Perspective, a series of elementary lectures (1899)
Cone, Ada · New York, W.T. Comstock · leaf 58
seen that the point of meeting is opposite the centre of the circles, and will fall in the line of the short diameters produced. In the flower this intersection occurs in the stem, which is always a prolongation of the short diameters. If it is desired to draw ellipses a deflnite distance apart, it… … is smaller, its size and position are set off in the nearest edge of the square in whose plane it is to be drawn, as C. D. Vanishing lines from the points thus made, crossing the diagonals of the square will give its per¬ spective position and size. Construction lines show the fundamental form of…
Perspective · Drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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