How to get annotative scale value from dimension?

[Anonymous]

How to get annotative scale value from dimension?

How to get annotative property from dimension?

plz provide some sample code!!!

[Alexander.Rivilis · Accepted solution]

static void CheckAnnotative(void)
{
    ads_name en; ads_point p;
    if (acedEntSel(_T("\nSelect annotative entity: "),en,p) != RTNORM) return;
    AcDbObjectId eid; acdbGetObjectId(eid,en);
    AcDbEntityPointer pEnt(eid,AcDb::kForRead);
    if (pEnt.openStatus() != Acad::eOk) return;
    AcDbAnnotativeObjectPE *ann = ACRX_PE_PTR(pEnt, AcDbAnnotativeObjectPE);
    if (ann && ann->annotative(pEnt)) {
      AcDbObjectContextInterface *objInt = ACRX_PE_PTR(pEnt, AcDbObjectContextInterface);
      if (objInt) {
          AcDbObjectContextManager *cManager = acdbCurDwg()->objectContextManager();
          if (cManager) {
              AcDbObjectContextCollection *col = 
                      cManager->contextCollection(ACDB_ANNOTATIONSCALES_COLLECTION);
              if (col) {
                    AcDbObjectContextCollectionIterator* iter = col->newIterator();
                    if (iter) {
                        for (iter->start(); !iter->done(); iter->next()) {
                            AcDbObjectContext *cont = NULL; iter->getContext(cont);
                            if (cont) {
                                AcDbAnnotationScale *pScale = AcDbAnnotationScale::cast(cont);
                                if (pScale && objInt->hasContext(pEnt,*pScale)){
                                    double scale  = 1; pScale->getScale(scale);
                                    double pUnits = 1; pScale->getPaperUnits(pUnits);
                                    double dUnits = 1; pScale->getDrawingUnits(dUnits);
                                    AcString name; pScale->getName(name);
                                    acutPrintf(_T("\nName = <%s> Scale = %g PaperUnits = %g DrawingUnits= %g"), 
                                        name.kACharPtr(), scale, pUnits, dUnits);
                                }
                            }
                        }
                        delete iter;
                    }
              }
          }
      }
    } else {
        acutPrintf(_T("\nNot annotative entity!"));
    }

}

Minimum error checking done.

ObjectARX SDK 2008 and 2009 has sample: samples\misc\AnnotationScaling

In order to download those old versions of ObjectARX SDK and and see this sample: http://goo.gl/XtJ2x