814 строки
45 KiB
JavaScript
814 строки
45 KiB
JavaScript
var vows = require("vows"),
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_ = require("../../"),
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load = require("../load"),
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assert = require("../assert");
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var suite = vows.describe("d3.geo.path");
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suite.addBatch({
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"path": {
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topic: load("geo/path").expression("d3.geo.path"),
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"with an equirectangular projection": {
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topic: function(path) {
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return path()
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.context(testContext)
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.projection(_.geo.equirectangular()
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.scale(900 / Math.PI)
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.precision(0));
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},
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"renders a point": function(p) {
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p({
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type: "Point",
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coordinates: [-63, 18]
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 165, y: 160},
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{type: "arc", x: 165, y: 160, r: 4.5}
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]);
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},
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"renders a multipoint": function(p) {
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p({
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type: "MultiPoint",
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coordinates: [[-63, 18], [-62, 18], [-62, 17]]
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 165, y: 160}, {type: "arc", x: 165, y: 160, r: 4.5},
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{type: "moveTo", x: 170, y: 160}, {type: "arc", x: 170, y: 160, r: 4.5},
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{type: "moveTo", x: 170, y: 165}, {type: "arc", x: 170, y: 165, r: 4.5}
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]);
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},
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"renders a line string": function(p) {
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p({
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type: "Feature",
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geometry: {
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type: "LineString",
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coordinates: [[-63, 18], [-62, 18], [-62, 17]]
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}
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 165, y: 160},
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{type: "lineTo", x: 170, y: 160},
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{type: "lineTo", x: 170, y: 165}
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]);
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},
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"renders a polygon": function(p) {
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p({
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type: "Feature",
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geometry: {
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type: "Polygon",
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coordinates: [[[-63, 18], [-62, 18], [-62, 17], [-63, 18]]]
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}
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 165, y: 160},
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{type: "lineTo", x: 170, y: 160},
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{type: "lineTo", x: 170, y: 165},
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{type: "closePath"}
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]);
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},
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"renders a geometry collection": function(p) {
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p({
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type: "GeometryCollection",
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geometries: [{type: "Point", coordinates: [0, 0]}]
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 480, y: 250}, {type: "arc", x: 480, y: 250, r: 4.5}
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]);
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},
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"renders a feature collection": function(p) {
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p({
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type: "FeatureCollection",
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features: [{type: "Feature", geometry: {type: "Point", coordinates: [0, 0]}}]
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 480, y: 250}, {type: "arc", x: 480, y: 250, r: 4.5}
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]);
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},
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"longitudes wrap at ±180°": function(p) {
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p({type: "Point", coordinates: [180 + 1e-6, 0]});
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assert.deepEqual(testContext.buffer(), [{type: "moveTo", x: -420, y: 250}, {type: "arc", x: -420, y: 250, r: 4.5}]);
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},
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"observes the correct winding order of a tiny polygon": function(p) {
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p({type: "Polygon", coordinates: [[
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[-0.06904102953339501, 0.346043661846373],
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[-6.725674252975136e-15, 0.3981303360336475],
