|
Shadows is a software package for the calculation and drawing of sundials and astrolabes, available as a freeware in its base level. It has been developed by ''François Blateyron'', software developer and amateur astronomer, who made it available on Internet since 1997 and continues to improve it. 〔(Handbook of practical astronomy, Günter Dietmar Roth, Springer verlag )〕 It is used worldwide by thousands of sundial enthousiasts. It is compatible with Windows 10, 8.x and 7. Shadows is available in three levels: ''Shadows'' is a freeware; ''Shadows Expert'' and ''Shadows Pro'' are low cost shareware and provide advanced or professional functions. Since version 3.0, it supports the creation of astrolabes. In 2005, the French astronomical society, Société Astronomique de France (SAF) awarded Blateyron with the ''Julien Saget'' prize for the Shadows software. ==Description== Shadows calculates various types of sundials: * plane sundials with polar style (any orientation or reclination) * horizontal or vertical analemmatic sundial * horizontal or vertical bifilar sundial * cylindrical sundial as well as astrolabes: * planispheric astrolabe * universal astrolabe * mariners astrolabe ''Shadows'' is software restricted to the Windows operating system. It is simple to use but does not aim to be universal. It draws the sundial on screen and prints it to various scales to act as a template during fabrication. The sundials show solar time and can include longitude correction and equation of time. It also can draw ancient or unequal hours such as Italian and Babylonian and even draw azimuth and altitude curves. It has an animation feature so the shadow of the style can be simulated on the screen. The results can be copied as an image or a vector graphics (metafile or DXF) for use in CAD programs or machine tools. The Astrolabes are interactive and can be manipulated on screen by rotating the Rete and the Alidade using the mouse. Several curves and graphs are available: equation of time, solar graph with horizon mask, duration of the day, direction rose. It is now available in French, English, German, Spanish, Italian, Portuguese, Brazilian Portuguese, Dutch, Hungarian, Slovenian, Greek, Polish and Russian- the translation were provided by the users. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Shadows (software)」の詳細全文を読む スポンサード リンク
|