基于宗海图编绘技术规范的制图关键技术

Key Mapping Technologies of the Compilation Technical Specification of Parcel Sea Map

宗海图是海域使用申请审批相关材料的重要组成部分,是海域管理的基础资料。文章从工作底图、图件颜色和字体大小、坐标精度、界址点编号以及特殊项目宗海图绘制等方面对宗海图制图的关键技术进行了分析,总结了宗海图编绘技术规范与海籍调查规范的区别,主要包括:增加了宗海平面布置图、调整了用海图斑、重新规定了分宗编绘要求、增加了线划比例尺以及弧形圆形用海区域的绘制要求等,并给出了应加快制定海洋行业标准的建议。

Parcel sea map is not only the important part of sea area use application materials,but also the basic material of sea use management.This paper analyzed the key technologies of charting the parcel sea map in terms of working map, color, font size,coordinate precision, boundary mark number and special item map charting.This paper summed up the difference between ＂Com- pilation Technical Specification of Parcel Sea Map＂ and ＂Specification of Sea Membership Sur- vey＂, which mainly included： adding the layout chart, adjusting map patches of sea plot , redefined the compilation in cases, adding the line proportional scale, setting out the requirement of sea area use in arc-shape and round-shape,and so on.At last,it suggested that the pace in setting the marine industry standards should be fastened.