Fotogrametryczna rekonstrukcja Wieży Władysławowskiej Zamku Królewskiego w Warszawie

A re c o n s tru c tio n of th e n o t e x is tin g a rc h ite c tu ra l ob ject re q u ire s th a t, ab ove th e all, th e g re a te s t possible n um b e r of illu s tra tiv e m a te ria l be collected allowin g to rep ro d u c e th e w h o le a n d its most fin e details. While s ta rtin g th e w o rk on th e design d o c um en ta tio n fo r th e Royal C a stle to re c o n s tru c t th e King L ad islau s IV ’s T owe r th e a u th o rs of th e p re s e n t ap p lied th e p h o to - g ram m e tric method. As is w id e ly k n ow n it is th e p h o to g ram m e try th a t m ak e s it possible to rep ro d u c e b o th sh ap e an d size of a n a rc h ite c tu ra l ob je c t b a sin g on p h o to g rap h s a llow in g to b u ild th e stereoscopic model of a giv en solid. T he basic fe a tu re e n ab lin g to a chieve th e sp a tia l model co n sists in ta k in g tw o p h o to g rap h s of th e same o b ject from th e tw o d iffe re n t p o in ts p ro v id ed , h owever, th a t th e d is tan c e b e tw e en th e s e tw o s ta tio n s of c am e ra (phototheodolite) m u s t am o u n t to 1/4 u p to 1/10 of th a t b e tw e en th e s ta tio n s an d th e o b je c t p h o to g rap h ed . The lin e on w h ich in a giv en p o in t (base) is p la c e d th e c am e ra in mo st in s ta n c e s is one p a ra lle l to th e fro n t p la n e of th e o b je c t w h e re a s th e d is tan c e in m e tre s u su a lly co n s titu te s a basic e lem en t fo r m e a s u ring of sp a tia l co -o rd in a te s th a t in tu rn m ak e it possible to p re p a r e a sp a tia l model. The above p h o to g ram m e tric model of a n o b je c t can b e a ch iev ed in an y scale b o th by an a ly tic m e th o d an d th a t usin g special com p u ta tio n s mad e on th e p u n ch e d ta p e machine. On th e basis of a rc h iv a l p h o to g rap h s an d making th e use of p o ssib ilitie s to p re p a re th e sp a tia l models an analog model w a s b u ilt of th e K in g L ad islau s IV ’s Tower fo rmin g a p a r t of W a rs aw ’s Royal Castle. A fte r th e se ttin g of p rin c ip a l p o in t of im ag e an d c a lcu la tin g th e d istan c e s b e tw e en c am e ra s a n d th e object it b e came possible to p re p a re a lin e a r d raw in g of th e tow e r co n stitu tin g a tru e re p re s e n ta tio n of e x te rn a l forms an d m e a su rem e n ts w h ich a re in accordance w ith th e ad o p ted scale of th e w h o le e lab o ra tio n . This high pre c isio n lin e a r d raw in g p e rm itte d to fin d a n um b e r of im p o rta n t a rc h ite c tu ra l d e ta ils as, fo r in stan c e , th e s itu a tio n s of b a ck h an d s, th e .h e ig h ts of cornices or th e p ro je c tio n of luc a rn e . The p h o to g ram m e tric re p re s e n ta tio n of th e King L ad islau s IV ’s T owe r has proved b o th high degree of ap p lic ab ility an d u sefu len ess of th a t m e th o d w h en used for reb u ild in g of a rc h ite c tu ra l o bjects. Th e P h o to g ram m e tric Section of Warsaw Geodetic M e a su rem en t Company h a s a lre a d y u n d e rta k e n th e p h o to g ram m e tric re c o n s tru c tio n of th e dome once co v e rin g th e C a stle ’s main, i.e. th e King Sigism u n d u s ’ Tower.