UG二次开发添加接触约束和同心约束
时间: 2024-02-03 15:15:05 浏览: 64
UG的二次开发可以通过API添加接触约束和同心约束。下面是一些基本步骤:
1. 使用API创建接触约束或同心约束对象。
2. 将约束对象应用于所需的几何元素。
3. 将约束对象添加到要应用约束的组中。
4. 在应用约束之前,确保几何元素的位置和方向已经被设置为所需的状态。
例如,以下示例代码展示了如何创建一个接触约束对象并将其应用于两个球体:
```
NXOpen.Part workPart = theSession.Parts.Work;
NXOpen.Part displayPart = theSession.Parts.Display;
//创建球体
NXOpen.Features.BodyFeature ball1BodyFeature = CreateBall(0.5, 0, 0, 0.25);
NXOpen.Features.BodyFeature ball2BodyFeature = CreateBall(0.5, 0.5, 0, 0.25);
//获取球体的对象
NXOpen.Body ball1Body = (NXOpen.Body)ball1BodyFeature.GetBodies()[0];
NXOpen.Body ball2Body = (NXOpen.Body)ball2BodyFeature.GetBodies()[0];
//创建接触约束
NXOpen.Assemblies.ComponentConstraint componentConstraint1;
componentConstraint1 = workPart.ComponentAssembly.CreateComponentConstraint();
componentConstraint1.ConstraintMotion = NXOpen.Assemblies.ConstraintMotionType.Any;
componentConstraint1.ConstraintAlignment = NXOpen.Assemblies.ConstraintAlignmentType.Any;
componentConstraint1.ConstraintType = NXOpen.Assemblies.ConstraintType.Contact;
componentConstraint1.CreateConstraintReference(ball1Body, null, null);
componentConstraint1.CreateConstraintReference(ball2Body, null, null);
componentConstraint1.SetName("Contact1");
//将约束添加到组中
NXOpen.Assemblies.ComponentGroup group1 = workPart.ComponentAssembly.RootComponent.AddNewGroup();
group1.SetName("Group1");
group1.AddComponent(ball1Body.Feature, NXOpen.Assemblies.ComponentGroupUpdateOption.IncludeChildren);
group1.AddComponent(ball2Body.Feature, NXOpen.Assemblies.ComponentGroupUpdateOption.IncludeChildren);
group1.AddComponent((NXObject)componentConstraint1, NXOpen.Assemblies.ComponentGroupUpdateOption.None);
//应用约束
workPart.ComponentAssembly.ApplyConstraints(group1);
```
同样,以下示例代码展示了如何创建一个同心约束对象并将其应用于两个圆柱体的轴:
```
NXOpen.Part workPart = theSession.Parts.Work;
NXOpen.Part displayPart = theSession.Parts.Display;
//创建圆柱体
NXOpen.Features.BodyFeature cylinder1BodyFeature = CreateCylinder(0.5, 0, 0, 0.25, 1);
NXOpen.Features.BodyFeature cylinder2BodyFeature = CreateCylinder(0.5, 0.5, 0, 0.25, 1);
//获取圆柱体的对象
NXOpen.Body cylinder1Body = (NXOpen.Body)cylinder1BodyFeature.GetBodies()[0];
NXOpen.Body cylinder2Body = (NXOpen.Body)cylinder2BodyFeature.GetBodies()[0];
//获取圆柱体的轴
NXOpen.Line cylinder1Axis = (NXOpen.Line)cylinder1Body.GetGeometryObject();
NXOpen.Line cylinder2Axis = (NXOpen.Line)cylinder2Body.GetGeometryObject();
//创建同心约束
NXOpen.Assemblies.ComponentConstraint componentConstraint1;
componentConstraint1 = workPart.ComponentAssembly.CreateComponentConstraint();
componentConstraint1.ConstraintMotion = NXOpen.Assemblies.ConstraintMotionType.Any;
componentConstraint1.ConstraintAlignment = NXOpen.Assemblies.ConstraintAlignmentType.Any;
componentConstraint1.ConstraintType = NXOpen.Assemblies.ConstraintType.Concentric;
componentConstraint1.CreateConstraintReference(cylinder1Axis, null, null);
componentConstraint1.CreateConstraintReference(cylinder2Axis, null, null);
componentConstraint1.SetName("Concentric1");
//将约束添加到组中
NXOpen.Assemblies.ComponentGroup group1 = workPart.ComponentAssembly.RootComponent.AddNewGroup();
group1.SetName("Group1");
group1.AddComponent(cylinder1Body.Feature, NXOpen.Assemblies.ComponentGroupUpdateOption.IncludeChildren);
group1.AddComponent(cylinder2Body.Feature, NXOpen.Assemblies.ComponentGroupUpdateOption.IncludeChildren);
group1.AddComponent((NXObject)componentConstraint1, NXOpen.Assemblies.ComponentGroupUpdateOption.None);
//应用约束
workPart.ComponentAssembly.ApplyConstraints(group1);
```
这些示例代码仅作参考,具体的实现需要根据具体的需求进行调整。
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