diff --git a/src/shape_taiwan.scad b/src/shape_taiwan.scad
index 1c94f1a2..cea17175 100644
--- a/src/shape_taiwan.scad
+++ b/src/shape_taiwan.scad
@@ -8,4 +8,4 @@
 *
 **/
 
-function shape_taiwan(h) = [[3.857235,6.240775],[3.790195,6.257785],[3.735955,6.262885],[3.628068,6.245875],[3.595808,6.260195],[3.554288,6.323865],[3.516978,6.457102],[3.507678,6.536102],[3.511878,6.582842],[3.539168,6.637082],[3.489808,6.669342],[2.782860,6.839047],[2.721800,6.861117],[2.697210,6.888317],[2.684410,6.902717],[2.628400,6.942717],[2.610630,6.962087],[2.610630,6.996957],[2.625870,7.021547],[2.642880,7.043527],[2.642880,7.055487],[2.610620,7.065677],[2.563960,7.060577],[2.522270,7.048787],[2.502810,7.041087],[2.448490,7.156471],[2.293188,7.371234],[2.224378,7.425554],[2.056442,7.442484],[1.886737,7.405094],[1.739014,7.328794],[1.637949,7.238004],[1.588680,7.149744],[1.556592,7.070744],[1.544632,7.055504],[1.514903,7.041104],[1.485258,7.018954],[1.536576,6.972504],[1.588252,6.929094],[1.630956,6.862814],[1.665236,6.770334],[1.630956,6.862814],[1.613483,6.803874],[1.577574,6.837214],[1.539493,6.891164],[1.485255,6.873934],[1.438512,6.873934],[1.403813,6.866234],[1.374084,6.851744],[1.280683,6.772824],[1.206821,6.745704],[0.723984,6.656594],[0.586451,6.607414],[0.515200,6.570944],[0.458435,6.521674],[0.393838,6.479224],[0.108666,6.388434],[-0.002506,6.292504],[-0.110307,6.166930],[-0.278327,5.897845],[-0.312266,5.804525],[-0.322462,5.760475],[-0.319942,5.740765],[-0.359780,5.728045],[-0.398773,5.694105],[-0.431113,5.649215],[-0.443073,5.605085],[-0.453170,5.545625],[-0.477762,5.514295],[-0.504966,5.481955],[-0.527025,5.437905],[-0.511698,5.403035],[-0.499737,5.375915],[-0.499737,5.348715],[-0.511683,5.324125],[-0.544022,5.280075],[-0.630518,5.105233],[-0.652506,5.021183],[-0.709523,4.994063],[-0.721317,4.965173],[-0.751047,4.878513],[-0.807895,4.819223],[-0.849502,4.763133],[-0.835106,4.679163],[-0.945350,4.701233],[-1.031930,4.676643],[-1.103181,4.624763],[-1.166852,4.558563],[-1.187240,4.521253],[-1.206789,4.479813],[-1.236433,4.447553],[-1.339268,4.417823],[-1.364617,4.376213],[-1.388443,4.280373],[-1.477465,4.119932],[-1.514775,4.034192],[-1.526736,3.933212],[-1.556382,3.871222],[-1.873894,3.521621],[-1.923078,3.437571],[-1.967211,3.284795],[-2.110553,3.038618],[-2.152244,2.849458],[-2.187028,2.750918],[-2.238738,2.708638],[-2.248098,2.656758],[-2.433130,2.442837],[-2.474820,2.403927],[-2.489980,2.361477],[-2.496810,2.206174],[-2.517270,2.159514],[-2.595258,2.098284],[-2.613115,2.055834],[-2.622375,2.009260],[-2.647053,1.987280],[-2.681835,1.972793],[-2.719147,1.945587],[-2.765889,1.901371],[-2.807410,1.827678],[-2.895759,1.580743],[-2.960103,1.462665],[-3.001707,1.342230],[-3.033963,1.299