acedSSGet fence mode problem

[fsztuczny]

Welcome

I'm trying to use an open and not intersecting polyline to select objects using the mode of fence, but acedSSGet function returns an error code -5001 (Some other error.) I used the example code slightly modified by me (below). What is wrong there?

Regards.

resbuf*
ptArrayToResbuf(const AcGePoint3dArray& ptArray)
{
    resbuf* ptList = NULL;        // overall list
    resbuf* lastRb = NULL;        // place holder to end of list
    resbuf* rb;
    int len = ptArray.length();
    for (int i=0;i<len;i++) {
        if ((rb = acutNewRb(RT3DPOINT)) == NULL) {
            acutRelRb(ptList);
            return NULL;
        }
        ads_point_set( asDblArray(ptArray.at(i)), rb->resval.rpoint );
        if (ptList == NULL) {
            ptList = rb;
            lastRb = rb;
        }
        else {
            lastRb->rbnext = rb;
            lastRb = rb;
        }
    }
    return ptList;
}

bool fenceSelect( const AcGePoint3dArray& ptArray, ads_name& ss, const resbuf* filter )
{
	// NOTE: flags not allowed on this type of selection
    resbuf* ptList = ptArrayToResbuf(ptArray);
    if (ptList == NULL)
        return false;

    int result = acedSSGet(_T("_F"), ptList, NULL, filter, ss);
    acutRelRb(ptList);
    return result == RTNORM;
}

//CUT...

			AcGePoint3dArray arPunkty;
			for( int i = 0; i < wPlinia->numVerts(); i++ )
			{
				AcGePoint2d p2d;
				ErrorStatus eS = wPlinia->getPointAt( i, p2d );
				if( eS != eOk )
				{
					acdbFail( L"\nGet polylinie point failed!" );
					acutPrintf( L" Error code: %d", eS );
					eS = wPlinia->close();
					return;
				}	//if( eS != eOk )
				arPunkty.append( AcGePoint3d( p2d.x, p2d.y, 0 ) );
			}	//for( int i = 0; i < wPlinia->numVerts(); i++ )
			ads_name ss;
			if( !fenceSelect( arPunkty, ss, NULL ) )
			{
				acedPrompt( L"\nNothing selected!" );
				ErrorStatus eS = wPlinia->close();
				return;
			}	//if( !fenceSelect( arPunkty, NULL ) )
			
			acedSSSetFirst( ss, NULL );
			acedSSFree( ss );
			ErrorStatus eS = wPlinia->close();
			return;

[Nick1983]

resbuf* ptArrayToResbuf(const AcGePoint3dArray& ptArray)
{

...

  }

  lastRb->rbnext = NULL;

  return ptList;
}

try this one. U have to close your resbuf.

[fsztuczny]

Thank you, but I checked that acutNewRb (RT3DPOINT)) sets -> rbnext to NULL. I did like the one suggested, but it does not work. ptList to present content from one segment polyline.

ptList	0x0a8828e0 {rbnext=0x0a8831b0 restype=5009 resval={...} }	resbuf *
	rbnext	0x0a8831b0 {rbnext=0x00000000 restype=5009 resval={...} }	resbuf *
		rbnext	0x00000000 {rbnext=??? restype=??? resval={...} }	resbuf *
		restype	5009	short
		resval	{rreal=7559342609.7919188 rpoint=0x0a8831b8 rint=-21581 ...}	ads_u_val
			rreal	7559342609.7919188	double
			rpoint	0x0a8831b8	double [3]
				[0]	7559342609.7919188	double
				[1]	5614187999.5393038	double
				[2]	0.00000000000000000	double
			rint	-21581	short
			rstring	0xa11cabb3 <Bad Ptr>	wchar_t *
			rlname	0x0a8831b8	long [2]
			rlong	-1591956557	long
			rbinary	{clen=-21581 buf=0x41fc2926 <Bad Ptr> }	ads_binary
			ihandle	0x0a8831b8 "ł«ˇ&)üAý ř]ęôA"	unsigned char [8]
	restype	5009	short
	resval	{rreal=7559342118.2338028 rpoint=0x0a8828e8 rint=-16984 ...}	ads_u_val
	rreal	7559342118.2338028	double
	rpoint	0x0a8828e8	double [3]
		[0]	7559342118.2338028	double
		[1]	5614194983.2556734	double
		[2]	0.00000000000000000	double
	rint	-16984	short
	rstring	0x8263bda8 <Bad Ptr>	wchar_t *
	rlname	0x0a8828e8	long [2]
	rlong	-2107392600	long
	rbinary	{clen=-16984 buf=0x41fc2926 <Bad Ptr> }	ads_binary
	ihandle	0x0a8828e8 "¨˝c‚&)üA=tęôA"	unsigned char [8]

[fsztuczny · Accepted solution]

I found a solution: Just need to convert from WCS to UCS

ptArrayToResbuf(const AcGePoint3dArray& ptArrayWCS)
{
    resbuf* ptList = NULL;        // overall list
    resbuf* lastRb = NULL;        // place holder to end of list
    resbuf* rb;
    int len = ptArrayWCS.length();
    for (int i=0;i<len;i++) {
        if ((rb = acutNewRb(RT3DPOINT)) == NULL) {
            acutRelRb(ptList);
            return NULL;
        }
        acdbWcs2Ucs( asDblArray(ptArrayWCS.at(i)), rb->resval.rpoint, false );
        if (ptList == NULL) {
            ptList = rb;
            lastRb = rb;
        }
        else {
            lastRb->rbnext = rb;
            lastRb = rb;
        }
    }
    return ptList;
}

[Alexander.Rivilis]

---

@fsztuczny wrote:

I found a solution: Just need to convert from WCS to UCS

Also all points must be visible in current view.

[fsztuczny]

Exactly. For this purpose I use the zoom and getGeomExtents.