Simple Associative Dimension

[EMD1954]

Does anyone have a sample of how to create an associative dimension between two points?

Thanks,

Ed

[EMD1954]

Sorry, forgot to add that this is a simple, linear dimension.

[Alexander.Rivilis]

Maybe this sample can help you: https://adndevblog.typepad.com/autocad/2015/03/creating-associative-dimension-in-paperspace-associat...

[EMD1954]

I want to do it in model space, not paper space.  Not sure this is appropriate?

[Alexander.Rivilis]

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@EMD1954 wrote:

I want to do it in model space, not paper space.  Not sure this is appropriate?

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The same in model space. I think you have to do minimum changes in this code.

[EMD1954]

Okay, thanks.  I'll let you know how it works for me.

[EMD1954]

Alexander,

The file "Results.pdf" show the results when I call "paperRotatedDimAssoc()", and "__Temp.TXT" (my .cpp file) is my code.  Any suggestions?

[Alexander.Rivilis]

Maybe you have to change dimension properties (or dimension style)

[EMD1954]

I set all of the appropriate system variables and only got slight improvement.  Then I tried the old-fashioned way:

int es = acedCommandS(RTSTR, _T("_DIMENSION"), RTSTR, _T("0.0,0.0"), RTSTR, _T("0.0,240.0"), RTSTR, _T("0.0,0.0"), RTSTR, _T(""), RTNONE);

It returns -5001.

[Alexander.Rivilis]

You can set dimension style to dimension with this code:

dim->setDatabaseDefaults();
dim->setDimstyleData(pCurDb->dimstyle());

[EMD1954]

Yes, I had both of those.  Do you see what's wrong with my acedCommansS()?  Any idea why it doesn't work?

[Alexander.Rivilis]

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@EMD1954 wrote:

Yes, I had both of those.  Do you see what's wrong with my acedCommansS()?  Any idea why it doesn't work?

---

Context of document or application? Also you can set CMDECHO to 1 in order to see in commandline what wrong.

[EMD1954]

Here's the command line:

Dim: 0.0,0.0
Dim: 0.0,240.0
Dim: 0.0,0.0
Dim:
Type EXIT to return to COMMAND prompt.

If I add _T("EXIT") instead of _T("") like this:

 int es = acedCommandS(RTSTR, _T("_DIM"), RTSTR, _T("0.0,0.0"), RTSTR, _T("0.0,240.0"), RTSTR, _T("0.0,0.0"), RTSTR, _T("EXIT"), RTNONE);)

Dim: 0.0,0.0
Dim: 0.0,240.0
Dim: 0.0,0.0

with es = 5100
Dim: EXIT

[EMD1954]

Alexander,

I tried this, with the same results:

struct resbuf *cmdlist;

cmdlist = acutBuildList(RTSTR, _T("DIM"), RTSTR, _T("0.0,0.0"), RTSTR, _T("0.0,240.0"), RTSTR, _T("0.0,0.0"), RTSTR, _T("EXIT"), RTNONE);

if (cmdlist == NULL) acdbFail(_T("Couldn't create list\n"));

acedCmdS(cmdlist);

acutRelRb(cmdlist);

Dim: 0.0,0.0
Dim: 0.0,240.0
Dim: 0.0,0.0
Dim: EXIT

I'm lost.

[EMD1954]

Finally, after too many hours, I think I worked out all of the bugs.  This seems to work just fine in case anyone else was looking for this:

//-----------------------------------------------------------------------------

//------ FUNCTION makeRotatedDim() ------//

void makeRotatedDim(AcGePoint3d pt1, AcGePoint3d pt2, double dAngle)

{

Acad::ErrorStatus es;

AcGePoint3d ptMid = getMidPoint(pt1, pt2);  // getMidPoint is one of my simple utilities

AcDbBlockTableRecord* blkRec;

AcDbDatabase *pCurDb;

pCurDb = acdbHostApplicationServices()->workingDatabase();

AcDbRotatedDimension* dim = new AcDbRotatedDimension;

dim->setXLine1Point(pt1);

dim->setXLine2Point(pt2);

dim->setRotation(dAngle);

dim->setHorizontalRotation(dAngle);

dim->useDefaultTextPosition();

dim->setDatabaseDefaults();

es = acdbOpenObject(blkRec, pCurDb->currentSpaceId(), AcDb::kForWrite);

acedAlert(acadErrorStatusText(es));

es = blkRec->appendAcDbEntity(dim);

if(es!=Acad::eOk) acutPrintf(_T("\nError adding entity (%d)"), es);

blkRec->close();

dim->close();

return;

} // end of function makeRotatedDim()

[Alexander.Rivilis]

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@EMD1954 wrote:

Finally, after too many hours, I think I worked out all of the bugs.  This seems to work just fine in case anyone else was looking for this:

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This dimension is not associative. In order to create associative dimension you have to use code from link I've posted above.

[EMD1954]

Alexander,

All I know is that when I stretch it, the dimension text changes properly, so it does everything I needed it to do.

Thanks,

Ed

[Alexander.Rivilis]

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@EMD1954 wrote:

Alexander,

All I know is that when I stretch it, the dimension text changes properly, so it does everything I needed it to do.

Thanks,

Ed

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About associative dimensions: 

Dimensions can be associative, which mean that they adjust to changes in the geometric objects that they measure.

Dimension associativity defines the relationship between geometric objects and the dimensions that give their distance and angles.

https://help.autodesk.com/view/ACD/2023/ENU/?guid=GUID-8B7E8C96-C30D-409E-881E-7942871E80DA

[EMD1954 · Accepted solution]

Sorry for the mistake in nomenclature.  I just needed a dimension object that hit the correct points, had the correct text and changes when I stretch it.  I'm good and will close this thread.

Thanks,

Ed