top view.
3. Since the top view shows the true shape, the surface of the square must be parallel to the VP.
4. Draw the front view of the square below the top view, with the sides parallel to the XY line and of length 100 mm each.
5. The front view will also show the true shape and size of the square since its surface is parallel to the VP.
Therefore, the front view of the square is another square of side 100 mm, drawn
Engineering garphics projection of lines
The document provides information on orthographic projections including:
- Key terms used in orthographic projections like object, observer, location of object, and quadrants.
- Notations used to label different views of an object.
- Examples of orthographic projections of a point located in different quadrants.
- Basic concepts for drawing projections of a point and straight lines in different orientations.
- Steps to draw projections when given information about the true length, inclinations, and positions of a line.
Projections of planes
A plane is a two dimensional object having length and breadth only. Its thickness is always neglected. Various shapes of plane figures are considered such as square, rectangle, circle, pentagon, hexagon, etc.
There are two types of planes
Perpendicular planes which have their surface perpendicular to any one of the reference planes and parallel or inclined to the other reference plane.
2. Oblique planes which have their surface inclined to both the reference planes.
Projectionofpointsandlines 141103053934-conversion-gate02
The document describes different types of projections of points and lines in space. There are 9 types of point projections depending on whether the point lies in one of the 4 quadrants, or on one of the planes. Line projections can be parallel to two planes and perpendicular to the third, inclined to one plane and parallel to the other, or inclined to both planes. Examples of problems involving drawing the projections of lines in various orientations are presented.
projection of points-engineering graphics
This document discusses the projection of points and lines in space. It begins by introducing the topic and presenters. It then covers the following:
1. The orientation and projection of points in different quadrants and planes. Various examples are shown with diagrams.
2. The definition and notation used for projecting straight lines, including their true length, front and top views, and inclinations.
3. The different positions of lines in relation to the horizontal and vertical planes, including perpendicular, parallel, and oblique lines. Several examples are shown diagrammatically.
CAEG LAB BY RK SIR
1. The document provides information on computer aided engineering graphics including notation conventions, quadrant patterns, orthographic projections of points and lines, and projections of planes and 3D objects.
2. Key concepts covered include first angle and third angle projection methods, determining the front, top, and side views of objects, and how to represent inclined lines and planes through reduced views and rotations of reference planes.
3. Examples are given of orthographic projections for points in different quadrants, straight lines with various orientations, planes with different inclinations, and multi-view projections of 3D objects using both first and third angle methods.
Projections of planes.pptx
The document describes different types of planes based on their orientation relative to reference planes. It provides examples of planes that are perpendicular to both reference planes, perpendicular to one plane and parallel/inclined to the other, and perpendicular to one plane and inclined to the other. Diagrams show how to draw projections of planes in different positions, including determining front and top views. Examples include triangles, rectangles, pentagons, hexagons and circles oriented in various ways relative to horizontal and vertical planes.
Eg 2
The document provides instructions for drawing orthographic projections of points, lines, planes and solids. It defines key terms and concepts needed such as quadrants, front view (FV), top view (TV), horizontal plane (HP) and vertical plane (VP). Examples are given of drawing the projections of a point and straight lines in different positions, including when they are inclined to the HP and/or VP. Methods are outlined for determining true length, angles and orientations based on the given views. Notations and a diagram of relationships between important parameters are also explained.
Lect 1.point
The document provides instructions for drawing orthographic projections of points and lines. It defines key terms and concepts used in orthographic projections including quadrants, front view (FV), top view (TV), horizontal plane (HP), and vertical plane (VP). Examples are given of drawing the projections of a point located in different quadrants, as well as different types of lines, such as vertical, parallel, and inclined lines. Guidelines are provided for determining the FV and TV based on whether the object is above or below the HP and in front of or behind the VP. Methods for finding true lengths, angles, and orientations are also described when only FV and TV are given.
