Base map CR 1:25,000 - colour seamless - 11650700

Since 2002, the ZM 25 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. Data are derived directly from the cartographic database Data10 of technology line IS SMD. The resolution of rasters is 800 dpi and the color depth is 24 bit. The distribution is in TIFF format (LZW compression). The export units are 5x5 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 25数据集采用源自捷克共和国地理数据基础库（Fundamental Base of Geographic Data of the Czech Republic，ZABAGED®）与捷克共和国地理名称数据库Geonames的数字技术制作而成。数据直接源自IS SMD技术线路的制图数据库Data10。该数据集的栅格分辨率为800dpi，色深为24比特。数据以TIFF格式分发，采用LZW压缩算法。导出单元为5×5千米的图幅，其边与S-JTSK基准轴平行。各图幅通过文本文件（TFW）完成地理配准，适配S-JTSK Krovak EN与WGS 84 / UTM 33N两种投影坐标系。