Merge branch 'projection' of https://github.com/jasondavies/d3 into projection
This commit is contained in:
Коммит
24d1f6051b
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@ -2030,22 +2030,46 @@
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coordinates = projectRotate.invert((coordinates[0] - δx) / k, (δy - coordinates[1]) / k);
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return [ coordinates[0] * d3_degrees, coordinates[1] * d3_degrees ];
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}
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function intersect(λ0, φ0, λ1, φ1) {
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var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
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return Math.abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
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}
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function rotateLocation(coordinates) {
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return rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
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}
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function transformPoint(λ, φ) {
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var point = project(λ, φ);
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return [ point[0] * k + δx, δy - point[1] * k ];
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}
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function reset() {
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projectRotate = d3_geo_compose(d3_geo_rotation(δλ, δφ, δγ), project);
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projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
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var center = project(λ, φ);
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δx = x - center[0] * k;
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δy = y + center[1] * k;
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return p;
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}
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var project, projectRotate, k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx = x, δy = y;
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var project, rotate, projectRotate, k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx = x, δy = y;
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p.point = function(coordinates, context) {
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var point = p(coordinates);
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context.point(point[0], point[1]);
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};
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p.line = function(coordinates, context) {
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var point = p(coordinates[0]), i = 0, n = coordinates.length;
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if (!(n = coordinates.length)) return;
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var location = rotateLocation(coordinates[0]), λ0 = location[0], φ0 = location[1], point = transformPoint(λ0, φ0), λ1, φ1, δλ, sλ0, n;
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context.moveTo(point[0], point[1]);
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while (++i < n) context.lineTo((point = p(coordinates[i]))[0], point[1]);
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for (var i = 0; i < n; i++) {
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location = rotateLocation(coordinates[i]);
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λ1 = location[0];
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φ1 = location[1];
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δλ = (Math.abs(λ1 - λ0) + 2 * π) % (2 * π);
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sλ0 = λ0 > 0;
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if (i && sλ0 ^ λ1 > 0 && (δλ >= π || δλ < ε && Math.abs(Math.abs(λ0) - π) < ε)) {
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φ0 = intersect(λ0, φ0, λ1, φ1);
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context.lineTo((point = transformPoint(sλ0 ? π : -π, φ0))[0], point[1]);
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context.moveTo((point = transformPoint(sλ0 ? -π : π, φ0))[0], point[1]);
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}
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context.lineTo((point = transformPoint(λ0 = λ1, φ0 = φ1))[0], point[1]);
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}
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};
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p.ring = function(coordinates, context) {
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p.line(coordinates, context);
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@ -2707,7 +2731,7 @@
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d3 = {
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version: "2.10.2"
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};
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var π = Math.PI, d3_radians = π / 180, d3_degrees = 180 / π;
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var π = Math.PI, ε = 1e-6, d3_radians = π / 180, d3_degrees = 180 / π;
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var d3_array = d3_arraySlice;
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try {
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d3_array(document.documentElement.childNodes)[0].nodeType;
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@ -6218,12 +6242,12 @@
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}
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var x1 = 180, x0 = -x1, y1 = 90, y0 = -y1, dx = 22.5, dy = dx;
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graticule.lines = function() {
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var xLines = d3.range(Math.ceil(x0 / dx) * dx, y0, dx).map(function(x) {
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return [ y0, y1 ].map(function(y) {
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var xSteps = d3.range(Math.ceil(x0 / dx) * dx, x1, dx).concat(x1), ySteps = d3.range(Math.ceil(y0 / dy) * dy, y1, dy).concat(y1), xLines = xSteps.map(function(x) {
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return ySteps.map(function(y) {
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return [ x, y ];
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});
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}), yLines = d3.range(Math.ceil(x1 / dy) * dy, y1, dy).map(function(y) {
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return [ x0, x1 ].map(function(x) {
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}), yLines = ySteps.map(function(y) {
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return xSteps.map(function(x) {
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return [ x, y ];
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});
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});
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@ -6323,6 +6347,10 @@
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});
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return buffer.length ? buffer.join("") : null;
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}
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function pathObject(object, context) {
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var pathType = pathObjectByType.get(object.type);
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if (pathType) pathType(object, context);
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}
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function pathGeometry(geometry, context) {
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var pathType = pathGeometryByType.get(geometry.type);
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if (pathType) pathType(geometry, context);
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@ -6363,11 +6391,7 @@
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var coordinates = polygon.coordinates, i = -1, n = coordinates.length;
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while (++i < n) projection.ring(coordinates[i], context);
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}
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function pathObject(object, context) {
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var pathType = pathObjectByType.get(object.type);
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if (pathType) pathType(object, context);
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}