Projectionoflines(thedirectdata[1].com)
This document provides instructions for drawing orthographic projections of points, lines, planes and solids. It explains key concepts like quadrants, front view (FV), top view (TV), true length, inclination angles and more. Examples are given of drawing projections of a point and various types of lines (vertical, parallel, inclined) placed in different quadrants. The document establishes important parameters and notation for solving projection problems, including true length, angles of inclination, view lengths and positions of endpoints. Sample problems are worked through applying these concepts and parameters to draw projections when given information like dimensions, inclinations and endpoint positions.
projection of point ppt.pptx
1. The document discusses the concept of projections of points and lines. It explains how to project a point or line in different quadrants and cases such as when the point is above or below the horizontal plane.
2. The theory of projections using auxiliary planes like the auxiliary vertical plane and auxiliary inclined plane is explained. This allows projecting points and lines when their true lengths and inclinations are known.
3. The key concepts of projecting lines such as true length, traces, projections of lines parallel or perpendicular to reference planes, and lines inclined to both planes are covered. Methods to solve related problems are also provided.
Projections of Line mechanical engineering and .ppt
The document discusses the projection of straight lines in engineering graphics. It describes 7 simple cases of lines: 1) vertical and parallel to HP and VP, 2) vertical and parallel to VP and HP, 3) parallel to both HP and VP, 4) inclined to HP and parallel to VP, 5) inclined to VP and parallel to HP, 6) in the VP, and 7) in the HP. For each case, it provides example problems to draw the front and top view projections of a given line, including locating the trace. The document emphasizes determining the length, position relative to planes, and inclinations of a line to draw its projections.
Projection of planes
The document provides information on the projection of plane figures:
1) It explains the basics of plane projection problems, including what is typically given (projections of the plane) and asked for (its position relative to reference planes).
2) Plane figures can have their surface parallel or inclined to the horizontal or vertical planes, and edges parallel or inclined to the other reference plane. The document demonstrates solving problems through 3 steps of initial positioning, surface inclination, and edge inclination.
3) Several example problems are worked through step-by-step to show determining the front, top, and side views of planes in different orientations, such as a pentagon inclined to the horizontal plane and a side to the vertical plane
Projections unit 3
The document discusses orthographic projections and projections of solids. It defines orthographic projections as a method of representing the shape of a 3D object on a 2D surface using multiple views. It describes the principal planes used - horizontal plane, vertical frontal plane, and profile plane. It also discusses the first angle and third angle methods of projection. The document then defines different types of solids like polyhedra and solids of revolution. It describes various polyhedra like prisms, pyramids, and their types. It also defines solids of revolution like cylinders, cones, spheres. Important terms used in projections of solids like edges, generators, apex, and axis are also explained.
Similar to Projection of lines (17)
Projectionofpointsandlines 141103053934-conversion-gate02
Projectionofpointsandlines 141103053934-conversion-gate02
Points_and_Lines_158091810020921014035e3ae5547e8d4.pptx
Points_and_Lines_158091810020921014035e3ae5547e8d4.pptx
Projections of Line mechanical engineering and .ppt
Projections of Line mechanical engineering and .ppt
More from student
Logic Gates
This document discusses different types of logic families used in integrated circuits. It describes bipolar logic families like RTL, DCTL, IIL, DTL, HTL and TTL which can operate in saturated or non-saturated modes. MOS logic families including PMOS, NMOS and CMOS which use only MOSFET devices are also discussed. The key characteristics of logic families like propagation delay, power dissipation, noise immunity and operating temperature are summarized. Specific bipolar and MOS logic gates like TTL NAND, CMOS inverter, and CMOS NAND, AND, NOR and OR gates are illustrated.
Flipflops and Excitation tables of flipflops
This document discusses latches and flip-flops. It explains that gates perform logic operations while flip-flops can store binary values. There are two types of sequential logic circuits: combinational using gates and sequential using flip-flops like the SR, D, JK, and T flip-flops. Flip-flops change state based on clock pulses in synchronous circuits or independent of clocks in asynchronous circuits.
