Three-dimensional drawing of an object, such as a building, in which the floor plan provides the basis for the visible elevations, thus creating a diagram that is true to scale but incorrect in terms of perspective. Vertical lines are projected up from the plan at the same scale; the usual angle of projection is 45°. An isometric projection is a slightly flattened variation.
White symbolizes justice and the promise of the future. Blue stands for prosperity. Red represents unity and purpose and the blood shed during the struggle for freedom. Effective date: 4 December 1975.