import {
  Circle_default,
  LineString_default,
  MultiLineString_default,
  MultiPolygon_default
} from "./chunk-7JXPN73Q.js";
import {
  Polygon_default
} from "./chunk-AZGMK675.js";
import {
  buffer
} from "./chunk-SRXHWJOY.js";

// node_modules/ol-ext/geom/GeomUtils.js
var ol_coordinate_dist2d = function(p1, p2) {
  var dx = p1[0] - p2[0];
  var dy = p1[1] - p2[1];
  return Math.sqrt(dx * dx + dy * dy);
};
var ol_coordinate_equal = function(p1, p2) {
  return p1[0] == p2[0] && p1[1] == p2[1];
};
var ol_coordinate_offsetCoords = function(coords, offset) {
  var path = [];
  var N = coords.length - 1;
  var max = N;
  var mi, mi1, li, li1, ri, ri1, si, si1, Xi1, Yi1;
  var p0, p1, p2;
  var isClosed = ol_coordinate_equal(coords[0], coords[N]);
  if (!isClosed) {
    p0 = coords[0];
    p1 = coords[1];
    p2 = [
      p0[0] + (p1[1] - p0[1]) / ol_coordinate_dist2d(p0, p1) * offset,
      p0[1] - (p1[0] - p0[0]) / ol_coordinate_dist2d(p0, p1) * offset
    ];
    path.push(p2);
    coords.push(coords[N]);
    N++;
    max--;
  }
  for (var i = 0; i < max; i++) {
    p0 = coords[i];
    p1 = coords[(i + 1) % N];
    p2 = coords[(i + 2) % N];
    mi = (p1[1] - p0[1]) / (p1[0] - p0[0]);
    mi1 = (p2[1] - p1[1]) / (p2[0] - p1[0]);
    if (Math.abs(mi - mi1) > 1e-10) {
      li = Math.sqrt((p1[0] - p0[0]) * (p1[0] - p0[0]) + (p1[1] - p0[1]) * (p1[1] - p0[1]));
      li1 = Math.sqrt((p2[0] - p1[0]) * (p2[0] - p1[0]) + (p2[1] - p1[1]) * (p2[1] - p1[1]));
      ri = p0[0] + offset * (p1[1] - p0[1]) / li;
      ri1 = p1[0] + offset * (p2[1] - p1[1]) / li1;
      si = p0[1] - offset * (p1[0] - p0[0]) / li;
      si1 = p1[1] - offset * (p2[0] - p1[0]) / li1;
      Xi1 = (mi1 * ri1 - mi * ri + si - si1) / (mi1 - mi);
      Yi1 = (mi * mi1 * (ri1 - ri) + mi1 * si - mi * si1) / (mi1 - mi);
      if (p1[0] - p0[0] == 0) {
        Xi1 = p1[0] + offset * (p1[1] - p0[1]) / Math.abs(p1[1] - p0[1]);
        Yi1 = mi1 * Xi1 - mi1 * ri1 + si1;
      }
      if (p2[0] - p1[0] == 0) {
        Xi1 = p2[0] + offset * (p2[1] - p1[1]) / Math.abs(p2[1] - p1[1]);
        Yi1 = mi * Xi1 - mi * ri + si;
      }
      path.push([Xi1, Yi1]);
    }
  }
  if (isClosed) {
    path.push(path[0]);
  } else {
    coords.pop();
    p0 = coords[coords.length - 1];
    p1 = coords[coords.length - 2];
    p2 = [
      p0[0] - (p1[1] - p0[1]) / ol_coordinate_dist2d(p0, p1) * offset,
      p0[1] + (p1[0] - p0[0]) / ol_coordinate_dist2d(p0, p1) * offset
    ];
    path.push(p2);
  }
  return path;
};
var ol_coordinate_findSegment = function(pt, coords) {
  for (var i = 0; i < coords.length - 1; i++) {
    var p0 = coords[i];
    var p1 = coords[i + 1];
    if (ol_coordinate_equal(pt, p0) || ol_coordinate_equal(pt, p1)) {
      return { index: 1, segment: [p0, p1] };
    } else {
      var d0 = ol_coordinate_dist2d(p0, p1);
      var v0 = [(p1[0] - p0[0]) / d0, (p1[1] - p0[1]) / d0];
      var d1 = ol_coordinate_dist2d(p0, pt);
      var v1 = [(pt[0] - p0[0]) / d1, (pt[1] - p0[1]) / d1];
      if (Math.abs(v0[0] * v1[1] - v0[1] * v1[0]) < 1e-10) {
        return { index: 1, segment: [p0, p1] };
      }
    }
  }
  return { index: -1 };
};
var ol_extent_intersection;
(function() {
  function splitX(pts, x) {
    var pt;
    for (let i = pts.length - 1; i > 0; i--) {
      if (pts[i][0] > x && pts[i - 1][0] < x || pts[i][0] < x && pts[i - 1][0] > x) {
        pt = [x, (x - pts[i][0]) / (pts[i - 1][0] - pts[i][0]) * (pts[i - 1][1] - pts[i][1]) + pts[i][1]];
        pts.splice(i, 0, pt);
      }
    }
  }
  function splitY(pts, y) {
    var pt;
    for (let i = pts.length - 1; i > 0; i--) {
      if (pts[i][1] > y && pts[i - 1][1] < y || pts[i][1] < y && pts[i - 1][1] > y) {
        pt = [(y - pts[i][1]) / (pts[i - 1][1] - pts[i][1]) * (pts[i - 1][0] - pts[i][0]) + pts[i][0], y];
        pts.splice(i, 0, pt);
      }
    }
  }
  ol_extent_intersection = function(extent, polygon) {
    var poly = polygon.getType() === "Polygon";
    if (!poly && polygon.getType() !== "MultiPolygon") return null;
    var geom = polygon.getCoordinates();
    if (poly) geom = [geom];
    geom.forEach(function(g) {
