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AcGeMatrix3d有几种方法： 移动Acad::ErrorStatus Move(AcDbObjectId entId, const AcGePoint3d ptFrom, const AcGePoint3d ptTo)- z" f; Y9 r4 @; q1 g3 B
{
5 B% W, z" y' H// 构建用于实现移动实体的矩阵
& L1 s: @( T: K) J- q0 BAcGeVector3d vec(ptTo[X] – ptFrom[X], ptTo[Y] – ptFrom[X], ptTo[Z] – ptFrom[Z]);5 ]( s0 g+ e# ]6 V
AcGeMatrix3d mat;7 @) n0 [2 w% b1 @% ~: y! E
mat.setToTranslation(vec);8 n$ p) u, F+ |" r
AcDbEntity *pEnt = NULL;
$ t0 M3 Z" {, h DAcad::ErrorStatus es = acdbOpenObject(pEnt, entId,AcDb::kForWrite);0 f* w! {) n& A B* c
if (es != Acad::eOk)! ^1 x9 Q; C' @) s1 y( S
return es;
4 O' [0 `1 {3 P7 x! T) Wes = pEnt->transformBy(mat);9 @% Z+ p! }4 x0 r/ c' J
pEnt->close();; ]0 d- y! v0 J
return es;) @9 {7 n) G5 J0 Y/ f, P
} 复制BOOL Copy(AcDbObjectId entId, const AcGePoint3d ptFrom,const AcGePoint3d ptTo)2 ^& M+ l9 U; Z( O. j0 k9 M
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AcDbEntity *pEnt = NULL;
0 h& n9 G) z' p& M# {) `if (acdbOpenObject(pEnt, entId , AcDb::kForRead) != Acad::eOk)
. }9 |6 h. ]! X) ^, N9 A* Mreturn FALSE;
G: L% J& m! ~! _# CAcDbEntity *pCopyEnt = AcDbEntity::cast(pEnt->clone());2 A- E7 s: P8 l2 b/ F$ U: G
AcDbObjectId copyEntId;
# n- V( u8 Y; ]( ^+ w: |! ~if (pCopyEnt)5 X6 ^ |# z$ `, W q& ^
copyEntId = PostToModelSpace(pCopyEnt);
' J# F' |" S M3 o* D3 x' A q# hMove(copyEntId, ptFrom, ptTo); return TRUE;. {6 y Z9 Q$ i! M7 Y7 w
} 镜像Acad::ErrorStatus Mirror(AcDbObjectId entId, const AcGePoint3d dp1,const AcGePoint3d dp2)
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// 构建用于实现移动实体的矩阵
6 A! `4 P/ Y2 [; N0 x; IAcGeMatrix3d mat;AcGeLine3d line;6 I3 M1 M1 U7 e5 W( C. V- H+ _
line.set(dp1,dp2);
1 i* `; R5 x2 y2 imat.setToMirroring(line);
7 h# h3 ]$ Y" k, L z( G' @- QAcDbEntity *pEnt = NULL;4 j. H, i/ r* U% U6 n& h
Acad::ErrorStatus es = acdbOpenObject(pEnt, entId,AcDb::kForWrite);. j, O' c' r" R' B3 s% f& w
if (es != Acad::eOk)! C3 ?! G N [8 [7 m
return es;$ \" ]; b2 l" z- X B" o) ?
AcDbEntity *pCopyEnt = AcDbEntity::cast(pEnt->clone());/ z+ T* h J0 |
AcDbObjectId copyEntId;
! j2 R( K% i0 L) r5 ?if (pCopyEnt)
, U& K! Z, N* [$ ^2 M _4 |0 x8 BcopyEntId = PostToModelSpace(pCopyEnt);
% H! r! Y( r) p+ x3 Ges = pEnt->transformBy(mat);! ?* C& l; E6 q3 V* c( b
pEnt->close();
6 D! \( e4 P5 g, {5 |! w8 o7 g; hreturn es;- s$ Z* W! F& m, c8 I- |
}
5 u- T5 F: K' z R' o6 W1 tstatic AcDbObjectId PostToModelSpace(AcDbEntity* pEnt)
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AcDbBlockTable *pBlockTable;
/ }- R8 H- J8 I5 F, I$ V5 BacdbHostApplicationServices()->workingDatabase() ->getBlockTable(pBlockTable, AcDb::kForRead);
* I4 u" E8 A) Z. B- wAcDbBlockTableRecord *pBlockTableRecord;8 N$ G+ n7 m: A7 G; {
pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord, AcDb::kForWrite);
; \8 k& |% R6 `AcDbObjectId entId;
+ l9 B: d1 a; A: L% y8 S7 A+ ipBlockTableRecord->appendAcDbEntity(entId, pEnt);
4 R3 ?. Y S. D, {0 lpBlockTable->close();# h& U6 r* D) J4 s, t% T, o
pBlockTableRecord->close();
: ^+ S2 Y# b; `7 HpEnt->close();3 n- ~8 m, T- a; Z
return entId; } % o$ t* s1 ~, P
参考：http://www.colinchou.com/archives/245
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发表于 2013-12-10 16:58:30