NX二次开发-UFUN求两个向量的叉乘UF_VEC3_cross

    NX9+VS2012

	#include <uf.h>
	#include <uf_ui.h>
	#include <uf_vec.h>
	#include <uf_curve.h>


	UF_initialize();

	//创建直线1
	UF_CURVE_line_t LineCoords1;
	LineCoords1.start_point[0] = 0.0;
	LineCoords1.start_point[1] = 0.0;
	LineCoords1.start_point[2] = 0.0;
	LineCoords1.end_point[0] = 0.0;
	LineCoords1.end_point[1] = 100.0;
	LineCoords1.end_point[2] = 0.0;
	tag_t Line1Tag = NULL_TAG;
	UF_CURVE_create_line(&LineCoords1, &Line1Tag);

	//创建直线2
	UF_CURVE_line_t LineCoords2;
	LineCoords2.start_point[0] = 0.0;
	LineCoords2.start_point[1] = 0.0;
	LineCoords2.start_point[2] = 0.0;
	LineCoords2.end_point[0] = 110.0;
	LineCoords2.end_point[1] = 80.0;
	LineCoords2.end_point[2] = 0.0;
	tag_t Line2Tag = NULL_TAG;
	UF_CURVE_create_line(&LineCoords2, &Line2Tag);

	//直线1的向量方向,终点减起点
	double Vec1[3] = {LineCoords1.end_point[0]-LineCoords1.start_point[0], LineCoords1.end_point[1]-LineCoords1.start_point[1], LineCoords1.end_point[2]-LineCoords1.start_point[2]};

	//直线2的向量方向,终点减起点
	double Vec2[3] = {LineCoords2.end_point[0]-LineCoords2.start_point[0], LineCoords2.end_point[1]-LineCoords2.start_point[1], LineCoords2.end_point[2]-LineCoords2.start_point[2]};

	//求两个向量的叉乘
	double CrossProduct[3];
	UF_VEC3_cross(Vec1, Vec2, CrossProduct);

	//已知两个向量求夹角(输出的是弧度)
	double Angle;
	UF_VEC3_angle_between(Vec1, Vec2, CrossProduct, &Angle);

	//打印
	char msg[256];
	sprintf(msg, "%f",RADEG*Angle );//角度=180度/π*弧度,或者用宏定义RADEG*弧度
	uc1601(msg, 1);

	UF_terminate();