Number Systems
The document discusses different number systems including binary, decimal, octal and hexadecimal. It explains the basics of each system such as their base and symbols used. Techniques for converting between the different number systems are also presented using examples like dividing or multiplying by the base to determine place values in the target system. An exercise at the end has examples of converting values between decimal, binary, octal and hexadecimal formats.
towers of hanoi
The document describes the Towers of Hanoi puzzle and its algorithmic solution. It involves moving disks of different sizes on three rods according to rules: only one disk can be moved at a time and no disk may be placed on top of a smaller disk. The algorithm recursively moves the disks by transferring the top n-1 disks, moving the largest disk, and then transferring the remaining n-1 disks.
header, circular and two way linked lists
This document discusses different types of linked lists including header linked lists, circular header linked lists, grounded header linked lists, two-way linked lists, and provides algorithms for traversing, searching, inserting, and deleting nodes from circular header and two-way linked lists. Header linked lists contain a special header node and can be circular or grounded. Circular header linked lists have the last node point to the header node, while grounded lists have the last node point to null. Two-way lists contain forward and backward pointers to traverse in both directions. Algorithms for traversing, searching, and modifying nodes in circular header and two-way lists are presented.
Arrays Data Structure
This document discusses linear arrays and algorithms for common operations on arrays such as traversing, inserting, deleting, and sorting elements. It defines a linear array as a list of homogeneous data elements with a lower and upper bound. Algorithms provided include traversing from the lower to upper bound, inserting an element at a specified position by shifting other elements and incrementing the size, deleting an element by shifting elements and decrementing the size, and sorting an array using bubble sort by making multiple passes to swap adjacent elements in descending order.
Number Systems
The document discusses different number systems including binary, decimal, octal and hexadecimal. It explains the basics of each system such as their base and symbols used. Conversion techniques between the different number systems are also presented using examples like dividing or multiplying by the base to determine place values in the target system. An exercise at the end tests conversions between decimal, binary, octal and hexadecimal representations of numbers.
binary arithmetic rules
The document discusses various binary operations - addition, subtraction, multiplication, and division. It also covers 1's complement and 2's complement representations of signed binary numbers. Some key points covered include:
- Binary addition and subtraction use carry/borrow bits
- Multiplication is done by ANDing corresponding bits, division gives the quotient bit
- 1's complement is obtained by flipping all bits, 2's complement adds 1 to the 1's complement
- Subtraction can be performed using addition with 1's or 2's complement representations
- Signed numbers can be represented in sign-magnitude, 1's complement, or 2's complement forms.
BCD,GRAY and EXCESS 3 codes
Weighted codes assign a positional weight or value to each digit, where the sum of the digit values multiplied by their weights represents the number. Non-weighted codes do not assign positional weights. BCD is a weighted 4-bit code that represents the decimal digits 0-9. It uses weights of 24, 23, 22, 21 from most to least significant bit. The Gray code is a non-weighted code where each number differs from the previous by one bit. Excess-3 code is a non-weighted 4-bit BCD code where 3 is added to each decimal digit before conversion to BCD.
animals colours numbers idioms
This document provides examples of common idioms related to different topics such as colours, numbers, and animals. Some examples include "in the black" meaning financially sound, "at sixes and sevens" meaning in a state of confusion, and "as innocent as a lamb" meaning having no guilt or being naive. A variety of idioms are explained that involve descriptive phrases associated with different subjects.
irregular verbs
This document contains two lists:
1) A list of common irregular verbs in English along with their past simple and past participle forms.
2) A list of over 600 regular verbs in English.
dc generator ece
1) A DC generator produces direct current through electromagnetic induction. When a conductor moves through a magnetic field, an electromotive force (EMF) is induced in the conductor.
2) The basic components of a DC generator are magnetic poles and conductors that rotate within the magnetic field.