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[-6.742247658534323e-15, -0.08812465346531581],
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[-0.17301258217724075, -0.12278150669440671],
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[-0.06904102953339501, 0.346043661846373]]]});
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assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 1);
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},
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"area": {
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topic: function(p) {
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return p.area;
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},
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"of a polygon with no holes": function(area) {
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assert.strictEqual(area({type: "Polygon", coordinates: [[[100, 0], [100, 1], [101, 1], [101, 0], [100, 0]]]}), 25);
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},
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"of a polygon with holes": function(area) {
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assert.strictEqual(area({type: "Polygon", coordinates: [[[100, 0], [100, 1], [101, 1], [101, 0], [100, 0]], [[100.2, .2], [100.8, .2], [100.8, .8], [100.2, .8], [100.2, .2]]]}), 16);
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},
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"area of a Sphere": function(area) {
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assert.strictEqual(area({type: "Sphere"}), 1620000);
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}
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},
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"centroid": {
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topic: function(p) {
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return p.centroid;
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},
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"of a point": function(centroid) {
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assert.deepEqual(centroid({type: "Point", coordinates: [0, 0]}), [480, 250]);
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},
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"of an empty multipoint": function(centroid) {
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assert.isUndefined(centroid({type: "MultiPoint", coordinates: []}));
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},
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"of a singleton multipoint": function(centroid) {
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assert.deepEqual(centroid({type: "MultiPoint", coordinates: [[0, 0]]}), [480, 250]);
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},
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"of a multipoint with two points": function(centroid) {
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assert.deepEqual(centroid({type: "MultiPoint", coordinates: [[-122, 37], [-74, 40]]}), [-10, 57.5]);
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},
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"of an empty linestring": function(centroid) {
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assert.isUndefined(centroid({type: "LineString", coordinates: []}));
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},
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"of a linestring with two points": function(centroid) {
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assert.deepEqual(centroid({type: "LineString", coordinates: [[100, 0], [0, 0]]}), [730, 250]);
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assert.deepEqual(centroid({type: "LineString", coordinates: [[0, 0], [100, 0], [101, 0]]}), [732.5, 250]);
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},
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"of a linestring with two points, one unique": function(centroid) {
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assert.isUndefined(centroid({type: "LineString", coordinates: [[-122, 37], [-122, 37]]}));
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assert.isUndefined(centroid({type: "LineString", coordinates: [[ -74, 40], [ -74, 40]]}));
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},
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"of a linestring with three points; two unique": function(centroid) {
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assert.deepEqual(centroid({type: "LineString", coordinates: [[-122, 37], [-74, 40], [-74, 40]]}), [-10, 57.5]);
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},
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"of a linestring with three points": function(centroid) {
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assert.inDelta(centroid({type: "LineString", coordinates: [[-122, 37], [-74, 40], [-100, 0]]}), [17.389135, 103.563545], 1e-6);
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},
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"of a multilinestring": function(centroid) {
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assert.deepEqual(centroid({type: "MultiLineString", coordinates: [[[100, 0], [0, 0]], [[-10, 0], [0, 0]]]}), [705, 250]);
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},
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"of a single-ring polygon": function(centroid) {
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assert.deepEqual(centroid({type: "Polygon", coordinates: [[[100, 0], [100, 1], [101, 1], [101, 0], [100, 0]]]}), [982.5, 247.5]);
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},
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"of a zero-area polygon": function(centroid) {
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assert.isUndefined(centroid({type: "Polygon", coordinates: [[[1, 0], [2, 0], [3, 0], [1, 0]]]}));
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},
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"of a polygon with two rings, one with zero area": function(centroid) {
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assert.deepEqual(centroid({type: "Polygon", coordinates: [
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[[100, 0], [100, 1], [101, 1], [101, 0], [100, 0]],
