Create a polygon with precise edge length, number of edges, and center position. Unlike drawing polygons with radii in 2D tools, it is very suitable for polygons with known side lengths, such as hexagonal pavilions, polygonal fields, etc. . ..

Mark the solar exposure data, including solar altitude angle, summer solstice, winter solstice, spring equinox, latitude, longitude, altitude and azimuth. You can also see the incidence angle, percentage of exposure, horizontal shadow angle and vertical shadow angle.The "incident light" generated during annotation is presented as an auxiliary dotted line, and auxiliary points and