Arx函数收集
//获取文件名
int
getFile(
// input:
const char* pCmdAsk, // prompt for command line mode
const char* pDiaAsk, // prompt for dialog box mode
const char* pExt, // file extension
// output:
char* pResult) // selected file returned to the caller.
// must be an allocated buffer!
{
char tmpResult[134];
struct resbuf *pRb = NULL;
int res = RTERROR;
char drive[_MAX_DRIVE], dir[_MAX_DIR];
char fname[_MAX_FNAME], ext[_MAX_EXT];
// command line argument?
//
if ( NULL != (pRb = acedGetArgs()) && RTSTR == pRb->restype) {
// yes!
//
strcpy( tmpResult, pRb->resval.rstring );
// continue later: look if acedFindFile finds the file!
//
res = RTNORM;
}
else {
// no command line argument
//
struct resbuf fileDia;
// is "filedia" set to 1?
//
acedGetVar( "filedia", &fileDia );
if (1 == fileDia.resval.rint) {
// yes, display dialog box
//
struct resbuf fileRes;
res = acedGetFileD( pDiaAsk, NULL, pExt, 0, &fileRes );
if (RTNORM != res) return res;
if (RTSTR == fileRes.restype) {
// user selected valid file
//
strcpy( pResult, fileRes.resval.rstring );
free( fileRes.resval.rstring );
return RTNORM;
}
}
// Prompt at command line required. Either
// filedia = 0, or "type it" button in dialog was pressed.
//
res = acedGetString( 0, pCmdAsk, tmpResult );
if (RTNORM != res) return res;
}
// look if there's already the file extension attached
//
_splitpath( tmpResult, drive, dir, fname, ext );
// if not, append file extension
//
if (stricmp( ext, pExt ) != 0)
_makepath( tmpResult, drive, dir, fname, pExt );
// look if file exists (only if not in dialog mode)
//
res = acedFindFile( tmpResult, pResult );
if (RTNORM != res)
acutPrintf( "/nUnable to open %s./n", tmpResult );
return res;
}
例子： char dwgName[_MAX_PATH];
if (RTNORM != getFile( "Enter DWG name", "Select Drawing", "dwg",
dwgName ))
{
return;
}
——————————————————————————————————————————————
// 符号库: 可以用一个dwg文件存储多个符号块定义.
void CopyBlockTableRecordFromDwgFile(LPCTSTR dwgFile)
{
Acad::ErrorStatus es;
AcDbDatabase *db = acdbHostApplicationServices()->workingDatabase();
ASSERT(dwgFile.CompareNoCase("") != 0);
if (FileExists(dwgFile) == TRUE) {
AcDbDatabase *pDb = new AcDbDatabase(Adesk::kFalse);
es = pDb->readDwgFile(dwgFile);
if (es != Acad::eOk) {
acutPrintf("Failed to reading dwg.Error:%d/n",es);
return ;
}
AcDbBlockTable* pBT;
es = pDb->getSymbolTable(pBT,AcDb::kForRead);
if (es != Acad::eOk) {
acutPrintf("Error getting BlockTable of dwg.Error:%d/n",es);
return ;
}
AcDbObjectId objId;
AcDbObjectIdArray objIdArray;
AcDbBlockTableIterator *pIT;
es = pBT->newIterator(pIT);
if (es != Acad::eOk) {
acutPrintf("Error iterating block table.Error:%d/n",es);
return ;
}
for (; !pIT->done(); pIT->step()) {
es = pIT->getRecordId(objId);
if (es == Acad::eOk) {
objIdArray.append(objId);
}
}
delete pIT;
pBT->close();
//
AcDbObjectId destBlkId;
destBlkId = db->currentSpaceId();
