【转帖】oddbwipeout, modifying it after creating i
 

oddbwipeout, modifying it after creating it...
oddbwipeout, modifying it after creating it...
i have a new requirement for my application to be able to create and manipulate oddbwipeout entities. i am able to successfully create a wipeout, but modifying an existing one seems to be a bit more of a challenge.
below is the logic i use to manipulate a line entity:
code:
if(!oddbline::cast(piter->objectid().safeopenobject()).isnull() )
{
oddblineptr pline = piter->objectid().safeopenobject(oddb::kforwrite);
if(!pline.isnull())
{
//check and move
odgepoint3d startpoint;
if(eok == pline->getstartpoint(startpoint))
{
bcspointtowcs(startpoint);
if(bounds.contains(startpoint, containstol))
{
pline->setstartpoint(startpoint+=to);
}
}
odgepoint3d endpoint;
if(eok == pline->getendpoint(endpoint))
{
bcspointtowcs(endpoint);
if(bounds.contains(endpoint, containstol))
{
pline->setendpoint(endpoint+=to);
}
}
}
continue; // if the entity was of this type, it can't be of another type!
}// lineand here's the code that i am using to create the wipeout:
code:
void opendwgdrawing::createwipeout(opendwg::opendwgdrawing::pointsptr points, odstring layer)
{
odgepoint3darray arr;
oddbwipeoutptr pwip = oddbwipeout::createobject();
oddbblocktablerecordptr precord = getdimensionblock().safeopenobject(oddb::kforwrite);
precord->appendoddbentity(pwip);
pwip->setdatabasedefaults(_pdb);
pwip->setorientation(odgepoint3d::korigin, odgevector3d::kyaxis, odgevector3d::kxaxis);

for(pointsptr::iterator it = points.begin(); it != points.end(); it++)
{
arr.append((*it)->point(this));
//(*it)->dumppoint();
}
arr.append(arr.first());
//pwip->setclipboundary(arr);
pwip->setboundary(arr);

pwip->setdisplayopt(oddbrasterimage::imagedisplayopt::kshow,true);
pwip->setdisplayopt(oddbrasterimage::imagedisplayopt::kclip,true);
pwip->setdisplayopt(oddbrasterimage::imagedisplayopt::kshowunaligned,true);
pwip->setdisplayopt(oddbrasterimage::imagedisplayopt::ktransparent,false);
pwip->setlayer(getlayer(layer));
}
i know how to test an object to see if it is a wipeout, and then get the wipeout smart pointer, but from there things become obscure. what would be optimial is to get access to the existing boundary... something like:
code:
odgepoint3darray arr;
oddbwipeoutptr pwip
...// get the smart pointer to the existing od entity
...
pwip->getboundary(arr); // get the existing bounds
// enumerate the bounds and do misc testing to see which (if any) of the points are within the user specified points/bounds and then apply the desired transformation to the points that succeed
pwip->setboundary(arr);// only call set if one or more points were changed..so far, the only getter i am seeing that may be of use is oddbwipeoutptr::getvertices.
any help would be appreciated.
anyone at all? this is quickly becomming a road block for me.
can anyone point me in the proper direction to at least retreive the existing boundary points from an existing oddbwipeout object?
oddbwipeoutptr::getvertices was the answer. apparently i just needed to look deeper into it.