![]() ![]() The abstraction of a drawing arises from the fact that while every worldly thing manifests itself in (at least ) three dimensions, a drawing can only host two, and so something must be done with that third one. The datum may be mean sea level, but more likely in the present day the datum is a geodetic reference.Įach contour line represents an interval of vertical elevation, or height, and the spacing of the lines represent the steepness or gentleness (or flatness) of sloping land.Īny drawing or map is an abstraction of the three dimensional world in which we live, and some are more abstract than others. The conceptual beauty comes from the contour line itself.Ī contour is a line, very often curved, that is shown on a topography plan connecting points of equal height as related to a datum. ![]() ![]() The literal beauty stems from the shapes that can seem to pop off the page and the color combinations that some maps are created with. They are not only informative, but also quite beautiful, both literally and conceptually. Have you seen maps covered with swirling, curly lines and wondered what that’s all about? Contour maps are two-dimensional maps or surveys or site plan drawings that are imbued with elevation information through the expression of those lines curving and swirling in spaced proximity to each other. ![]()
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