[ARX程序]：拖动的问提

bluesolar

本想通过选二直线的交点，来拖动此二直线的位置
结果，屏幕上出了一堆射线一样的怪东西
程序如下：
// LineJig.h: interface for the LineJig class.
#include "dbpl.h"

class LineJig : public AcEdJig  
{
public:
        LineJig(const AcGePoint3d point1,const AcGePoint3d point2,const AcGePoint3d point3);
        void doIt();
        virtual DragStatus sampler();
        virtual Adesk::Boolean update();       
        virtual ~LineJig();
        virtual AcDbEntity* entity()const;
private:
        AcGePoint3d mPoint;
        AcGePoint3d sPoint;
        AcGePoint3d ePoint;
    AcDbPolyline* pPolyLine;
};



// LineJig.cpp: implementation of the LineJig class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "resource.h"
#include "LineJig.h"
#include "dbjig.h"
#include "stdarx.h"
#include "geassign.h"
#include "geent3d.h"
#include "acdb.h"
#include "dbents.h" // 'old' 2D polyline
#include "dbcurve.h" // Curve base class
#include "dbmain.h" // Entity base class
#include "acgi.h"
#include "acedads.h"
#include "dbapserv.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

static AcGePoint3d midPoint;
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

LineJig::LineJig(const AcGePoint3d point1,const AcGePoint3d point2,const AcGePoint3d point3)
{
        sPoint=point1;
        mPoint=point2;
        ePoint=point3;
        pPolyLine=new AcDbPolyline();
        AcGePoint2d sPoint1,mPoint1,ePoint1;
        sPoint1.x=sPoint.x;
        sPoint1.y=sPoint.y;
        mPoint1.x=mPoint.x;
        mPoint1.y=mPoint.y;
        ePoint1.x=ePoint.x;
        ePoint1.y=ePoint.y;
        pPolyLine->addVertexAt(0,sPoint1);
    pPolyLine->addVertexAt(1,mPoint1);
        pPolyLine->addVertexAt(2,ePoint1);
}

LineJig::~LineJig()
{

}
void LineJig::doIt()
{
//        AcDbLine* line1=new AcDbLine(sPoint,mPoint);
//        AcDbLine* line2=new AcDbLine(mPoint,ePoint);
        AcEdJig::DragStatus stat;
        setDispPrompt("\n请重新选择交点：");
    stat=drag();
        if(stat=kNormal)
           append();
        else
           delete pPolyLine;
}
AcEdJig::DragStatus LineJig::sampler()  
{
        DragStatus stat=kNormal;
        setUserInputControls((UserInputControls)
                (AcEdJig::kAccept3dCoordinates));
       
        stat=acquirePoint(midPoint,sPoint);
        if(midPoint!=mPoint)
                mPoint=midPoint;
        else if(stat==AcEdJig::kNormal)
                return AcEdJig::kNoChange;
        return stat;


}
Adesk::Boolean LineJig::update()
{
        AcGePoint2d sPoint1,mPoint1,ePoint1;
        sPoint1.x=sPoint.x;
        sPoint1.y=sPoint.y;
        mPoint1.x=mPoint.x;
        mPoint1.y=mPoint.y;
        ePoint1.x=ePoint.x;
        ePoint1.y=ePoint.y;
        pPolyLine->addVertexAt(0,sPoint1);
        pPolyLine->addVertexAt(1,mPoint1);
        pPolyLine->addVertexAt(2,ePoint1);
        return Adesk::kTrue;
}
AcDbEntity* LineJig::entity()const
{
        return pPolyLine;
}


// This is command 'CRTPLINE'
void chencrtpline()
{
        // TODO: Implement the command
   ads_point joinPt;
   if(acedGetPoint(NULL,"\n请选择一个交点:",joinPt)==RTNORM);
   
        ads_name ssname;
        char sbuf[10];
    strcpy(sbuf,"LINE");
    struct resbuf eb;
    eb.restype=0;
    eb.resval.rstring=sbuf;
    eb.rbnext=NULL;
    ads_point pt1, pt2;
    pt1[X] = joinPt[X] - 1;   
    pt2[X] = joinPt[X] + 1;   
    pt1[Y] = joinPt[Y] - 1;   
    pt2[Y] = joinPt[Y] + 1;   


        acedSSGet("C", pt1, pt2,&eb,ssname);
       
        ads_name m_line1,m_line2;
        AcGeLine3d line1,line2;
        acedSSName(ssname,0,m_line1);
        acedSSName(ssname,1,m_line2);

    AcDbObjectId eId1,eId2;
    acdbGetObjectId(eId1,m_line1);
        acdbGetObjectId(eId2,m_line2);
        acedSSFree(ssname);
    AcDbLine *pEnt1,*pEnt2;
    acdbOpenObject(pEnt1,eId1,AcDb::kForRead);
        acdbOpenObject(pEnt2,eId2,AcDb::kForRead);

        AcGePoint3d point1,point2,point3;
        point2.x=joinPt[X];
        point2.y=joinPt[Y];
//        point1=point2==pEnt1->startPoint()?pEnt1->endPoint():pEnt1->startPoint();
//        point3=point2==pEnt1->startPoint()?pEnt2->endPoint():pEnt2->startPoint();
        if(point2==pEnt1->startPoint())
            point1=pEnt1->endPoint();
        else
                point1=pEnt1->startPoint();
        if(point2==pEnt2->startPoint())
            point1=pEnt2->endPoint();
        else
                point1=pEnt2->startPoint();
//        point3=point2==pEnt1->startPoint()?pEnt2->endPoint():pEnt2->startPoint();
        pEnt1->close();
        pEnt2->close();
        LineJig* pJig=new LineJig(point1,point2,point3);
        pJig->doIt();
        delete pJig;

}

能帮帮我吗？

LoveArx

应该是你sampler中的中的状态返回不对，你仔细看看。

bluesolar

sampler函数是照书抄的，其实我不是很明白。
你觉得状态返回该怎样写呢？

binbin

函数错在你addVertexAt,而没有删除.你可检查一下pline的定点数,答案就出来了^_^