关于设置图纸比例问题

lizhihome · 发表于 2009-11-28 13:11

/*
The code in the following example modifies the scale of a drawing
member view.
*/
#include <stdio.h>
#include <uf.h>
#include <uf_defs.h>
#include <uf_draw.h>
#include <uf_draw_types.h>
#include <uf_modl.h>
#include <uf_obj.h>
#include <uf_view.h>
void ufusr(char *param, int *retcod, int param_len)
{
char             drawing_name [MAX_ENTITY_NAME_SIZE] = "";
char             view_name [MAX_ENTITY_NAME_SIZE] = "";
char             error_message[MAX_LINE_SIZE + 1] = "";
tag_t             view_tag = NULL_TAG;
tag_t             drawing_tag = NULL_TAG;    // 1.这里的NULL_TAG 是什么意思?
int                ifail = 0;
tag_t             exp_tag = NULL_TAG;
double             scale;
ifail = UF_initialize();
if (!ifail)
{
      /* Get the tag of drawing. */
      ifail = UF_DRAW_ask_current_drawing (&drawing_tag);
}
if (!ifail)
{
      /* Get the name of first drawing. */
      ifail = UF_OBJ_ask_name(drawing_tag, drawing_name);  //2.这里的意思是获取该图纸的名称吗?
}
if (!ifail)
{
      /* Get the name of the drawing's first view. */    //3.如果我想获取第二个视图的名称,该怎么写?
      ifail = uc6499 (drawing_name, view_name);
}
if (!ifail)
{
      /* Get the view's tag. */
      ifail = UF_VIEW_ask_tag_of_view_name (view_name,
&view_tag);
}
  if (!ifail)
{
   ifail =  UF_DRAW_ask_view_scale (view_tag, &exp_tag,&scale);
}
if (!ifail)
{
      /* Set the parametric view scale. */
      ifail = UF_DRAW_set_view_scale (view_tag, 1.5);
}
printf ("UF_DRAW_set_view_scale sample ");
if (ifail)
{
      ifail = UF_get_fail_message( ifail, error_message );
      printf( "fails.\nError is: %s\n", error_message );
}
else
      printf( "is successful.\n" );
UF_terminate();
}

3WIE · 发表于 2010-6-5 20:53

学习来了…… 看帖回贴

olympic · 发表于 2011-5-20 12:24

1, NULL_TAG是指没有标识,这比没有赋值要好.没有赋值的话,这个变量的值就是随机的了.
2,是的
3,用这个UF_DRAW_ask_views

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