Using 5.4.3ds1-4 on Debian testing The thconfig.thc at http://www.cave-registry.org.uk/svn/WookeyCatchment/SludgePit/ works fine for pdf map output, but if I try to output svg a file is produced that does not display in any of the svg programs I have. It also does not finishing compiling giving a red ERROR in xtherion The log file just seems to stop here is the end of it ##################### end of pdftex log file ##################### done writing output/SludgePitP.svg ... ####################### metapost log file ######################## This is MetaPost, version 2.00 (TeX Live 2019/dev/Debian) (kpathsea version 6.3.1/dev) 25 FEB 2019 13:01 **data.mp (/usr/share/texlive/texmf-dist/metapost/base/mpost.mp (/usr/share/texlive/texmf-dist/metapost/base/plain.mp Preloading the plain mem file, version 1.005) ) (./data.mp {randomseed:=42} [4001] [4002] [4003] [4004] [4005] [4006] [4007] [4008] [4009] [4010] [4011] [ 4012] [4013] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [Warning: scrap outline intersects itself in scrap 4PotsLowerSP2@Maze.SludgePit ] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] I have also tried xhtml which the manual says is SVG embedded in XHTML file which contains also legend and only a legend is produced. Spent a while looking at the manual and wiki pages, and not finding my mistake, can anyone help thanks Andrew