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Pictorial vs. 3-View. In Drafting and CAD there are two forms of drawing that are used more commonly than any other forms to get the message of size, shape, locations and dimensions of a part. These two forms are called 3-View and orthographic drawing. Pictorial. - PowerPoint PPT Presentation
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Pictorialvs.
3-ViewIn Drafting and CAD there are two forms of drawing that are
used more commonly than any other forms to get the message of size, shape, locations and dimensions of a part.
These two forms are called 3-View and orthographic drawing
Pictorial• Pictorial drawing is a
type of drawing when the drawing looks like a picture. In drafting the most common form of pictoral drawing is isometric when lines are drawn isometricly or 30, 60 90 degrees.
Picture to Isometric
Pictorial Drawing
• There are many form of pictorial drawing to get a desired look or effect.
• One thing to remember is that in pictorial drawing actual (true) measurements are only along isometric lines called axis.
Measurements
Isometric or Pictorial
How to Draw
Y Axis
Isometric Drawing
Front
Top
RightSide
VIEWS
DimensionsIsometric Drawing
Height
Width Depth
D W
H H
W D
Principleof
3 View Drawing
• Most common form of drawing particular sides of a project
3-View Drawing
• Three view drawing shows an object in three view with all views true to shape as if looking at the object straight on.
FrontView
Three Views
Front
Top
RightSide
OrthographicProjection
• Three View Drawing is also called Orthographic Projection
• Ortho-straight lines or right angles• Graphic-to draw• Pro-forward• Jacere (jection)-to throw
Line of Projection45 degrees
Right angles
Straight lines
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