topojson - npm Package Compare versions

Comparing version 1.6.26 to 1.6.27

build/bundle.js

@@ -1,1 +0,1 @@
-var version = "1.6.26"; export * from "../client"; export {version};
+var version = "1.6.27"; export * from "../client"; export {version};

build/topojson.js

@@ -5,542 +5,544 @@ (function (global, factory) {
   (factory((global.topojson = global.topojson || {})));
-}(this, function (exports) { 'use strict';
+}(this, (function (exports) { 'use strict';
 
-  function noop() {}
+function noop() {}
 
-  function transformAbsolute(transform) {
-    if (!transform) return noop;
-    var x0,
-        y0,
-        kx = transform.scale[0],
-        ky = transform.scale[1],
-        dx = transform.translate[0],
-        dy = transform.translate[1];
-    return function(point, i) {
-      if (!i) x0 = y0 = 0;
-      point[0] = (x0 += point[0]) * kx + dx;
-      point[1] = (y0 += point[1]) * ky + dy;
-    };
-  }
+function transformAbsolute(transform) {
+  if (!transform) return noop;
+  var x0,
+      y0,
+      kx = transform.scale[0],
+      ky = transform.scale[1],
+      dx = transform.translate[0],
+      dy = transform.translate[1];
+  return function(point, i) {
+    if (!i) x0 = y0 = 0;
+    point[0] = (x0 += point[0]) * kx + dx;
+    point[1] = (y0 += point[1]) * ky + dy;
+  };
+}
 
-  function transformRelative(transform) {
-    if (!transform) return noop;
-    var x0,
-        y0,
-        kx = transform.scale[0],
-        ky = transform.scale[1],
-        dx = transform.translate[0],
-        dy = transform.translate[1];
-    return function(point, i) {
-      if (!i) x0 = y0 = 0;
-      var x1 = Math.round((point[0] - dx) / kx),
-          y1 = Math.round((point[1] - dy) / ky);
-      point[0] = x1 - x0;
-      point[1] = y1 - y0;
-      x0 = x1;
-      y0 = y1;
-    };
-  }
+function transformRelative(transform) {
+  if (!transform) return noop;
+  var x0,
+      y0,
+      kx = transform.scale[0],
+      ky = transform.scale[1],
+      dx = transform.translate[0],
+      dy = transform.translate[1];
+  return function(point, i) {
+    if (!i) x0 = y0 = 0;
+    var x1 = Math.round((point[0] - dx) / kx),
+        y1 = Math.round((point[1] - dy) / ky);
+    point[0] = x1 - x0;
+    point[1] = y1 - y0;
+    x0 = x1;
+    y0 = y1;
+  };
+}
 
-  function reverse(array, n) {
-    var t, j = array.length, i = j - n;
-    while (i < --j) t = array[i], array[i++] = array[j], array[j] = t;
+function reverse(array, n) {
+  var t, j = array.length, i = j - n;
+  while (i < --j) t = array[i], array[i++] = array[j], array[j] = t;
+}
+
+function bisect(a, x) {
+  var lo = 0, hi = a.length;
+  while (lo < hi) {
+    var mid = lo + hi >>> 1;
+    if (a[mid] < x) lo = mid + 1;
+    else hi = mid;
   }
+  return lo;
+}
 
-  function bisect(a, x) {
-    var lo = 0, hi = a.length;
-    while (lo < hi) {
-      var mid = lo + hi >>> 1;
-      if (a[mid] < x) lo = mid + 1;
-      else hi = mid;
+function feature(topology, o) {
+  return o.type === "GeometryCollection" ? {
+    type: "FeatureCollection",
+    features: o.geometries.map(function(o) { return feature$1(topology, o); })
+  } : feature$1(topology, o);
+}
+
+function feature$1(topology, o) {
+  var f = {
+    type: "Feature",
+    id: o.id,
+    properties: o.properties || {},
+    geometry: object(topology, o)
+  };
+  if (o.id == null) delete f.id;
+  return f;
+}
+
+function object(topology, o) {
+  var absolute = transformAbsolute(topology.transform),
+      arcs = topology.arcs;
+
+  function arc(i, points) {
+    if (points.length) points.pop();
+    for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length, p; k < n; ++k) {
+      points.push(p = a[k].slice());
+      absolute(p, k);
     }
-    return lo;
+    if (i < 0) reverse(points, n);
   }
 
-  function feature(topology, o) {
-    return o.type === "GeometryCollection" ? {
-      type: "FeatureCollection",
-      features: o.geometries.map(function(o) { return feature$1(topology, o); })
-    } : feature$1(topology, o);
+  function point(p) {
+    p = p.slice();
+    absolute(p, 0);
+    return p;
   }
 
