Base map CR 1:50,000 - colour seamless - 08101110

Since 2002, the ZM 50 is produced using digital technology from the Fundamental Base of Geographic Data of the Czech Republic (ZABAGED®) and the database of geographic names of the Czech Republic Geonames. The data are derived directly from Data50 cartographic database of IS SMD technology line. These files are by the application server service rasterized with resolution of 800 dpi, 24 bit colours and unified raster palette. The distribution is in TIFF format (LZW compression). The export units are 10x10 km segments with edges parallel to S-JTSK datum axes. Segments are georeferenced in the coordinate system using text files (TFW) for S-JTSK Krovak EN and WGS 84 / UTM zone 33N projections.自2002年起，ZM 50数据集便采用源自捷克共和国地理数据基础库（ZABAGED®，全称为Fundamental Base of Geographic Data of the Czech Republic）与捷克共和国地理名称数据库Geonames的数字技术制作完成。本数据集直接取材于IS SMD技术体系下的Data50制图数据库。上述文件经应用服务器服务完成栅格化处理，分辨率为800dpi，采用24位色彩模式与统一栅格调色板。数据以TIFF格式（采用LZW压缩算法）进行分发，导出单元为边长与S-JTSK基准坐标轴平行的10×10公里图幅。各图幅均通过文本文件（TFW）实现坐标配准，适配S-JTSK Krovak EN与WGS 84 / UTM第33北带投影坐标系。