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/*/ B, F! K# w5 I) K
The code in the following example modifies the scale of a drawing
, z5 y. ~# V; P2 }3 R0 k$ nmember view.
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#include <stdio.h> m2 t; v" _: c, T+ O9 X& @
#include <uf.h>
) r" V8 A2 B* N9 r#include <uf_defs.h>4 r. V8 Z: `9 h7 G6 u2 @2 }
#include <uf_draw.h>
4 P H Y& Z, v4 ~#include <uf_draw_types.h>: q4 C0 _" m& H" y
#include <uf_modl.h>
& d# h: |! C7 |#include <uf_obj.h>
. i2 `6 h0 }# c2 o% S; O* V, j#include <uf_view.h># T& V( ?4 T9 o$ l
void ufusr(char *param, int *retcod, int param_len)1 U" J9 ^$ |! `4 _4 |& V
{
6 ?2 k* M' k3 q char drawing_name [MAX_ENTITY_NAME_SIZE] = "";
* n$ | P0 Z" {8 |& e' o1 a: l char view_name [MAX_ENTITY_NAME_SIZE] = "";
) g) E8 D' [- U1 X5 } char error_message[MAX_LINE_SIZE + 1] = "";
% |" W2 h& i+ a0 P+ Y' e2 H( n6 S tag_t view_tag = NULL_TAG;
& Y x5 Q0 Y( [9 v& U0 z+ j: t tag_t drawing_tag = NULL_TAG; // 1.这里的NULL_TAG 是什么意思?
5 _, g! F) X* e% H5 }: E int ifail = 0;' O$ h( k3 d4 L I6 F* ~+ I
tag_t exp_tag = NULL_TAG;
0 j. y" I0 }. Z1 q! g double scale;0 n( h, k ~9 h& y. j
ifail = UF_initialize();1 F0 |% `# Y8 C! B4 l
if (!ifail)
V( C, K" H/ ]6 k' n1 I {
# O+ b0 m6 P- g: w% I# `2 V /* Get the tag of drawing. */
) Q. t6 V; a3 I9 z ifail = UF_DRAW_ask_current_drawing (&drawing_tag);) Y7 I' |, l/ f5 P
}
* k& d- t& n( M' s6 `- u3 f if (!ifail)8 f. C+ R9 _6 C
{
# F, c6 {; y! z4 l/ _. r0 I /* Get the name of first drawing. */
$ M0 d0 z8 m6 O 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?2 H" ~2 O' M4 \1 J" w/ ?
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if (!ifail)0 @/ I" O! c/ R0 P" h
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/* 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?, _6 ]0 C5 D$ Z( Y: S
ifail = uc6499 (drawing_name, view_name);9 P$ C! e" {" J3 [" X
}
0 D6 Q8 Y# V2 F, e if (!ifail)6 {$ \; M! l& q' C7 `8 @4 O
{
2 Z! _0 z+ X1 h, d /* Get the view's tag. */
: B6 } a3 e5 r0 y# @, V ifail = UF_VIEW_ask_tag_of_view_name (view_name,9 @& B6 ], c! G4 T
&view_tag);8 k* P1 ?/ m5 Q! r c; x. N. ?
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if (!ifail)& A: f& [# ?) ?( @: x z
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ifail = UF_DRAW_ask_view_scale (view_tag, &exp_tag,&scale);
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if (!ifail)) N9 M# a# R- l: l7 l! b7 s" p% L
{
) \) K6 d# ?% h- o) @$ h /* Set the parametric view scale. */& |$ B1 ^$ M0 Y H
ifail = UF_DRAW_set_view_scale (view_tag, 1.5);
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printf ("UF_DRAW_set_view_scale sample ");
) \2 x. Q# @) E5 @, | if (ifail)& J$ p0 ~0 {; Q) f; e
{
" V; q+ e" P) V7 |5 Z3 W ifail = UF_get_fail_message( ifail, error_message );3 i# b6 e6 T; o. M0 Y+ W C
printf( "fails.\nError is: %s\n", error_message );
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else. O& w) S, o6 D# }" I
printf( "is successful.\n" );
$ b: N& t3 q) F9 w, f/ P0 W% m UF_terminate();. }( s0 N- ^! }- r# k# [
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