NX二次开发-算法篇-找相切面

方法1：通过判断相邻面公共边的光顺性来找相切面

 1 #include <uf.h>
 2 #include <uf_modl.h>
 3 #include <uf_obj.h>
 4
 5
 6     UF_initialize();
 7
 8
 9     //获取面的所有边
10     uf_list_p_t edge_list;
11     UF_MODL_ask_face_edges(42084, &edge_list);
12
13     //获取链表的数量
14     int count;
15     UF_MODL_ask_list_count(edge_list, &count);
16
17     for (int i = 0; i < count; i++)
18     {
19         //获取链表里的tag
20         tag_t EdgeTag = NULL_TAG;
21         UF_MODL_ask_list_item(edge_list, i, &EdgeTag);
22
23         //获取边的光顺性
24         logical is_smooth;
25         UF_MODL_ask_edge_smoothness(EdgeTag, 0, &is_smooth);
26
27         if (is_smooth == true)
28         {
29             //边找面
30             uf_list_p_t face_list;
31             UF_MODL_ask_edge_faces(EdgeTag, &face_list);
32
33             //获得链表数量
34             int face_count;
35             UF_MODL_ask_list_count(face_list, &face_count);
36             for (int j = 0; j < face_count; j++)
37             {
38                 //获取链表里的tag
39                 tag_t FaceTag = NULL_TAG;
40                 UF_MODL_ask_list_item(face_list, j, &FaceTag);
41
42                 //设置颜色
43                 UF_OBJ_set_color(FaceTag, 186);
44             }
45         }
46
47     }
48
49
50     UF_terminate();

方法2：使用NXOPEN相切面方法

 1 #include <uf_defs.h>
 2 #include <uf_ui_types.h>
 3 #include <iostream>
 4 #include <NXOpen/Session.hxx>
 5 #include <NXOpen/UI.hxx>
 6 #include <NXOpen/NXMessageBox.hxx>
 7 #include <NXOpen/Callback.hxx>
 8 #include <NXOpen/NXException.hxx>
 9 #include <NXOpen/BlockStyler_UIBlock.hxx>
10 #include <NXOpen/BlockStyler_BlockDialog.hxx>
11 #include <NXOpen/BlockStyler_PropertyList.hxx>
12 #include <NXOpen/BlockStyler_Group.hxx>
13 #include <NXOpen/BlockStyler_FaceCollector.hxx>
14 #include <uf.h>
15 #include <uf_obj.h>
16 #include <NXOpen/NXObjectManager.hxx>
17 #include <NXOpen/PartCollection.hxx>
18 #include <NXOpen/Face.hxx>
19 #include <NXOpen/FaceTangentRule.hxx>
20 #include <NXOpen/ScCollectorCollection.hxx>
21 #include <NXOpen/ScRuleFactory.hxx>
22
23
24         UF_initialize();
25
26         //NXOPEN初始化
27         NXOpen::Session *theSession = NXOpen::Session::GetSession();
28         NXOpen::Part *workPart(theSession->Parts()->Work());
29         NXOpen::Part *displayPart(theSession->Parts()->Display());
30
31         //选择面控件
32         PropertyList* FaceSelectProps = face_select0->GetProperties();
33         std::vector<NXOpen::TaggedObject*> faces = FaceSelectProps->GetTaggedObjectVector("SelectedObjects");
34         delete FaceSelectProps;
35         FaceSelectProps = NULL;
36
37         tag_t FaceTag = faces[0]->Tag();
38
39         //对选中的面设置颜色
40         UF_OBJ_set_color(FaceTag, 186);
41
42         //给入一个面
43         NXOpen::Face *face1(dynamic_cast<NXOpen::Face *>(NXOpen::NXObjectManager::Get(FaceTag)));
44
45         //使用NXOPEN相切面规则
46         std::vector<NXOpen::Face *> boundaryFaces1(0);
47         NXOpen::FaceTangentRule *faceTangentRule1;
48         faceTangentRule1 = workPart->ScRuleFactory()->CreateRuleFaceTangent(face1, boundaryFaces1, 0.050000000000000003);
49         std::vector<NXOpen::SelectionIntentRule *> rules1(1);
50         rules1[0] = faceTangentRule1;
51
52         NXOpen::ScCollector* scCollector1 = workPart->ScCollectors()->CreateCollector();
53         scCollector1->ReplaceRules(rules1, false);
54
55         std::vector<NXOpen::TaggedObject*> BB = scCollector1->GetObjects();
56         for (int i = 0; i < BB.size(); i++)
57         {
58             UF_OBJ_set_color(BB[i]->Tag(), 1);
59         }
60
61         UF_terminate();

原文地址：https://www.cnblogs.com/nxopen2018/p/11070054.html