为何例程ents可以这样声名函数？
#include#include
#include
#include
#include
#include
#include "dbfcf.h"
AcDbObjectId createLine();
AcDbObjectId createCircle();
void createNewLayer();
void createGroup(); //问一：为何例程可以这样声名函数？
//而下面的函数体这样实现？带两个参数都不报错？
//void createGroup(AcDbObjectIdArray& objIds, char* pGroupName)
AcDbObjectId createFcf();
Acad::ErrorStatus changeColor(AcDbObjectId, Adesk::UInt16);
AcDbObjectId createFcf()
{
// double point={9.0, 3.0, 0.0};
// AcDbFcf *pLine;
AcGePoint3d center(90, 3.0, 0.0);
AcDbFcf *pLine = new AcDbFcf();
pLine->setText("{\\Fgdt;a}%%v0.1%%v%%v%%v%%v");
pLine->setLocation(center);
AcDbBlockTable *pBlockTable;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pBlockTable, AcDb::kForRead);
AcDbBlockTableRecord *pBlockTableRecord;
pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord,
AcDb::kForWrite);
pBlockTable->close();
AcDbObjectId lineId;
pBlockTableRecord->appendAcDbEntity(lineId, pLine);
pBlockTableRecord->close();
pLine->close();
return lineId;
}
// THE FOLLOWING CODE APPEARS IN THE SDK DOCUMENT.
AcDbObjectId
createLine()
{
AcGePoint3d startPt(4.0, 2.0, 0.0);
AcGePoint3d endPt(10.0, 7.0, 0.0);
AcDbLine *pLine = new AcDbLine(startPt, endPt);
AcDbBlockTable *pBlockTable;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pBlockTable, AcDb::kForRead);
AcDbBlockTableRecord *pBlockTableRecord;
pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord,
AcDb::kForWrite);
pBlockTable->close();
AcDbObjectId lineId;
pBlockTableRecord->appendAcDbEntity(lineId, pLine);
pBlockTableRecord->close();
pLine->close();
return lineId;
}
AcDbObjectId
createCircle()
{
AcGePoint3d center(9.0, 3.0, 0.0);
AcGeVector3d normal(0.0, 0.0, 1.0);
AcDbCircle *pCirc = new AcDbCircle(center, normal, 2.0);
AcDbBlockTable *pBlockTable;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pBlockTable, AcDb::kForRead);
AcDbBlockTableRecord *pBlockTableRecord;
pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord,
AcDb::kForWrite);
pBlockTable->close();
AcDbObjectId circleId;
pBlockTableRecord->appendAcDbEntity(circleId, pCirc);
pBlockTableRecord->close();
pCirc->close();
return circleId;
}
void
createNewLayer()
{
AcDbLayerTable *pLayerTable;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pLayerTable, AcDb::kForWrite);
AcDbLayerTableRecord *pLayerTableRecord =
new AcDbLayerTableRecord;
pLayerTableRecord->setName("ASDK_MYLAYER");
// Defaults are used for other properties of
// the layer if they are not otherwise specified.
pLayerTable->add(pLayerTableRecord);
pLayerTable->close();
pLayerTableRecord->close();
}
Acad::ErrorStatus
changeColor(AcDbObjectId entId, Adesk::UInt16 newColor)
{
AcDbEntity *pEntity;
acdbOpenObject(pEntity, entId,
AcDb::kForWrite);
pEntity->setColorIndex(newColor);
pEntity->close();
return Acad::eOk;
}
void
createGroup(AcDbObjectIdArray& objIds, char* pGroupName)
{
AcDbGroup *pGroup = new AcDbGroup(pGroupName);
for (int i = 0; i append(objIds);
}
// Put the group in the group dictionary which resides
// in the named object dictionary.
//
AcDbDictionary *pGroupDict;
acdbHostApplicationServices()->workingDatabase()
->getGroupDictionary(pGroupDict, AcDb::kForWrite);
AcDbObjectId pGroupId;
pGroupDict->setAt(pGroupName, pGroup, pGroupId);
pGroupDict->close();
pGroup->close();
}
// END CODE APPEARING IN SDK DOCUMENT.
void
runIt()
{
createNewLayer();
AcDbObjectIdArray idArr;
// create a line and circle and add them to the objectId
// array
//
idArr.append(createLine());
idArr.append(createCircle());
idArr.append(createFcf());
// change circle color to red
//
changeColor(idArr.last(), 1);
createGroup(idArr, "ASDK_TEST_GROUP");
}
void initApp()
{
acedRegCmds->addCommand("ASDK_MAKE_ENTS",
"ASDK_MKENTS",
"MKENTS",
ACRX_CMD_MODAL,
runIt);
}
void unloadApp()
{
acedRegCmds->removeGroup("ASDK_MAKE_ENTS");
}
extern "C" AcRx::AppRetCode
acrxEntryPoint(AcRx::AppMsgCode msg, void* appId)
{
switch (msg) {
case AcRx::kInitAppMsg:
acrxDynamicLinker->unlockApplication(appId);
acrxDynamicLinker->registerAppMDIAware(appId);
initApp();
break;
case AcRx::kUnloadAppMsg:
unloadApp();
}
return AcRx::kRetOK;
}
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