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BAS Basic principles of linear perspective
45 Construction of a cube in 45 perspective
ERR The control of error
6 other sections not shown
Bisect the distance Complete the cube cube by drawing cube in three-point depth desired distance diagonal plane diagonal vanishing point distortion draftsman draw a cube Draw a horizon Draw lines Draw perspective lines drawing the diagonals drawn ellipse guide error eye level freehand drawing grid squares height horizon and place horizontal square hypotenuse intersect line from VP-L line of sight lineaid LS equals mechanical perspective methods for drawing midpoint minor axis multiplied nearest angle oblique perspective observer observer's line original cube parallel perspective perspective circle perspective cube perspective drawing perspective square perspective systems perspective view place two vanishing plan view points to locate rectilinear form right angle side view spective square in 45 square in parallel station point tangent three-point perspective top plan system top view trained eye True scale two-point perspective vanishing point DVP vanishing points VP-L vergence vertical convergence vertical measuring line vista VP-L and VP-R width