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[[100.1, 0], [100.2, 0], [100.3, 0], [100.1, 0]
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]]}), [982.5, 247.5]);
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},
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"of a polygon with clockwise exterior and anticlockwise interior": function(centroid) {
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assert.inDelta(centroid({
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type: "Polygon",
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coordinates: [
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[[-2, -2], [2, -2], [2, 2], [-2, 2], [-2, -2]].reverse(),
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[[ 0, -1], [1, -1], [1, 1], [ 0, 1], [ 0, -1]]
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]
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}), [479.642857, 250], 1e-6);
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},
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"of an empty multipolygon": function(centroid) {
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assert.isUndefined(centroid({type: "MultiPolygon", coordinates: []}));
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},
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"of a singleton multipolygon": function(centroid) {
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assert.deepEqual(centroid({type: "MultiPolygon", coordinates: [[[[100, 0], [100, 1], [101, 1], [101, 0], [100, 0]]]]}), [982.5, 247.5]);
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},
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"of a multipolygon with two polygons": function(centroid) {
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assert.deepEqual(centroid({type: "MultiPolygon", coordinates: [
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[[[100, 0], [100, 1], [101, 1], [101, 0], [100, 0]]],
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[[[0, 0], [1, 0], [1, -1], [0, -1], [0, 0]]]
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]}), [732.5, 250]);
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},
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"of a multipolygon with two polygons, one zero area": function(centroid) {
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assert.deepEqual(centroid({type: "MultiPolygon", coordinates: [
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[[[100, 0], [100, 1], [101, 1], [101, 0], [100, 0]]],
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[[[0, 0], [1, 0], [2, 0], [0, 0]]]
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]}), [982.5, 247.5]);
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},
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"of a geometry collection with a single point": function(centroid) {
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assert.deepEqual(centroid({type: "GeometryCollection", geometries: [{type: "Point", coordinates: [0, 0]}]}), [480, 250]);
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},
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"of a geometry collection with a point and a linestring": function(centroid) {
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assert.deepEqual(centroid({type: "GeometryCollection", geometries: [
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{type: "LineString", coordinates: [[179, 0], [180, 0]]},
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{type: "Point", coordinates: [0, 0]}
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]}), [1377.5, 250]);
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},
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"of a geometry collection with a point, linestring and polygon": function(centroid) {
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assert.deepEqual(centroid({type: "GeometryCollection", geometries: [
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{type: "Polygon", coordinates: [[[-180, 0], [-180, 1], [-179, 1], [-179, 0], [-180, 0]]]},
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{type: "LineString", coordinates: [[179, 0], [180, 0]]},
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{type: "Point", coordinates: [0, 0]}
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]}), [-417.5, 247.5]);
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},
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"of a feature collection with a point": function(centroid) {
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assert.deepEqual(centroid({type: "FeatureCollection", features: [{type: "Feature", geometry: {type: "Point", coordinates: [0, 0]}}]}), [480, 250]);
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},
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"of a feature collection with a point and a line string": function(centroid) {
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assert.deepEqual(centroid({type: "FeatureCollection", features: [
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{type: "Feature", geometry: {type: "LineString", coordinates: [[179, 0], [180, 0]]}},
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{type: "Feature", geometry: {type: "Point", coordinates: [0, 0]}}
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]}), [1377.5, 250]);
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},
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"of a feature collection with a point, line string and polygon": function(centroid) {
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assert.deepEqual(centroid({type: "FeatureCollection", features: [
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{type: "Feature", geometry: {type: "Polygon", coordinates: [[[-180, 0], [-180, 1], [-179, 1], [-179, 0], [-180, 0]]]}},
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{type: "Feature", geometry: {type: "LineString", coordinates: [[179, 0], [180, 0]]}},
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{type: "Feature", geometry: {type: "Point", coordinates: [0, 0]}}
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]}), [-417.5, 247.5]);
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},
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"of a sphere": function(centroid) {
