Leaf cut triangulation sheet

The meridian strips are divided into so-called triangulation sheets by longitudinal and transverse strips. Each meridian strip is divided into 15 longitudinal strips of 10 000 m width on both sides of the reference meridian. The longitudinal stripes in the west are consecutively referred to as the numbers 01 to 90. The longitudinal strips 01 to 08 and 83 to 90 are entirely outside the state territory.
The transverse stripes are divided from the equator into each 10 000 m width, with the number 01 continuously denoted starting to the north.
The data sets together comprise 1048 triangulation sheets.
The southernmost transverse strip is the 514th, which, after omission of number 5, is the name 14, the northernmost transverse strip of the 544., which is named 44. The triangulation sheet is characterised by leaf sections of a four-digit number, which is created by the juxtaposition of the corresponding longitudinal and cross stripe numbers.
The triangulation sheets form the basis for the classification and designation of folder sheets 1:1 000, 1:2 000 and 1:5 000.

本数据集的经线分带（meridian strips）依托纵向与横向分带，被划分为所谓的三角测量图幅（triangulation sheets）。每条经线分带以参考经线为基准，向两侧各划分出15条宽度为10000米的纵向分带。西侧的纵向分带依次编号为01至90，其中编号01至08与83至90的纵向分带完全位于该国国境之外。
横向分带以赤道为起点，按每10000米为一个单位进行划分，北向起始编号为01。
本数据集共计包含1048幅三角测量图幅。最南端的横向分带编号为514，去除首位数字5后编号为14；最北端的横向分带编号为544，去除首位数字5后编号为44。三角测量图幅通过将对应的纵向分带与横向分带编号拼接组合，形成四位数字的图幅编号，以此作为其标识。
上述三角测量图幅为1:1000、1:2000及1:5000比例尺的分幅图纸的分类与命名提供了基础依据。