Index: chrome/test/functional/perf/endure_graphs/js/coordinates.js |
=================================================================== |
--- chrome/test/functional/perf/endure_graphs/js/coordinates.js (revision 261231) |
+++ chrome/test/functional/perf/endure_graphs/js/coordinates.js (working copy) |
@@ -1,212 +0,0 @@ |
-/* |
- Copyright (c) 2012 The Chromium Authors. All rights reserved. |
- Use of this source code is governed by a BSD-style license that can be |
- found in the LICENSE file. |
-*/ |
- |
-/** |
- * @fileoverview Class and functions to handle positioning of plot data points. |
- */ |
- |
-/** |
- * Class that handles plot data positioning. |
- * @constructor |
- * |
- * @param {Array} plotData Data that will be plotted. It is an array of lines, |
- * where each line is an array of points, and each point is a length-2 array |
- * representing an (x, y) pair. |
- */ |
-function Coordinates(plotData) { |
- this.plotData = plotData; |
- |
- height = window.innerHeight - 16; |
- width = window.innerWidth - 16; |
- |
- this.widthMax = width; |
- this.heightMax = Math.min(400, height - 85); |
- |
- this.processValues_('x'); |
- this.processValues_('y'); |
-} |
- |
-/** |
- * Determines the min/max x or y values in the plot, accounting for some extra |
- * buffer space. |
- * |
- * @param {string} type The type of value to process, either 'x' or 'y'. |
- */ |
-Coordinates.prototype.processValues_ = function (type) { |
- var merged = []; |
- for (var i = 0; i < this.plotData.length; i++) |
- for (var j = 0; j < this.plotData[i].length; j++) { |
- if (type == 'x') |
- merged.push(parseFloat(this.plotData[i][j][0])); // Index 0 is x value. |
- else |
- merged.push(parseFloat(this.plotData[i][j][1])); // Index 1 is y value. |
- } |
- |
- min = merged[0]; |
- max = merged[0]; |
- for (var i = 1; i < merged.length; ++i) { |
- if (isNaN(min) || merged[i] < min) |
- min = merged[i]; |
- if (isNaN(max) || merged[i] > max) |
- max = merged[i]; |
- } |
- |
- var bufferSpace = 0.02 * (max - min); |
- |
- if (type == 'x') { |
- this.xBufferSpace_ = bufferSpace; |
- this.xMinValue_ = min; |
- this.xMaxValue_ = max; |
- } else { |
- this.yBufferSpace_ = bufferSpace; |
- this.yMinValue_ = min; |
- this.yMaxValue_ = max; |
- } |
-}; |
- |
-/** |
- * Difference between horizontal upper and lower limit values. |
- * |
- * @return {number} The x value range. |
- */ |
-Coordinates.prototype.xValueRange = function() { |
- return this.xUpperLimitValue() - this.xLowerLimitValue(); |
-}; |
- |
-/** |
- * Difference between vertical upper and lower limit values. |
- * |
- * @return {number} The y value range. |
- */ |
-Coordinates.prototype.yValueRange = function() { |
- return this.yUpperLimitValue() - this.yLowerLimitValue(); |
-}; |
- |
-/** |
- * Converts horizontal data value to pixel value on canvas. |
- * |
- * @param {number} value The x data value. |
- * @return {number} The corresponding x pixel value on the canvas. |
- */ |
-Coordinates.prototype.xPixel = function(value) { |
- return this.widthMax * |
- ((value - this.xLowerLimitValue()) / this.xValueRange()); |
-}; |
- |
-/** |
- * Converts vertical data value to pixel value on canvas. |
- * |
- * @param {number} value The y data value. |
- * @return {number} The corresponding y pixel value on the canvas. |
- */ |
-Coordinates.prototype.yPixel = function(value) { |
- if (this.yValueRange() == 0) { |
- // Completely horizontal lines should be centered horizontally. |
- return this.heightMax / 2; |
- } else { |
- return this.heightMax - |
- (this.heightMax * |
- (value - this.yLowerLimitValue()) / this.yValueRange()); |
- } |
-}; |
- |
-/** |
- * Converts x point on canvas to data value it represents. |
- * |
- * @param {number} position The x pixel value on the canvas. |
- * @return {number} The corresponding x data value. |
- */ |
-Coordinates.prototype.xValue = function(position) { |
- return this.xLowerLimitValue() + |
- (position / this.widthMax * this.xValueRange()); |
-}; |
- |
-/** |
- * Converts y point on canvas to data value it represents. |
- * |
- * @param {number} position The y pixel value on the canvas. |
- * @return {number} The corresponding y data value. |
- */ |
-Coordinates.prototype.yValue = function(position) { |
- var ratio = this.heightMax / (this.heightMax - position); |
- return this.yLowerLimitValue() + (this.yValueRange() / ratio); |
-}; |
- |
-/** |
- * Returns the minimum x value of all the data points. |
- * |
- * @return {number} The minimum x value of all the data points. |
- */ |
-Coordinates.prototype.xMinValue = function() { |
- return this.xMinValue_; |
-}; |
- |
-/** |
- * Returns the maximum x value of all the data points. |
- * |
- * @return {number} The maximum x value of all the data points. |
- */ |
-Coordinates.prototype.xMaxValue = function() { |
- return this.xMaxValue_; |
-}; |
- |
-/** |
- * Returns the minimum y value of all the data points. |
- * |
- * @return {number} The minimum y value of all the data points. |
- */ |
-Coordinates.prototype.yMinValue = function() { |
- return this.yMinValue_; |
-}; |
- |
-/** |
- * Returns the maximum y value of all the data points. |
- * |
- * @return {number} The maximum y value of all the data points. |
- */ |
-Coordinates.prototype.yMaxValue = function() { |
- return this.yMaxValue_; |
-}; |
- |
-/** |
- * Returns the x value at the lower limit of the bounding box of the canvas. |
- * |
- * @return {number} The x value at the lower limit of the bounding box of |
- * the canvas. |
- */ |
-Coordinates.prototype.xLowerLimitValue = function() { |
- return this.xMinValue_ - this.xBufferSpace_; |
-}; |
- |
-/** |
- * Returns the x value at the upper limit of the bounding box of the canvas. |
- * |
- * @return {number} The x value at the upper limit of the bounding box of |
- * the canvas. |
- */ |
-Coordinates.prototype.xUpperLimitValue = function() { |
- return this.xMaxValue_ + this.xBufferSpace_; |
-}; |
- |
-/** |
- * Returns the y value at the lower limit of the bounding box of the canvas. |
- * |
- * @return {number} The y value at the lower limit of the bounding box of |
- * the canvas. |
- */ |
-Coordinates.prototype.yLowerLimitValue = function() { |
- return this.yMinValue_ - this.yBufferSpace_; |
-}; |
- |
-/** |
- * Returns the y value at the upper limit of the bounding box of the canvas. |
- * |
- * @return {number} The y value at the upper limit of the bounding box of |
- * the canvas. |
- */ |
-Coordinates.prototype.yUpperLimitValue = function() { |
- return this.yMaxValue_ + this.yBufferSpace_; |
-}; |