Review of Heliodon Developments and Computational Tools for Building Shadow Analysis

In the last decade, analysis of shading or sunlight in architectural projects has become an important role improving building thermal and lighting performances. Selecting appropriate software tool for this type is a challenging task given little information available. Therefore, paper reviews existing literature on heliodon designs computational tools shadow analysis. The review includes detailed description classification various types heliodons, along with their operating principles geometric features that affect performance, including light sources, positioning mechanisms, structures. This also descriptions testing patterns applications architecture. Moreover, shows capabilities different packages essential features, strengths, limitations. addition, we identified current gaps heliodons tools. According to results, case there lack error standardized calibration process, therefore, repeatability results difficult achieve. tools, they have reached higher degree success market than however, cost licensing learning curve can be limitation.