Index: node_modules/d3-geo/src/clip/antimeridian.js
===================================================================
--- node_modules/d3-geo/src/clip/antimeridian.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-geo/src/clip/antimeridian.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,92 @@
+import clip from "./index.js";
+import {abs, atan, cos, epsilon, halfPi, pi, sin} from "../math.js";
+
+export default clip(
+  function() { return true; },
+  clipAntimeridianLine,
+  clipAntimeridianInterpolate,
+  [-pi, -halfPi]
+);
+
+// Takes a line and cuts into visible segments. Return values: 0 - there were
+// intersections or the line was empty; 1 - no intersections; 2 - there were
+// intersections, and the first and last segments should be rejoined.
+function clipAntimeridianLine(stream) {
+  var lambda0 = NaN,
+      phi0 = NaN,
+      sign0 = NaN,
+      clean; // no intersections
+
+  return {
+    lineStart: function() {
+      stream.lineStart();
+      clean = 1;
+    },
+    point: function(lambda1, phi1) {
+      var sign1 = lambda1 > 0 ? pi : -pi,
+          delta = abs(lambda1 - lambda0);
+      if (abs(delta - pi) < epsilon) { // line crosses a pole
+        stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi : -halfPi);
+        stream.point(sign0, phi0);
+        stream.lineEnd();
+        stream.lineStart();
+        stream.point(sign1, phi0);
+        stream.point(lambda1, phi0);
+        clean = 0;
+      } else if (sign0 !== sign1 && delta >= pi) { // line crosses antimeridian
+        if (abs(lambda0 - sign0) < epsilon) lambda0 -= sign0 * epsilon; // handle degeneracies
+        if (abs(lambda1 - sign1) < epsilon) lambda1 -= sign1 * epsilon;
+        phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1);
+        stream.point(sign0, phi0);
+        stream.lineEnd();
+        stream.lineStart();
+        stream.point(sign1, phi0);
+        clean = 0;
+      }
+      stream.point(lambda0 = lambda1, phi0 = phi1);
+      sign0 = sign1;
+    },
+    lineEnd: function() {
+      stream.lineEnd();
+      lambda0 = phi0 = NaN;
+    },
+    clean: function() {
+      return 2 - clean; // if intersections, rejoin first and last segments
+    }
+  };
+}
+
+function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) {
+  var cosPhi0,
+      cosPhi1,
+      sinLambda0Lambda1 = sin(lambda0 - lambda1);
+  return abs(sinLambda0Lambda1) > epsilon
+      ? atan((sin(phi0) * (cosPhi1 = cos(phi1)) * sin(lambda1)
+          - sin(phi1) * (cosPhi0 = cos(phi0)) * sin(lambda0))
+          / (cosPhi0 * cosPhi1 * sinLambda0Lambda1))
+      : (phi0 + phi1) / 2;
+}
+
+function clipAntimeridianInterpolate(from, to, direction, stream) {
+  var phi;
+  if (from == null) {
+    phi = direction * halfPi;
+    stream.point(-pi, phi);
+    stream.point(0, phi);
+    stream.point(pi, phi);
+    stream.point(pi, 0);
+    stream.point(pi, -phi);
+    stream.point(0, -phi);
+    stream.point(-pi, -phi);
+    stream.point(-pi, 0);
+    stream.point(-pi, phi);
+  } else if (abs(from[0] - to[0]) > epsilon) {
+    var lambda = from[0] < to[0] ? pi : -pi;
+    phi = direction * lambda / 2;
+    stream.point(-lambda, phi);
+    stream.point(0, phi);
+    stream.point(lambda, phi);
+  } else {
+    stream.point(to[0], to[1]);
+  }
+}