AcDbIdMapping idMap;
idMap.setDestDb(db);
es = db->wblockCloneObjects(objIdArray,destBlkId,idMap,AcDb::kDrcIgnore);
if (es != Acad::eOk) {
acutPrintf("Failed wblockCloneObjects.Error:%d/n",es);
return ;
}
delete pDb;
}
}
——————————————————————————————————————————————
{
unsigned char k;
int j;
CString tmpStr;
hexStr.Empty(); // make sure nothing in it yet since we are concatenating it
for (j=0;j<len;j++) {
k = static_cast<unsigned char>(buffer[j]);
tmpStr.Format(_T("%02hX"), k);
hexStr += tmpStr;
}
return hexStr;
}
{
// which data type is this value
if ((resType >= 0) && (resType <= 9))
return RTSTR;
else if ((resType >= 10) && (resType <= 17))
return RT3DPOINT;
else if ((resType >= 38) && (resType <= 59))
return RTREAL;
else if ((resType >= 60) && (resType <= 79))
return RTSHORT;
else if ((resType >= 90) && (resType <= 99))
return RTLONG;
else if ((resType == 100) || (resType == 101) || (resType == 102) ||(resType == 105))
return RTSTR;
else if ((resType >= 110) && (resType <= 112))
return RTSTR;
else if ((resType >= 140) && (resType <= 149))
return RTREAL;
else if ((resType >= 170) && (resType <= 179))
return RTSHORT;
else if ((resType >= 210) && (resType <= 219))
return RT3DPOINT;
else if ((resType >= 270) && (resType <= 299))
return RTSHORT;
else if ((resType >= 300) && (resType <= 309))
return RTSTR;
else if ((resType >= 310) && (resType <= 369))
return RTENAME;
else if ((resType >= 370) && (resType <= 379))
return RTSHORT;
else if ((resType >= 380) && (resType <= 389))
return RTSHORT;
else if ((resType >= 390) && (resType <= 399))
return RTENAME;
else if ((resType >= 400) && (resType <= 409))
return RTSHORT;
else if ((resType >= 410) && (resType <= 419))
return RTSTR;
else if (resType == 1004)
return resType; // binary chunk
else if ((resType >= 999) && (resType <= 1009))
return RTSTR;
else if ((resType >= 1010) && (resType <= 1013))
return RT3DPOINT;
else if ((resType >= 1038) && (resType <= 1059))
return RTREAL;
else if ((resType >= 1060) && (resType <= 1070))
return RTSHORT;
else if ((resType == 1071))
return RTLONG;
else if ((resType < 0) || (resType > 4999))
return resType;
else
return RTNONE;
}
{
int dataType = dxfCodeToDataType(rb->restype);
dxfCodeStr.Format(_T("%d"), rb->restype);
CString tmpStr;
switch (dataType) {
case RTSHORT:
valueStr.Format(_T("%d"), rb->resval.rint);
break;
case RTLONG:
valueStr.Format(_T("%ld"), rb->resval.rlong);
break;
case RTREAL:
valueStr.Format(_T("%g"), rb->resval.rreal);
break;
case RTSTR:
if (rb->resval.rstring == NULL)
valueStr = _T("(NULL)");
else
valueStr.Format(_T("/"%s/""), rb->resval.rstring);
break;
case RT3DPOINT:
valueStr.Format(_T("(%g, %g, %g)"), rb->resval.rpoint[X],
rb->resval.rpoint[Y], rb->resval.rpoint[Z]);
break;
case RTPOINT:
valueStr.Format(_T("(%g, %g)"), rb->resval.rpoint[X], rb->resval.rpoint[Y]);
break;
case 1004:
valueStr.Format(_T("Binary Chunk: /"%s/""),
bytesToHexStr(rb->resval.rbinary.buf,
rb->resval.rbinary.clen, tmpStr));
break;
case -6:
valueStr = _T("Extension Dictionary");
break;
case -5:
valueStr = _T("Persistent Reactors");
break;
case -4:
valueStr.Format(_T("Conditional Operator: /"%s/""), rb->resval.rstring);
break;
case -3:
valueStr = _T("Start of Xdata");
break;
case -2:
valueStr.Format(_T("<Entity Name Reference: %8lx>"), rb->resval.rlname[0]);
break;
case -1:
case RTENAME:
if ((rb->restype >= 330 )&& (rb->restype < 340))
valueStr.Format(_T("<Soft Pointer: %8lx>"), rb->resval.rlname[0]);
else if((rb->restype >= 340) && (rb->restype < 350))
valueStr.Format(_T("<Hard Pointer: %8lx>"), rb->resval.rlname[0]);
else if((rb->restype >= 350) && (rb->restype < 360))
valueStr.Format(_T("<Soft Ownership: %8lx>"), rb->resval.rlname[0]);
else if((rb->restype >= 360) && (rb->restype < 370))
valueStr.Format(_T("<Hard Ownership: %8lx>"), rb->resval.rlname[0]);
else if((rb->restype >= 390) && (rb->restype < 399))
valueStr.Format(_T("<Hard Pointer: %8lx>"), rb->resval.rlname[0]);
else
valueStr.Format(_T("<Entity Name: %8lx>"), rb->resval.rlname[0]);
break;
case RTPICKS:
valueStr.Format(_T("<Selection Set: %8lx>"), rb->resval.rlname[0]);
break;
case RTLB:
valueStr = _T("List Begin");
break;
case RTLE:
valueStr = _T("List End");
break;
case RTNIL:
valueStr = _T("NIL");
break;
case RTT:
valueStr = _T("T");
break;
default:
valueStr = _T("*Unknown*");
break;
}
}
{
// get the extents of the drawing
AcDbViewTableRecord view;
AcGePoint3d max =acdbHostApplicationServices()->workingDatabase()->extmax(),
min = acdbHostApplicationServices()->workingDatabase()->extmin();
AcGePoint2d max_2d (max[X], max[Y]);
AcGePoint2d min_2d (min[X], min[Y]);
// now set the view centre point
view.setCenterPoint (min_2d + (max_2d - min_2d) / 2.0);
// now height and width of view
view.setHeight(max_2d[Y] - min_2d[Y]);
view.setWidth (max_2d[X] - min_2d[X]);
// set the view
acedSetCurrentView (&view, NULL);
// updates the extents
acdbHostApplicationServices()->workingDatabase()->updateExt(TRUE);
}
//
// This is command 'ZOOMWIN, by Fenton Webb [Apr/17/2002], DevTech, Autodesk
void asdkzoomWin()
{
AcGePoint3d max, min;
// get the window coords
int res = acedGetPoint (NULL, "/nPick zoom window pnt : ",asDblArray(min));
// if ok
if (res == RTNORM)
{
res = acedGetCorner (asDblArray(min), "/nPick other corner : ",
asDblArray(max));
// get the extents of the drawing
AcDbViewTableRecord view;
AcGePoint2d max_2d (max[X], max[Y]);
AcGePoint2d min_2d (min[X], min[Y]);
// now set the view centre point
view.setCenterPoint (min_2d + (max_2d - min_2d) / 2.0);
// now height and width of view
view.setHeight(max_2d[Y] - min_2d[Y]);
view.setWidth (max_2d[X] - min_2d[X]);
// set the view
acedSetCurrentView (&view, NULL);
// updates the extents
