2 lines
20 KiB
JavaScript
2 lines
20 KiB
JavaScript
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// https://github.com/topojson/topojson Version 3.0.2. Copyright 2017 Mike Bostock.
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(function(r,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports):"function"==typeof define&&define.amd?define(["exports"],n):n(r.topojson=r.topojson||{})})(this,function(r){"use strict";function n(r,n){var e=n.id,o=n.bbox,a=null==n.properties?{}:n.properties,i=t(r,n);return null==e&&null==o?{type:"Feature",properties:a,geometry:i}:null==o?{type:"Feature",id:e,properties:a,geometry:i}:{type:"Feature",id:e,bbox:o,properties:a,geometry:i}}function t(r,n){function t(r,n){n.length&&n.pop();for(var t=f[r<0?~r:r],e=0,o=t.length;e<o;++e)n.push(c(t[e],e));r<0&&C(n,o)}function e(r){return c(r)}function o(r){for(var n=[],e=0,o=r.length;e<o;++e)t(r[e],n);return n.length<2&&n.push(n[0]),n}function a(r){for(var n=o(r);n.length<4;)n.push(n[0]);return n}function i(r){return r.map(a)}function u(r){var n,t=r.type;switch(t){case"GeometryCollection":return{type:t,geometries:r.geometries.map(u)};case"Point":n=e(r.coordinates);break;case"MultiPoint":n=r.coordinates.map(e);break;case"LineString":n=o(r.arcs);break;case"MultiLineString":n=r.arcs.map(o);break;case"Polygon":n=i(r.arcs);break;case"MultiPolygon":n=r.arcs.map(i);break;default:return null}return{type:t,coordinates:n}}var c=A(r.transform),f=r.arcs;return u(n)}function e(r,n,t){var e,a,i;if(arguments.length>1)e=o(r,n,t);else for(a=0,e=new Array(i=r.arcs.length);a<i;++a)e[a]=a;return{type:"MultiLineString",arcs:G(r,e)}}function o(r,n,t){function e(r){var n=r<0?~r:r;(s[n]||(s[n]=[])).push({i:r,g:c})}function o(r){r.forEach(e)}function a(r){r.forEach(o)}function i(r){r.forEach(a)}function u(r){switch(c=r,r.type){case"GeometryCollection":r.geometries.forEach(u);break;case"LineString":o(r.arcs);break;case"MultiLineString":case"Polygon":a(r.arcs);break;case"MultiPolygon":i(r.arcs)}}var c,f=[],s=[];return u(n),s.forEach(null==t?function(r){f.push(r[0].i)}:function(r){t(r[0].g,r[r.length-1].g)&&f.push(r[0].i)}),f}function a(r){for(var n,t=-1,e=r.length,o=r[e-1],a=0;++t<e;)n=o,o=r[t],a+=n[0]*o[1]-n[1]*o[0];return Math.abs(a)}function i(r,n){function e(r){switch(r.type){case"GeometryCollection":r.geometries.forEach(e);break;case"Polygon":o(r.arcs);break;case"MultiPolygon":r.arcs.forEach(o)}}function o(r){r.forEach(function(n){n.forEach(function(n){(u[n=n<0?~n:n]||(u[n]=[])).push(r)})}),c.push(r)}function i(n){return a(t(r,{type:"Polygon",arcs:[n]}).coordinates[0])}var u={},c=[],f=[];return n.forEach(e),c.forEach(function(r){if(!r._){var n=[],t=[r];for(r._=1,f.push(n);r=t.pop();)n.push(r),r.forEach(function(r){r.forEach(function(r){u[r<0?~r:r].forEach(function(r){r._||(r._=1,t.push(r))})})})}}),c.forEach(function(r){delete r._}),{type:"MultiPolygon",arcs:f.map(function(n){var t,e=[];if(n.forEach(function(r){r.forEach(function(r){r.forEach(function(r){u[r<0?~r:r].length<2&&e.push(r)})})}),e=G(r,e),(t=e.length)>1)for(var o,a,c=1,f=i(e[0]);c<t;++c)(o=i(e[c]))>f&&(a=e[0],e[0]=e[c],e[c]=a,f=o);return e})}}function u(r,n,t,e){c(r,n,t),c(r,n,n+e),c(r,n+e,t)}function c(r,n,t){for(var e,o=n+(t---n>>1);n<o;++n,--t)e=r[n],r[n]=r[t],r[t]=e}function f(r){return null==r?{type:null}:("FeatureCollection"===r.type?s:"Feature"===r.type?l:h)(r)}function s(r){var n={type:"GeometryCollection",geometries:r.features.map(l)};return null!=r.bbox&&(n.bbox=r.bbox),n}function l(r){var n,t=h(r.geometry);null!=r.id&&(t.id=r.id),null!=r.bbox&&(t.bbox=r.bbox);for(n in r.properties){t.properties=r.properties;break}return t}function h(r){if(null==r)return{type:null};var n="GeometryCollection"===r.type?{type:"GeometryCollection",geometries:r.geometries.map(h)}:"Point"===r.type||"MultiPoint"===r.type?{type:r.type,coordinates:r.coordinates}:{type:r.type,arcs:r.coordinates};return null!=r.bbox&&(n.bbox=r.bbox),n}function p(r){var n,t=r[0],e=r[1];return e<t&&(n=t,t=e,e=n),t+31*e}function g(r,n){var t,e=r[0],o=r[1],a=n[0],i=n[1];return o<e&&(t=e,e=o,o=t),i<a&&(t=a,a=i,i=t),e===a&&o===i}function y(){return!0}function v(r){return r}function b(r){return null!=r.type}function m(r){var n=r[0],t=r[1],e=r[2];return Math.abs((n[0]-e[0])*(t[1]-n[1])-(n[0]-t[0])*(e[1]-n[1]))/2}function d(r){for(var n,t=-1,e=r.length,o=r[e-1],a=0;++
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