-  function feature$1(topology, o) {
-    var f = {
-      type: "Feature",
-      id: o.id,
-      properties: o.properties || {},
-      geometry: object(topology, o)
-    };
-    if (o.id == null) delete f.id;
-    return f;
+  function line(arcs) {
+    var points = [];
+    for (var i = 0, n = arcs.length; i < n; ++i) arc(arcs[i], points);
+    if (points.length < 2) points.push(points[0].slice());
+    return points;
   }
 
-  function object(topology, o) {
-    var absolute = transformAbsolute(topology.transform),
-        arcs = topology.arcs;
+  function ring(arcs) {
+    var points = line(arcs);
+    while (points.length < 4) points.push(points[0].slice());
+    return points;
+  }
 
-    function arc(i, points) {
-      if (points.length) points.pop();
-      for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length, p; k < n; ++k) {
-        points.push(p = a[k].slice());
-        absolute(p, k);
-      }
-      if (i < 0) reverse(points, n);
-    }
+  function polygon(arcs) {
+    return arcs.map(ring);
+  }
 
-    function point(p) {
-      p = p.slice();
-      absolute(p, 0);
-      return p;
-    }
+  function geometry(o) {
+    var t = o.type;
+    return t === "GeometryCollection" ? {type: t, geometries: o.geometries.map(geometry)}
+        : t in geometryType ? {type: t, coordinates: geometryType[t](o)}
+        : null;
+  }
 
-    function line(arcs) {
-      var points = [];
-      for (var i = 0, n = arcs.length; i < n; ++i) arc(arcs[i], points);
-      if (points.length < 2) points.push(points[0].slice());
-      return points;
-    }
+  var geometryType = {
+    Point: function(o) { return point(o.coordinates); },
+    MultiPoint: function(o) { return o.coordinates.map(point); },
+    LineString: function(o) { return line(o.arcs); },
+    MultiLineString: function(o) { return o.arcs.map(line); },
+    Polygon: function(o) { return polygon(o.arcs); },
+    MultiPolygon: function(o) { return o.arcs.map(polygon); }
+  };
 
-    function ring(arcs) {
-      var points = line(arcs);
-      while (points.length < 4) points.push(points[0].slice());
-      return points;
-    }
+  return geometry(o);
+}
 
-    function polygon(arcs) {
-      return arcs.map(ring);
-    }
+function stitchArcs(topology, arcs) {
+  var stitchedArcs = {},
+      fragmentByStart = {},
+      fragmentByEnd = {},
+      fragments = [],
+      emptyIndex = -1;
 
-    function geometry(o) {
-      var t = o.type;
-      return t === "GeometryCollection" ? {type: t, geometries: o.geometries.map(geometry)}
-          : t in geometryType ? {type: t, coordinates: geometryType[t](o)}
-          : null;
+  // Stitch empty arcs first, since they may be subsumed by other arcs.
+  arcs.forEach(function(i, j) {
+    var arc = topology.arcs[i < 0 ? ~i : i], t;
+    if (arc.length < 3 && !arc[1][0] && !arc[1][1]) {
+      t = arcs[++emptyIndex], arcs[emptyIndex] = i, arcs[j] = t;
     }
+  });
 
-    var geometryType = {
-      Point: function(o) { return point(o.coordinates); },
-      MultiPoint: function(o) { return o.coordinates.map(point); },
-      LineString: function(o) { return line(o.arcs); },
-      MultiLineString: function(o) { return o.arcs.map(line); },
-      Polygon: function(o) { return polygon(o.arcs); },
-      MultiPolygon: function(o) { return o.arcs.map(polygon); }
-    };
+  arcs.forEach(function(i) {
+    var e = ends(i),
+        start = e[0],
+        end = e[1],
+        f, g;
 