783],[-3.142610,1.194507],[-3.162234,1.149449],[-3.186829,1.041731],[-3.211421,0.994987],[-3.297915,0.928032],[-3.309876,0.906048],[-3.325036,0.864443],[-3.421048,0.738702],[-3.437974,0.692212],[-3.474525,0.558807],[-3.544093,0.411083],[-3.625533,0.283068],[-3.694342,0.142925],[-3.724072,-0.047077],[-3.716342,-0.135425],[-3.674737,-0.317847],[-3.659482,-0.475761],[-3.623015,-0.539348],[-3.610290,-0.588533],[-3.625545,-0.628538],[-3.649371,-0.659782],[-3.657031,-0.687068],[-3.610289,-0.709975],[-3.610289,-0.738780],[-3.640019,-0.795629],[-3.575422,-0.918676],[-3.640019,-1.128469],[-3.654343,-1.140261],[-3.679021,-1.147841],[-3.679021,-1.147841],[-3.625532,-1.189442],[-3.595888,-1.204600],[-3.583163,-1.251343],[-3.605151,-1.243763],[-3.647598,-1.287811],[-3.684065,-1.344743],[-3.681625,-1.371861],[-3.721377,-1.382049],[-3.745972,-1.409251],[-3.797852,-1.544257],[-3.804582,-1.581567],[-3.817307,-1.611212],[-3.849563,-1.655259],[-3.876767,-1.709581],[-3.866501,-1.758935],[-3.847139,-1.808119],[-3.834343,-1.866652],[-3.853967,-1.906657],[-3.896328,-1.918449],[-3.935323,-1.940517],[-3.945517,-2.002504],[-3.903153,-2.051688],[-3.836870,-2.108458],[-3.836870,-2.108458],[-3.914521,-2.125253],[-3.924856,-2.167465],[-3.802098,-2.217177],[-3.780039,-2.241687],[-3.795366,-2.285987],[-3.841941,-2.302917],[-3.901401,-2.310517],[-3.945534,-2.332497],[-3.945534,-2.332497],[-3.909015,-2.389842],[-3.812282,-2.425988],[-3.748697,-2.453108],[-3.735901,-2.490418],[-3.610322,-2.512488],[-3.514395,-2.526978],[-3.497373,-2.605978],[-3.536452,-2.699208],[-3.610312,-2.751008],[-3.550853,-2.812998],[-3.521966,-2.867318],[-3.474548,-3.171944],[-3.462683,-3.201754],[-3.421078,-3.278054],[-3.410884,-3.312924],[-3.391356,-3.332374],[-3.371827,-3.347614],[-3.361728,-3.367234],[-3.366698,-3.403534],[-3.391374,-3.458024],[-3.391374,-3.504684],[-3.376047,-3.573324],[-3.304796,-3.728795],[-3.228491,-3.847546],[-3.186887,-3.933196],[-3.164732,-4.022386],[-3.181754,-4.086056],[-3.214010,-4.157226],[-3.189418,-4.228476],[-3.137705,-4.293156],[-2.997562,-4.423698],[-2.916122,-4.514578],[-2.856746,-4.625749],[-2.834591,-4.738605],[-2.834591,-4.738605],[-2.844781,-4.765724],[-2.642820,-4.921195],[-2.608122,-4.921195],[-2.580835,-4.911005],[-2.556243,-4.908305],[-2.512194,-4.928765],[-2.477327,-4.950745],[-2.403550,-5.014415],[-2.332216,-5.061155],[-2.176913,-5.134845],[-2.110630,-5.179905],[-2.100531,-5.199445],[-2.086040,-5.258065],[-2.068183,-5.268085],[-2.051256,-5.273285],[-2.001988,-5.302935],[-1.876413,-5.401475],[-1.844157,-5.445525],[-1.778044,-5.595775],[-1.693992,-5.701809],[-1.666872,-5.746109],[-1.359635,-6.536942],[-1.368995,-6.583512],[-1.406305,-6.638002],[-1.415565,-6.684662],[-1.415565,-6.849145