如果用vc读取dxf的属性数据（有尝）

alanlus · 发表于 2003-10-29 16:44:00

如果用vc读取dxf的属性数据（有尝）
急！
QQ 16976004
MSN alan_lus@hotmail.com

huangyhg · 发表于 2003-10-31 20:04:00

通过检索“printdxf”得到一份帮助代码:
void getlast()
{
struct resbuf *ebuf, *eb;
ads_name ent1;

acdbEntLast(ent1);
ebuf = acdbEntGet(ent1);

eb = ebuf;

acutPrintf("\nResults of entgetting last entity\n");

// Print items in the list.
for (eb = ebuf; eb != NULL; eb = eb->rbnext)
      printdxf(eb);       //printdxf此函数没有类型定义？？？？报错一

// Release the acdbEntGet() list.
acutRelRb(ebuf);
}

int printdxf(eb)
struct resbuf *eb;    //这句就更不清楚是怎么回事了？又是int，又是struct
                           //而且一个指针*eb没有赋值

{
int rt;

if (eb == NULL)
      return RTNONE;

if ((eb->restype >= 0) && (eb->restype restype >= 10) && (eb->restype restype >= 38) && (eb->restype restype >= 60) && (eb->restype restype >= 210) && (eb->restype restype restype;
else
      rt = RTNONE;

switch (rt) {

case RTSHORT:
      acutPrintf("(%d . %d)\n", eb->restype,
         eb->resval.rint);
      break;

case RTREAL:
      acutPrintf("(%d . %0.3f)\n", eb->restype,
         eb->resval.rreal);
      break;

case RTSTR:
      acutPrintf("(%d . \"%s\")\n", eb->restype,
         eb->resval.rstring);
      break;

case RT3DPOINT:
      acutPrintf("(%d . %0.3f %0.3f %0.3f)\n",
         eb->restype,
         eb->resval.rpoint[X], eb->resval.rpoint[Y],
         eb->resval.rpoint[Z]);
      break;

case RTNONE:
      acutPrintf("(%d . Unknown type)\n", eb->restype);
      break;

case -1:
case -2:
// First block entity
      acutPrintf("(%d . )\n",
         eb->restype, eb->resval.rlname[0]);
}

return eb->restype;

huangyhg · 发表于 2003-10-31 20:25:00

可将帮助文件里的功能实现部分添加到你的程序当中，为何不能以函数的形式添加，
我也不知道。
void myEntityContext:nCommand(Adesk::UInt32 cmdIndex)
{

      struct resbuf *ebuf, *eb;
      ads_name  en;
acdbEntLast(en);
ebuf = acdbEntGet(en);

eb = ebuf;

acutPrintf("\nResults of entgetting last entity\n");

// Print items in the list.
for (eb = ebuf; eb != NULL; eb = eb->rbnext)
      {
      int rt;
//所选实体为形位公差类型，从autocad自带的lisp编辑器中可看到相关图元参数
      /* if (eb->restype ==-1 )
                     {acutPrintf("(%d . )\n",eb->restype, eb->resval.rlname[0]); }
      else if(eb->restype ==0)
                     {acutPrintf("(%d . \"%s\")\n", eb->restype,eb->resval.rstring); }
      else if(eb->restype ==330)
                     {acutPrintf("(%d . )\n",eb->restype, eb->resval.rlname[0]); }
      else if(eb->restype ==5)
                     {acutPrintf("(%d . \"%s\")\n", eb->restype,eb->resval.rstring); }
      else if(eb->restype ==67)
                     {acutPrintf("(%d . %d)\n", eb->restype,eb->resval.rint); }
      //else if(eb->restype ==410)
            //       {acutPrintf("(%d . %d)\n", eb->restype,eb->resval.rint); }

      if ((eb->restype >= 0) && (eb->restype restype,eb->resval.rstring); }
else if ((eb->restype >= 10) && (eb->restype restype >= 210) && (eb->restype restype,eb->resval.rpoint[X], eb->resval.rpoint[Y], eb->resval.rpoint[Z]); }
else if ((eb->restype >= 38) && (eb->restype restype,eb->resval.rreal); }
else if ((eb->restype >= 60) && (eb->restype restype,eb->resval.rint); }
//else if ((eb->restype >= 210) && (eb->restype restype restype;       acutPrintf("(%d . )\n",eb->restype, eb->resval.rlname[0]); }
else
            { rt = RTNONE;acutPrintf("(%d . Unknown type)\n", eb->restype);  }
}
从帮助项中提取的源代码，还有写Unknown type，不过，你按合适的判断语句和输出语句就可看到在正确的参数。

huangyhg · 发表于 2003-10-31 20:31:00

//再整理一下，从程序中拷出来有点乱
void myEntityContext:nCommand(Adesk::UInt32 cmdIndex)
{

struct resbuf *ebuf, *eb;
ads_name  en;
acdbEntLast(en);
ebuf = acdbEntGet(en);

eb = ebuf;

acutPrintf("\nResults of entgetting last entity\n");

// Print items in the list.
for (eb = ebuf; eb != NULL; eb = eb->rbnext)
{
  int rt;
   if ((eb->restype >= 0) && (eb->restype restype,eb->resval.rstring); }
else if ((eb->restype >= 10) && (eb->restype restype >= 210) && (eb->restype restype,eb->resval.rpoint[X], eb->resval.rpoint[Y], eb->resval.rpoint[Z]); }
else if ((eb->restype >= 38) && (eb->restype restype,eb->resval.rreal); }
else if ((eb->restype >= 60) && (eb->restype restype,eb->resval.rint); }
else if (eb->restype restype; acutPrintf("(%d . )\n",eb->restype, eb->resval.rlname[0]); }
else
  { rt = RTNONE;acutPrintf("(%d . Unknown type)\n", eb->restype);  }
}
}
呵呵，用紫光老死机，而这个又没有tab键，那就这样了

alanlus · 发表于 2003-11-1 07:45:00

您的程序不是在vc里吧？
我是要脱离cad的环境
我已经基本搞定了
谢谢您
QQ 16976440
msn alan_lus@hotmail.com

如果用vc读取dxf的属性数据（有尝）

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