因为异型折叠纸盒结构复杂，使得其尺寸标注存在一定的难度。提出了在OpenGL开发环境下，通过对尺寸要素的函数封装和参数解析等方法，实现了异型纸盒尺寸的自动标注。研究结果表明，这种方法可以达到标注要素完整、布局合理等要求。

Unusual folding carton structure is irregular in shape; it is difficult to realize appropriate automatic dimension. A new method of design ideas and solutions about automatic dimension of package carton was put forward, which was based on OpenGL technology with some sealed functions and parameter analysis. The result showed that this method is able to meet the demand of integrality and reasonable layout for all kinds of dimension of unusual folding cartons.