下面的示例突出显示嵌套块引用。如下图所示，该示例创建六个实体：三个多边形（自定义实体）和三个框。它还创建三个块参照（插入）。插入 3 （） 是包含沙子的块的插入。插入 2 （） 是包含 、 和 的块的插入。插入 1 （） 是包含 、 和 的块的插入。ins3poly3box3ins2poly2box2ins3ins1poly1box1ins2 创建嵌件后，该示例将突出显示不同的组件。  void
createInsert()
{
// Create a nested insert and try highlighting its
// various subcomponents.
//
// There are six entities in total -- three polys and
// three boxes (solids). We've named them: poly1, poly2,
// poly3, and box1, box2, box3. We also have three
// inserts: ins1, ins2, ins3.
//
// ins3 is an insert of a block that contains (poly3, box3)
// ins2 is an insert of a block that contains (poly2, box2,
// ins3).
// ins1 is an insert of a block that contains (poly1, box1,
// ins2).
//
// Let's create these entities first.
//
// Polys
//
AsdkPoly *poly1, *poly2, *poly3;
AcGeVector3d norm(0, 0, 1);
if ((poly1=new AsdkPoly)==NULL){
acutPrintf("\nOut of Memory.");
return;
}
if (poly1->set(AcGePoint2d(2, 8),AcGePoint2d(4, 8), 6, norm,
"POLY1",0)!=Acad::eOk){
acutPrintf("\nCannot create object with given parameters.");
delete poly1;
return;
}
if ((poly2=new AsdkPoly)==NULL){
acutPrintf("\nOut of Memory.");
delete poly1;
return;
}
if (poly2->set(AcGePoint2d(7, 8), AcGePoint2d(9, 8), 6, norm,
"POLY2",0)!=Acad::eOk){
acutPrintf("\nCannot create object with given parameters.");
delete poly1;
delete poly2;
return;
}
if ((poly3=new AsdkPoly)==NULL){
acutPrintf("\nOut of Memory.");
delete poly1;
delete poly2;
return;
}
if (poly3->set(AcGePoint2d(12, 8),AcGePoint2d(14, 8), 6, norm,
"POLY3",0)!=Acad::eOk){
acutPrintf("\nCannot create object with given parameters.");
delete poly1;
delete poly2;
delete poly3;
return;
}
postToDb(poly1);
postToDb(poly2);
postToDb(poly3);
// Boxes
//
AcDb3dSolid *box1, *box2, *box3;
box1 = new AcDb3dSolid();
box2 = new AcDb3dSolid();
box3 = new AcDb3dSolid();
box1->createBox(2, 2, 2);
box2->createBox(2, 2, 2);
box3->createBox(2, 2, 2);
AcGeMatrix3d mat;
mat(0, 3) = 2; mat(1, 3) = 2;
box1->transformBy(mat);
mat(0, 3) = 7; mat(1, 3) = 2;
box2->transformBy(mat);
mat(0, 3) = 12; mat(1, 3) = 2;
box3->transformBy(mat);
postToDb(box1);
postToDb(box2);
postToDb(box3);
// Inserts
//
// Arguments to BLOCK are:
// blockname,
// insert point,
// select objects,
// empty string for selection complete
// Arguments to INSERT are:
// blockname,
// insertion point,
// xscale,
// yscale,
// rotation angle
//
acedCommandS_command(RTSTR, "_globcheck", RTSHORT, 0, RTNONE);
acedCommandS(RTSTR, "BLOCK", RTSTR, "blk3", RTSTR, "0,0",
RTSTR, "14,8", RTSTR, "11,1", RTSTR, "",
RTNONE);
acedCommandS(RTSTR, "INSERT", RTSTR, "blk3", RTSTR,
"0,0", RTSHORT, 1, RTSHORT, 1, RTSHORT,
0, RTNONE);
acedCommandS(RTSTR, "BLOCK", RTSTR, "blk2", RTSTR, "0,0",
RTSTR, "9,8", RTSTR, "6,1", RTSTR, "11,1",
RTSTR, "", RTNONE);
acedCommandS(RTSTR, "INSERT", RTSTR, "blk2", RTSTR,
"0,0", RTSHORT, 1, RTSHORT, 1, RTSHORT,
0, RTNONE);
acedCommandS(RTSTR, "BLOCK", RTSTR, "blk1", RTSTR, "0,0",
RTSTR, "4,8", RTSTR, "1,1", RTSTR, "6,1",
RTSTR, "", RTNONE);
acedCommandS(RTSTR, "INSERT", RTSTR, "blk1", RTSTR,
"0,0", RTSHORT, 1, RTSHORT, 1, RTSHORT,
0, RTNONE);
return;
}
void
hilitInsert()
{
Adesk::Boolean interrupted = Adesk::kFalse;
acutPrintf("\nSelect an insert");
Acad::ErrorStatus es = Acad::eOk;
AcDbEntity *ent = NULL;
AcDbEntity *ent2 = NULL;
AcDbBlockReference *blRef = NULL;
AcDbObjectId objectId, blRefId;
ads_name ename, sset;
for (;;) {
switch (acedSSGet(NULL, NULL, NULL, NULL, sset)) {
case RTNORM:
{
struct resbuf *rb;
if (acedSSNameX(&rb, sset, 0) != RTNORM) {
acutPrintf("\n acedSSNameX failed");
acedSSFree(sset);
return;
}
int sel_method;
ads_name subname;
short marker;
AcGePoint3d pickpnt;
AcGeVector3d pickvec;
if (!extractEntityInfo(rb,
sel_method,
ename,
subname,
marker,
pickpnt,
pickvec)) {
acutPrintf("\nextractEntityInfo failed");
acedSSFree(sset);
return;
}
acedSSFree(sset);
assert(marker != 0);
if (marker == 0) {
acutPrintf("\nmarker == 0");
return;
}
// Get the insert first.
