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@ -203,21 +203,23 @@ Graph3d.prototype._convert3Dto2D = function(point3d) { |
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* camera |
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*/ |
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Graph3d.prototype._convertPointToTranslation = function(point3d) { |
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var ax = point3d.x * this.scale.x, |
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var cameraLocation = this.camera.getCameraLocation(), |
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cameraRotation = this.camera.getCameraRotation(), |
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ax = point3d.x * this.scale.x, |
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ay = point3d.y * this.scale.y, |
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az = point3d.z * this.scale.z, |
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cx = this.camera.getCameraLocation().x, |
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cy = this.camera.getCameraLocation().y, |
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cz = this.camera.getCameraLocation().z, |
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cx = cameraLocation.x, |
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cy = cameraLocation.y, |
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cz = cameraLocation.z, |
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// calculate angles
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sinTx = Math.sin(this.camera.getCameraRotation().x), |
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cosTx = Math.cos(this.camera.getCameraRotation().x), |
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sinTy = Math.sin(this.camera.getCameraRotation().y), |
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cosTy = Math.cos(this.camera.getCameraRotation().y), |
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sinTz = Math.sin(this.camera.getCameraRotation().z), |
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cosTz = Math.cos(this.camera.getCameraRotation().z), |
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sinTx = Math.sin(cameraRotation.x), |
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cosTx = Math.cos(cameraRotation.x), |
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sinTy = Math.sin(cameraRotation.y), |
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cosTy = Math.cos(cameraRotation.y), |
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sinTz = Math.sin(cameraRotation.z), |
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cosTz = Math.cos(cameraRotation.z), |
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// calculate translation
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dx = cosTy * (sinTz * (ay - cy) + cosTz * (ax - cx)) - sinTy * (az - cz), |
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@ -292,47 +294,6 @@ Graph3d.prototype._calcTranslations = function(points, sort) { |
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}; |
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/** |
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* Determine the indexes of the data columns, based on the given style and data |
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* @param {DataSet} data |
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* @param {Number} style |
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*/ |
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Graph3d.prototype._determineColumnIndexes = function(data, style) { |
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if (this.style === Graph3d.STYLE.DOT || |
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this.style === Graph3d.STYLE.DOTLINE || |
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this.style === Graph3d.STYLE.LINE || |
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this.style === Graph3d.STYLE.GRID || |
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this.style === Graph3d.STYLE.SURFACE || |
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this.style === Graph3d.STYLE.BAR) { |
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// 3 columns expected, and optionally a 4th with filter values
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this.colX = 0; |
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this.colY = 1; |
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this.colZ = 2; |
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this.colValue = undefined; |
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if (data.getNumberOfColumns() > 3) { |
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this.colFilter = 3; |
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} |
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} |
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else if (this.style === Graph3d.STYLE.DOTCOLOR || |
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this.style === Graph3d.STYLE.DOTSIZE || |
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this.style === Graph3d.STYLE.BARCOLOR || |
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this.style === Graph3d.STYLE.BARSIZE) { |
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// 4 columns expected, and optionally a 5th with filter values
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this.colX = 0; |
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this.colY = 1; |
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this.colZ = 2; |
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this.colValue = 3; |
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if (data.getNumberOfColumns() > 4) { |
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this.colFilter = 4; |
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} |
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} |
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else { |
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throw new Error('Unknown style "' + this.style + '"'); |
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} |
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}; |
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Graph3d.prototype.getNumberOfRows = function(data) { |
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return data.length; |
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} |
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@ -361,14 +322,57 @@ Graph3d.prototype.getDistinctValues = function(data, column) { |
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Graph3d.prototype.getColumnRange = function(data,column) { |
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var minMax = {min:data[0][column],max:data[0][column]}; |
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var minMax; |
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for (var i = 0; i < data.length; i++) { |
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if (minMax.min > data[i][column]) { minMax.min = data[i][column]; } |
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if (minMax.max < data[i][column]) { minMax.max = data[i][column]; } |
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var item = data[i][column]; |
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if (i === 0) { |
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minMax = { min: item, max: item}; |
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} else { |
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if (minMax.min > item) { minMax.min = item; } |
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if (minMax.max < item) { minMax.max = item; } |
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} |
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} |
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return minMax; |
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}; |
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/** |
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* Check if the state is consistent for the use of the value field. |
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* |
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* Throws if a problem is detected. |
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*/ |
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Graph3d.prototype._checkValueField = function (data) { |
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var hasValueField = this.style === Graph3d.STYLE.BARCOLOR |
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|| this.style === Graph3d.STYLE.BARSIZE |
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|| this.style === Graph3d.STYLE.DOTCOLOR |
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|| this.style === Graph3d.STYLE.DOTSIZE; |
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if (!hasValueField) { |
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return; // No need to check further
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} |
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// Following field must be present for the current graph style
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if (this.colValue === undefined) { |
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throw new Error('Expected data to have ' |
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+ ' field \'style\' ' |
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+ ' for graph style \'' + this.style + '\'' |
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); |
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} |
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// The data must also contain this field.
