SHADOW OF PYRAMID

The edge of the AED pyramid is in its own shadow. The edges separating the illuminated and darkened edges form the contour of their own shadow. To build the contour of the falling shadow, you need to build the shadow edges of the AD and AU . Since the base of the pyramid is located on a horizontal plane, to build shadow edges it is enough to find the real and imaginary shadows of point A.

Building your own and falling shadows of the pyramid is reduced to defining your own and falling shadows of the faces - flat geometric objects.

In its own shadow is one facet of the ABD pyramid. Therefore, the falling shadow of the parallelepiped will be the falling shadow of this face.

The face is a triangle of general position with respect to the planes of the projections. Side B D lies on the horizontal plane of the projections, i.e. coincides with its shadow. To find the shadows of the segments AB and HELL, it is required to construct a falling real and imaginary shadows of point A.