yang686526

"undefined line type" exception from loadlinetypefile
"undefined line type" exception from loadlinetypefile
with dwgdirect 1.12.04 and visual c++ 6.0, when i try to read the 鈥渁cadiso.lin鈥?file, using
m_exdb->loadlinetypefile("*", linesfilepath.ascii());
i get the exception : undefined line type
the code is extracted from odamfcapp (cloadlinetypes:nbuttonloadall), which opens the file without any problem.
i probably missed an initialization of some sort, but i could not find which one.
what does this exception mean ? what can cause this problem ?
is there something to do before calling 鈥渓oadlinetypefile鈥??
regards
ps:
context:
m_exdb is an oddbdatabaseptr, initialized by some code found in the examples (of course), and otherwise works fine :
m_exdb = m_svcs->createdatabase(true, oddb::kmetric);
// create the rendering context.
m_excontext = odgicontextfordbdatabase::createobject();
// set the database to be vectorized.
m_excontext->setdatabase(m_exdb);
// create the custom rendering device and set the output stream for the device.
odgsmoduleptr m = odrxcreatemoduleobject();
m_exdevice = m->createdevice();
// prepare the device to render the active layout in this database.
m_exdevice = oddbgsmanager::setupactivelayoutviews(m_exdevice, m_excontext);
// set the screen size for the generated geometry.
odgsdcrect screenrect(odgsdcpoint(0, 0), odgsdcpoint(100, 30));
m_exdevice->onsize(screenrect);
oddbdatabase::loadlinetype() 3-d parameter specifies how to handle the situation if a linetype is already in database:
for duplicate linetype:
-throw exception
-ignore
-replace existing definition
default is throw exception.
the code of exception (eundefinedlinetype) is incorrect and should be fixed in dd.
sergey slezkin
thanks for your reply.
unfortunately a duplicate linetype may not be the problem here.
i have tried all the possible values for this 3rd parameter, with always the same result, the same exception.
besides i try to load the standard lines file (鈥渁cad.lin鈥? in a newly created oddbdatabase. the way i understand the situation the new database contains only the default linetypes (鈥淐ontinuous鈥? 鈥淏ylayer鈥? 鈥淏yblock鈥? what else ?). which one of these would conflict with the linetypes in 鈥渁cad.lin鈥?(鈥淏order鈥? 鈥淐enter鈥? and the like) ? where am i wrong ?
are you sure you a duplicate linetype is the only possible explanation for this exception ?
thanks again
regards
default database contains 3 linetypes: continuous, byblock and bylayer.
do you load acadiso.lin after acad.lin? some linetypes are defined in both of them. (border, center)
another possible reason of exception may be invalid .lin file. are you able to load your acadiso.lin in odamfcapp?
(edit/add linetype)
sergey slezkin
i tried to load both acadiso.lin and acad.lin, but only one at a time.
both are original files from autocad and can be opened in odamfcapp.