constraint graph meaning in English
约束图
Examples
- Based on the timing constraints event model of rtl ( real time logic ) , the compiling algorithms for timing constraints event transform the problem of how to detect timing constraints event to the problem of how to find negative cycle in weighted directed graph , which is named as constraints graph . by simplifying constraints graph , the efficient detecting algorithms for timing constraints event have been developed , which not only has good time complexity but also can find events that violate timing constraints as early as possible . in order to verify the event detecting methods based on dynamic rules and to check its efficiency in application , experiment schemes are designed and performed on the implemented prototype system in linux environment
带时间约束事件的编译算法以rtl ( realtimelogic )事件模型为基础，将带时间约束事件的检测转化为在带权值的有向图(此即受限图)中寻找负圈的问题，它通过化简受限图得到最小有效约束集；运行时事件检测算法在最小有效约束集上检查事件的时间约束，不但有较好的执行效率，而且能尽早地发现违反时间约束的事件。 - Modeling in conceptual design is a key technology in cacd system . considering the characteristics of conceptual design and the feature classification of vp , this paper presents a novel virtual prototype - based product model , v - desmodel . v - desmodel introduces virtual feature concept in product ' s view models , and employs expandable 3d entity - constraint graph to describe the constraints between design objects
概念设计建模一直是计算机辅助概念设计系统的核心与关键技术，本文在分析虚拟原型的特征分类以及概念设计过程特点的基础上，提出一种基于虚拟原型的概念设计描述模型v - desmodel ，其核心特点是采用产品视图模型描述设计对象，将虚拟特征概念融入视图模型中，并采用可扩展“三维实体?约束图”描述设计对象之间的约束关系。 - At first every method of constraint solving is presented in this paper . through comparing the advantages and disadvantages of one method with another the method of constraint solving based geometrical constraint graph in which geometrical constraint system is expressed by graph , and which can deal with over - constraints and down - constraints is proposed
本文首先总结了二维参数化设计中的各种约束求解方法，并权衡每种约束求解方法的利弊，提出了基于几何约束图的约束求解方法，此方法是用图来表示几何约束系统，能够有效地处理欠约束和过约束的情况。