|
我看了,求曲线程度的UF_CURVE_ask_arc_length这个函数,但是我写了后却没有用啊,求指教,我是新手,也不知道程序对还是不对,, V) H+ B _3 l, e
UpdateData(true);% P6 t; Y% ]" P( T
tag_t part_tag;
- G' ?! K; S4 g$ s3 l UF_PART_new("1",1,&part_tag);3 W& O; D9 Q" K7 T! c
tag_t line_tag;
% m& _9 [' l- i) x9 K5 @1 P UF_CURVE_line_t line_coords; / m7 Q+ e: `6 p7 K; W; {( O$ @7 g
line_coords.start_point[0]=x0;
1 q' |: Y# ^) f line_coords.start_point[1]=y0;8 i) g, c, A* R; Z
line_coords.start_point[2]=z0;9 ?+ n/ N( ?9 y
line_coords.end_point[0]=x1;) h' H- V* V8 r- ]
line_coords.end_point[1]=y1;
( h e1 Q8 t: U" l% v: m5 l; @3 E! b line_coords.end_point[2]=z1;
9 i2 J! {& p( x UF_CURVE_create_line(&line_coords,&line_tag);//生成直线
8 Y. [& r0 ^0 H9 o; e$ r0 s' |" w! q2 U+ ?/ x" |* b. x! a$ K( f$ w; s8 I
char buffer[UF_UI_MAX_STRING_LEN];
8 v7 ?' ?( {0 E/ Z# N2 I" Q- E double parm;/ K+ i' W; V4 }+ [9 S
parm=0;
$ L% @0 O8 S1 s double point[3];
5 k0 p* Q% p" h/ N$ A point[0]=x0;5 e0 {7 w, V6 v2 P2 Y4 f' G9 t" l
point[1]=y0;
% v6 {$ w' V! B" i* E9 J2 V5 o2 z point[2]=z0;
; c' E8 B h& u) T8 e4 r5 U( G7 C double tangent[3], p_norm[3], b_norm[3], torsion, rad_of_cur;
. F8 l/ Z- v% Q' A- j UF_MODL_ask_curve_props(line_tag,parm,point,tangent,p_norm,b_norm,&torsion,&rad_of_cur);
4 }9 f: `+ `& Q; H4 @2 T% V9 G! w double point1[3];; S/ {* S$ D* p/ f
point1[0]=x1;# c+ J) d" E8 L1 H9 N6 U
point1[1]=y1;3 y7 ~, O8 C: W
point1[2]=z1;
3 B# ~6 _! e7 K' F1 B UF_MODL_ask_curve_props(line_tag,parm,point1,tangent,p_norm,b_norm,&torsion,&rad_of_cur);
. n. N. W! ^7 P2 n( D3 e$ Z5 l6 x$ z6 J# O+ Y3 {
tag_t curve_tag;: J0 u) c0 j$ ?# j: W
curve_tag=line_tag;) u& ]+ |. K4 s+ P5 d
double start_param;
' w3 T9 \3 O; ?8 D0 V, m start_param=0.0;* d# e) y i/ O! Y: k& c
double end_param;! u% X* t: F/ T
end_param=1.0;4 E G/ x. J8 }* C* U1 k. ^/ B5 o2 q
UF_MODL_units_t unit_flag;; v8 M6 G( J) e! \
unit_flag=UF_MODL_UNITS_PART;: e' ?& R6 I9 H' T6 r4 E1 w K, ~
double *arc_length;4 c; X- T9 n+ ^6 P
UF_CURVE_ask_arc_length(curve_tag,start_param,end_param,unit_flag,arc_length);//计算曲线长度
4 v( |0 \( ]& B0 L0 R4 h
$ z7 d/ }1 l2 I& q( a, r: X1 h char meassage[133]; & Q+ T G6 Z& V( ^4 b) P, a
sprintf(meassage, "%f\n",arc_length);
4 F O7 F" h5 {0 ^' s6 Y UF_UI_write_listing_window(meassage); $ N- U/ |; I; o5 {
) c! u/ @6 p7 k/ s0 X
ShowWindow(SW_MINIMIZE); |
|