ComputingMathematicsVisualizationComputational GeometryComputer GraphicsGeometryGeometric ConstructionsGeometric RepresentationGeometry ProcessingGraphical RepresentationLine DrawingShape RepresentationVisualization Of Solid Objects
A method of describing pictures is introduced. The equations, which describe the appearance of a picture, also form a purely functional program which can be used to compute the set of lines necessary to plot the picture on a graphical device. The method is illustrated by using it to describe the structure of one of the woodcuts of Maurits Escher.