滑坡灾害预测分区的计算机制图

The computer-assisted mapping of landslide hazard zonation

本文在滑坡灾害预测分区的信息模型基础上,重点讨论了灾害预测的计算机制图化的主要过程:因素的数值化,单元边界的确定和彩色图件的绘制。运用中国地质大学计算机系开发的Mapcad系统,在Mv/10000计算机上较好地处理了不规则图幅边界的自然裁剪,不规则单元的输入,以及彩色图件的绘制等问题。

Based on the Information Model for the zonation of landslide hazard, the computer-assisted mapping process of the hazard is emphasized in the paper, including the digitization of factors, determination of boundary, and the compilation of color map as well. The Mapcad developed by the computer department, CUG, is used well in the computer MV/10000 for the purposes: cutting of irregular map boundaries, input ot polygon mesh units, and color mapping as well. The landslide hazard zonation in Chongqing is illustrated.