|
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,
$ Q! l: B6 S) Y7 U7 s UpdateData(true);( n9 L& K% h1 d+ n! j# }
tag_t part_tag;
: J; C3 |, O p7 w1 B UF_PART_new("1",1,&part_tag);
6 h. @' w. h: g7 t9 Q' h$ b; F. y1 { tag_t line_tag;- B- d# C: |( r& P
UF_CURVE_line_t line_coords; / I9 k/ V' e( B! V, X3 V
line_coords.start_point[0]=x0;3 o. p1 [: n' X+ Q0 o
line_coords.start_point[1]=y0;' l1 y0 W" l7 {, ^6 r
line_coords.start_point[2]=z0;
( q: g6 m3 G2 q) u" d) p! F line_coords.end_point[0]=x1;5 ]* t' g, Q# W: C# Z! ^0 b3 N
line_coords.end_point[1]=y1;
Z( l! l& g9 O/ y" W2 V5 m" m line_coords.end_point[2]=z1;4 ]0 y1 V3 E4 S6 v9 x* f
UF_CURVE_create_line(&line_coords,&line_tag);//生成直线
5 h0 ^! U+ _& J3 w1 A/ X H8 F, E" ]5 E/ j
char buffer[UF_UI_MAX_STRING_LEN];7 q+ ]+ h' T. U* b6 O- ?. J+ \: \
double parm;8 A4 k- q7 t4 D
parm=0;
* T" s& U0 ]! w double point[3];8 q8 {8 q" R1 F/ v8 I
point[0]=x0;
2 K9 k* ]: C/ O, r( z point[1]=y0;/ Z) t- x# S8 p Z# P5 j( ?
point[2]=z0;
3 A3 H/ P/ _6 G4 Z# O/ H double tangent[3], p_norm[3], b_norm[3], torsion, rad_of_cur;# L, L- r% u |, o8 L
UF_MODL_ask_curve_props(line_tag,parm,point,tangent,p_norm,b_norm,&torsion,&rad_of_cur);
( q9 d0 W; ~8 C* g7 k% I& b) p double point1[3];
" }# n- d$ q: ~. A l4 j$ | point1[0]=x1;
$ q6 h5 T) n2 ]. L o9 f: M point1[1]=y1;% V$ i5 ^' b# g. w$ _" S7 M, N
point1[2]=z1;
8 _ [- M5 O2 y6 X4 f UF_MODL_ask_curve_props(line_tag,parm,point1,tangent,p_norm,b_norm,&torsion,&rad_of_cur);
6 p5 {' M0 }; _6 b# b$ J( y2 c/ a7 w: s6 x+ p) w' h- A. p; s: W2 V
tag_t curve_tag;
5 T' v' k' }7 E! H$ n3 o curve_tag=line_tag;
+ G9 p/ Y# v7 l( q! f+ _+ T double start_param;9 R+ z2 |; C' U* d" I- w
start_param=0.0;3 n+ [% n0 C$ f q: K# L& s
double end_param;
( |+ \- n1 m' Z4 Z, ]% e1 O end_param=1.0;
( v- t: k. g8 O& V UF_MODL_units_t unit_flag;
: U( d! o- w3 k9 @' @ unit_flag=UF_MODL_UNITS_PART;
h) V( T' a5 O5 j double *arc_length;9 [) Y7 J+ c% @7 Z( d. f5 D
UF_CURVE_ask_arc_length(curve_tag,start_param,end_param,unit_flag,arc_length);//计算曲线长度+ Q: a- j# Y7 h0 x
0 J; K6 }/ {9 B7 i- ^ char meassage[133]; 4 L9 Z: M5 w2 W% K& |9 [0 O" \
sprintf(meassage, "%f\n",arc_length);
+ X, Q0 m& Y9 t3 W8 e1 c UF_UI_write_listing_window(meassage);
$ @+ n9 E( [% p) z. q: J, `% m/ {6 t; {1 l) O4 ]- ]0 R2 w
ShowWindow(SW_MINIMIZE); |
|