Language of Sketching © 2011 Project Lead The Way, Inc.Design and Modeling.

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Presentation transcript:

Language of Sketching © 2011 Project Lead The Way, Inc.Design and Modeling

Pictorial Drawing 2D illustration of a 3D object Shows three faces of an object in one view Provides a realistic view of an object Types of drawings IsometricPerspective

Isometric Pictorial Isometric means equal measure. Three adjacent faces on a cube will share a single point Edges converge at one point will appear as 120 degree angles or 30 degrees from the horizon line

Isometric Pictorial These three edges represent height, width, and depth depth width height

Isometric Sketch Example

Isometric Sketch Historical Example Earl Silas Tupper ( ) invented an air- tight Tupper Seal in 1947 Patent drawings of bowl and cover, 1957 (isometric pictorial) Courtesy Smithsonian Institute:

Perspective Drawings A perspective drawing offers the most realistic three-dimensional view of all the pictorial methods, because it portrays the object in a manner that is most similar to how the human eye perceives the visual world.

Perspective Drawings

One-Point Perspective The one-point perspective is relatively simple to make, but is somewhat awkward in appearance when compared to other types of pictorials. A horizontal line represents the horizon. One vanishing point is identified on the horizon line. A series of lines are drawn from distinctive points on the object to the vanishing point, outlining the object being constructed.

One-Point Perspective Example Vanishing Point Horizon Line

Two-Point Perspective The two-point perspective is the most common perspective drawing. A step-by-step procedure will be explained for the perspective.

Two-Point Perspective Example Horizon Line Vanishing Point 1Vanishing Point 2

Multi-view (Orthographic) Drawing Shows two or more two-dimensional views of a three-dimensional object. Provides the shape description of an object. When combined with dimensions, serves as the main form of communication between designers and manufacturers.

Multi-view Drawing Isometric View

Example of Multi-view Sketch LEFT SIDE RIGHT SIDE FRONT Dining Chair

References Tupper, Earl Silas. Patent drawings, Smithsonian Institute: