200 строки
9.5 KiB
JavaScript
200 строки
9.5 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.svg.area.radial");
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suite.addBatch({
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"area.radial": {
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topic: load("svg/area-radial").expression("d3.svg.area.radial"),
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"radius is an alias for setting innerRadius and outerRadius": function(area) {
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var a = area().radius(f);
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function f() {}
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assert.equal(a.radius(), f);
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assert.equal(a.innerRadius(), f);
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assert.equal(a.outerRadius(), f);
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},
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"radius is an alias for getting outerRadius": function(area) {
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var a = area().outerRadius(f);
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function f() {}
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assert.equal(a.radius(), f);
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},
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"angle is an alias for setting startAngle and endAngle": function(area) {
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var a = area().angle(f);
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function f() {}
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assert.equal(a.angle(), f);
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assert.equal(a.startAngle(), f);
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assert.equal(a.endAngle(), f);
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},
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"angle is an alias for getting endAngle": function(area) {
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var a = area().endAngle(f);
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function f() {}
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assert.equal(a.angle(), f);
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},
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"innerRadius defaults to a function accessor": function(area) {
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var a = area();
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L0,-10L0,-20L0,-20L0,-10Z");
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assert.typeOf(a.innerRadius(), "function");
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},
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"innerRadius can be defined as a constant": function(area) {
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var a = area().innerRadius(30);
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L0,-30L0,-30L0,-30L0,-30Z");
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assert.equal(a.innerRadius(), 30);
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},
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"innerRadius can be defined as a function": function(area) {
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var a = area().innerRadius(f), t = {}, dd = [], ii = [], tt = [];
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function f(d, i) { dd.push(d); ii.push(i); tt.push(this); return 30; }
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assert.pathEqual(a.call(t, [[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L0,-30L0,-30L0,-30L0,-30Z");
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assert.deepEqual(dd, [[10, 0], [20, 1], [20, 2], [10, 3]], "expected data, got {actual}");
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assert.deepEqual(ii, [0, 1, 2, 3], "expected index, got {actual}");
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assert.deepEqual(tt, [t, t, t, t], "expected this, got {actual}");
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},
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"outerRadius defaults to a function accessor": function(area) {
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var a = area();
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L0,-10L0,-20L0,-20L0,-10Z");
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assert.typeOf(a.outerRadius(), "function");
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},
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"outerRadius can be defined as a constant": function(area) {
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var a = area().outerRadius(30);
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-30L25.244130,-16.209069L27.278923,12.484405L4.233600,29.699775L0,-10L0,-20L0,-20L0,-10Z");
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assert.equal(a.outerRadius(), 30);
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},
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"outerRadius can be defined as a function": function(area) {
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var a = area().outerRadius(f), t = {}, dd = [], ii = [], tt = [];
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function f(d, i) { dd.push(d); ii.push(i); tt.push(this); return 30; }
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assert.pathEqual(a.call(t, [[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-30L25.244130,-16.209069L27.278923,12.484405L4.233600,29.699775L0,-10L0,-20L0,-20L0,-10Z");
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assert.deepEqual(dd, [[10, 0], [20, 1], [20, 2], [10, 3]], "expected data, got {actual}");
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assert.deepEqual(ii, [0, 1, 2, 3], "expected index, got {actual}");
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assert.deepEqual(tt, [t, t, t, t], "expected this, got {actual}");
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},
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"startAngle defaults to zero": function(area) {
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var a = area();
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L0,-10L0,-20L0,-20L0,-10Z");
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assert.equal(a.startAngle(), 0);
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},
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"startAngle can be defined as a constant": function(area) {
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var a = area().startAngle(Math.PI / 2);
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L10,0L20,0L20,0L10,0Z");
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assert.equal(a.startAngle(), Math.PI / 2);
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},
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"startAngle can be defined as a function": function(area) {
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var a = area().startAngle(f), t = {}, dd = [], ii = [], tt = [];
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function f(d, i) { dd.push(d); ii.push(i); tt.push(this); return Math.PI / 2; }
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assert.pathEqual(a.call(t, [[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L10,0L20,0L20,0L10,0Z");
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assert.deepEqual(dd, [[10, 0], [20, 1], [20, 2], [10, 3]], "expected data, got {actual}");
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assert.deepEqual(ii, [0, 1, 2, 3], "expected index, got {actual}");
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assert.deepEqual(tt, [t, t, t, t], "expected this, got {actual}");
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},
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"endAngle defaults to a function accessor": function(area) {
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var a = area();
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-10L16.829420,-10.806046L18.185949,8.322937L1.411200,9.899925L0,-10L0,-20L0,-20L0,-10Z");
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assert.typeOf(a.endAngle(), "function");
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},
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"endAngle can be defined as a constant": function(area) {
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var a = area().endAngle(Math.PI / 2);
