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标题: UG二次开发利用极点创建曲线的问题，高手们请进！ [打印本页]

作者: abcd8411 时间: 2006-9-4 21:30
标题: UG二次开发利用极点创建曲线的问题，高手们请进！
试编了一小段程序，UG里运行dll时提示：“内存访问冲突”。
请教高手！是什么问题？

#include <uf.h>

#include <uf_ui.h>
#include <uf_curve.h>

#if ! defined ( __hp9000s800 ) && ! defined ( __sgi ) && ! defined ( __sun )
#       include <strstream>
# include <iostream>
# include <fstream>
# include <string>

using namespace std;
      using std:strstream;
      using std::endl;
      using std::ends;
      using std::cerr;
#else
#       include <strstream.h>
# include <iostream.h>
#endif
#include "curves.h"

//----------------------------------------------------------------------------
//  Activation Methods
//----------------------------------------------------------------------------

//  Explicit Activation
//    This entry point is used to activate the application explicitly, as in
//    "File->Execute UG/Open->User Function..."
extern "C" DllExport void ufusr( char *parm, int *returnCode, int rlen )
{
/* Initialize the API environment */

int errorCode = UF_initialize();

if ( 0 == errorCode )
{

      /* TODO: Add your application code here */

            /*create a new prt*/
            char part_name[133]="d:\\kk.prt";
            int units=1;
      tag_t part;
      UF_PART_new(part_name,units,&part);

         UF_CURVE_spline_t splinedata;
            tag_p_t splinetag;
            int *num_states;
      UF_CURVE_state_p_t *states=NULL;
splinedata.is_rational=1;
splinedata.num_poles=4;
splinedata.order=3;
splinedata.poles[0][0]=111;
splinedata.poles[0][1]=31;
splinedata.poles[0][2]=46;
splinedata.poles[0][3]=1;
splinedata.poles[1][0]=107;
splinedata.poles[1][1]=46;
splinedata.poles[1][2]=46;
splinedata.poles[1][3]=1;
splinedata.poles[2][0]=98;
splinedata.poles[2][1]=37;
splinedata.poles[2][2]=46;
splinedata.poles[2][3]=1;
splinedata.poles[3][0]=100;
splinedata.poles[3][1]=35;
splinedata.poles[3][2]=46;
splinedata.poles[3][3]=1;


UF_CURVE_create_spline (&splinedata,splinetag,num_states,states);

}
      errorCode = UF_terminate();

/* Print out any error messages */
PrintErrorMessage( errorCode );
}

//----------------------------------------------------------------------------
//  Utilities
//----------------------------------------------------------------------------

// Unload Handler
//    This function specifies when to unload your application from Unigraphics.
//    If your application registers a callback (from a MenuScript item or a
//    User Defined Object for example), this function MUST return
//    "UF_UNLOAD_UG_TERMINATE".
extern "C" int ufusr_ask_unload( void )
{
return( UF_UNLOAD_UG_TERMINATE );
}

}

作者: wgwang 时间: 2006-9-5 15:31
内存冲突的原因是你没有给数组分配空间，在splinedata.order=3;后加上这句试试：

splinedata.poles= (double *) UF_allocate_memory( 4*splinedata.num_poles*sizeof(double),&errorcode);

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