Perspective drawing is a drawing technique used to portray objects in 3 dimensions or 3D. The perspective drawing method is commonly used for drawing buildings and other such structures in 3 dimensions so that it shows greater detail.
photo source : http://www.how-to-draw-and-paint.com/perspective-drawing.html
info source : http://www.netstarter.com.au/Content_Common/pg-perspective-drawings.seo
Isometric Drawing:
Isometric drawings are 3D
drawings. They show three sides, all in dimensional proportion, but none are shown as a true shape with 90 degree corners. All the vertical lines are drawn vertically but all horizontal lines are drawn at 30 degrees to the base line. Isometric is an easy method of drawing 3D images.
info source : http://toolboxes.flexiblelearning.net.au/demosites/series9/905/2_draw/draw_t3/htm/draw3_2_2.htm
Oblique Drawing:
Oblique drawings are designed to show a three dimensional view of an object. It is a kind of a drawing that shows one face of the object in true shape, but the other faces on a distorted angle. Oblique is not really a '3D'
system but a 2 dimensional view of an object with 'forced depth'.
picture source:http://chestofbooks.com/architecture/Cyclopedia-Carpentry-Building-4-6/Plate-XIII-Isometric-And-Oblique-Projection.html
system but a 2 dimensional view of an object with 'forced depth'.
picture source:http://chestofbooks.com/architecture/Cyclopedia-Carpentry-Building-4-6/Plate-XIII-Isometric-And-Oblique-Projection.html
info source: http://wiki.answers.com/Q/What_is_an_oblique_drawing
Orthographic Drawing:
Orthographic drawing is a way of communicating information about physical objects. An orthographic view is only one side.
photo source:http://www.tpub.com/steelworker1/28.htm
info source: http://www.cdli.ca/depted/g7/ortho.htm
a little bit extra.... here's a website for a perspective interactive game :D
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks1/art/perspective/index.htm
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