Orthographic Projection “COPY”. Representational drawing and sketching: Is concerned with...
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Transcript of Orthographic Projection “COPY”. Representational drawing and sketching: Is concerned with...
![Page 1: Orthographic Projection “COPY”. Representational drawing and sketching: Is concerned with "drawing what you see," or "drawing that which you imagine as.](https://reader036.fdocuments.us/reader036/viewer/2022082518/5697bfee1a28abf838cb9a3e/html5/thumbnails/1.jpg)
Orthographic Projection
“COPY”
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Representational drawing and sketching:
• Is concerned with "drawing what you see," or "drawing that which you imagine as if you actually saw it."
• *(Sketch of garden shed)
“COPY”
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Technical drawing:
• Is concerned with representing objects according to drawings that allow for:
Size, proportions, and structure - as well as appearance - to be shown.
• The most basic concept involved is the geometry of "projection."
“COPY”
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• An orthographic projection drawing - since it is a "flattened single view" of a (3-D) 3 dimensional object - is an "exactly sized" representation of the real object on a 2 dimensional surface (paper) AS SEEN IN THAT VIEW.
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** Name these views: (6)
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*This process is called orthographic ("true drawing")
projection.
“COPY”
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*It also works in reverse: “Don’t copy”
• a) If you correctly draw the individual views
• b) Fold them all up into a box with 90 degree corners
• c) Then project the corners of each drawing into the middle of the box the intersections of those lines will define the 3 dimensional object.
![Page 8: Orthographic Projection “COPY”. Representational drawing and sketching: Is concerned with "drawing what you see," or "drawing that which you imagine as.](https://reader036.fdocuments.us/reader036/viewer/2022082518/5697bfee1a28abf838cb9a3e/html5/thumbnails/8.jpg)
Proper Blocking Format“Copy”
Top View
Front View
Side View
Line of Deflection
Isometric DrawingsOrthographic Projections
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Garden Sheds
• On a full size piece of white paper
• Reproduce a 3D Isometric Drawing
• Extract as much detail as possible
• Landscape included
• Draw the 3 OP’s
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OP 1 - 10
• Use the 3D isometric object to produce the 3 OPs (top, front, side)
• Use the grid system to keep all sizes and proportions correct.