],[-1.423225,-6.901025],[-1.423225,-6.930755],[-1.415565,-6.969915],[-1.329997,-7.110732],[-1.349454,-7.218450],[-1.346924,-7.253150],[-1.289990,-7.299890],[-1.239206,-7.315220],[-1.201810,-7.277830],[-1.196750,-7.176849],[-1.073620,-7.206579],[-0.953101,-7.260899],[-0.849593,-7.339819],[-0.778259,-7.442484],[-0.775729,-7.354134],[-0.795186,-7.214159],[-0.797786,-7.086059],[-0.736641,-7.029129],[-0.685014,-6.990139],[-0.645009,-6.898509],[-0.620417,-6.785653],[-0.637343,-5.770625],[-0.612751,-5.521921],[-0.590692,-5.435341],[-0.443136,-5.179899],[-0.371802,-4.923616],[-0.341989,-4.733445],[-0.290360,-4.642825],[-0.167230,-4.487353],[-0.128151,-4.411053],[-0.046711,-4.203955],[-0.014539,-4.162345],[0.027066,-4.142975],[0.191803,-3.960385],[0.441265,-3.795649],[0.515127,-3.726079],[0.588904,-3.632849],[0.620320,-3.581049],[0.640788,-3.531699],[0.643228,-3.487569],[0.633124,-3.391729],[0.640794,-3.351889],[0.689979,-3.293359],[0.903900,-3.113378],[0.923353,-3.070928],[1.083626,-2.845217],[1.116050,-2.753417],[1.162624,-2.554067],[1.233959,-2.423440],[1.261161,-2.335180],[1.278091,-2.300310],[1.310347,-2.266370],[1.384209,-2.212130],[1.416381,-2.179870],[1.490243,-2.027009],[1.504640,-1.879352],[1.502120,-1.724049],[1.526711,-1.549375],[1.558967,-1.455890],[1.598972,-1.379418],[1.706690,-1.236159],[1.741473,-1.160444],[1.982428,0.226167],[2.056374,0.376416],[2.181947,0.989965],[2.277877,1.253155],[2.329587,1.501858],[2.334687,1.601070],[2.347407,1.654466],[2.401727,1.743656],[2.421177,1.797978],[2.418777,1.847247],[2.406057,1.869143],[2.383907,1.883630],[2.361757,1.918497],[2.334727,1.999938],[2.332127,2.071360],[2.354197,2.137470],[2.467980,2.304731],[2.512030,2.492208],[2.556250,2.585528],[2.593560,2.622838],[2.699678,2.699228],[2.711468,2.721378],[2.699678,2.753638],[2.721748,2.784968],[2.792998,2.841898],[2.891448,2.975135],[2.980638,3.060784],[3.000088,3.098174],[3.000088,3.115185],[2.987368,3.137164],[2.972968,3.159234],[2.960248,3.174564],[2.945758,3.201684],[2.953458,3.221135],[2.967858,3.240755],[2.978048,3.267785],[2.984848,3.363795],[2.997568,3.412974],[3.017018,3.447754],[3.034118,3.489355],[3.027318,3.595473],[3.031518,3.644743],[3.140079,3.767706],[3.233479,3.824636],[3.273319,3.861105],[3.265719,3.903556],[3.238519,3.945166],[3.226729,3.989295],[3.233429,4.029045],[3.325149,4.080845],[3.339549,4.166585],[3.317479,4.267581],[3.278399,4.344051],[3.305599,4.363502],[3.347119,4.376222],[3.375256,4.386492],[3.411090,4.397932],[3.398688,4.425132],[3.325137,4.425408],[3.226687,4.487398],[3.172367,4.583238],[3.169767,4.706357],[3.191917,4.767497],[3.194317,4.829397],[3.142607,5.066241],[3.140007,5.179086],[3.147807,5.297090],[3.172397,5.415827],[3.206337,5.519432],[3.253837,5.593292],[3.541528,5.940365],[3.625578,6.014315],[3.945534,6.172153],[3.913274,6.211063],[3.857235,6.240775]] / 15 * h;
