Sciography in architecture
- 1. Ar. Sahil Pahal,Assistant Professor, Faculty of Planning & Architecture, Pt. Lakhmi Chand State University of Performing and Visual Arts, Rohtak, Haryana
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- 5. WHY DO WEDO SCIOGRAPHY?
- 6. DEFINITION: • Sciography, alsospelled sciagraphy or skiagraphy (Greek: σκιά "shadow" and English: graphy “pictorial representation"), is a branch of science of the perspective dealing with the projection of shadows, or delineation of an object in perspective with its gradations of light and shade. • Architecture is one of the major professional fields that use this technique for accurate representation of shadows. • We can say that “the study of shade and shadow cast by different objects on plane surfaces is called Sciography.”
- 7. ASSUMPTIONS/CONSIDERATIONS 1. Source oflight is sun and we take the solar azimuth angle as 45° and solar altitude angle as 45°. 2. The sun is located at left side of the observer and all the light rays coming from sun are parallel rays. 3. Parallel lines cast parallel shadows on the parallel surface and perpendicular lines cast shadows at an angle of 45°. 4. Shadow will continue to form whether the surface changes or not. 5. For example: If a Straight line is parallel to VP and perpendicular to HP and line is placed near to VP, then shadow will start in HP but it will end in the VP.
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