acdbHostApplicationServices()->workingDatabase()->updateExt(TRUE);
}
}
char * new_linetypename = NULL;
if (acedLinetypeDialog(acdbCurDwg()->celtype(),true,new_linetypename,new_linetypeId) && new_linetypename) {
acutPrintf("/nLinetype selected: %s",new_linetypename);
free(new_linetypename);
} else {
acutPrintf("/nLinetype not selected!");
}
acedLineWeightDialog(AcDb::LineWeight::kLnWt000,false,w);
功能: 设置视图（相当于Zoom Window命令）
输入参数: Pt1 -- 视图左上角点
Pt2 -- 视图右下角点
ex_ratio -- 扩展比率,一般为1.0
输出参数:
返回值: void
其它:
*****************************************************************/
void setView(AcGePoint2d Pt1, AcGePoint2d Pt2, double ex_ratio)
{
AcGePoint2d CenterPt;
//若X坐标或Y坐标重合，判为意外，不进行SetView操作
if ((fabs(Pt1.x-Pt2.x)<1e-6)||(fabs(Pt1.y-Pt2.y)<1e-6))
return;
//确保两个坐标点分别为左上角和右下角
if (Pt1.x>Pt2.x) {
double tmp;
tmp = Pt1.x;
Pt1.x = Pt2.x;
Pt2.x = tmp;
}
if (Pt2.y>Pt1.y) {
double tmp;
tmp = Pt1.y;
Pt1.y = Pt2.y;
Pt2.y = tmp;
}
//获取当前DwgView的尺寸
CRect CADrect;
acedGetAcadDwgView()->GetClientRect(&CADrect);
double width,height,ratio;
ratio = (double)(CADrect.right-CADrect.left)/(double)(CADrect.bottom-CADrect.top);
if (fabs(ratio)<1e-6)
return;
if ((Pt2.x-Pt1.x)/(Pt1.y-Pt2.y) > ratio) {
width = Pt2.x-Pt1.x;
height = width/ratio;
}else{
height = Pt1.y-Pt2.y;
width = height * ratio;
}
//设置当前视图中心点
CenterPt.x = (Pt1.x+Pt2.x)/2;
CenterPt.y = (Pt1.y+Pt2.y)/2;
//改变当前视图
AcDbViewTableRecord pVwRec;
pVwRec.setCenterPoint(CenterPt);
pVwRec.setWidth(width * ex_ratio);
pVwRec.setHeight(height * ex_ratio);
acedSetCurrentView( &pVwRec, NULL );
}
///////////////////////////////////////////////////////////////
// 函 数 名 : oxaGetVar
// 函数功能 :
// 处理过程 :
// 备 注 :
// 作 者 : user
// 时 间 : 2004年6月16日
// 返 回 值 : int
// 参数说明 : const CString strSym,
// AcGePoint3d &vOut
///////////////////////////////////////////////////////////////
int oxaGetVar(const CString strSym, AcGePoint3d &vOut )
{
resbuf rbVar ;
int iRt=acedGetVar(strSym, &rbVar) ;
if (iRt!=RTNORM)
{
return iRt;
}
//oxaPrint(&rbVar);
if (rbVar.restype==RTPOINT)
{
vOut.x=rbVar.resval.rpoint[0];
vOut.y=rbVar.resval.rpoint[1];
}
if (rbVar.restype==RT3DPOINT)
{
vOut.x=rbVar.resval.rpoint[0];
vOut.y=rbVar.resval.rpoint[1];
vOut.z=rbVar.resval.rpoint[2];
}
return RTNORM;
}
/////////////////////////////////////////////////////////////////////////////////
//# DOC.BEGIN
//# 函数名称： oxaGetVar
//# 函数编号： OXA
//# 函数声明：
//# 函数参数： const CString strSym,
// int &vOut
//# 返回值： int
//# 函数分类：
//# 函数功能： 获取系统变量， 封装acedGetVar()
//# 注意事项：
//# 涉及的全局变量：
//# 调用的OXARX函数：
//# 函数算法：
//# ACAD版本：R14 R15 R16
//# 配合函数：
//# 类似函数：
//# 替换函数：
//# 现存缺陷：
//# 示例程序：
//# 测试要求：
//# 历史记录： 2003年11月10日 , zjw ,完成
//
//# DOC.END
//////////////////////////////////////////////////////////////////////////
int oxaGetVar(const CString strSym, int &vOut )
{
resbuf rbVar;
int iRt=acedGetVar(strSym, &rbVar) ;
if (iRt!=RTNORM)
{
return iRt;
}
if (rbVar.restype==RTLONG)
