用多边形区域选择方式构造选择集的问题

王咣生

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[0] = pick[0];
newRb->resval.rpoint[1] = pick[1];
newRb->resval.rpoint[2] = pick[2];
ptList = newRb;
rbTrav = newRb;
}
else
{
acdbPointSet(pick, lastpt);
nRet = acedGetPoint(pick, "\nPick next point - [ENTER] 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[0] = pick[0];
newRb->resval.rpoint[1] = pick[1];
newRb->resval.rpoint[2] = pick[2];
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

newRb = acutNewRb(RTPOINT);
newRb->resval.rpoint[0] = pick[0];
newRb->resval.rpoint[1] = pick[1];
newRb->resval.rpoint[2] = pick[2];
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

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zfbj. 这样的讨论气氛挺好的.

王咣生

按你说的我试试.

zfbj

不用客气，大家相互合作，互相提高吧。

王咣生

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 - [ENTER] 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

newRb = acutNewRb(RTPOINT);
newRb->resval.rpoint[0] = pick[0];
newRb->resval.rpoint[1] = pick[1];
newRb->resval.rpoint[2] = pick[2];
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

仔细看看上面的贴子. newRb = acutNewRb(RTPOINT);
newRb->resval.rpoint[0] = pick[0];
newRb->resval.rpoint[1] = pick[1];
newRb->resval.rpoint[2] = pick[2];
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

你2楼的代码怎么通不过？？？


真奇怪！！

dipenghao

多谢easypower

王咣生 zfbj 三位, 尤其是zfbj，不愧为超级版主 ，

，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