var ToDomCoordsTestCase = TestCase("to-dom-coords");
-var _origFunc = Dygraph.getContext;
+ToDomCoordsTestCase._origFunc = Dygraph.getContext;
ToDomCoordsTestCase.prototype.setUp = function() {
document.body.innerHTML = "<div id='graph'></div>";
Dygraph.getContext = function(canvas) {
- return new Proxy(_origFunc(canvas));
+ return new Proxy(ToDomCoordsTestCase._origFunc(canvas));
}
};
ToDomCoordsTestCase.prototype.tearDown = function() {
- Dygraph.getContext = _origFunc;
+ Dygraph.getContext = ToDomCoordsTestCase._origFunc;
};
// Checks that toDomCoords and toDataCoords are inverses of one another.
ToDomCoordsTestCase.prototype.testPlainChart = function() {
var opts = {
- drawXAxis: false,
- drawYAxis: false,
- drawXGrid: false,
- drawYGrid: false,
+ axes : {
+ x : {
+ drawAxis : false,
+ drawGrid : false,
+ },
+ y : {
+ drawAxis : false,
+ drawGrid : false,
+ }
+ },
rightGap: 0,
valueRange: [0, 100],
dateWindow: [0, 100],
ToDomCoordsTestCase.prototype.testChartWithAxes = function() {
var opts = {
- drawXAxis: true,
+ axes : {
+ x : {
+ drawGrid: false,
+ drawAxis: true,
+ },
+ y : {
+ drawGrid: false,
+ drawAxis: true,
+ axisLabelWidth: 100
+ }
+ },
xAxisHeight: 50,
- drawYAxis: true,
- yAxisLabelWidth: 100,
axisTickSize: 0,
- drawXGrid: false,
- drawYGrid: false,
rightGap: 0,
valueRange: [0, 100],
dateWindow: [0, 100],
ToDomCoordsTestCase.prototype.testChartWithAxesAndLabels = function() {
var opts = {
- drawXAxis: true,
+ axes : {
+ x : {
+ drawGrid: false,
+ drawAxis: true,
+ },
+ y : {
+ drawGrid: false,
+ drawAxis: true,
+ axisLabelWidth: 100
+ }
+ },
xAxisHeight: 50,
- drawYAxis: true,
- yAxisLabelWidth: 100,
axisTickSize: 0,
- drawXGrid: false,
- drawYGrid: false,
rightGap: 0,
valueRange: [0, 100],
dateWindow: [0, 100],
this.checkForInverses(g);
}
+
+ToDomCoordsTestCase.prototype.testYAxisLabelWidth = function() {
+ var opts = {
+ axes: { y: { axisLabelWidth: 100 } },
+ axisTickSize: 0,
+ rightGap: 0,
+ valueRange: [0, 100],
+ dateWindow: [0, 100],
+ width: 500,
+ height: 500
+ }
+
+ var graph = document.getElementById("graph");
+ g = new Dygraph(graph, [ [0,0], [100,100] ], opts);
+
+ assertEquals([100, 0], g.toDomCoords(0, 100));
+ assertEquals([500, 486], g.toDomCoords(100, 0));
+
+ g.updateOptions({
+ axes: { y: { axisLabelWidth: 50 }},
+ });
+ assertEquals([50, 0], g.toDomCoords(0, 100));
+ assertEquals([500, 486], g.toDomCoords(100, 0));
+}
+
+ToDomCoordsTestCase.prototype.testAxisTickSize = function() {
+ var opts = {
+ axes: { y: { axisLabelWidth: 100 } },
+ axisTickSize: 0,
+ rightGap: 0,
+ valueRange: [0, 100],
+ dateWindow: [0, 100],
+ width: 500,
+ height: 500
+ }
+
+ var graph = document.getElementById("graph");
+ g = new Dygraph(graph, [ [0,0], [100,100] ], opts);
+
+ assertEquals([100, 0], g.toDomCoords(0, 100));
+ assertEquals([500, 486], g.toDomCoords(100, 0));
+
+ g.updateOptions({ axisTickSize : 50 });
+ assertEquals([200, 0], g.toDomCoords(0, 100));
+ assertEquals([500, 386], g.toDomCoords(100, 0));
+}
+
+ToDomCoordsTestCase.prototype.testChartLogarithmic_YAxis = function() {
+ var opts = {
+ rightGap: 0,
+ valueRange: [1, 4],
