2018/03/10 by Emad Ali Al-Hilaly, Al-Hilaly, Emad Ali, Israa Jameel +1 · 1 citation
Computer Science · Earth and Planetary Sciences · Engineering · Physics and Astronomy · #3D Surveying and Cultural Heritage #Applied Physics (physics.app-ph) #Architectural engineering #Computer Graphics and Visualization Techniques #Computer graphics (images) #Computer science #Engineering #Engineering drawing #FOS: Physical sciences #Popular Physics (physics.pop-ph) #Rendering (computer graphics) #Satellite Image Processing and Photogrammetry #Shadow (psychology) #physics.app-ph #physics.pop-ph
paper · pdf · doi:10.48550/arxiv.1803.03823
25 pages, 7 figures
arxiv created 2018/03/10 · openalex publication_date 2018/03/10 · arxiv updated 2018/03/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The AutoCAD is one of the most famous Computer Aided Drawing programs with high and accurate specifications in the engineering design. It is highly qualified and contains many of the tools it needs in many engineering departments. A useful tool is the lighting tool because it gives a simulated rendering of reality to a great degree that benefits the architect as well as urban designers. This tool includes simulating sunlight by date during the year, timing of day, and position of the body on the Earth. We tested the sunlight status tools in this program in the limit of our test region to see how accurate it was and it turned out to have a 45% error difference. The sun shadow in AutoCAD rendering is longer than the real by 145%. There is another error in the direction of shadow also. It is essential to note these errors for any designer need to calculate the shadow length and direction from the AutoCAD program.