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A drawing which contains views of an object projected onto two or more orthographic planes. A heavy solid line used on a drawing to represent the outline of an object. A method of representing three-dimensional objects on a plane having only length and breadth. Also referred to as Right Angle Projection.
What is a drawing which contains views of an object projected onto two or more orthographic planes?
IED Section 1.2 Vocabulary A B Multiview Drawings Views of an object projected onto two or more orthographic planes. Object Line A heavy solid line used on a drawing to represent the outline of an object.
What drawings show the object as it would appear to a person looking directly at the object?
Complex designs require a three view orthographic drawing. Show the object as it would appear to a person looking directly at the object. They are commonly used to communicate designs to people who do not understand or use orthographic drawings.
What is an imaginary line that is used to locate or project the corners edges and features of a three-dimensional object onto an imaginary two-dimensional surface?
Term Definition Projection Line An imaginary line that is used to locate or project the corners, edges, and features of a three-dimensional object onto an imaginary two-dimensional surface. Projection Plane An imaginary surface between the object and the observer on which the view of the object is projected and drawn.
What is a method of representing three-dimensional objects on a plane having only length and breadth?
Orthographic Projection A method of representing three-dimensional objects on a plane having only length and breadth.
What is orthographic drawing?
An orthographic drawing represents a three-dimensional object using several two-dimensional views of the object. It is also known as an orthographic projection. For example, you can see in this image the front, top and side views of an aircraft.
Is a method of representing three dimensions?
orthographic projection, common method of representing three-dimensional objects, usually by three two-dimensional drawings in each of which the object is viewed along parallel lines that are perpendicular to the plane of the drawing.
What is a projection in engineering drawing?
Projection. Projection is defined as a geometrically represented image (visual image or figure) of an object obtained on a surface or plane.
What are the 3 views of isometric drawing?
You may be wondering about the three views that are hidden. They are called the Bottom View, the Left Side View, and the Rear View. Can you determine where they go? The next drawing shows the relationship of isometric surfaces to the views in orthographic drawings.
What type of projection is used on drawings in the United States?
Orthographic Representation Third angle projection (figure 1.2) is used mainly in The United States and Canada whilst first angle projection (figure 1.1) is used mainly throughout Europe and the rest of the world. Both first and third angle projection have equal status and are approved internationally.
What is the name of the lines that are lightly drawn from the front view into the other views to show where to draw next?
Construction lines are lightly drawn lines that guide the creation and drawing of other lines and shapes. Object lines indicate the edges of the object being represented.
What is multi view sketching?
A multiview drawing is one that shows two or more two-dimensional views of a three-dimensional object. Multiview drawings provide the shape description of an object. When combined with dimensions, multiview drawings serve as the main form of communication between designers and manufacturers.
What is an object line?
A visible line, or object line is a thick continuous line, used to outline the visible edges or contours of an object. Hidden Line. A hidden line, also known as a hidden object line is a medium weight line, made of short dashes about 1/8” long with 1/16”gaps, to show edges, surfaces and corners which cannot be seen.
In which projection method does the plane of projection lie between the observer and the object?
Third Angle Projection Method The plane of projection lies between the observer and the object. The plane of projection is assumed to be non- transparent.
What is the name of a method of representing three-dimensional objects as two dimensional drawings?
Orthographic projection (sometimes referred to as orthogonal projection, used to be called analemma) is a means of representing three-dimensional objects in two dimensions.
What are the three planes of projections used in orthographic drawing?
These are Top View, Front View, and Side View. If the plane is kept in a vertical position, then it is called the vertical plane. If the plane is kept in a horizontal position, then it is called the horizontal plane.
What is oblique sketch?
Oblique sketch is an easy and efficient technique of representing an object in pictorial form. Oblique sketch definition states that it is a method of representing a three-dimensional object with a three-dimensional view on a two-dimensional plane surface.
Is orthographic a projection?
An orthographic projection is a way of representing a 3D object by using several 2D views of the object. Orthographic drawings are also known as multiviews. The most commonly used views are top, front, and right side.
What are the 3 regular views of an object?
An orthographic projection normally contains three views of the object: the front view in the lower left corner, the top view in the upper left corner, and the right side view in the lower right corner.
What are projection methods?
A projection method is a general strategy of approximating a true, but unknown, function by a finite number of approximating functions. That is, the true solution is approximated by a finite combination of simple, known functions.
How do you draw an isometric view?
Using the ruler, draw a vertical line on the page, and mark three equally spaced points along it. Draw a horizontal line through the lowest point, and using the protractor, mark out a 30 degree angle up from the line on either side. Draw a line back through the lowest point from the 30 degree angle on each side.
What is projection view in drawing?
A projection view is an orthographic projection of another view’s geometry along a horizontal or vertical direction. Projection views are placed in projection channels, above, below or to the right or left of the parent view. 1. Open a drawing. A box appears over the parent view, representing the projection.
Which types are projection?
6.4. 2 Types of Projection 6.4. 2.1 Perspective projection. 6.4. 2.2 Orthographic projection. 6.4.2.3 Fisheye projection. This is a spherical projection. 6.4. 2.4 Ultra wide angle projection. 6.4. 2.5 Omnimax projection. 6.4. 2.6 Panoramic projection. 6.4. 2.7 Cylindrical projection. 6.4. 2.8 Spherical projection.