+ dateWindow: [0, 10],
+ width: 400,
+ height: 400,
+ colors: ['#ff0000'],
+ axes: {
+ x: {
+ drawGrid: false,
+ drawAxis: false
+ },
+ y: {
+ drawGrid: false,
+ drawAxis: false,
+ logscale: true
+ }
+ }
+ }
+
+ var graph = document.getElementById("graph");
+ g = new Dygraph(graph, [ [1,1], [4,4] ], opts);
+
+ var epsilon = 1e-8;
+ assertEqualsDelta([0, 4], g.toDataCoords(0, 0), epsilon);
+ assertEqualsDelta([0, 1], g.toDataCoords(0, 400), epsilon);
+ assertEqualsDelta([10, 4], g.toDataCoords(400, 0), epsilon);
+ assertEqualsDelta([10, 1], g.toDataCoords(400, 400), epsilon);
+ assertEqualsDelta([10, 2], g.toDataCoords(400, 200), epsilon);
+
+ assertEquals([0, 0], g.toDomCoords(0, 4));
+ assertEquals([0, 400], g.toDomCoords(0, 1));
+ assertEquals([400, 0], g.toDomCoords(10, 4));
+ assertEquals([400, 400], g.toDomCoords(10, 1));
+ assertEquals([400, 200], g.toDomCoords(10, 2));
+}
+
+ToDomCoordsTestCase.prototype.testChartLogarithmic_XAxis = function() {
+ var opts = {
+ rightGap: 0,
+ valueRange: [1, 1000],
+ dateWindow: [1, 1000],
+ width: 400,
+ height: 400,
+ colors: ['#ff0000'],
+ axes: {
+ x: {
+ drawGrid: false,
+ drawAxis: false,
+ logscale: true
+ },
+ y: {
+ drawGrid: false,
+ drawAxis: false
+ }
+ }
+ }
+
+ var graph = document.getElementById("graph");
+ g = new Dygraph(graph, [ [1,1], [10, 10], [100,100], [1000,1000] ], opts);
+
+ var epsilon = 1e-8;
+ assertEqualsDelta(1, g.toDataXCoord(0), epsilon);
+ assertEqualsDelta(5.623413251903489, g.toDataXCoord(100), epsilon);
+ assertEqualsDelta(31.62277660168378, g.toDataXCoord(200), epsilon);
+ assertEqualsDelta(177.8279410038921, g.toDataXCoord(300), epsilon);
+ assertEqualsDelta(1000, g.toDataXCoord(400), epsilon);
+
+ assertEqualsDelta(0, g.toDomXCoord(1), epsilon);
+ assertEqualsDelta(3.6036036036036037, g.toDomXCoord(10), epsilon);
+ assertEqualsDelta(39.63963963963964, g.toDomXCoord(100), epsilon);
+ assertEqualsDelta(400, g.toDomXCoord(1000), epsilon);
+
+ assertEqualsDelta(0, g.toPercentXCoord(1), epsilon);
+ assertEqualsDelta(0.3333333333, g.toPercentXCoord(10), epsilon);
+ assertEqualsDelta(0.6666666666, g.toPercentXCoord(100), epsilon);
+ assertEqualsDelta(1, g.toPercentXCoord(1000), epsilon);
+
+ // Now zoom in and ensure that the methods return reasonable values.
+ g.updateOptions({dateWindow: [ 10, 100 ]});
+
+ assertEqualsDelta(10, g.toDataXCoord(0), epsilon);
+ assertEqualsDelta(17.78279410038923, g.toDataXCoord(100), epsilon);
+ assertEqualsDelta(31.62277660168379, g.toDataXCoord(200), epsilon);
+ assertEqualsDelta(56.23413251903491, g.toDataXCoord(300), epsilon);
+ assertEqualsDelta(100, g.toDataXCoord(400), epsilon);
+
+ assertEqualsDelta(-40, g.toDomXCoord(1), epsilon);
+ assertEqualsDelta(0, g.toDomXCoord(10), epsilon);
+ assertEqualsDelta(400, g.toDomXCoord(100), epsilon);
+ assertEqualsDelta(4400, g.toDomXCoord(1000), epsilon);
+
+ assertEqualsDelta(-1, g.toPercentXCoord(1), epsilon);
+ assertEqualsDelta(0, g.toPercentXCoord(10), epsilon);
+ assertEqualsDelta(1, g.toPercentXCoord(100), epsilon);
+ assertEqualsDelta(2, g.toPercentXCoord(1000), epsilon);
+}
\ No newline at end of file