{
vOut=rbVar.resval.rlong;
}
if (rbVar.restype==RTSHORT)
{
vOut=rbVar.resval.rint;
}
return RTNORM;
}
/////////////////////////////////////////////////////////////////////////////////
//# DOC.BEGIN
//# 函数名称： oxaGetVar
//# 函数编号： OXA
//# 函数声明：
//# 函数参数： const CString strSym,
// double &vOut
//# 返回值： int
//# 函数分类：
//# 函数功能： 获取系统变量， 封装acedGetVar()
//# 注意事项：
//# 涉及的全局变量：
//# 调用的OXARX函数：
//# 函数算法：
//# ACAD版本：R14 R15 R16
//# 配合函数：
//# 类似函数：
//# 替换函数：
//# 现存缺陷：
//# 示例程序：
//# 测试要求：
//# 历史记录： 2003年11月24日 , zjw ,完成
//
//# DOC.END
int oxaGetVar(const CString strSym, double &vOut )
{
resbuf rbVar;
int iRt=acedGetVar(strSym, &rbVar) ;
if (iRt!=RTNORM)
{
return iRt;
}
if (rbVar.restype==RTREAL)
{
vOut=rbVar.resval.rreal;
}
return RTNORM;
}
/////////////////////////////////////////////////////////////////////////////////
//# DOC.BEGIN
//# 函数名称： oxaGetVar
//# 函数编号： OXA
//# 函数声明：
//# 函数参数： const CString strSym,
// CString &vOut
//# 返回值： int
//# 函数分类：
//# 函数功能：获取系统变量， 封装acedGetVar()
//# 注意事项：
//# 涉及的全局变量：
//# 调用的OXARX函数：
//# 函数算法：
//# ACAD版本：R14 R15 R16
//# 配合函数：
//# 类似函数：
//# 替换函数：
//# 现存缺陷：
//# 示例程序：
//# 测试要求：
//# 历史记录： 2003年11月24日 , zjw ,完成
//
//# DOC.END
int oxaGetVar(const CString strSym, CString &vOut )
{
resbuf rbVar;
int iRt=acedGetVar(strSym, &rbVar) ;
if (iRt!=RTNORM)
{
return iRt;
}
if (rbVar.restype==RTSTR)
{
vOut=rbVar.resval.rstring;
}
return RTNORM;
}
// 函数名 : SetCurTextStyle
// 描述 : 设置当前TextStyle
// 返回 : Acad::ErrorStatus
// 参数 : const char* lpStyleName
// 参数 : AcDbDatabase* pDb/* = NULL */
Acad::ErrorStatus SetCurTextStyle(const char* lpStyleName, AcDbDatabase* pDb/* = NULL */)
{
AcDbDatabase* pCurDb = pDb;
if (pCurDb == NULL)
pCurDb = acdbHostApplicationServices()->workingDatabase();
AcDbTextStyleTableRecordPointer spRecord(lpStyleName, pCurDb, AcDb::kForRead);
Acad::ErrorStatus es = spRecord.openStatus();
if (es == Acad::eOk)
{
es = pCurDb->setTextstyle(spRecord->objectId());
}
return es;
}
// Function name : SetCurLayer
// Descrīption : 设置当前层
// Return type : Acad::ErrorStatus
// Argument : const char* lpLayerName
// Argument : AcDbDatabase* pDb/* = NULL */
Acad::ErrorStatus SetCurLayer(const char* lpLayerName, AcDbDatabase* pDb/* = NULL */)
{
AcDbDatabase* pCurDb = pDb;
if (pCurDb == NULL)
pCurDb = acdbHostApplicationServices()->workingDatabase();
AcDbLayerTableRecordPointer spRecord(lpLayerName, pCurDb, AcDb::kForRead);
Acad::ErrorStatus es = spRecord.openStatus();
if (es == Acad::eOk)
{
es = pCurDb->setClayer(spRecord->objectId());
}
return es;
}
//获取属性块中所有属性的字符串值，并且存于链表中
CODE:
void FEGroups::iterateDictionary()
{
//obtain the GROUP dictionary by looking up "ACAD_GROUP" in the named object dictionary
//
/* AcDbDictionary *pNamedobj;
acdbHostApplicationServices()->workingDatabase()
->getNamedObjectsDictionary(pNamedobj, AcDb::kForRead);
// Get a pointer to the ASDK_DICT dictionary.