3) In a single loop DC generator, an EMF is induced in the sides of a rotating rectangular conductor loop as it cuts through the magnetic flux lines. The loop is connected to brushes to output a direct current.
INDUCTION MOTOR
- DC generators and motors operate using the principle of electromagnetic induction. When a conductor moves through a magnetic field, an electromotive force (emf) is induced in the conductor.
- The basic components of a DC generator are a magnetic field (produced by poles and field windings) and a conductor (armature) that rotates within the magnetic field. This motion induces an emf in the armature.
- A commutator is used to convert the alternating current from the armature into direct current that can be supplied to a load. Brushes make contact with the commutator segments to carry the output current.
structure and union
- A structure is a user-defined data type that groups logically related data items of different data types into a single unit. Structures allow related data to be accessed and managed together.
- Structures can contain nested structures as members. Nested structure members are accessed using two period operators (e.g. e1.doj.day).
- Structures can be passed to functions as parameters and returned from functions. Pointers to structures are declared and accessed using arrow (->) operator instead of period operator.
- A union shares the same memory space for multiple data types, allocating only enough space for its largest member. Unions allow different types to share the same memory location.
storage class
The document discusses the different storage classes in C - automatic, register, static, and external. Each storage class determines where a variable is stored (memory or registers), its initial value, scope, and lifetime. The automatic class is the default, and variables have local scope and are reinitialized each time a block is entered. The register class stores variables in CPU registers for faster access but variables behave like automatic. The static class retains variable values between function calls, and external makes variables global and accessible throughout a program.
file handling1
The document discusses file handling in C programming. It explains that files allow permanent storage of data that can be accessed quickly through library functions. There are two main types of files - sequential and random access. It also describes various functions used to open, read, write, close and manipulate files like fopen(), fread(), fwrite(), fclose() etc. It provides examples of reading from and writing to text and binary files as well as reading and writing structures and integers from files.
optics chapter_07_solution_manual
This document contains problems related to simple harmonic motion, forced vibrations, and the origin of refractive index. Problem 7.1 asks the reader to plot the displacement of a string at various points over time given an equation describing the wave. Problem 7.2 asks the reader to analyze the time variation of displacement in loops of a standing wave given another equation. Problem 7.3 asks the reader to show that a mass dropped in a tunnel through the earth would execute simple harmonic motion and calculate the time period. The remaining problems involve calculating various properties related to simple harmonic motion, polarization, dielectric constants, plasma frequencies, and refractive indices.
dyneins and kinesins
Kinesins and dyneins are motor proteins that move along microtubules. Kinesins move cargo from the center of the cell to its periphery by moving toward the plus end of microtubules. Dyneins move cargo from the periphery to the center by moving toward the minus end of microtubules. Both use ATP hydrolysis to power their movement in 8 nm steps along microtubules in opposite directions. Dyneins are also responsible for the bending movement of cilia and flagella by generating force between adjacent microtubule doublets.