      g.forEach(function(c) {
        splitX(c, extent[0]);
        splitX(c, extent[2]);
        splitY(c, extent[1]);
        splitY(c, extent[3]);
      });
    });
    geom.forEach(function(g) {
      g.forEach(function(c) {
        c.forEach(function(p) {
          if (p[0] < extent[0]) p[0] = extent[0];
          else if (p[0] > extent[2]) p[0] = extent[2];
          if (p[1] < extent[1]) p[1] = extent[1];
          else if (p[1] > extent[3]) p[1] = extent[3];
        });
      });
    });
    if (poly) {
      return new Polygon_default(geom[0]);
    } else {
      return new MultiPolygon_default(geom);
    }
  };
})();
var ol_coordinate_sampleAt = function(p1, p2, d, start) {
  var pts = [];
  if (start !== false) pts.push(p1);
  var dl = ol_coordinate_dist2d(p1, p2);
  if (dl) {
    var nb = Math.round(dl / d);
    if (nb > 1) {
      var dx = (p2[0] - p1[0]) / nb;
      var dy = (p2[1] - p1[1]) / nb;
      for (var i = 1; i < nb; i++) {
        pts.push([p1[0] + dx * i, p1[1] + dy * i]);
      }
    }
  }
  pts.push(p2);
  return pts;
};
LineString_default.prototype.sampleAt = function(d) {
  var line = this.getCoordinates();
  var result = [];
  for (var i = 1; i < line.length; i++) {
    result = result.concat(ol_coordinate_sampleAt(line[i - 1], line[i], d, i === 1));
  }
  return new LineString_default(result);
};
MultiLineString_default.prototype.sampleAt = function(d) {
  var lines = this.getCoordinates();
  var result = [];
  lines.forEach(function(p) {
    var l = [];
    for (var i = 1; i < p.length; i++) {
      l = l.concat(ol_coordinate_sampleAt(p[i - 1], p[i], d, i === 1));
    }
    result.push(l);
  });
  return new MultiLineString_default(result);
};
Polygon_default.prototype.sampleAt = function(res) {
  var poly = this.getCoordinates();
  var result = [];
  poly.forEach(function(p) {
    var l = [];
    for (var i = 1; i < p.length; i++) {
      l = l.concat(ol_coordinate_sampleAt(p[i - 1], p[i], res, i === 1));
    }
    result.push(l);
  });
  return new Polygon_default(result);
};
MultiPolygon_default.prototype.sampleAt = function(res) {
  var mpoly = this.getCoordinates();
  var result = [];
  mpoly.forEach(function(poly) {
    var a = [];
    result.push(a);
    poly.forEach(function(p) {
      var l = [];
      for (var i = 1; i < p.length; i++) {
        l = l.concat(ol_coordinate_sampleAt(p[i - 1], p[i], res, i === 1));
      }
      a.push(l);
    });
  });
  return new MultiPolygon_default(result);
};
Circle_default.prototype.intersection = function(geom, resolution) {
  if (geom.sampleAt) {
    var ext = buffer(this.getCenter().concat(this.getCenter()), this.getRadius());
    geom = ol_extent_intersection(ext, geom);
    geom = geom.simplify(resolution);
    var c = this.getCenter();
    var r = this.getRadius();
    var g = geom.sampleAt(resolution).getCoordinates();
    switch (geom.getType()) {
      case "Polygon":
        g = [g];
      // fallthrough
      case "MultiPolygon": {
        var hasout = false;
        var result = [];
        g.forEach(function(poly) {
          var a = [];
          result.push(a);
          poly.forEach(function(ring) {
            var l = [];
            a.push(l);
            ring.forEach(function(p) {
              var d = ol_coordinate_dist2d(c, p);
              if (d > r) {
                hasout = true;
                l.push([
                  c[0] + r / d * (p[0] - c[0]),
                  c[1] + r / d * (p[1] - c[1])
                ]);
              } else {
                l.push(p);
              }
            });
          });
        });
        if (!hasout) return geom;
        if (geom.getType() === "Polygon") {
          return new Polygon_default(result[0]);
        } else {
          return new MultiPolygon_default(result);
        }
      }
    }
  } else {
    console.warn("[ol/geom/Circle~intersection] Unsupported geometry type: " + geom.getType());
  }
  return geom;
};

export {
  ol_coordinate_dist2d,
  ol_coordinate_equal,
  ol_coordinate_offsetCoords,
  ol_coordinate_findSegment
};
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