yang686526

freeze layer in viewport
freeze layer in viewport
i have three viewport on a layout. now i want to draw something in modelspace only visible in the last viewport. so i create a new layer, and try to freeze that new layer in all but the last viewport.
problem is that only one (*active) viewport is in the viewporttable, why not three?
i put the viewports in the paperspace block, and thought that they would autimatically be added to the viewport table, but maybe not?
this is how i iterate the viewport table:
code:
oddbviewporttableptr pvt = m_pdb->getviewporttableid().safeopenobject(oddb::kforwrite);
oddbsymboltableiteratorptr piter = pvt->newiterator();
for( piter->start() ; !piter->done() ; piter->step() )
{
oddbviewporttablerecordptr prec = piter->getrecordid().safeopenobject(oddb::kforwrite);
//how can i freeze a layer on the viewport??
}
next problem is converting from viewporttablerecord to viewport, so that i can call freezelayersinviewport(). do i have to create a list with one layer entry?
three questions:
1) why only one viewport in table?
2) how to get viewport from viewportrecord?
3) do i have to make a list for freezing?
thanks for your time
hi,
1) the paperspace viewports are entities and they are not stored in the viewport table. the viewport table contains records for the modelspace viewports - where you can have tiled viewports. so you have one viewport in a table because it is the active modelspace viewport;
2) there is no connection between the oddbviewport and oddbviewporttablerecord objects (no parent class or object id).
3) to freeze layers in a paperspace viewport you can use the functions oddbviewport::freezelayersinviewport() where you pass an arrray of object ids indicating layers. to thaw (un-freeze) layers you can use oddbviewport::thawlayersinviewport() or oddbviewport::thawalllayersinviewport().
you mention the "last viewport" - i think in the paperspace there is no last viewport (only an active one), you can iterate to the paperspace entities and find the viewport which is in interest. please note also that the paperspace always have one paperspace viewport (i think it is the first entity stored in the paperspace table record) which represents the main scene of the paperspace.
hope this helps.
best regards
chudomir
hi chudo
okay, thank you very much. answers like yours saves hours of trial and error..
jesper