Base map CR 1:50,000 - colour seamless - 04701130

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数据集采用源自捷克共和国基础地理数据基础（ZABAGED®）与捷克共和国地理名称数据库（Geonames）的数字技术制作而成。数据直接取自IS SMD技术线的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，并使用统一栅格调色板。数据以TIFF格式（LZW压缩算法）进行分发。导出单元为边长与S-JTSK基准轴平行的10×10公里格网区块。该类格网区块通过适配S-JTSK Krovak EN与WGS 84 / UTM 33N投影坐标系的文本文件（TFW）实现坐标配准。