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assert.deepEqual(centroid({type: "Sphere"}), [480, 250]);
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}
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}
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},
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"with a null (identity) projection": {
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topic: function(path) {
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return path()
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.context(testContext)
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.projection(null);
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},
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"renders a Polygon": function(p) {
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p({
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type: "Feature",
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geometry: {
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type: "Polygon",
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coordinates: [[[-63, 18], [-62, 18], [-62, 17], [-63, 18]]]
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}
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: -63, y: 18},
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{type: "lineTo", x: -62, y: 18},
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{type: "lineTo", x: -62, y: 17},
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{type: "closePath"}
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]);
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}
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},
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"with the default context (null) and an identity projection": {
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topic: function(path) {
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return path()
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.projection(_.geo.equirectangular()
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.scale(900 / Math.PI)
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.precision(0));
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},
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"returns null when passed null or undefined": function(p) {
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assert.equal(p(null), null);
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assert.equal(p(undefined), null);
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assert.equal(p(), null);
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},
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"returns null with bogus type name": function(p) {
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assert.equal(p({
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type: "Feature",
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geometry: {
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type: "__proto__",
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coordinates: [[[-63.03, 18.02], [-63.14, 18.06], [-63.01, 18.07], [-63.03, 18.02]]]
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}
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}), null);
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}
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},
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"with the default context (null) and default projection (albers-usa)": {
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topic: function(path) {
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return path();
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},
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"area of a polygon": function(p) {
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var area = p.area({type: "Polygon", coordinates: [[[-122, 37], [-71, 42], [-80, 25], [-122, 37]]]});
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assert.inDelta(area, 124884.274, 1e-3);
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},
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"bounds of a line string": function(p) {
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assert.inDelta(p.bounds({type: "LineString", coordinates: [[-122, 37], [-74, 40], [-100, 0]]}),
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[[109.378, 189.584], [797.758, 504.660]], 1e-3);
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},
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"centroid of a line string": function(p) {
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assert.inDelta(p.centroid({type: "LineString", coordinates: [[-122, 37], [-74, 40], [-100, 0]]}), [545.130, 253.859], 1e-3);
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}
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},
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"with an equirectangular projection rotated by [180, -248]": {
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topic: function(path) {
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return path()
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.context(testContext)
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.projection(_.geo.equirectangular()
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.rotate([-180, -248])
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.scale(900 / Math.PI)
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.precision(0));
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},
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"renders a polygon": function(p) {
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p({type: "Polygon", coordinates: [[[-175.03150315031502, 66.57410661866186], [-174.34743474347434, 66.33097912391239], [-174.5994599459946, 67.0603616081608], [-171.86318631863185, 66.90406536153614], [-169.9189918991899, 65.96628788178816], [-170.89108910891088, 65.53213164116411], [-172.54725472547256, 65.42793414341432], [-172.5832583258326, 64.45542416441643], [-172.97929792979298, 64.2470291689169], [-173.91539153915392, 64.28176166816681], [-174.67146714671466, 64.62908666066605], [-176.003600360036, 64.90694665466546], [-176.21962196219621, 65.34110289528951], [-177.22772277227722, 65.51476539153916], [-178.37983798379838, 65.37583539453945], [-178.91989198919893, 65.72316038703869], [-178.7038703870387, 66.10521787878787], [-179.8919891989199, 65.8620903840384], [-179.45994599459945, 65.3932016441644], [-180, 64.97641165316531], [-180, 68.95328281728172], [-177.55175517551754, 68.18916783378336], [-174.95949594959495, 67.19929160516051], [-175.03150315031502, 66.57410661866186]]]});
