|Courtesy of www.Piet-Mondrian.org|
Further, for all their constrictive geometrical parameters - strict rectilinearity and perpendicularity - the works are full of deviations from geometrical regularity that suggest refinements of balance. The "planes" may be strictly rectangular and strictly oriented in the vertical and horizontal, but they almost always deviate from any simple proportionality. With rare exceptions what may appear squares are not in fact equal-sided. A given shape is almost never exactly repeated in a work and the large rectangles are almost never exact multiples of the smaller ones. Diagonals of the rectangles almost never carry on to the corners of other rectangles or to the corners of the support. Nothing ever stands precisely centered in the center. Further, the planes may be enclosed on all sides by the black lines or only on two or three, the free edges being bounded only by the edge of the canvas. Particularly when the canvas edge is raised above the frame, such a plane seems less confined, its comparative freedom seeming still stronger when the canvas is a diamond-shaped "lozenge," the edges of which necessarily cut the planes at a 45 degree angle.