-    return geometry(o);
-  }
-
-  function stitchArcs(topology, arcs) {
-    var stitchedArcs = {},
-        fragmentByStart = {},
-        fragmentByEnd = {},
-        fragments = [],
-        emptyIndex = -1;
-
-    // Stitch empty arcs first, since they may be subsumed by other arcs.
-    arcs.forEach(function(i, j) {
-      var arc = topology.arcs[i < 0 ? ~i : i], t;
-      if (arc.length < 3 && !arc[1][0] && !arc[1][1]) {
-        t = arcs[++emptyIndex], arcs[emptyIndex] = i, arcs[j] = t;
+    if (f = fragmentByEnd[start]) {
+      delete fragmentByEnd[f.end];
+      f.push(i);
+      f.end = end;
+      if (g = fragmentByStart[end]) {
+        delete fragmentByStart[g.start];
+        var fg = g === f ? f : f.concat(g);
+        fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;
+      } else {
+        fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
       }
-    });
-
-    arcs.forEach(function(i) {
-      var e = ends(i),
-          start = e[0],
-          end = e[1],
-          f, g;
-
-      if (f = fragmentByEnd[start]) {
-        delete fragmentByEnd[f.end];
-        f.push(i);
-        f.end = end;
-        if (g = fragmentByStart[end]) {
-          delete fragmentByStart[g.start];
-          var fg = g === f ? f : f.concat(g);
-          fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;
-        } else {
-          fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
-        }
-      } else if (f = fragmentByStart[end]) {
-        delete fragmentByStart[f.start];
-        f.unshift(i);
-        f.start = start;
-        if (g = fragmentByEnd[start]) {
-          delete fragmentByEnd[g.end];
-          var gf = g === f ? f : g.concat(f);
-          fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;
-        } else {
-          fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
-        }
+    } else if (f = fragmentByStart[end]) {
+      delete fragmentByStart[f.start];
+      f.unshift(i);
+      f.start = start;
+      if (g = fragmentByEnd[start]) {
+        delete fragmentByEnd[g.end];
+        var gf = g === f ? f : g.concat(f);
+        fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;
       } else {
-        f = [i];
-        fragmentByStart[f.start = start] = fragmentByEnd[f.end = end] = f;
+        fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
       }
-    });
-
-    function ends(i) {
-      var arc = topology.arcs[i < 0 ? ~i : i], p0 = arc[0], p1;
-      if (topology.transform) p1 = [0, 0], arc.forEach(function(dp) { p1[0] += dp[0], p1[1] += dp[1]; });
-      else p1 = arc[arc.length - 1];
-      return i < 0 ? [p1, p0] : [p0, p1];
+    } else {
+      f = [i];
+      fragmentByStart[f.start = start] = fragmentByEnd[f.end = end] = f;
     }
+  });
 
-    function flush(fragmentByEnd, fragmentByStart) {
-      for (var k in fragmentByEnd) {
-        var f = fragmentByEnd[k];
-        delete fragmentByStart[f.start];
-        delete f.start;
-        delete f.end;
-        f.forEach(function(i) { stitchedArcs[i < 0 ? ~i : i] = 1; });
-        fragments.push(f);
-      }
-    }
-
-    flush(fragmentByEnd, fragmentByStart);
-    flush(fragmentByStart, fragmentByEnd);
-    arcs.forEach(function(i) { if (!stitchedArcs[i < 0 ? ~i : i]) fragments.push([i]); });
-
-    return fragments;
+  function ends(i) {
+    var arc = topology.arcs[i < 0 ? ~i : i], p0 = arc[0], p1;
+    if (topology.transform) p1 = [0, 0], arc.forEach(function(dp) { p1[0] += dp[0], p1[1] += dp[1]; });
+    else p1 = arc[arc.length - 1];
+    return i < 0 ? [p1, p0] : [p0, p1];
   }
 
-  function mesh(topology) {
-    return object(topology, meshArcs.apply(this, arguments));
+  function flush(fragmentByEnd, fragmentByStart) {
+    for (var k in fragmentByEnd) {
+      var f = fragmentByEnd[k];
+      delete fragmentByStart[f.start];
+      delete f.start;
+      delete f.end;
+      f.forEach(function(i) { stitchedArcs[i < 0 ? ~i : i] = 1; });
+      fragments.push(f);
+    }
   }
 
-  function meshArcs(topology, o, filter) {
-    var arcs = [];
+  flush(fragmentByEnd, fragmentByStart);
+  flush(fragmentByStart, fragmentByEnd);
+  arcs.forEach(function(i) { if (!stitchedArcs[i < 0 ? ~i : i]) fragments.push([i]); });
 
-    function arc(i) {
-      var j = i < 0 ? ~i : i;
-      (geomsByArc[j] || (geomsByArc[j] = [])).push({i: i, g: geom});
-    }
+  return fragments;
+}
 
-    function line(arcs) {
-      arcs.forEach(arc);
-    }
+function mesh(topology) {
+  return object(topology, meshArcs.apply(this, arguments));
+}
 
-    function polygon(arcs) {
-      arcs.forEach(line);
-    }
+function meshArcs(topology, o, filter) {
+  var arcs = [];
 
-    function geometry(o) {
-      if (o.type === "GeometryCollection") o.geometries.forEach(geometry);
-      else if (o.type in geometryType) geom = o, geometryType[o.type](o.arcs);
-    }
+  function arc(i) {
+    var j = i < 0 ? ~i : i;
+    (geomsByArc[j] || (geomsByArc[j] = [])).push({i: i, g: geom});
+  }
 
-    if (arguments.length > 1) {
-      var geomsByArc = [],
-          geom;
+  function line(arcs) {
+    arcs.forEach(arc);
+  }
 
-      var geometryType = {
-        LineString: line,
-        MultiLineString: polygon,
-        Polygon: polygon,
-        MultiPolygon: function(arcs) { arcs.forEach(polygon); }
-      };
+  function polygon(arcs) {
+    arcs.forEach(line);
+  }
 
