用多边形区域选择方式构造选择集的问题 - ObjectARX/VC++ 编程技术 - AutoCAD论坛 - 明经CAD社区 - 第2页

王咣生 发表于 2004-9-25 11:44:00

成功了

调试通过的代码:

// ----- asdkDynRb._DYNRB command (do not rename) static void asdkDynRb_DYNRB(void) { // Add your code for command asdkDynRb._DYNRB here ads_point firstpt, pick, lastpt; int nRet; ads_name ss; struct resbuf *ptList = NULL; struct resbuf *rbTrav ; struct resbuf *newRb; Adesk::Boolean keepPicking = Adesk::kTrue; Adesk::Boolean firstPick = Adesk::kTrue;

while (keepPicking) { if (firstPick) { nRet = acedGetPoint(NULL, "\nPick first point: ", pick); acdbPointSet(pick, firstpt); firstPick = Adesk::kFalse;

newRb = acutNewRb(RTPOINT); newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; ptList = newRb; rbTrav = newRb; } else { acdbPointSet(pick, lastpt); nRet = acedGetPoint(pick, "\nPick next point - for exit: ", pick); if (nRet != RTNORM) { acedGrDraw(lastpt, firstpt, 1, 0); keepPicking = Adesk::kFalse; break; }

acedGrDraw(lastpt, pick, 1, 0); newRb = acutNewRb(RTPOINT); newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; rbTrav->rbnext = newRb; rbTrav = rbTrav->rbnext; } }// while // Clear out the grdraw drawn vectors //acedRedraw(NULL, 1);

rbTrav->rbnext = NULL;

 nRet = acedSSGet("CP", ptList, NULL, NULL, ss);

if (nRet == RTNORM) { long nEnts; nRet = acedSSLength(ss, &nEnts); if (nRet == RTNORM) { CString str; str.Format("%d", nEnts); acedAlert(str); for (int i = 0; i < nEnts; i++) { ads_name eName; acedSSName(ss, i, eName); AcDbObjectId id; acdbGetObjectId(id, eName); AcDbObjectPointer<AcDbEntity> ent (id, AcDb::kForRead); if (ent.openStatus() == Acad::eOk) { ent->highlight(); } } } } else acedAlert("选择失败");

if (ss) acedSSFree(ss); }

zfbj 发表于 2004-9-25 11:49:00

newRb = acutNewRb(RTPOINT); newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; rbTrav->rbnext = newRb; 

改成

rbTrav->rbnext = acutBuildList(RTPOINT, pick, RTNONE);

试试看。

不行的话你把跟踪的结果告诉我。

王咣生 发表于 2004-9-25 11:54:00

问题并不在那儿:

rbTrav->rbnext = NULL;

相当于

newRb = acutNewRb(RTNONE);

这与你的 rbTrav->rbnext = acutBuildList(RTPOINT, pick, RTNONE); 中的RTNONE可能是冲突的.

总之现在可以了, 感谢<A name=54748>zfbj</A>. 这样的讨论气氛挺好的.

王咣生 发表于 2004-9-25 11:58:00

按你说的我试试.

zfbj 发表于 2004-9-25 11:58:00

不用客气，大家相互合作，互相提高吧。

王咣生 发表于 2004-9-25 12:06:00

试过了,

rbTrav->rbnext = newRb; //rbTrav->rbnext = acutBuildList(RTPOINT, pick, RTNONE);

两种写法都可以,

//rbTrav->rbnext = NULL; 一句似乎也没起什么作用,

还是以前的建立链表代码有问题.

更改后的代码: // ----- asdkDynRb._DYNRB command (do not rename) static void asdkDynRb_DYNRB(void) { // Add your code for command asdkDynRb._DYNRB here ads_point firstpt, pick, lastpt; int nRet; ads_name ss; struct resbuf *ptList = NULL; struct resbuf *rbTrav ; Adesk::Boolean keepPicking = Adesk::kTrue; Adesk::Boolean firstPick = Adesk::kTrue; while (keepPicking) { if (firstPick) { nRet = acedGetPoint(NULL, "\nPick first point: ", pick); acdbPointSet(pick, firstpt); firstPick = Adesk::kFalse; ptList = acutBuildList(RTPOINT, pick, RTNONE); rbTrav = ptList; } else { acdbPointSet(pick, lastpt); nRet = acedGetPoint(pick, "\nPick next point - for exit: ", pick); if (nRet != RTNORM) { acedGrDraw(lastpt, firstpt, 1, 0); keepPicking = Adesk::kFalse; break; } acedGrDraw(lastpt, pick, 1, 0); rbTrav->rbnext = acutBuildList(RTPOINT, pick, RTNONE); rbTrav = rbTrav->rbnext; } }// while // Clear out the grdraw drawn vectors //acedRedraw(NULL, 1); nRet = acedSSGet("CP", ptList, NULL, NULL, ss); if (nRet == RTNORM) { long nEnts; nRet = acedSSLength(ss, &nEnts); if (nRet == RTNORM) { CString str; str.Format("%d", nEnts); acedAlert(str); for (int i = 0; i < nEnts; i++) { ads_name eName; acedSSName(ss, i, eName); AcDbObjectId id; acdbGetObjectId(id, eName); AcDbObjectPointer<AcDbEntity> ent (id, AcDb::kForRead); if (ent.openStatus() == Acad::eOk) { ent->highlight(); } } } } else acedAlert("选择失败"); if (ss) acedSSFree(ss); }

easypower 发表于 2004-9-25 13:29:00

newRb = acutNewRb(RTPOINT); newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; rbTrav->rbnext = newRb; rbTrav = rbTrav->rbnext; 为何不行？？？

一定要这个么？？rbTrav->rbnext = acutBuildList(RTPOINT, pick, RTNONE);

王咣生 发表于 2004-9-25 16:15:00

仔细看看上面的贴子.

newRb = acutNewRb(RTPOINT); newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; newRb->resval.rpoint = pick; rbTrav->rbnext = newRb; rbTrav = rbTrav->rbnext;

也可以呀,

rbTrav->rbnext = acutBuildList(RTPOINT, pick, RTNONE);这是zfbj后来给出的方法.

easypower 发表于 2004-9-27 08:44:00

你2楼的代码怎么通不过？？？

真奇怪！！

dipenghao 发表于 2004-9-27 16:06:00

多谢<A name=55195>easypower</A>
<TABLE cellPadding=4 cellSpacing=0 width="100%">
<TBODY>
<TR>
<TD style="FILTER: glow(color=#9898BA,strength=2)" vAlign=center width=*><A name=54829>王咣生</A> <A name=54748>zfbj</A> 三位, 尤其是zfbj，不愧为超级版主，</TD></TR></TBODY></TABLE>，我现在正在做二次开发方面的，以后还请三位多多指教，给三位送花呵呵

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成功了

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