//
AOK(acdbGetObjectId(blRefId, ename));
AOK(acdbOpenAcDbEntity(ent, blRefId,
AcDb::kForRead));
assert(ent != NULL);
blRef = AcDbBlockReference::cast(ent);
if (blRef == NULL) {
acutPrintf("\nNot an insert.");
AOK(ent->close());
continue;
}
struct resbuf *insStack;
ads_point pickpoint;
ads_matrix adsmat;
pickpoint[0] = pickpnt[0];
pickpoint[1] = pickpnt[1];
pickpoint[2] = pickpnt[2];
// Now get details on the entity that was
// selected.
//
if (acedNEntSelP(NULL, ename, pickpoint, TRUE,
adsmat, &insStack) != RTNORM)
{
acutPrintf("\nFailure in acedNEntSelP");
return;
}
assert(insStack != NULL);
AOK(acdbGetObjectId(objectId, ename));
AOK(acdbOpenAcDbEntity(ent2, objectId,
AcDb::kForRead));
assert(ent2 != NULL);
// Make an array of AcDbObjectIds from the
// insertStack. Don't use the "smart array"
// AcDbObjectIdArray class, because the
// getSubentPathsAtGsMarker() function expects argument
// eight to be of type AcDbObjectId*. Just
// make room for approximately 100 IDs in the array.
//
AcDbObjectId *idArray = new AcDbObjectId[100];
int count = 0;
struct resbuf *rbIter = insStack;
AcDbObjectId objId;
acdbGetObjectId(objId, ename);
idArray[count++] = objId;
while (rbIter != NULL) {
ename[0] = rbIter->resval.rlname[0];
ename[1] = rbIter->resval.rlname[1];
acdbGetObjectId(objId, ename);
idArray[count++] = objId;
rbIter = rbIter->rbnext;
}
count--;
acutRelRb(insStack);
// First, we'll highlight an edge.
//
int numPaths;
AcDbFullSubentPath *subentPaths;
AcGeMatrix3d xform;
es = blRef->getSubentPathsAtGsMarker(
AcDb::kEdgeSubentType,
marker,
pickpnt,
xform,
numPaths,
subentPaths,
count,
idArray);
assert(numPaths == 1);
// Highlight and unhighlight the selected edge.
//
acutPrintf("\nHighlighting the first edge.");
es = blRef->highlight(subentPaths[0]);
pressEnterToContinue();
es = blRef->unhighlight(subentPaths[0]);
// If this is a solid, it will have faces.
// In this case, let's highlight them.
//
if(ent2->isKindOf(AcDb3dSolid::desc())) {
es = blRef->getSubentPathsAtGsMarker(
AcDb::kFaceSubentType,
marker,
pickpnt,
xform,
numPaths,
subentPaths,
count,
idArray);
assert(numPaths == 2);
// Highlight and unhighlight the selected
// faces.
//
acutPrintf("\nHighlighting the first"
" face.");
es = blRef->highlight(subentPaths[0]);
pressEnterToContinue();
es = blRef->unhighlight(subentPaths[0]);
acutPrintf("\nHighlighting the next face.");
es = blRef->highlight(subentPaths[1]);
pressEnterToContinue();
es = blRef->unhighlight(subentPaths[1]);
}
delete []subentPaths;
// Now, let's highlight the whole entity.
//
acutPrintf("\nHighlighting the entire entity");
AcDbFullSubentPath subPath;
for (int i = count; i >= 0; i--) {
subPath.objectIds().append(idArray[i]);
}
es = blRef->highlight(subPath);
pressEnterToContinue();
es = blRef->unhighlight(subPath);
// Finally, let's highlight each enclosing
// insert.
//
for (i = count -1; i >= 0; i --) {
subPath.objectIds().removeAt(
subPath.objectIds().length() - 1);
acutPrintf("\nHighlighting insert layer %d",
i + 1);
blRef->highlight(subPath);
pressEnterToContinue();
es = blRef->unhighlight(subPath);
}
} // case RTNORM
break;
case RTNONE:
case RTCAN:
return;
default:
continue;
} // switch
break;
} //for (;;)
AOK(ent->close());
AOK(ent2->close());
return;
}
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