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var pointRadius = 4.5, pointCircle = d3_geo_path_circle(pointRadius), projection, context;
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var pointRadius = 4.5, pointCircle = d3_geo_path_circle(pointRadius), projection = d3.geo.albersUsa(), context;
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var pathObjectByType = d3.map({
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Feature: pathFeature,
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FeatureCollection: pathFeatureCollection,
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@ -6403,7 +6427,7 @@
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if (typeof x === "function") pointRadius = x; else pointCircle = d3_geo_path_circle(pointRadius = +x);
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return path;
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};
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return path.projection(d3.geo.albersUsa());
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return path;
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};
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d3.geo.projection = d3_geo_projection;
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var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {
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Различия файлов скрыты, потому что одна или несколько строк слишком длинны
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@ -1,5 +1,6 @@
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d3 = {version: "2.10.2"}; // semver
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var π = Math.PI,
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ε = 1e-6,
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d3_radians = π / 180,
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d3_degrees = 180 / π;
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@ -12,8 +12,10 @@ d3.geo.graticule = function() {
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}
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graticule.lines = function() {
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var xLines = d3.range(Math.ceil(x0 / dx) * dx, y0, dx).map(function(x) { return [y0, y1].map(function(y) { return [x, y]; }); }),
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yLines = d3.range(Math.ceil(x1 / dy) * dy, y1, dy).map(function(y) { return [x0, x1].map(function(x) { return [x, y]; }); });
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var xSteps = d3.range(Math.ceil(x0 / dx) * dx, x1, dx).concat(x1),
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ySteps = d3.range(Math.ceil(y0 / dy) * dy, y1, dy).concat(y1),
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xLines = xSteps.map(function(x) { return ySteps.map(function(y) { return [x, y]; }); }),
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yLines = ySteps.map(function(y) { return xSteps.map(function(x) { return [x, y]; }); });
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return xLines.concat(yLines).map(function(coordinates) {
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return {
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type: "LineString",
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@ -7,6 +7,7 @@ function d3_geo_projection(project) {
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// TODO Expose this API? Not that happy with it.
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function d3_geo_projectionMutator(projectAt) {
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var project,
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rotate,
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projectRotate,
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k = 150,
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x = 480,
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};
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p.line = function(coordinates, context) {
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var point = p(coordinates[0]), i = 0, n = coordinates.length;
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if (!(n = coordinates.length)) return;
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var location = rotateLocation(coordinates[0]),
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λ0 = location[0],
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φ0 = location[1],
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point = transformPoint(λ0, φ0),
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λ1,
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φ1,
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δλ,
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sλ0,
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n;
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context.moveTo(point[0], point[1]);
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while (++i < n) context.lineTo((point = p(coordinates[i]))[0], point[1]);
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for (var i = 0; i < n; i++) {
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location = rotateLocation(coordinates[i]);
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λ1 = location[0];
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φ1 = location[1];
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δλ = (Math.abs(λ1 - λ0) + 2 * π) % (2 * π);
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sλ0 = λ0 > 0;
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if (i && sλ0 ^ (λ1 > 0) && (δλ >= π || δλ < ε && Math.abs(Math.abs(λ0) - π) < ε)) {
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φ0 = intersect(λ0, φ0, λ1, φ1);
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context.lineTo((point = transformPoint(sλ0 ? π : -π, φ0))[0], point[1]);
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context.moveTo((point = transformPoint(sλ0 ? -π : π, φ0))[0], point[1]);
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}
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context.lineTo((point = transformPoint(λ0 = λ1, φ0 = φ1))[0], point[1]);
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}
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};
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p.ring = function(coordinates, context) {
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context.closePath();
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};
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function intersect(λ0, φ0, λ1, φ1) {
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var cosφ0,
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cosφ1,
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sinλ0_λ1 = Math.sin(λ0 - λ1);
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return Math.abs(sinλ0_λ1) > ε
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? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1)
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- Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0))
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/ (cosφ0 * cosφ1 * sinλ0_λ1))
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: (φ0 + φ1) / 2;
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}
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function rotateLocation(coordinates) {
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return rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
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}
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function transformPoint(λ, φ) {
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var point = project(λ, φ);
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return [point[0] * k + δx, δy - point[1] * k];
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}
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p.scale = function(_) {
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if (!arguments.length) return k;
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k = +_;
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@ -74,7 +116,7 @@ function d3_geo_projectionMutator(projectAt) {
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};
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function reset() {
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projectRotate = d3_geo_compose(d3_geo_rotation(δλ, δφ, δγ), project);
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projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
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var center = project(λ, φ);
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δx = x - center[0] * k;
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δy = y + center[1] * k;
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