More from student (20)
Projection of lines
- 1. ASSIGNMENT (to be submitted on 22nd Oct 2010, Friday) 1. Page 2 – Problem 4 (pentagon) – TYPE 1a 2. Page 2 – Problem 5 (square) – TYPE 1a 3. Page 3 – Problem 7 (rectangle) – TYPE 2a (find angle of inclination with V.P.) 4. University questions – No. 7 (circle) – TYPE 1b2 (find angle of inclination with H.P.) 5. University questions – No. 9 (hexagon) – TYPE 2a
- 2. PROJECTION OF LINES Engineering Graphics I Year - CSE
- 3. Line parallel to HP and VP True length VP HP Distance above HP Distance in front of VP a’ b1’ b1 a True length
- 4. Locus of a’ Locus of a True length Top view length VP HP Distance above HP Distance in front of VP True inclination with HP a’ b1’ b1 a Line inclined to HP and parallel to VP
- 5. Locus of a’ Locus of a Truelength VP HP Distance above HP Distance in front of VP True inclination with HP a’ b1’ a Line perpendicular to HP , b1
- 6. Locus of a’ Locus of a VP HP Distance above HP Distance in front of VP a’ True length True inclination with VP b1 a Front view length b1’ Line inclined to VP and parallel to HP
- 7. TYPE - I Locus of one end point True length True inclinations with VP and HP Line inclined to both VP and HP
- 8. Apparent inclination with HP Locus of a’ Locus of b’ Locus of a Locus of b True length True length Front view length VP HP Distance above HP Apparent inclination with VP True inclination with VP True inclination with HP a’ b1’ b1 aDistance in front of VP Top view length Frontview length b2’ Topviewlength b2 Distance between end projectors
- 9. TYPE - II Locus of two end points True length Line inclined to both VP and HP
- 10. Apparent inclination with HP Locus of a’ Locus of b’ Locus of a Locus of b True length True length Front view length VP HP Apparent inclination with VP True inclination with VP a’ b1’ b1 a Top view length Frontview length b2’ Topviewlength b2 Distance between end projectors Distances above HP Distances in front of VP True inclination with HP
- 11. Apparent inclination with HP Locus of b’ Locus of a’ Locus of a Locus of b True length True length Front view length VP HP Apparent inclination with VP True inclination with VP a’ b1’ b1 a Top view length Frontview lengthTopviewlength b2 Distance between end projectors Distances above HP Distances in front of VP True inclination with HP b2’
- 12. TYPE - III True length Top and front view of ONE end point Top/front view of OTHER end point Length of Top/front view Line inclined to both VP and HP
- 13. Apparent inclination with HP Locus of a’ Locus of b’ Locus of b Locus of a True length True length Front view length VP HP Apparent inclination with VP True inclination with VP a’ b1’ b1 a Top view length Frontview length b2’ Topviewlength b2 Distance between end projectors Distance above HP Distances in front of VP True inclination with HP
- 14. TYPE - IV True length Top and front view of ONE end point Length of top AND front views Line inclined to both VP and HP
- 15. Apparent inclination with HP Locus of a’ Locus of b’ Locus of a Locus of b True length Front view length VP HP Distance above HP Apparent inclination with VP True inclination with VP True inclination with HP a’ b1’ b1 aDistance in front of VP Top view length Frontview length b2’ Topviewlength b2 Distance between end projectors True length
- 16. TYPE - V Distance between end projectors Line inclined to both VP and HP
- 17. Apparent inclination with HP Locus of a’ Locus of b’ Locus of a Locus of b True length Front view length VP HP Distances above HP Apparent inclination with VP True inclination with VP True inclination with HP a’ b1’ b1 aDistance in front of VP Top view length Frontview length b2’ Topviewlength b2 Distance between end projectors True length
- 18. TYPE - VI One end point in H.P. and the other in V.P. Line inclined to both VP and HP
- 19. Apparent inclination with HP Locus of b’ Locus of a True length True length Front view length VP HP Apparent inclination with VP True inclination with VP a1 Top view length Frontview length b2’ Topviewlength True inclination with HP a2 b1’ Locus of a’ Locus of b
- 20. Locus of a’ Locus of b’ Locus of b Locus of a VP HPa1’ Frontview length b2’ Topviewlength a2 b Distance between end projectors
- 21. TYPE - VII Mid-point problem Line inclined to both VP and HP
- 22. Apparent inclination with HP Locus of a’ Locus of b’ Locus of a Locus of b TL/2 Front view length VP HP Distance above HP Apparent inclination with VP True inclination with VP True inclination with HP a1’ b1’ b1 a1 Distance in front of VP Top view length Frontview length b2’ Topviewlength b2 Locus of m’ Locus of m TL/2 TL/2 TL/2 a2 m m’ a2’ Distance between end projectors
- 23. THE END