void
makeABlock()
{
// Create and name a new block table record.
//
AcDbBlockTableRecord *pBlockTableRec
= new AcDbBlockTableRecord();
pBlockTableRec->setName("ASDK-NO-ATTR");
// Get the block table.
//
AcDbBlockTable *pBlockTable = NULL;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pBlockTable, AcDb::kForWrite);
// Add the new block table record to the block table.
//
AcDbObjectId blockTableRecordId;
pBlockTable->add(blockTableRecordId, pBlockTableRec);
pBlockTable->close();
// Create and add a line entity to the component's
// block record.
//
AcDbLine *pLine = new AcDbLine();
AcDbObjectId lineId;
pLine->setStartPoint(AcGePoint3d(3, 3, 0));
pLine->setEndPoint(AcGePoint3d(6, 6, 0));
pLine->setColorIndex(3);
pBlockTableRec->appendAcDbEntity(lineId, pLine);
pLine->close();
pBlockTableRec->close();
}
Acad::ErrorStatus newLine()
{
//Mark the leftmost cubicle as unusable by putting a red diagonal
//line from the lower left to upper right corners
//Use the first parameter of acedGetPoint to rubberband to the second point
//Prompt the user to select the line's endpoints
ads_point pt1, pt2;
int retval;
//{{BEGIN_LEVEL_ADVANCED
try
{
//get the first point from the user. Do not specify a base point.
//...
//{{BEGIN_LEVEL_INTERMEDIATE
if ((retval = acedGetPoint(NULL, "\nSelect lower left: ", pt1)) != RTNORM)
throw retval;
//{{END_LEVEL_INTERMEDIATE
//get the second point from the user, using the first point as a base point.
//...
//{{BEGIN_LEVEL_INTERMEDIATE
if ((retval = acedGetPoint(pt1, "\nSelect upper right: ", pt2)) != RTNORM)
throw retval;
//{{END_LEVEL_INTERMEDIATE
}
catch (int e)
{
if (e == RTCAN)
return Acad::eUserBreak;
if (e == RTERROR)
return Acad::eInvalidInput;
}
//{{END_LEVEL_ADVANCED
//Instantiate an AcDbLine pointer. Use the two user-chosen
//points as endpoints.
//Since AcDbLine's constructor uses AcGePoint2d, but acedGetPoint returns ads_point,
//you must find a way to translate old style to new style. This can be done either by
//assigning each array member individually, or by calling asPnt3d() from geassign.h
//{{BEGIN_LEVEL_ADVANCED
//...
//{{BEGIN_LEVEL_INTERMEDIATE
AcDbLine* pLine = new AcDbLine(asPnt3d(pt1), asPnt3d(pt2));
//{{END_LEVEL_INTERMEDIATE
//Make sure you created the line...
if (!pLine)
{
acedAlert("Not enough memory to create a Line!");
return Acad::eOutOfMemory;
}
//{{END_LEVEL_ADVANCED
//Prompt the user to enter a new color
//Then change the color property of the new line to this value.
//{{BEGIN_LEVEL_ADVANCED
//...
//{{BEGIN_LEVEL_INTERMEDIATE
int color;
acedGetInt("\nEnter AutoCAD color number: ", &color);
if (pLine->setColorIndex(color) != Acad::eOk)
{
acutPrintf("\nInvalid color chosen.\n");
}
//{{END_LEVEL_INTERMEDIATE
//{{END_LEVEL_ADVANCED
//Post the new entity to the database
//{{BEGIN_LEVEL_ADVANCED
AcDbObjectId id;
return postToDatabase(pLine, id);
//{{END_LEVEL_ADVANCED
}