\ No newline at end of file
+function shape_taiwan(h) = [[3.857235,6.240775],[3.790195,6.257785],[3.735955,6.262885],[3.628068,6.245875],[3.595808,6.260195],[3.554288,6.323865],[3.516978,6.457102],[3.507678,6.536102],[3.511878,6.582842],[3.539168,6.637082],[3.489808,6.669342],[2.782860,6.839047],[2.721800,6.861117],[2.697210,6.888317],[2.684410,6.902717],[2.628400,6.942717],[2.610630,6.962087],[2.610630,6.996957],[2.625870,7.021547],[2.642880,7.043527],[2.642880,7.055487],[2.610620,7.065677],[2.563960,7.060577],[2.522270,7.048787],[2.502810,7.041087],[2.448490,7.156471],[2.293188,7.371234],[2.224378,7.425554],[2.056442,7.442484],[1.886737,7.405094],[1.739014,7.328794],[1.637949,7.238004],[1.588680,7.149744],[1.556592,7.070744],[1.544632,7.055504],[1.514903,7.041104],[1.485258,7.018954],[1.536576,6.972504],[1.588252,6.929094],[1.630956,6.862814],[1.613483,6.803874],[1.577574,6.837214],[1.539493,6.891164],[1.485255,6.873934],[1.438512,6.873934],[1.403813,6.866234],[1.374084,6.851744],[1.280683,6.772824],[1.206821,6.745704],[0.723984,6.656594],[0.586451,6.607414],[0.515200,6.570944],[0.458435,6.521674],[0.393838,6.479224],[0.108666,6.388434],[-0.002506,6.292504],[-0.110307,6.166930],[-0.278327,5.897845],[-0.312266,5.804525],[-0.322462,5.760475],[-0.319942,5.740765],[-0.359780,5.728045],[-0.398773,5.694105],[-0.431113,5.649215],[-0.443073,5.605085],[-0.453170,5.545625],[-0.477762,5.514295],[-0.504966,5.481955],[-0.527025,5.437905],[-0.511698,5.403035],[-0.499737,5.375915],[-0.499737,5.348715],[-0.511683,5.324125],[-0.544022,5.280075],[-0.630518,5.105233],[-0.652506,5.021183],[-0.709523,4.994063],[-0.721317,4.965173],[-0.751047,4.878513],[-0.807895,4.819223],[-0.849502,4.763133],[-0.835106,4.679163],[-0.945350,4.701233],[-1.031930,4.676643],[-1.103181,4.624763],[-1.166852,4.558563],[-1.187240,4.521253],[-1.206789,4.479813],[-1.236433,4.447553],[-1.339268,4.417823],[-1.364617,4.376213],[-1.388443,4.280373],[-1.477465,4.119932],[-1.514775,4.034192],[-1.526736,3.933212],[-1.556382,3.871222],[-1.873894,3.521621],[-1.923078,3.437571],[-1.967211,3.284795],[-2.110553,3.038618],[-2.152244,2.849458],[-2.187028,2.750918],[-2.238738,2.708638],[-2.248098,2.656758],[-2.433130,2.442837],[-2.474820,2.403927],[-2.489980,2.361477],[-2.496810,2.206174],[-2.517270,2.159514],[-2.595258,2.098284],[-2.613115,2.055834],[-2.622375,2.009260],[-2.647053,1.987280],[-2.681835,1.972793],[-2.719147,1.945587],[-2.765889,1.901371],[-2.807410,1.827678],[-2.895759,1.580743],[-2.960103,1.462665],[-3.001707,1.342230],[-3.033963,1.299783],[-3.142610,1.194507],[-3.162234,1.149449],[-3.186829