3 lines
7.0 KiB
JavaScript
3 lines
7.0 KiB
JavaScript
|
// https://github.com/topojson/topojson-client v3.1.0 Copyright 2019 Mike Bostock
|
||
|
|
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t((e=e||self).topojson=e.topojson||{})}(this,function(e){"use strict";function t(e){return e}function r(e){if(null==e)return t;var r,n,o=e.scale[0],a=e.scale[1],i=e.translate[0],c=e.translate[1];return function(e,t){t||(r=n=0);var u=2,f=e.length,s=new Array(f);for(s[0]=(r+=e[0])*o+i,s[1]=(n+=e[1])*a+c;u<f;)s[u]=e[u],++u;return s}}function n(e){var t,n=r(e.transform),o=1/0,a=o,i=-o,c=-o;function u(e){(e=n(e))[0]<o&&(o=e[0]),e[0]>i&&(i=e[0]),e[1]<a&&(a=e[1]),e[1]>c&&(c=e[1])}function f(e){switch(e.type){case"GeometryCollection":e.geometries.forEach(f);break;case"Point":u(e.coordinates);break;case"MultiPoint":e.coordinates.forEach(u)}}for(t in e.arcs.forEach(function(e){for(var t,r=-1,u=e.length;++r<u;)(t=n(e[r],r))[0]<o&&(o=t[0]),t[0]>i&&(i=t[0]),t[1]<a&&(a=t[1]),t[1]>c&&(c=t[1])}),e.objects)f(e.objects[t]);return[o,a,i,c]}function o(e,t){var r=t.id,n=t.bbox,o=null==t.properties?{}:t.properties,i=a(e,t);return null==r&&null==n?{type:"Feature",properties:o,geometry:i}:null==n?{type:"Feature",id:r,properties:o,geometry:i}:{type:"Feature",id:r,bbox:n,properties:o,geometry:i}}function a(e,t){var n=r(e.transform),o=e.arcs;function a(e,t){t.length&&t.pop();for(var r=o[e<0?~e:e],a=0,i=r.length;a<i;++a)t.push(n(r[a],a));e<0&&function(e,t){for(var r,n=e.length,o=n-t;o<--n;)r=e[o],e[o++]=e[n],e[n]=r}(t,i)}function i(e){return n(e)}function c(e){for(var t=[],r=0,n=e.length;r<n;++r)a(e[r],t);return t.length<2&&t.push(t[0]),t}function u(e){for(var t=c(e);t.length<4;)t.push(t[0]);return t}function f(e){return e.map(u)}return function e(t){var r,n=t.type;switch(n){case"GeometryCollection":return{type:n,geometries:t.geometries.map(e)};case"Point":r=i(t.coordinates);break;case"MultiPoint":r=t.coordinates.map(i);break;case"LineString":r=c(t.arcs);break;case"MultiLineString":r=t.arcs.map(c);break;case"Polygon":r=f(t.arcs);break;case"MultiPolygon":r=t.arcs.map(f);break;default:return null}return{type:n,coordinates:r}}(t)}function i(e,t){var r={},n={},o={},a=[],i=-1;function c(e,t){for(var n in e){var o=e[n];delete t[o.start],delete o.start,delete o.end,o.forEach(function(e){r[e<0?~e:e]=1}),a.push(o)}}return t.forEach(function(r,n){var o,a=e.arcs[r<0?~r:r];a.length<3&&!a[1][0]&&!a[1][1]&&(o=t[++i],t[i]=r,t[n]=o)}),t.forEach(function(t){var r,a,i=function(t){var r,n=e.arcs[t<0?~t:t],o=n[0];e.transform?(r=[0,0],n.forEach(function(e){r[0]+=e[0],r[1]+=e[1]})):r=n[n.length-1];return t<0?[r,o]:[o,r]}(t),c=i[0],u=i[1];if(r=o[c])if(delete o[r.end],r.push(t),r.end=u,a=n[u]){delete n[a.start];var f=a===r?r:r.concat(a);n[f.start=r.start]=o[f.end=a.end]=f}else n[r.start]=o[r.end]=r;else if(r=n[u])if(delete n[r.start],r.unshift(t),r.start=c,a=o[c]){delete o[a.end];var s=a===r?r:a.concat(r);n[s.start=a.start]=o[s.end=r.end]=s}else n[r.start]=o[r.end]=r;else n[(r=[t]).start=c]=o[r.end=u]=r}),c(o,n),c(n,o),t.forEach(function(e){r[e<0?~e:e]||a.push([e])}),a}function c(e,t,r){var n,o,a;if(arguments.length>1)n=function(e,t,r){var n,o=[],a=[];function i(e){var t=e<0?~e:e;(a[t]||(a[t]=[])).push({i:e,g:n})}function c(e){e.forEach(i)}function u(e){e.forEach(c)}return function e(t){switch(n=t,t.type){case"GeometryCollection":t.geometries.forEach(e);break;case"LineString":c(t.arcs);break;case"MultiLineString":case"Polygon":u(t.arcs);break;case"MultiPolygon":!function(e){e.forEach(u)}(t.arcs)}}(t),a.forEach(null==r?function(e){o.push(e[0].i)}:function(e){r(e[0].g,e[e.length-1].g)&&o.push(e[0].i)}),o}(0,t,r);else for(o=0,n=new Array(a=e.arcs.length);o<a;++o)n[o]=o;return{type:"MultiLineString",arcs:i(e,n)}}function u(e,t){var r={},n=[],o=[];function c(e){e.forEach(function(t){t.forEach(function(t){(r[t=t<0?~t:t]||(r[t]=[])).push(e)})}),n.push(e)}function u(t){return function(e){for(var t,r=-1,n=e.length,o=e[n-1],a=0;++r<n;)t=o,o=e[r],a+=t[0]*o[1]-t[1]*o[0];return Math.abs(a)}(a(e,{type:"Polygon",arcs:[t]}).coordinates[0])}return t.forEach(function e(t){switch(t.type){case"GeometryCollection":t.geometries.forEach(e);break;case"Polygo
|