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assert.pathEqual(a([[10, 0], [20, 1], [20, 2], [10, 3]]), "M10,0L20,0L20,0L10,0L0,-10L0,-20L0,-20L0,-10Z");
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assert.equal(a.endAngle(), Math.PI / 2);
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},
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"endAngle can be defined as a function": function(area) {
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var a = area().endAngle(f), t = {}, dd = [], ii = [], tt = [];
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function f(d, i) { dd.push(d); ii.push(i); tt.push(this); return Math.PI / 2; }
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assert.pathEqual(a.call(t, [[10, 0], [20, 1], [20, 2], [10, 3]]), "M10,0L20,0L20,0L10,0L0,-10L0,-20L0,-20L0,-10Z");
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assert.deepEqual(dd, [[10, 0], [20, 1], [20, 2], [10, 3]], "expected data, got {actual}");
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assert.deepEqual(ii, [0, 1, 2, 3], "expected index, got {actual}");
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assert.deepEqual(tt, [t, t, t, t], "expected this, got {actual}");
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},
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"if innerRadius === outerRadius, radius is only evaluated once per point": function(area) {
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var a = area().radius(f), t = {}, dd = [], ii = [], tt = [];
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function f(d, i) { dd.push(d); ii.push(i); tt.push(this); return 30; }
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assert.pathEqual(a.call(t, [[10, 0], [20, 1], [20, 2], [10, 3]]), "M0,-30L25.244130,-16.209069L27.278923,12.484405L4.233600,29.699775L0,-30L0,-30L0,-30L0,-30Z");
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assert.deepEqual(dd, [[10, 0], [20, 1], [20, 2], [10, 3]], "expected data, got {actual}");
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assert.deepEqual(ii, [0, 1, 2, 3], "expected index, got {actual}");
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assert.deepEqual(tt, [t, t, t, t], "expected this, got {actual}");
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},
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"if startAngle === endAngle, angle is only evaluated once per point": function(area) {
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var a = area().angle(f), t = {}, dd = [], ii = [], tt = [];
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function f(d, i) { dd.push(d); ii.push(i); tt.push(this); return Math.PI / 2; }
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assert.pathEqual(a.call(t, [[10, 0], [20, 1], [20, 2], [10, 3]]), "M10,0L20,0L20,0L10,0L10,0L20,0L20,0L10,0Z");
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assert.deepEqual(dd, [[10, 0], [20, 1], [20, 2], [10, 3]], "expected data, got {actual}");
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assert.deepEqual(ii, [0, 1, 2, 3], "expected index, got {actual}");
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assert.deepEqual(tt, [t, t, t, t], "expected this, got {actual}");
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},
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"interpolate defaults to linear": function(area) {
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assert.equal(area().interpolate(), "linear");
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},
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"interpolate can be defined as a constant": function(area) {
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var a = area().interpolate("step-before");
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assert.pathEqual(a([[0, 0], [1, 1]]), "M0,0V-0.540302H0.841471L0,-1H0V0Z");
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assert.equal(a.interpolate(), "step-before");
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},
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"tension defaults to .7": function(area) {
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assert.equal(area().tension(), .7);
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},
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"tension can be specified as a constant": function(area) {
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var a = area().tension(.5);
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assert.equal(a.tension(), .5);
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},
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"returns null if input points array is empty": function(area) {
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assert.isNull(area()([]));
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},
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"interpolate(linear)": {
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"supports linear interpolation": testInterpolation("linear")
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},
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"interpolate(step)": {
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"supports step-before interpolation": testInterpolation("step-before"),
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"supports step-after interpolation": testInterpolation("step-after")
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},
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"interpolate(basis)": {
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"supports basis interpolation": testInterpolation("basis"),
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"supports basis-open interpolation": testInterpolation("basis-open"),
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"supports basis-closed interpolation": testInterpolation("basis-closed")
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},
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"interpolate(cardinal)": {
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"supports cardinal interpolation": testInterpolation("cardinal"),
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"supports cardinal-open interpolation": testInterpolation("cardinal-open"),
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"supports cardinal-closed interpolation": testInterpolation("cardinal-closed")
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},
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"interpolate(monotone)": {
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"supports monotone interpolation": testInterpolation("monotone")
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}
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}
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});
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// A radial area is just a transformation of a Cartesian line.
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function testInterpolation(interpolate) {
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var data = [[10, 0], [20, 1], [20, 2], [10, 3]];
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var cartesian = _.svg.area()
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.x0(function(d) { return d[0] * Math.cos(d[1] - Math.PI / 2); })
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.x1(function(d) { return 2 * d[0] * Math.cos(d[1] - Math.PI / 2); })
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.y0(function(d) { return d[0] * Math.sin(d[1] - Math.PI / 2); })
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.y1(function(d) { return 2 * d[0] * Math.sin(d[1] - Math.PI / 2); });
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return function(area) {
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var radial = area()
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.innerRadius(function(d) { return d[0]; })
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.outerRadius(function(d) { return d[0] * 2; })
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.angle(function(d) { return d[1]; });
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assert.pathEqual(radial.interpolate(interpolate)(data), cartesian.interpolate(interpolate)(data));
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};
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}
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suite.export(module);
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