-      geometry(o);
+  function geometry(o) {
+    if (o.type === "GeometryCollection") o.geometries.forEach(geometry);
+    else if (o.type in geometryType) geom = o, geometryType[o.type](o.arcs);
+  }
 
-      geomsByArc.forEach(arguments.length < 3
-          ? function(geoms) { arcs.push(geoms[0].i); }
-          : function(geoms) { if (filter(geoms[0].g, geoms[geoms.length - 1].g)) arcs.push(geoms[0].i); });
-    } else {
-      for (var i = 0, n = topology.arcs.length; i < n; ++i) arcs.push(i);
-    }
+  if (arguments.length > 1) {
+    var geomsByArc = [],
+        geom;
 
-    return {type: "MultiLineString", arcs: stitchArcs(topology, arcs)};
-  }
+    var geometryType = {
+      LineString: line,
+      MultiLineString: polygon,
+      Polygon: polygon,
+      MultiPolygon: function(arcs) { arcs.forEach(polygon); }
+    };
 
-  function cartesianTriangleArea(triangle) {
-    var a = triangle[0], b = triangle[1], c = triangle[2];
-    return Math.abs((a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]));
+    geometry(o);
+
+    geomsByArc.forEach(arguments.length < 3
+        ? function(geoms) { arcs.push(geoms[0].i); }
+        : function(geoms) { if (filter(geoms[0].g, geoms[geoms.length - 1].g)) arcs.push(geoms[0].i); });
+  } else {
+    for (var i = 0, n = topology.arcs.length; i < n; ++i) arcs.push(i);
   }
 
-  function ring(ring) {
-    var i = -1,
-        n = ring.length,
-        a,
-        b = ring[n - 1],
-        area = 0;
+  return {type: "MultiLineString", arcs: stitchArcs(topology, arcs)};
+}
 
-    while (++i < n) {
-      a = b;
-      b = ring[i];
-      area += a[0] * b[1] - a[1] * b[0];
-    }
+function cartesianTriangleArea(triangle) {
+  var a = triangle[0], b = triangle[1], c = triangle[2];
+  return Math.abs((a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]));
+}
 
-    return area / 2;
-  }
+function ring(ring) {
+  var i = -1,
+      n = ring.length,
+      a,
+      b = ring[n - 1],
+      area = 0;
 
-  function merge(topology) {
-    return object(topology, mergeArcs.apply(this, arguments));
+  while (++i < n) {
+    a = b;
+    b = ring[i];
+    area += a[0] * b[1] - a[1] * b[0];
   }
 
-  function mergeArcs(topology, objects) {
-    var polygonsByArc = {},
-        polygons = [],
-        components = [];
+  return area / 2;
+}
 
-    objects.forEach(function(o) {
-      if (o.type === "Polygon") register(o.arcs);
-      else if (o.type === "MultiPolygon") o.arcs.forEach(register);
-    });
+function merge(topology) {
+  return object(topology, mergeArcs.apply(this, arguments));
+}
 
-    function register(polygon) {
-      polygon.forEach(function(ring$$) {
-        ring$$.forEach(function(arc) {
-          (polygonsByArc[arc = arc < 0 ? ~arc : arc] || (polygonsByArc[arc] = [])).push(polygon);
-        });
+function mergeArcs(topology, objects) {
+  var polygonsByArc = {},
+      polygons = [],
+      components = [];
+
+  objects.forEach(function(o) {
+    if (o.type === "Polygon") register(o.arcs);
+    else if (o.type === "MultiPolygon") o.arcs.forEach(register);
+  });
+
+  function register(polygon) {
+    polygon.forEach(function(ring$$) {
+      ring$$.forEach(function(arc) {
+        (polygonsByArc[arc = arc < 0 ? ~arc : arc] || (polygonsByArc[arc] = [])).push(polygon);
       });
-      polygons.push(polygon);
-    }
+    });
+    polygons.push(polygon);
+  }
 
-    function area(ring$$) {
-      return Math.abs(ring(object(topology, {type: "Polygon", arcs: [ring$$]}).coordinates[0]));
-    }
+  function area(ring$$) {
+    return Math.abs(ring(object(topology, {type: "Polygon", arcs: [ring$$]}).coordinates[0]));
+  }
 
-    polygons.forEach(function(polygon) {
-      if (!polygon._) {
-        var component = [],
-            neighbors = [polygon];
-        polygon._ = 1;
-        components.push(component);
-        while (polygon = neighbors.pop()) {
-          component.push(polygon);
-          polygon.forEach(function(ring$$) {
-            ring$$.forEach(function(arc) {
-              polygonsByArc[arc < 0 ? ~arc : arc].forEach(function(polygon) {
-                if (!polygon._) {
-                  polygon._ = 1;
-                  neighbors.push(polygon);
-                }
-              });
+  polygons.forEach(function(polygon) {
+    if (!polygon._) {
+      var component = [],
+          neighbors = [polygon];
+      polygon._ = 1;
+      components.push(component);
+      while (polygon = neighbors.pop()) {
+        component.push(polygon);
+        polygon.forEach(function(ring$$) {
+          ring$$.forEach(function(arc) {
+            polygonsByArc[arc < 0 ? ~arc : arc].forEach(function(polygon) {
+              if (!polygon._) {
+                polygon._ = 1;
+                neighbors.push(polygon);
+              }
             });
           });
-        }
+        });
       }
-    });
+    }
+  });
 
