Difference between Isometric, Oblique and Orthographic Drawing.

Isometric Drawings:sited from:http://www.bbc.co.uk/schools/gcsebitesize/design/images/dt_g_dmi_tp6.gif

A form of three-dimensional projection in which all of the principal planes are drawn parallel to corresponding established axes and at true dimensions; horizontals usually are drawn at 30° from the normal horizontal axes; verticals remain parallel to the normal vertical axis.

Sited from:http://wiki.answers.com/Q/What_is_isometric_drawing

Oblique Drawings:

photo from:http://www.ider.herts.ac.uk/school/courseware/graphics/images/oblique.gif

Oblique drawings are designed to show a three dimensional view of an object. It is a kind of a drawing that show

s 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'.

sited from:http://wiki.answers.com/Q/What_is_an_oblique_drawing

Orthographic Drawings:

photofrom:http://www.bbc.co.uk/schools/gcsebitesize/design/images/dt_g_dmi_tp9.gif

A drawing that communicates the shape and size of an object through a series of related two-dimensional views.

sited from:http://wiki.answers.com/Q/What_is_an_orthographic_drawing