//
AcDbDictionary *pDict;
pNamedobj->getAt("ACAD_GROUP", (AcDbObject*&)pDict,
AcDb::kForRead);
pNamedobj->close();
*/
// Get a pointer to the ACAD_GROUP dictionary
AcDbDictionary *pDict;
acdbHostApplicationServices()->workingDatabase()
->getGroupDictionary(pDict, AcDb::kForRead);
// Get an iterator for the ASDK_DICT dictionary.
//
AcDbDictionaryIterator* pDictIter = pDict->newIterator();
AcDbGroup *pGroup;
char* name;
for (; !pDictIter->done(); pDictIter->next()) {
// Get the current record, open it for read, and
// print its name.
//
pDictIter->getObject((AcDbObject*&)pGroup,
AcDb::kForRead);
pGroup->getName(name);
pGroup->close();
acutPrintf("\nintval is: %s", name);
}
delete pDictIter;
pDict->close();
}
//检测AutoCAD是否已经运行
CODE:
void Autocadtest()
{
// TODO: Add your control notification handler code here
IAcadApplication m_autocad;
IAcadDocuments m_acaddocs;
IAcadDocument m_acaddoc;
IAcadModelSpace m_acadmodel;
LPDISPATCH pDisp;
LPUNKNOWN pUnk;
CLSID clsid;
BeginWaitCursor();
::CLSIDFromProgID(L"AutoCAD.Application",&clsid);
if(::GetActiveObject(clsid,NULL,&pUnk)==S_OK)
{
VERIFY(pUnk->QueryInterface(IID_IDispatch,(void**) &pDisp)==S_OK);
m_autocad.AttachDispatch(pDisp);
pUnk->Release();
}
else
{
if(!m_autocad.CreateDispatch("AutoCAD.Application"))
{
AfxMessageBox("Autocad program not found\n");
exit(1);
}
}
m_autocad.SetVisible(true);
m_acaddocs.AttachDispatch(m_autocad.GetDocuments(),true);
m_acaddoc.AttachDispatch(m_acaddocs.Add(vtMissing),true);
m_acadmodel.AttachDispatch(m_acaddoc.GetModelSpace(),true);
m_acadmodel.AddCircle(pVal,100);
m_acadmodel.ReleaseDispatch();
m_acaddoc.ReleaseDispatch();
m_acaddocs.ReleaseDispatch();
m_autocad.ReleaseDispatch();
}
//计算多边形的形心坐标
BOOL GetPolyCentroid(AcDbPolyline * pPline, ads_point CenPt)
{
unsigned int i, iCount = 0;
AcDbVoidPtrArray curveSegments, regions;
AcGePoint3d LinePt0, LinePt1;
AcGePoint3d origin;
AcGeVector3d xAxis, yAxis;
double perimeter, area, prodInertia;
double momInertia[2], prinMoments[2], radiiGyration[2];
AcGePoint2d centroid;
AcGeVector2d prinAxes[2];
AcGePoint2d extentsLow, extentsHigh;
if (pPline->isClosed() != Adesk::kTrue) {
ads_printf("\n折线不封闭, 无法形成正确的区域。");
return FALSE;
}
curveSegments.append((AcDbCurve *) pPline);
if (AcDbRegion::createFromCurves(curveSegments, regions) != Acad::eOk){
ads_printf("\n创建临时区域对象失败!");
//清除Region, 应第9 贴的指点，即使createFromCurves错误，也应清除之；
iCount = regions.length();
for(i = 0; i < iCount; i++)
delete (AcDbRegion *)regions.at(i);
return FALSE;
}
AcDbRegion * pRegion;
if ((iCount = regions.length()) == 0){
ads_printf("\n创建临时区域对象为空!");
return FALSE;
}
if (iCount > 1){
// 多个 AcDbRegion , 无法确定应该返回哪一个，干脆返回NULL;
ads_printf("\n多个区域实体。");
for(i = 0; i < iCount; i++)