-    polygons.forEach(function(polygon) {
-      delete polygon._;
-    });
+  polygons.forEach(function(polygon) {
+    delete polygon._;
+  });
 
-    return {
-      type: "MultiPolygon",
-      arcs: components.map(function(polygons) {
-        var arcs = [], n;
+  return {
+    type: "MultiPolygon",
+    arcs: components.map(function(polygons) {
+      var arcs = [], n;
 
-        // Extract the exterior (unique) arcs.
-        polygons.forEach(function(polygon) {
-          polygon.forEach(function(ring$$) {
-            ring$$.forEach(function(arc) {
-              if (polygonsByArc[arc < 0 ? ~arc : arc].length < 2) {
-                arcs.push(arc);
-              }
-            });
+      // Extract the exterior (unique) arcs.
+      polygons.forEach(function(polygon) {
+        polygon.forEach(function(ring$$) {
+          ring$$.forEach(function(arc) {
+            if (polygonsByArc[arc < 0 ? ~arc : arc].length < 2) {
+              arcs.push(arc);
+            }
           });
         });
+      });
 
-        // Stitch the arcs into one or more rings.
-        arcs = stitchArcs(topology, arcs);
+      // Stitch the arcs into one or more rings.
+      arcs = stitchArcs(topology, arcs);
 
-        // If more than one ring is returned,
-        // at most one of these rings can be the exterior;
-        // choose the one with the greatest absolute area.
-        if ((n = arcs.length) > 1) {
-          for (var i = 1, k = area(arcs[0]), ki, t; i < n; ++i) {
-            if ((ki = area(arcs[i])) > k) {
-              t = arcs[0], arcs[0] = arcs[i], arcs[i] = t, k = ki;
-            }
+      // If more than one ring is returned,
+      // at most one of these rings can be the exterior;
+      // choose the one with the greatest absolute area.
+      if ((n = arcs.length) > 1) {
+        for (var i = 1, k = area(arcs[0]), ki, t; i < n; ++i) {
+          if ((ki = area(arcs[i])) > k) {
+            t = arcs[0], arcs[0] = arcs[i], arcs[i] = t, k = ki;
           }
         }
+      }
 
-        return arcs;
-      })
-    };
-  }
+      return arcs;
+    })
+  };
+}
 
-  function neighbors(objects) {
-    var indexesByArc = {}, // arc index -> array of object indexes
-        neighbors = objects.map(function() { return []; });
+function neighbors(objects) {
+  var indexesByArc = {}, // arc index -> array of object indexes
+      neighbors = objects.map(function() { return []; });
 
-    function line(arcs, i) {
-      arcs.forEach(function(a) {
-        if (a < 0) a = ~a;
-        var o = indexesByArc[a];
-        if (o) o.push(i);
-        else indexesByArc[a] = [i];
-      });
-    }
+  function line(arcs, i) {
+    arcs.forEach(function(a) {
+      if (a < 0) a = ~a;
+      var o = indexesByArc[a];
+      if (o) o.push(i);
+      else indexesByArc[a] = [i];
+    });
+  }
 
-    function polygon(arcs, i) {
-      arcs.forEach(function(arc) { line(arc, i); });
-    }
+  function polygon(arcs, i) {
+    arcs.forEach(function(arc) { line(arc, i); });
+  }
 
-    function geometry(o, i) {
-      if (o.type === "GeometryCollection") o.geometries.forEach(function(o) { geometry(o, i); });
-      else if (o.type in geometryType) geometryType[o.type](o.arcs, i);
-    }
+  function geometry(o, i) {
+    if (o.type === "GeometryCollection") o.geometries.forEach(function(o) { geometry(o, i); });
+    else if (o.type in geometryType) geometryType[o.type](o.arcs, i);
+  }
 
-    var geometryType = {
-      LineString: line,
-      MultiLineString: polygon,
-      Polygon: polygon,
-      MultiPolygon: function(arcs, i) { arcs.forEach(function(arc) { polygon(arc, i); }); }
-    };
+  var geometryType = {
+    LineString: line,
+    MultiLineString: polygon,
+    Polygon: polygon,
+    MultiPolygon: function(arcs, i) { arcs.forEach(function(arc) { polygon(arc, i); }); }
+  };
 
-    objects.forEach(geometry);
+  objects.forEach(geometry);
 
