Topic: Display center point

[gnanapaul]

Hi...

My code is

Code: [Select]

void CSampDialog::OnShowPoints()
{
AcDbObjectId objid;
AcDbObject* pObj;
if (objid != NULL)
{
AcDbEntity* pObj = NULL;
if(acdbOpenObject(pObj,objid,AcDb::kForRead) == Acad::eOk)
{
AcDbCircle* pCirc = AcDbCircle::cast(pObj);
       if (pCirc !=NULL)
{
double dRadius = pCirc->radius();
AcGePoint3d ptCenter = pCirc->center();
acutPrintf("center %f radius %f", ptCenter, dRadius);
}
pObj->close();
}
else
acutPrintf("\nFailed to open the object.");

}
}

i need to print the center, radius of selected circles.
my above code is not working...

please can any one me?

thanks...

[MickD]

you need to break the point into it's 3 dimensional parts
eg.

acutPrintf("centre %f,%f,%f", ptCentre.X, ptCentre.Y, ptCentre.Z);

or something like that

[gnanapaul]

you need to break the point into it's 3 dimensional parts
eg.

acutPrintf("centre %f,%f,%f", ptCentre.X, ptCentre.Y, ptCentre.Z);

or something like that

Hi...

Thanks for your reply.
problem is in

Code: [Select]

if (objid != NULL)

how to get AcDbObjectId from db?
please tell me...

[MickD]

Try something like this -

Code: [Select]

void CSampDialog::OnShowPoints()
{
AcDbObjectId objid; // this gets assigned to in the acdbOpenObject method.
AcDbObject* pObj;

AcDbEntity* pObj = NULL;  // ----- you need to get/select an object to set this so you can open it
if(acdbOpenObject(pObj,objid,AcDb::kForRead) == Acad::eOk)
{
AcDbCircle* pCirc = AcDbCircle::cast(pObj);
        if (pCirc !=NULL)
{
double dRadius = pCirc->radius();
AcGePoint3d ptCenter = pCirc->center();
acutPrintf("center %f radius %f", ptCenter, dRadius);
}
pObj->close();
}
else
acutPrintf("\nFailed to open the object.");
}
}

[gnanapaul]

Hi MickD,

Thanks for your reply.

I used your code. But it shows failed to pen object.

I thing here i have to get selected object'ss objectId from object in the database.

But i don't know how to get objectid from database.

please help me.

thanks again...

[It's Alive!]

what version of Acad are you targeting?

[It's Alive!]

you can get an array of IDs in the current selection set by using acdbGetCurrentSelectionSet

[gnanapaul]

Hi Daniel,

Thanks for your reply.

I am totally newbie to arx. please give code syntax for acdbGetCurrentSelectionSet.

I am using Autocad 2000 and vc6.0

Thanks a lot....

[It's Alive!]

something like

Code: [Select]

void CSampDialog::OnShowPoints()
{
  AcDbObjectIdArray ids;
  if(acdbGetCurrentSelectionSet(ids) == eOk)
  {
    for(size_t i = 0; i < ids.length() ; i++)
    {
      AcDbEntity* pObj = NULL;
      if(acdbOpenObject(pObj,ids[i],AcDb::kForRead) == Acad::eOk)
      {
        AcDbCircle* pCirc = AcDbCircle::cast(pObj);
        if (pCirc !=NULL)
        {
          double dRadius = pCirc->radius();
          AcGePoint3d ptCenter = pCirc->center();
          acutPrintf("center (%g,%g,%g) radius %g",
            ptCenter.x,ptCenter.y,ptCenter.z, dRadius);
        }
        pObj->close();
      }
      else
        acutPrintf("\nFailed to open the object.");
    }
  }
}


[gnanapaul]

Hi Daniel,

I used your code. But,

Code: [Select]

error C2065: 'acdbGetCurrentSelectionSet' : undeclared identifier
error C2065: 'eOk' : undeclared identifier
warning C4018: '<' : signed/unsigned mismatch
Shall i include any header file???

Thanks a lot again...

Regards,
Paul.G

[It's Alive!]

replace eOk with Acad::eOk 
It may be that acdbGetCurrentSelectionSet did not exist in 2000,  the oldest docs I have are for 2002. it should be in  aced.h
If it's not in the 2000 SDK, you might be able to use the 2002 SDK as it is are binary compatible

[It's Alive!]

Also, if you ever plan on using your code on versions 2007+, you should use TCHAR  &&  _T("") for all your strings i.e acutPrintf(_T("\nARX Rocks!"));

[gnanapaul]

Hi Daniel,

Code: [Select]

error C2065: 'acdbGetCurrentSelectionSet' : undeclared identifier
is continue.

Code: [Select]

you might be able to use the 2002 SDK as it is are binary compatible

How to use 2002 SDK?
I have included aced.h.


Thanks again...

[It's Alive!]

<ftp://ftp.autodesk.com/pub/objectarx/objectarx_2002/>

[gnanapaul]

Hi Daniel,

Code: [Select]

ads_name ss;
if( RTNORM != acedSSGet("P",NULL,NULL,NULL,ss))  
{
if( RTNORM != acedSSGet(NULL,NULL,NULL,NULL,ss))  
{
acDocManager->unlockDocument(acDocManager->curDocument());
return;
}
}

long nEnts;
acedSSLength(ss,&nEnts);
AcDbObjectIdArray entities(nEnts);
acutPrintf("\nFound %d Entities", nEnts);

double pRadius, y_value;
int rc;
ads_name en;
AcGePoint3d pt;

rc = acedEntSel("\nSelect circles: ", en, asDblArray(pt));
if (rc != RTNORM)
{
acutPrintf("\nNo entity selected...");
return;
}
AcDbObjectId eId, eId2;
acdbGetObjectId(eId, en);

AcDbObject *pDbObj;

AcDbCircle *pcircle;
AcGePoint3d *pCenter1 = new AcGePoint3d;
acdbOpenObject(pDbObj, eId, AcDb::kForRead);
AcDbCircle* pCircle = AcDbCircle::cast(pDbObj);
if(pCircle == NULL)
return;
if(pCircle == NULL)
return;
AcGePoint3d pCenter = pCircle->center();
y_value = pCenter.y;
pRadius = pCircle->radius();
acutPrintf("Selected object Y value %f\n", y_value);
acutPrintf("Selected object X value %f\n", pCenter);

This above code working fine. but it shows only one selected circles center. But i need to show multiple circles at a time. please help me to change the code for to show selected circles center point...

Thanks again...