,1.041731],[-3.211421,0.994987],[-3.297915,0.928032],[-3.309876,0.906048],[-3.325036,0.864443],[-3.421048,0.738702],[-3.437974,0.692212],[-3.474525,0.558807],[-3.544093,0.411083],[-3.625533,0.283068],[-3.694342,0.142925],[-3.724072,-0.047077],[-3.716342,-0.135425],[-3.674737,-0.317847],[-3.659482,-0.475761],[-3.623015,-0.539348],[-3.610290,-0.588533],[-3.625545,-0.628538],[-3.649371,-0.659782],[-3.657031,-0.687068],[-3.610289,-0.709975],[-3.610289,-0.738780],[-3.640019,-0.795629],[-3.575422,-0.918676],[-3.640019,-1.128469],[-3.654343,-1.140261],[-3.679021,-1.147841],[-3.625532,-1.189442],[-3.595888,-1.204600],[-3.583163,-1.251343],[-3.605151,-1.243763],[-3.647598,-1.287811],[-3.684065,-1.344743],[-3.681625,-1.371861],[-3.721377,-1.382049],[-3.745972,-1.409251],[-3.797852,-1.544257],[-3.804582,-1.581567],[-3.817307,-1.611212],[-3.849563,-1.655259],[-3.876767,-1.709581],[-3.866501,-1.758935],[-3.847139,-1.808119],[-3.834343,-1.866652],[-3.853967,-1.906657],[-3.896328,-1.918449],[-3.935323,-1.940517],[-3.945517,-2.002504],[-3.903153,-2.051688],[-3.836870,-2.108458],[-3.914521,-2.125253],[-3.924856,-2.167465],[-3.802098,-2.217177],[-3.780039,-2.241687],[-3.795366,-2.285987],[-3.841941,-2.302917],[-3.901401,-2.310517],[-3.945534,-2.332497],[-3.909015,-2.389842],[-3.812282,-2.425988],[-3.748697,-2.453108],[-3.735901,-2.490418],[-3.610322,-2.512488],[-3.514395,-2.526978],[-3.497373,-2.605978],[-3.536452,-2.699208],[-3.610312,-2.751008],[-3.550853,-2.812998],[-3.521966,-2.867318],[-3.474548,-3.171944],[-3.462683,-3.201754],[-3.421078,-3.278054],[-3.410884,-3.312924],[-3.391356,-3.332374],[-3.371827,-3.347614],[-3.361728,-3.367234],[-3.366698,-3.403534],[-3.391374,-3.458024],[-3.391374,-3.504684],[-3.376047,-3.573324],[-3.304796,-3.728795],[-3.228491,-3.847546],[-3.186887,-3.933196],[-3.164732,-4.022386],[-3.181754,-4.086056],[-3.214010,-4.157226],[-3.189418,-4.228476],[-3.137705,-4.293156],[-2.997562,-4.423698],[-2.916122,-4.514578],[-2.856746,-4.625749],[-2.834591,-4.738605],[-2.834591,-4.738605],[-2.844781,-4.765724],[-2.642820,-4.921195],[-2.608122,-4.921195],[-2.580835,-4.911005],[-2.556243,-4.908305],[-2.512194,-4.928765],[-2.477327,-4.950745],[-2.403550,-5.014415],[-2.332216,-5.061155],[-2.176913,-5.134845],[-2.110630,-5.179905],[-2.100531,-5.199445],[-2.086040,-5.258065],[-2.068183,-5.268085],[-2.051256,-5.273285],[-2.001988,-5.302935],[-1.876413,-5.401475],[-1.844157,-5.445525],[-1.778044,-5.595775],[-1.693992,-5.701809],[-1.666872,-5.746109],[-1.359635,-6.536942],[-1.368995,-6.583512],[-1.406305,-6.638002],[-1.415565,-6.684662],[-1.415565,-6.849145],[-1.423225,-6.901025],[-1.423225,-6.930755],[-1.415565,-6.969915],[-1.329997,-7.110732],[-1.349454,-7.218450],[-1.346924,-7