-    for (var i in indexesByArc) {
-      for (var indexes = indexesByArc[i], m = indexes.length, j = 0; j < m; ++j) {
-        for (var k = j + 1; k < m; ++k) {
-          var ij = indexes[j], ik = indexes[k], n;
-          if ((n = neighbors[ij])[i = bisect(n, ik)] !== ik) n.splice(i, 0, ik);
-          if ((n = neighbors[ik])[i = bisect(n, ij)] !== ij) n.splice(i, 0, ij);
-        }
+  for (var i in indexesByArc) {
+    for (var indexes = indexesByArc[i], m = indexes.length, j = 0; j < m; ++j) {
+      for (var k = j + 1; k < m; ++k) {
+        var ij = indexes[j], ik = indexes[k], n;
+        if ((n = neighbors[ij])[i = bisect(n, ik)] !== ik) n.splice(i, 0, ik);
+        if ((n = neighbors[ik])[i = bisect(n, ij)] !== ij) n.splice(i, 0, ij);
       }
     }
-
-    return neighbors;
   }
 
-  function compareArea(a, b) {
-    return a[1][2] - b[1][2];
-  }
+  return neighbors;
+}
 
-  function minAreaHeap() {
-    var heap = {},
-        array = [],
-        size = 0;
+function compareArea(a, b) {
+  return a[1][2] - b[1][2];
+}
 
-    heap.push = function(object) {
-      up(array[object._ = size] = object, size++);
-      return size;
-    };
+function minAreaHeap() {
+  var heap = {},
+      array = [],
+      size = 0;
 
-    heap.pop = function() {
-      if (size <= 0) return;
-      var removed = array[0], object;
-      if (--size > 0) object = array[size], down(array[object._ = 0] = object, 0);
-      return removed;
-    };
+  heap.push = function(object) {
+    up(array[object._ = size] = object, size++);
+    return size;
+  };
 
-    heap.remove = function(removed) {
-      var i = removed._, object;
-      if (array[i] !== removed) return; // invalid request
-      if (i !== --size) object = array[size], (compareArea(object, removed) < 0 ? up : down)(array[object._ = i] = object, i);
-      return i;
-    };
+  heap.pop = function() {
+    if (size <= 0) return;
+    var removed = array[0], object;
+    if (--size > 0) object = array[size], down(array[object._ = 0] = object, 0);
+    return removed;
+  };
 
-    function up(object, i) {
-      while (i > 0) {
-        var j = ((i + 1) >> 1) - 1,
-            parent = array[j];
-        if (compareArea(object, parent) >= 0) break;
-        array[parent._ = i] = parent;
-        array[object._ = i = j] = object;
-      }
+  heap.remove = function(removed) {
+    var i = removed._, object;
+    if (array[i] !== removed) return; // invalid request
+    if (i !== --size) object = array[size], (compareArea(object, removed) < 0 ? up : down)(array[object._ = i] = object, i);
+    return i;
+  };
+
+  function up(object, i) {
+    while (i > 0) {
+      var j = ((i + 1) >> 1) - 1,
+          parent = array[j];
+      if (compareArea(object, parent) >= 0) break;
+      array[parent._ = i] = parent;
+      array[object._ = i = j] = object;
     }
+  }
 
-    function down(object, i) {
-      while (true) {
-        var r = (i + 1) << 1,
-            l = r - 1,
-            j = i,
-            child = array[j];
-        if (l < size && compareArea(array[l], child) < 0) child = array[j = l];
-        if (r < size && compareArea(array[r], child) < 0) child = array[j = r];
-        if (j === i) break;
-        array[child._ = i] = child;
-        array[object._ = i = j] = object;
-      }
+  function down(object, i) {
+    while (true) {
+      var r = (i + 1) << 1,
+          l = r - 1,
+          j = i,
+          child = array[j];
+      if (l < size && compareArea(array[l], child) < 0) child = array[j = l];
+      if (r < size && compareArea(array[r], child) < 0) child = array[j = r];
+      if (j === i) break;
+      array[child._ = i] = child;
+      array[object._ = i = j] = object;
     }
-
-    return heap;
   }
 
-  function presimplify(topology, triangleArea) {
-    var absolute = transformAbsolute(topology.transform),
-        relative = transformRelative(topology.transform),
-        heap = minAreaHeap();
+  return heap;
+}
 
-    if (!triangleArea) triangleArea = cartesianTriangleArea;
+function presimplify(topology, triangleArea) {
+  var absolute = transformAbsolute(topology.transform),
+      relative = transformRelative(topology.transform),
+      heap = minAreaHeap();
 
-    topology.arcs.forEach(function(arc) {
-      var triangles = [],
-          maxArea = 0,
-          triangle,
-          i,
-          n,
-          p;
+  if (!triangleArea) triangleArea = cartesianTriangleArea;
 
