【转帖】oddbfcf calculation of bounding box is incorrec
 

oddbfcf: calculation of bounding box is incorrect
oddbfcf: calculation of bounding box is incorrect
hello,
i am creating geometrical tolerances using the following function:
int addtolerance(double posx, double posy, double scale, char* tolerancetext, int blockid, int playerid) {
//get the ids of different objects
oddbobjectid layerid = pobjarr->at(playerid);
//get the blocktablerecord
oddbblocktablerecordptr bbtr = getblockobjectid(blockid);
oddbfcfptr ptol = oddbfcf::createobject();
oddbobjectid tolid = bbtr->appendoddbentity(ptol);
ptol->setdatabasedefaults(bbtr->database());
/************************************************** ********************/
/* set the properties */
/************************************************** ********************/
odstring odtolerancetext = stringhelper::utf8toodstring(tolerancetext);
ptol->setdatabasedefaults(pdb);
odgepoint3d point(posx,posy,0);
ptol->setlocation(point);
ptol->settext(odtolerancetext);
ptol->setdimscale(scale);
if (layerid) {
ptol->setlayer(layerid, false);
}
odgeextents3d extents;
ptol->getgeomextents(extents);
//draw the diagonal of the bounding box (minpoint to maxpoint)
oddblineptr pline = oddbline::createobject();
pline->setstartpoint(extents.minpoint());
pline->setendpoint(extents.maxpoint());
bbtr->appendoddbentity(pline);
//add it to the block, return the id
return pobjarr->append(tolid);
}
i pass the following strings for creating the different tolerances in the example dxf file (attached .dxf file).
- "{\\fgdt;b}%%v0.003%%vab" fff">(lowest tolerance on the drawing)
- "{\\fgdt;h}%%v0.003%%vbc
- "{\\fgdt;i}%%v0.003%%va
- "{\\fgdt;r}%%v0.003%%va"fff"> (highest tolerance on the drawing)
the diagonal of the bounding box is also drawn in the different geometrical tolerances (see attached .dxf file).
my question now: why is the bounding box longer than the geometrical tolerance box? i would expect that the bounding box is equal to the geometrical tolerance box. i need to know the length of the geometrical tolerance box.
cheers and thanks,
christoph
attached files
hello christoph,
i suppose there is problem with fonts file (one or both, isocp.shx and gdt.shx) which are used in rendering tolerance. are this fonts accessible in your application? possible build-in dwgdirect fonts are used during creating file and real fonts are used then you see drawing for example in acad.
best regards,
sergey z.