1·This is used to set the current layer back to the previous layer when dimensioning or text has been used.
这用于标注尺寸时,返回到前一图层设置当前图层或已使用的文本。
1·A method to build dimensioning model of 2 dimensional drawing based on undirected graph is presented.
提出了一种基于图结构描述的二维图形尺寸标注模型的建立及存储方法。