-      // To store each point’s effective area, we create a new array rather than
-      // extending the passed-in point to workaround a Chrome/V8 bug (getting
-      // stuck in smi mode). For midpoints, the initial effective area of
-      // Infinity will be computed in the next step.
-      for (i = 0, n = arc.length; i < n; ++i) {
-        p = arc[i];
-        absolute(arc[i] = [p[0], p[1], Infinity], i);
-      }
+  topology.arcs.forEach(function(arc) {
+    var triangles = [],
+        maxArea = 0,
+        triangle,
+        i,
+        n,
+        p;
 
-      for (i = 1, n = arc.length - 1; i < n; ++i) {
-        triangle = arc.slice(i - 1, i + 2);
-        triangle[1][2] = triangleArea(triangle);
-        triangles.push(triangle);
-        heap.push(triangle);
-      }
+    // To store each point’s effective area, we create a new array rather than
+    // extending the passed-in point to workaround a Chrome/V8 bug (getting
+    // stuck in smi mode). For midpoints, the initial effective area of
+    // Infinity will be computed in the next step.
+    for (i = 0, n = arc.length; i < n; ++i) {
+      p = arc[i];
+      absolute(arc[i] = [p[0], p[1], Infinity], i);
+    }
 
-      for (i = 0, n = triangles.length; i < n; ++i) {
-        triangle = triangles[i];
-        triangle.previous = triangles[i - 1];
-        triangle.next = triangles[i + 1];
-      }
+    for (i = 1, n = arc.length - 1; i < n; ++i) {
+      triangle = arc.slice(i - 1, i + 2);
+      triangle[1][2] = triangleArea(triangle);
+      triangles.push(triangle);
+      heap.push(triangle);
+    }
 
-      while (triangle = heap.pop()) {
-        var previous = triangle.previous,
-            next = triangle.next;
+    for (i = 0, n = triangles.length; i < n; ++i) {
+      triangle = triangles[i];
+      triangle.previous = triangles[i - 1];
+      triangle.next = triangles[i + 1];
+    }
 
-        // If the area of the current point is less than that of the previous point
-        // to be eliminated, use the latter's area instead. This ensures that the
-        // current point cannot be eliminated without eliminating previously-
-        // eliminated points.
-        if (triangle[1][2] < maxArea) triangle[1][2] = maxArea;
-        else maxArea = triangle[1][2];
+    while (triangle = heap.pop()) {
+      var previous = triangle.previous,
+          next = triangle.next;
 
-        if (previous) {
-          previous.next = next;
-          previous[2] = triangle[2];
-          update(previous);
-        }
+      // If the area of the current point is less than that of the previous point
+      // to be eliminated, use the latter's area instead. This ensures that the
+      // current point cannot be eliminated without eliminating previously-
+      // eliminated points.
+      if (triangle[1][2] < maxArea) triangle[1][2] = maxArea;
+      else maxArea = triangle[1][2];
 
-        if (next) {
-          next.previous = previous;
-          next[0] = triangle[0];
-          update(next);
-        }
+      if (previous) {
+        previous.next = next;
+        previous[2] = triangle[2];
+        update(previous);
       }
 
-      arc.forEach(relative);
-    });
-
-    function update(triangle) {
-      heap.remove(triangle);
-      triangle[1][2] = triangleArea(triangle);
-      heap.push(triangle);
+      if (next) {
+        next.previous = previous;
+        next[0] = triangle[0];
+        update(next);
+      }
     }
 
-    return topology;
+    arc.forEach(relative);
+  });
+
+  function update(triangle) {
+    heap.remove(triangle);
+    triangle[1][2] = triangleArea(triangle);
+    heap.push(triangle);
   }
 
-  var version = "1.6.26";
+  return topology;
+}
 
-  exports.version = version;
-  exports.mesh = mesh;
-  exports.meshArcs = meshArcs;
-  exports.merge = merge;
-  exports.mergeArcs = mergeArcs;
-  exports.feature = feature;
-  exports.neighbors = neighbors;
-  exports.presimplify = presimplify;
+var version = "1.6.27";
 
-}));
+exports.version = version;
+exports.mesh = mesh;
+exports.meshArcs = meshArcs;
+exports.merge = merge;
+exports.mergeArcs = mergeArcs;
+exports.feature = feature;
+exports.neighbors = neighbors;
+exports.presimplify = presimplify;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));

