/// <summary>
/// 先检查是否能添加此种类型的约束,然后确定是否添加约束
/// </summary>
/// <param name="skeRelMgr"><see cref="ISketchRelationManager"/> Interface</param>
/// <param name="swConstraintType"><see cref="swConstraintType_e"/></param>
/// <param name="sketchRelationResult"><see cref="ISketchRelation"/> 输出参数</param>
/// <param name="entities">需要被约束的草图实体</param>
/// <returns></returns>
public static bool TryAddRelationEx(this ISketchRelationManager skeRelMgr, swConstraintType_e swConstraintType, out ISketchRelation sketchRelationResult, params object[] entities)
{
var consTypes = skeRelMgr.GetAllowedRelationsEx(entities);
if (consTypes.Contains(swConstraintType))
{
sketchRelationResult = skeRelMgr.AddRelationEx(swConstraintType, entities);
return(true);
}
else
{
sketchRelationResult = null;
return(false);
}
}
/// <summary>
/// 添加固定约束
/// </summary>
/// <param name="skeRelMgr"></param>
/// <param name="entities"></param>
/// <returns></returns>
public static ISketchRelation AddFixed(this ISketchRelationManager skeRelMgr, params object[] entities)
{
return(skeRelMgr.AddRelationEx(swConstraintType_e.swConstraintType_FIXED, entities));
}
/// <summary>
/// 对两个草图实体添加重合
/// </summary>
/// <typeparam name="TEntity1">草图实体类型</typeparam>
/// <typeparam name="TEntity2">草图实体类型</typeparam>
/// <param name="skeRelMgr"><see cref="ISketchRelationManager"/> Interface</param>
/// <param name="entity1">草图实体对象</param>
/// <param name="entity2">草图实体对象</param>
/// <returns></returns>
public static ISketchRelation AddCoincident <TEntity1, TEntity2>(this ISketchRelationManager skeRelMgr, TEntity1 entity1, TEntity2 entity2)
{
return(skeRelMgr.AddRelationEx(swConstraintType_e.swConstraintType_COINCIDENT, entity1, entity2));
}
/// <summary>
/// 获取特定实体允许的约束类型
/// </summary>
/// <param name="skeRelMgr"><see cref="ISketchRelationManager"/> Interface</param>
/// <param name="entities">entities params</param>
/// <returns></returns>
public static IEnumerable <swConstraintType_e> GetAllowedRelationsEx(this ISketchRelationManager skeRelMgr, params object[] entities)
{
return((skeRelMgr.GetAllowedRelations(entities) as object[]).Cast <swConstraintType_e>());
}
/// <summary>
/// 添加草图约束
/// </summary>
/// <param name="skeRelMgr"><see cref="ISketchRelationManager"/> Interface</param>
/// <param name="swConstraintType"><see cref="swConstraintType_e"/> Relation type 约束类型</param>
/// <param name="entities">需要被约束的实体</param>
/// <returns></returns>
public static ISketchRelation AddRelationEx(this ISketchRelationManager skeRelMgr, swConstraintType_e swConstraintType, params object[] entities)
{
//使用DispathWrapper 防止产生访问不可访问的内存的异常
return(skeRelMgr.AddRelation(ComWrapper.ObjectArrayToDispatchWrapper(entities), swConstraintType.SWToInt()));
}
public ISketchRelationManagerObject(ISketchRelationManager ISketchRelationManagerinstance)
{
ISketchRelationManagerInstance = ISketchRelationManagerinstance;
}