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assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 1370, y: 243}]);
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}
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},
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"projection": {
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"returns the current projection when called with no arguments": function(path) {
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var p = path(), projection = _.geo.equirectangular();
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p.projection(projection);
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assert.strictEqual(p.projection(), projection);
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}
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},
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"pointRadius": {
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"returns the current point radius when called with no arguments": function(path) {
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var p = path(), radius = function() { return 5; };
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assert.strictEqual(p.pointRadius(), 4.5);
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assert.strictEqual(p.pointRadius(radius).pointRadius(), radius);
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},
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"coerces point radius to a number": {
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"when the radius is specified as a constant": function(path) {
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var p = path().projection(null).context(testContext).pointRadius("6");
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assert.strictEqual(p.pointRadius(), 6);
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p({type: "Point", coordinates: [0, 0]});
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assert.strictEqual(testContext.buffer().filter(function(d) { return d.type === "arc"; })[0].r, 6);
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},
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"when the radius is specified as a function": function(path) {
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var p = path().projection(null).context(testContext).pointRadius(function() { return "6"; });
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p({type: "Point", coordinates: [0, 0]});
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assert.strictEqual(testContext.buffer().filter(function(d) { return d.type === "arc"; })[0].r, 6);
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}
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}
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},
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"with an equirectangular projection clipped to 90°": {
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topic: function(path) {
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return path()
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.context(testContext)
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.projection(_.geo.equirectangular()
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.scale(900 / Math.PI)
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.precision(0)
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.clipAngle(90));
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},
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"renders a point": function(p) {
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p({
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type: "Point",
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coordinates: [-63, 18]
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 165, y: 160}, {type: "arc", x: 165, y: 160, r: 4.5}
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]);
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},
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"renders a multipoint": function(p) {
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p({
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type: "MultiPoint",
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coordinates: [[-63, 18], [-62, 18], [-62, 17]]
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});
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assert.deepEqual(testContext.buffer(), [
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{type: "moveTo", x: 165, y: 160}, {type: "arc", x: 165, y: 160, r: 4.5},
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{type: "moveTo", x: 170, y: 160}, {type: "arc", x: 170, y: 160, r: 4.5},
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{type: "moveTo", x: 170, y: 165}, {type: "arc", x: 170, y: 165, r: 4.5}
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]);
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},
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"inserts exterior along clip edge if polygon interior surrounds it": function(p) {
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p({type: "Polygon", coordinates: [[[80, -80], [80, 80], [-80, 80], [-80, -80], [80, -80]]]});
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assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 2);
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},
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"inserts exterior along clip edge if polygon exterior surrounds it": function(p) {
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p({type: "Polygon", coordinates: [[[100, -80], [-100, -80], [-100, 80], [100, 80], [100, -80]]]});
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assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 1);
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},
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"renders a small circle of 60°": function(p) {
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p(_.geo.circle().angle(60)());
