It draws topologically correct contours on the sides (interface) of the cubes.
He was surprised how fresh was his memory of every questioned detail, at the ease with which his hand drew the mountains and contours of that unknown country.
Charcoal is a venerable medium, but it is usually used for preparatory steps or for a style that involves drawing contours and shading in.
Oramics (1957) by Daphne Oram - hand drawn contours on a set of ten sprocketed synchronized strips of 35 film were used to control various parameters of monophonic sound generator (frequency, timbre, amplitude and duration).
Dirzo (1982b) used trend-surface analysis to draw contours of mollusc density (see Fig. 16.8) and added some further information from visual inspection of the field.
To make this series, Warhol appropriated pre-existing photographs of wildlife, enlarged them, then manipulated each with bold and uncharacteristic colors, which were enhanced further with vividly drawn contours.
But, yes, once I've drawn facial contours using the markers, I'll choose features from the program's database, find the best fit, and paste them in.
Marshall raised the question of how one could go about drawing financial-value contours on a portfolio grid.