【转帖】acad cannt open this file which exported by dwgdirect1.111
 

acad cann't open this file which exported by dwgdirect1.11!
acad cann't open this file which exported by dwgdirect1.11!
hi, i used a program which use dwgdirect 1.11 to export the attached file. there is only a spline in it. the odreadex and odamfcapp can read this file,but acad can not. when use acad to open this file, it prompts:"internal error: !dbqspace.h@410: egeneralmodelingfailure". why?

regards!
attached files

because this spline contains invalid knot vector. maybe dd functions should throw exception on attempt to set invalid knot vector to oddbspline (at this moment they don't make any verification). also probably we should add some stuff for audit such splines.
btw, this file can be opened in autocad using recover functionality.
sincerely yours,
george udov
thanks!
regards