Hi,


Here is the testing source code which leads to not correct prism shape (BRepPrimAPI_MakePrism).


How to test: 
	Add the source code from source.txt somewhere to testing application,
	Put arc.dta and arc_ok.dta into C:\,
	Call "Prism_Bug_Test()".

	There is some problem with o_prism shape in the function "Prism_Bug_Test()". When I tried to obtain the section of o_prism shape with a horisontal plane, there were no result edges!
	O_prism is also not correctly displayed - just selection frame!
	When the "arc_ok.dta" is used (in Prism_Bug_Test()) instead of "arc.dta", the situation is different. Section is ok, and displayed shape is correct too.

Best regards,
	Adrian