Definition: profile curve (Applicable from 81-271, 81-272, 81-273, 81-274, 81-275, 81-276, 81-277)
A curved line on the daylight evaluation chart rising from the intersection of the curved line representing an elevation angle of 72 degrees with the vertical line at the far lot line . The profile curve is used to evaluate a building's obstruction of the sky as seen in profile from the vantage point .