.253150],[-1.289990,-7.299890],[-1.239206,-7.315220],[-1.201810,-7.277830],[-1.196750,-7.176849],[-1.073620,-7.206579],[-0.953101,-7.260899],[-0.849593,-7.339819],[-0.778259,-7.442484],[-0.775729,-7.354134],[-0.795186,-7.214159],[-0.797786,-7.086059],[-0.736641,-7.029129],[-0.685014,-6.990139],[-0.645009,-6.898509],[-0.620417,-6.785653],[-0.637343,-5.770625],[-0.612751,-5.521921],[-0.590692,-5.435341],[-0.443136,-5.179899],[-0.371802,-4.923616],[-0.341989,-4.733445],[-0.290360,-4.642825],[-0.167230,-4.487353],[-0.128151,-4.411053],[-0.046711,-4.203955],[-0.014539,-4.162345],[0.027066,-4.142975],[0.191803,-3.960385],[0.441265,-3.795649],[0.515127,-3.726079],[0.588904,-3.632849],[0.620320,-3.581049],[0.640788,-3.531699],[0.643228,-3.487569],[0.633124,-3.391729],[0.640794,-3.351889],[0.689979,-3.293359],[0.903900,-3.113378],[0.923353,-3.070928],[1.083626,-2.845217],[1.116050,-2.753417],[1.162624,-2.554067],[1.233959,-2.423440],[1.261161,-2.335180],[1.278091,-2.300310],[1.310347,-2.266370],[1.384209,-2.212130],[1.416381,-2.179870],[1.490243,-2.027009],[1.504640,-1.879352],[1.502120,-1.724049],[1.526711,-1.549375],[1.558967,-1.455890],[1.598972,-1.379418],[1.706690,-1.236159],[1.741473,-1.160444],[1.982428,0.226167],[2.056374,0.376416],[2.181947,0.989965],[2.277877,1.253155],[2.329587,1.501858],[2.334687,1.601070],[2.347407,1.654466],[2.401727,1.743656],[2.421177,1.797978],[2.418777,1.847247],[2.406057,1.869143],[2.383907,1.883630],[2.361757,1.918497],[2.334727,1.999938],[2.332127,2.071360],[2.354197,2.137470],[2.467980,2.304731],[2.512030,2.492208],[2.556250,2.585528],[2.593560,2.622838],[2.699678,2.699228],[2.711468,2.721378],[2.699678,2.753638],[2.721748,2.784968],[2.792998,2.841898],[2.891448,2.975135],[2.980638,3.060784],[3.000088,3.098174],[3.000088,3.115185],[2.987368,3.137164],[2.972968,3.159234],[2.960248,3.174564],[2.945758,3.201684],[2.953458,3.221135],[2.967858,3.240755],[2.978048,3.267785],[2.984848,3.363795],[2.997568,3.412974],[3.017018,3.447754],[3.034118,3.489355],[3.027318,3.595473],[3.031518,3.644743],[3.140079,3.767706],[3.233479,3.824636],[3.273319,3.861105],[3.265719,3.903556],[3.238519,3.945166],[3.226729,3.989295],[3.233429,4.029045],[3.325149,4.080845],[3.339549,4.166585],[3.317479,4.267581],[3.278399,4.344051],[3.305599,4.363502],[3.347119,4.376222],[3.375256,4.386492],[3.411090,4.397932],[3.398688,4.425132],[3.325137,4.425408],[3.226687,4.487398],[3.172367,4.583238],[3.169767,4.706357],[3.191917,4.767497],[3.194317,4.829397],[3.142607,5.066241],[3.140007,5.179086],[3.147807,5.297090],[3.172397,5.415827],[3.206337,5.519432],[3.253837,5.593292],[3.541528,5.940365],[3.625578,6.014315],[3.945534,6.172153],[3.913274,6.211063],[3.857235,6.240775]] / 15 * h;