build/topojson.min.js

@@ -1,1 +0,1 @@
-!function(n,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t(n.topojson=n.topojson||{})}(this,function(n){"use strict";function t(){}function r(n){if(!n)return t;var r,e,o=n.scale[0],i=n.scale[1],u=n.translate[0],f=n.translate[1];return function(n,t){t||(r=e=0),n[0]=(r+=n[0])*o+u,n[1]=(e+=n[1])*i+f}}function e(n){if(!n)return t;var r,e,o=n.scale[0],i=n.scale[1],u=n.translate[0],f=n.translate[1];return function(n,t){t||(r=e=0);var c=Math.round((n[0]-u)/o),a=Math.round((n[1]-f)/i);n[0]=c-r,n[1]=a-e,r=c,e=a}}function o(n,t){for(var r,e=n.length,o=e-t;o<--e;)r=n[o],n[o++]=n[e],n[e]=r}function i(n,t){for(var r=0,e=n.length;e>r;){var o=r+e>>>1;n[o]<t?r=o+1:e=o}return r}function u(n,t){return"GeometryCollection"===t.type?{type:"FeatureCollection",features:t.geometries.map(function(t){return f(n,t)})}:f(n,t)}function f(n,t){var r={type:"Feature",id:t.id,properties:t.properties||{},geometry:c(n,t)};return null==t.id&&delete r.id,r}function c(n,t){function e(n,t){t.length&&t.pop();for(var r,e=l[0>n?~n:n],i=0,u=e.length;u>i;++i)t.push(r=e[i].slice()),s(r,i);0>n&&o(t,u)}function i(n){return n=n.slice(),s(n,0),n}function u(n){for(var t=[],r=0,o=n.length;o>r;++r)e(n[r],t);return t.length<2&&t.push(t[0].slice()),t}function f(n){for(var t=u(n);t.length<4;)t.push(t[0].slice());return t}function c(n){return n.map(f)}function a(n){var t=n.type;return"GeometryCollection"===t?{type:t,geometries:n.geometries.map(a)}:t in h?{type:t,coordinates:h[t](n)}:null}var s=r(n.transform),l=n.arcs,h={Point:function(n){return i(n.coordinates)},MultiPoint:function(n){return n.coordinates.map(i)},LineString:function(n){return u(n.arcs)},MultiLineString:function(n){return n.arcs.map(u)},Polygon:function(n){return c(n.arcs)},MultiPolygon:function(n){return n.arcs.map(c)}};return a(t)}function a(n,t){function r(t){var r,e=n.arcs[0>t?~t:t],o=e[0];return 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Math.abs(p(c(n,{type:"Polygon",arcs:[t]}).coordinates[0]))}var o={},i=[],u=[];return t.forEach(function(n){"Polygon"===n.type?r(n.arcs):"MultiPolygon"===n.type&&n.arcs.forEach(r)}),i.forEach(function(n){if(!n._){var t=[],r=[n];for(n._=1,u.push(t);n=r.pop();)t.push(n),n.forEach(function(n){n.forEach(function(n){o[0>n?~n:n].forEach(function(n){n._||(n._=1,r.push(n))})})})}}),i.forEach(function(n){delete n._}),{type:"MultiPolygon",arcs:u.map(function(t){var r,i=[];if(t.forEach(function(n){n.forEach(function(n){n.forEach(function(n){o[0>n?~n:n].length<2&&i.push(n)})})}),i=a(n,i),(r=i.length)>1)for(var u,f,c=1,s=e(i[0]);r>c;++c)(u=e(i[c]))>s&&(f=i[0],i[0]=i[c],i[c]=f,s=u);return i})}}function y(n){function t(n,t){n.forEach(function(n){0>n&&(n=~n);var r=o[n];r?r.push(t):o[n]=[t]})}function r(n,r){n.forEach(function(n){t(n,r)})}function e(n,t){"GeometryCollection"===n.type?n.geometries.forEach(function(n){e(n,t)}):n.type in f&&f[n.type](n.arcs,t)}var 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i=r(n.transform),u=e(n.transform),f=m();return t||(t=h),n.arcs.forEach(function(n){var r,e,c,a,s=[],l=0;for(e=0,c=n.length;c>e;++e)a=n[e],i(n[e]=[a[0],a[1],1/0],e);for(e=1,c=n.length-1;c>e;++e)r=n.slice(e-1,e+2),r[1][2]=t(r),s.push(r),f.push(r);for(e=0,c=s.length;c>e;++e)r=s[e],r.previous=s[e-1],r.next=s[e+1];for(;r=f.pop();){var h=r.previous,p=r.next;r[1][2]<l?r[1][2]=l:l=r[1][2],h&&(h.next=p,h[2]=r[2],o(h)),p&&(p.previous=h,p[0]=r[0],o(p))}n.forEach(u)}),n}var M="1.6.26";n.version=M,n.mesh=s,n.meshArcs=l,n.merge=v,n.mergeArcs=g,n.feature=u,n.neighbors=y,n.presimplify=E});
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package.json

 {
   "name": "topojson",
-  "version": "1.6.26",
+  "version": "1.6.27",
   "description": "An extension to GeoJSON that encodes topology.",
@@ -45,3 +45,4 @@ "keywords": [
   "devDependencies": {
-    "rollup": "0.26",
+    "eslint": "3",
+    "rollup": "0.34",
     "tape": "4",
@@ -48,0 +49,0 @@ "uglify-js": "2",

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