delete (AcDbRegion *)regions.at(i);
return FALSE;
}
pRegion = (AcDbRegion *) regions.at(0);
origin.set(0,0,0); //设置原点坐标
xAxis.set(1,0,0); //设置X Y轴，
yAxis.set(0,1,0);
if (pRegion->getAreaProp(
origin, xAxis, yAxis,
perimeter, area, centroid, momInertia, prodInertia, prinMoments, prinAxes, radiiGyration,
extentsLow, extentsHigh) != Acad::eOk ){
ads_printf("\n区域面积: %.3f, 周长:%.3f", area, perimeter);
ads_printf("\n获取区域对象属性失败!");
delete pRegion;
return FALSE;
}
XYZ_POINT(CenPt, centroid.x, centroid.y, 0); //得到形心坐标
ads_printf("\n区域面积: %.3f, 周长:%.3f", area, perimeter);
pRegion->close();
delete pRegion;
return TRUE;
}
AcDbObjectId CreateHatch(
AcDbObjectId dbOId,
char cLayer[],
char cPattern[] = "SOLID",
int nColor = 256,
double dAngle = 0.0,
double dScale = 1.0,
AcDbDatabase * pDbDatab = acdbHostApplicationServices()->workingDatabase())
{
AcCmColor CmC;
AcDbObjectId DbOId;
AcDbObjectIdArray DbOIdA(0, 2);
AcDbBlockTable * pDbBT;
AcDbBlockTableRecord * pDbBTR;
AcGeVector3d normal(0.0, 0.0, 1.0);
DbOIdA.append(dbOId);
AcDbHatch* pDbHat = new AcDbHatch();
pDbHat->setDatabaseDefaults();
pDbHat->setAssociative(Adesk::kTrue); // BUG: doesn't do squat! have to set the reactor yourself to get associativity!
pDbHat->appendLoop(AcDbHatch::kExternal, DbOIdA);
pDbHat->setPatternScale(dScale);
pDbHat->setPatternAngle(dAngle);
pDbHat->setPattern(AcDbHatch::kPreDefined, cPattern);
pDbHat->setNormal(normal);
pDbHat->evaluateHatch(); // crucial call or nothing gets displayed!
pDbDatab->getSymbolTable(pDbBT, AcDb::kForRead);
pDbBT->getAt(ACDB_MODEL_SPACE, pDbBTR, AcDb::kForWrite);
pDbBTR->appendAcDbEntity(DbOId, pDbHat);
pDbHat->setLayer(cLayer);
CmC.setColorIndex(nColor);
((AcDbEntity *)pDbHat)->setColor(CmC);
pDbBT->close();
pDbBTR->close();
pDbHat->close();
return DbOId;
}
objectARX 常用功能实现集合
一 在ARX中禁用AutoCAD的某个命令
以LINE命令为例，在程序中加入下面的一句即可禁用LINE命令：
acedCommand(RTSTR, "undefine", RTSTR, "line",RTNONE);
下面的语句则可恢复LINE命令的定义：
acedCommand(RTSTR, "redefine", RTSTR, "line",RTNONE);
二 在对话框中预览DWG文件
使用acdbDisplayPreviewFromDwg函数，具体的方法为：
char fileName[100];
strcpy(fileName, "C:\\test.dwg");
bool es;
HWND pWnd;
CFrameWnd *pFrame = (CFrameWnd*)GetDlgItem(IDC_PICTURE);
es = acdbDisplayPreviewFromDwg(fileName, pFrame->m_hWnd);
上面的代码将在一个Picture控件中显示指定的图形。
另外，需要包含“dbmain.h”头文件。
三 通过ARX更改AutoCAD窗口的标题名称
CMDIFrameWnd *pp;
pp=acedGetAcadFrame();
pp->SetWindowText ("yourName");
pp->UpdateWindow ();
四 获得当前数据库
在ARX编程中，经常需要使用当前数据库，例如需要获得当前图形中设置的文字样式、标注样式等。
要获得当前数据库，都可以直接使用下面的方法：
AcDbTextStyleTable *pTextStyleTAble;
AcDbObjectId textstyleId;
textstyleId=acdbHostApplicationServices()->workingDatabase()->textstyle();
如果用acadCurDwg来代替acdbHostApplicationServices()->workingDatabase()，也能得到同样的结果。