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assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 276, y: 493}]);
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},
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"renders a small circle of 120°": function(p) {
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p(_.geo.circle().angle(120)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 87, y: 700}]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [-17°, -451°]": {
|
||
"renders a polygon": function(path) {
|
||
var pole = _.range(-180, 180, 10).map(function(x) { return [x, 70]; });
|
||
pole.push(pole[0]);
|
||
path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([-17, -451])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90))({type: "Polygon", coordinates: [pole]});
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [
|
||
{type: "moveTo", x: 510, y: 160},
|
||
{type: "moveTo", x: 87, y: 700}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [71.03°, 42.37°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([71.03, 42.37])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90));
|
||
},
|
||
/*
|
||
"grid component": function(path) {
|
||
var yStepsBig = _.range(-90, 90, 10);
|
||
path({type: "LineString", coordinates: yStepsBig.map(function(y) { return [110, y]; })});
|
||
assert.inDelta(testContext.buffer(), [[
|
||
[109.538009, -90],
|
||
[110, -80],
|
||
[110, -70],
|
||
[110, -60],
|
||
[110, -50],
|
||
[110, -47.625390]
|
||
]], 1e-6);
|
||
},
|
||
*/
|
||
"can completely clip a LineString": function(p) {
|
||
p({type: "LineString", coordinates: [[90.0, -42.37], [95.0, -42.37], [90.0, -42.37]]});
|
||
assert.deepEqual(testContext.buffer(), []);
|
||
},
|
||
"doesn't insert a duplicate point": function(p) {
|
||
p({type: "LineString", coordinates: [[0, 0]]});
|
||
assert.deepEqual(testContext.buffer(), [{type: "moveTo", x: 859, y: 187}]);
|
||
},
|
||
"renders a visible point": function(p) {
|
||
p({type: "Point", coordinates: [0, 0]});
|
||
assert.deepEqual(testContext.buffer(), [{type: "moveTo", x: 859, y: 187}, {type: "arc", x: 859, y: 187, r: 4.5}]);
|
||
},
|
||
"does not render an invisible point": function(p) {
|
||
p({type: "Point", coordinates: [-180, 0]});
|
||
assert.deepEqual(testContext.buffer(), []);
|
||
},
|
||
"renders a multipoint": function(p) {
|
||
p({type: "MultiPoint", coordinates: [[0, 0], [-180, 0]]});
|
||
assert.deepEqual(testContext.buffer(), [{type: "moveTo", x: 859, y: 187}, {type: "arc", x: 859, y: 187, r: 4.5}]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [-24°, -175.5°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([-24, -175.5])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90));
|
||
},
|
||
"renders Antarctica with no gaps": function(p) {
|
||
p(antarctica);
|
||
assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 2);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [90°, 0°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([90, 0])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90));
|
||
},
|
||
"renders a small circle of 60°": function(p) {
|
||
p(_.geo.circle().angle(60)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 930, y: 550}]);
|
||
},
|
||
"renders a small circle of 120°": function(p) {
|
||
p(_.geo.circle().angle(120)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 30, y: 550}]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [180°, 0°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([180, 0])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90));
|
||
},
|
||
"does not render a small circle of 60°": function(p) {
|
||
p(_.geo.circle().angle(60)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), []);
|
||
},
|
||
"renders a small circle of 120° in two parts": function(p) {
|
||
p(_.geo.circle().angle(120)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [
|
||
{type: "moveTo", x: 276, y: 493},
|
||
{type: "moveTo", x: 87, y: 700}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [270°, 0°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([270, 0])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90));
|
||
},
|
||
"renders a small circle of 60°": function(p) {
|
||
p(_.geo.circle().angle(60)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 30, y: -50}]);
|
||
},
|
||
"renders a small circle of 120°": function(p) {
|
||
p(_.geo.circle().angle(120)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 930, y: -50}]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [210°, 1°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([210, 1])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90));
|
||
},
|
||
"renders a small circle of 120°": function(p) {
|
||
p(_.geo.circle().angle(120)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 930, y: 250}]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 90° and rotated by [-150°, 60°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.rotate([-150, 60])
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(90));
|
||
},
|
||
"renders a small circle of 120°": function(p) {
|
||
p(_.geo.circle().angle(120)());
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 30, y: -87}]);
|
||
},
|
||
"renders a sphere": function(p) {
|
||
p({type: "Sphere"});
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [{type: "moveTo", x: 87, y: 700}]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 170°": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(170));
|
||
},
|
||
"renders stripes": function(p) {
|
||
p(stripes(80, -80));
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [
|
||
{type: "moveTo", x: -420, y: -150},
|
||
{type: "moveTo", x: -420, y: 650},
|
||
{type: "moveTo", x: 1331, y: 259}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 170° and rotated by [0°, -90°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.rotate([0, -90])
|
||
.precision(0)
|
||
.clipAngle(170));
|
||
},
|
||
"renders stripes": function(p) {
|
||
p(stripes(80, -80));
|
||
assert.deepEqual(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }), [
|
||
{type: "moveTo", x: 480, y: 200},
|
||
{type: "moveTo", x: 1350, y: 210}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 30°": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(30));
|
||
},
|
||
"clips lines with two invisible endpoints and visible middle": function(p) {
|
||
p({type: "LineString", coordinates: [[-45, 0], [45, 0]]});
