标签：ros segment char ini imm loading poi color style
结论：偏置的方向为曲线方向与拉伸方向的向量叉乘。
在UF_MODL_create_extrusion帮助中有这么一句话：Note that the offset direction is determined by the cross product of the direction vector of the first profile segment and the extrusion direction vector.偏移方向由“第一剖面段的方向向量”和“拉伸方向向量”的叉积决定。
猜想一下：
向量叉乘的右手定则：
验证1：
验证2：
验证3：
测试源码：
//拉伸生成片体 UF_MODL_ask_extrusion extern DllExport void ufusr(char *param, int *returnCode, int rlen) { UF_initialize(); uc1601("拉伸", 1); //tag_t tagLine = 45256; tag_t tagLine = 45950; double douAngle = 0.0; char cTaperAngle[256] = ""; sprintf(cTaperAngle, "%f", douAngle); double douLimit0 = 0.0; double douLimit1 = 10.0; char Limit0[256] = ""; sprintf(Limit0, "%f", douLimit0); char Limit1[256] = ""; sprintf(Limit1, "%f", douLimit1); tag_t objects[1] = { tagLine }; int object_count = 1; char *taper_angle = cTaperAngle; char *Limit[2] = { Limit0,Limit1 }; char * offsets[2] = { "20","0" }; double Point2[3] = { 0.0, 0.0, 0.0 }; double douDir[3] = { 0.0, 0.0, 1.0 };//拉伸方向 UF_FEATURE_SIGN Sign1 = UF_NULLSIGN; tag_t *outObjects = NULL; int iFeaturesCount = 0; UF_MODL_create_extrusion(objects, object_count, NULL, taper_angle, Limit, offsets, Point2, false, false, douDir, Sign1, &outObjects, &iFeaturesCount); UF_terminate(); } extern int ufusr_ask_unload(void) { return (UF_UNLOAD_IMMEDIATELY); }
标签：ros segment char ini imm loading poi color style
原文地址：https://www.cnblogs.com/KMould/p/14312795.html
