REPRESENTING DAYLIGHT INCIDENT ANGLES When graphically analyzing incident angles of daylight, the sun may be treated as infinitely distant, i. e., it can be assumed to cast parallel rays. A common diagraming error made by beginning students is to treat the sun as if it were a local point source. For a more detailed discussion of solar-angle geometry, refer to p. 144 in The Architect’s Studio Companion. FALL 2021 UNIVERSITY OF MINNESOTA / MIKE CHRISTENSON, INSTRUCTOR last updated 09-13-2021 REPRESENTING DAYLIGHT INCIDENT ANGLES / Page 1 of 1
