| In this thesis, the structure, design thoughts, program models and some algorithm of the CAD (computer aided design) system of drip irrigation under film for cotton are introduced. Using the modernized software programing and system integrating techniques, an advanced and Practical software is developed, which has a friendly interface and can realize man-machine conversation. And is applied in PCC (production and construction corps) of Xinjiang. Meantime, some views and directions for further study are put forward. |