Patent ID: 7055259

Claim:
A template set for drawing a view of a three-dimensional shape, the view having solid lines representing the contour and visible edges of the shape, the template set comprising: a first template having at least one first aperture, each said at least one first aperture having a periphery circumscribing an area, the periphery representing the contour of a two-dimensional projection of a three-dimensional shape to be drawn, and a second template having at least one set of linear apertures falling with the area of a respective one of said at least one first aperture in the first template, each said set of linear apertures comprising at least one substantially continuous linear aperture corresponding to a visible edge of the three-dimensional shape to be drawn, whereby, a view of the tree-dimensional shape can be drawn by using said at least one first aperture in the first template to draw the contour of the two-dimensional projection of the three-dimensional shape, aligning the corresponding set of linear apertures of the second template within the contour, and using the at least one continuous linear aperture to draw at least one solid line representing at least one visible edge of the three-dimensional shape.