|
||
assert.deepEqual(testContext.buffer(), [
|
||
{type: "moveTo", x: 330, y: 250},
|
||
{type: "lineTo", x: 630, y: 250}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection clipped to 150°": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.precision(0)
|
||
.clipAngle(150));
|
||
},
|
||
"clips lines with two visible endpoints and invisible middle": function(p) {
|
||
p({type: "LineString", coordinates: [[135, 0], [-135, 0]]});
|
||
assert.deepEqual(testContext.buffer(), [
|
||
{type: "moveTo", x: 1155, y: 250},
|
||
{type: "lineTo", x: 1230, y: 250},
|
||
{type: "moveTo", x: -270, y: 250},
|
||
{type: "lineTo", x: -195, y: 250}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection rotated by [98°, 0°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.rotate([98, 0])
|
||
.precision(0));
|
||
},
|
||
"renders Keweenaw, a small U.S. county": function(p) {
|
||
p({
|
||
type: "Polygon",
|
||
coordinates: [[[-88.23013, 47.198326], [-88.514931, 47.285957], [-88.383484, 47.285957], [-88.23013, 47.198326]]]
|
||
});
|
||
assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 1);
|
||
},
|
||
"renders Accomack, a small U.S. county": function(p) {
|
||
p({
|
||
type: "MultiPolygon",
|
||
coordinates: [
|
||
[[[-75.397659, 38.013497], [-75.244304, 38.029928], [-75.666029, 37.465803], [-75.939876, 37.547957], [-75.671506, 37.95325], [-75.622213, 37.991589], [-75.397659, 38.013497]]],
|
||
[[[-76.016553, 37.95325], [-76.043938, 37.95325], [-75.994645, 37.95325], [-76.016553, 37.95325]]]
|
||
]
|
||
});
|
||
assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 2);
|
||
},
|
||
"renders Hopewell, a small U.S. county": function(p) {
|
||
p({
|
||
type: "Polygon",
|
||
coordinates: [[[-77.298157, 37.312448], [-77.298157, 37.312448], [-77.336496, 37.312448], [-77.281726, 37.312448], [-77.298157, 37.312448]]]
|
||
});
|
||
assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 1);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection rotated by [330°, 232°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.rotate([330, 232])
|
||
.precision(0));
|
||
},
|
||
"renders degenerate points for a small circle of 30°": function(p) {
|
||
p(_.geo.circle().angle(30)());
|
||
assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 2);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection rotated by [34.5°, 90°]": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.rotate([34.5, 90])
|
||
.precision(0));
|
||
},
|
||
"observes proper clip point ordering for lines": function(p) {
|
||
var line = _.range(-90, 180, 10).map(function(x) { return [x, 20]; })
|
||
.concat(_.range(170, -100, -10).map(function(x) { return [x, 0]; }))
|
||
.concat([[-90, 20]]);
|
||
p({type: "Polygon", coordinates: [line]});
|
||
assert.equal(testContext.buffer().filter(function(d) { return d.type === "moveTo"; }).length, 3);
|
||
}
|
||
},
|
||
|
||
"with an equirectangular projection with the viewport clipped to 960×500": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.equirectangular()
|
||
.scale(900 / Math.PI)
|
||
.clipExtent([[0, 0], [960, 500]])
|
||
.precision(0));
|
||
},
|
||
"doesn't generate a redundant closing point": function(p) {
|
||
p({type: "Polygon", coordinates: [[[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]]});
|
||
assert.deepEqual(testContext.buffer(), [
|
||
{type: "moveTo", x: 480, y: 250},
|
||
{type: "lineTo", x: 480, y: 245},
|
||
{type: "lineTo", x: 485, y: 245},
|
||
{type: "lineTo", x: 485, y: 250},
|
||
{type: "closePath"}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with a stereographic projection and adaptive resampling": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.stereographic()
|
||
.precision(1));
|
||
},
|
||
"correctly resamples points on antimeridian": function(p) {
|
||
p({type: "LineString", coordinates: [[0, 90], [90, 0]]});
|
||
assert.deepEqual(testContext.buffer(), [
|
||
{type: "moveTo", x: 480, y: 100},
|
||
{type: "lineTo", x: 509, y: 103},
|
||
{type: "lineTo", x: 537, y: 111},
|
||
{type: "lineTo", x: 563, y: 125},
|
||
{type: "lineTo", x: 586, y: 144},
|
||
{type: "lineTo", x: 605, y: 167},
|
||
{type: "lineTo", x: 619, y: 193},
|
||
{type: "lineTo", x: 627, y: 221},
|
||
{type: "lineTo", x: 630, y: 250}
|
||
]);
|
||
}
|
||
},
|
||
|
||
"with an Albers projection and adaptive resampling": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.albers()
|
||
.scale(140)
|
||
.rotate([0, 0])
|
||
.precision(1));
|
||
},
|
||
"correctly resamples near the poles": function(p) {
|
||
p({type: "LineString", coordinates: [[0, 88], [180, 89]]});
|
||
assert.isTrue(testContext.buffer().filter(function(d) { return d.type === "lineTo"; }).length > 1);
|
||
p({type: "LineString", coordinates: [[180, 90], [1, 89.5]]});
|
||
assert.isTrue(testContext.buffer().filter(function(d) { return d.type === "lineTo"; }).length > 1);
|
||
}
|
||
},
|
||
|
||
"with an Albers projection rotated by [11.5°, 285°] and adaptive resampling": {
|
||
topic: function(path) {
|
||
return path()
|
||
.context(testContext)
|
||
.projection(_.geo.albers()
|
||
.scale(140)
|
||
.rotate([11.5, 285])
|
||
.precision(1));
|
||
},
|
||
"correctly resamples near the poles": function(p) {
|
||
p({type: "LineString", coordinates: [[170, 20], [170, 0]]});
|
||
assert.isTrue(testContext.buffer().filter(function(d) { return d.type === "lineTo"; }).length > 1);
|
||
}
|
||
}
|
||
}
|
||
});
|
||
|
||
var testBuffer = [];
|
||
|
||
var testContext = {
|
||
arc: function(x, y, r, a0, a1) { testBuffer.push({type: "arc", x: Math.round(x), y: Math.round(y), r: r}); },
|
||
moveTo: function(x, y) { testBuffer.push({type: "moveTo", x: Math.round(x), y: Math.round(y)}); },
|
||
lineTo: function(x, y) { testBuffer.push({type: "lineTo", x: Math.round(x), y: Math.round(y)}); },
|
||
closePath: function() { testBuffer.push({type: "closePath"}); },
|
||
buffer: function() { var result = testBuffer; testBuffer = []; return result; }
|
||
};
|
||
|
||
function stripes(a, b) {
|
||
return {type: "Polygon", coordinates: [a, b].map(function(d, i) {
|
||
var stripe = _.range(-180, 180, 1).map(function(x) { return [x, d]; });
|
||
stripe.push(stripe[0]);
|
||
return i ? stripe.reverse() : stripe;
|
||
})};
|
||
}
|
||
|
||
var antarctica = {type: "Polygon", coordinates: 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|
||
|
||
suite.export(module);
|