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// Note that only first data element is checked
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if (data[0][this.colValue] === undefined) { |
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throw new Error('Expected data to have ' |
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+ ' field \'' + this.colValue + '\' ' |
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+ ' for graph style \'' + this.style + '\'' |
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); |
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} |
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}; |
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/** |
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* Initialize the data from the data table. Calculate minimum and maximum values |
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* and column index values |
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@ -410,12 +414,6 @@ Graph3d.prototype._dataInitialize = function (rawData, style) { |
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}; |
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this.dataSet.on('*', this._onChange); |
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// _determineColumnIndexes
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// getNumberOfRows (points)
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// getNumberOfColumns (x,y,z,v,t,t1,t2...)
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// getDistinctValues (unique values?)
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// getColumnRange
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// determine the location of x,y,z,value,filter columns
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this.colX = 'x'; |
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this.colY = 'y'; |
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@ -423,7 +421,8 @@ Graph3d.prototype._dataInitialize = function (rawData, style) { |
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// check if a filter column is provided
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if (data[0].hasOwnProperty('filter')) { |
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this.colFilter = 'filter'; // Bugfix: only set this field if it's actually present!
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// Only set this field if it's actually present
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this.colFilter = 'filter'; |
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if (this.dataFilter === undefined) { |
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this.dataFilter = new Filter(rawData, this.colFilter, this); |
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@ -482,7 +481,6 @@ Graph3d.prototype._dataInitialize = function (rawData, style) { |
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if (this.zMax <= this.zMin) this.zMax = this.zMin + 1; |
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this.zStep = (this.defaultZStep !== undefined) ? this.defaultZStep : (this.zMax-this.zMin)/5; |
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// Bugfix: Only handle field 'style' if it's actually present
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if (data[0].hasOwnProperty('style')) { |
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this.colValue = 'style'; |
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var valueRange = this.getColumnRange(data,this.colValue); |
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@ -580,29 +578,7 @@ Graph3d.prototype._getDataPoints = function (data) { |
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} |
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} |
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else { // 'dot', 'dot-line', etc.
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// Bugfix: ensure value field is present in data if expected
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var hasValueField = this.style === Graph3d.STYLE.BARCOLOR |
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|| this.style === Graph3d.STYLE.BARSIZE |
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|| this.style === Graph3d.STYLE.DOTCOLOR |
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|| this.style === Graph3d.STYLE.DOTSIZE; |
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if (hasValueField) { |
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if (this.colValue === undefined) { |
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throw new Error('Expected data to have ' |
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+ ' field \'style\' ' |
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+ ' for graph style \'' + this.style + '\'' |
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); |
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} |
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if (data[0][this.colValue] === undefined) { |
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throw new Error('Expected data to have ' |
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+ ' field \'' + this.colValue + '\' ' |
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+ ' for graph style \'' + this.style + '\'' |
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); |
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} |
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} |
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this._checkValueField(data); |
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// copy all values from the google data table to a list with Point3d objects
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for (i = 0; i < data.length; i++) { |
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@ -908,6 +884,7 @@ Graph3d.prototype._dotSize = function() { |
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*/ |
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Graph3d.prototype._getLegendWidth = function() { |
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var width; |
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if (this.style === Graph3d.STYLE.DOTSIZE) { |
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var dotSize = this._dotSize(); |
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width = dotSize / 2 + dotSize * 2; |
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@ -926,12 +903,16 @@ Graph3d.prototype._getLegendWidth = function() { |
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Graph3d.prototype._redrawLegend = function() { |
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//Return without drawing anything, if no legend is specified
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if (this.showLegend !== true) {return;} |
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if (this.showLegend !== true) { |
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return; |
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} |
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// Do not draw legend when graph style does not support
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if (this.style === Graph3d.STYLE.LINE |
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|| this.style === Graph3d.STYLE.BARSIZE //TODO add legend support for BARSIZE
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){return;} |
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){ |
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return; |
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} |
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// Legend types - size and color. Determine if size legend.
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var isSizeLegend = (this.style === Graph3d.STYLE.BARSIZE |
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@ -1004,13 +985,13 @@ Graph3d.prototype._redrawLegend = function() { |
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step.start(true); |
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var y; |
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var from; |
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var to; |
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while (!step.end()) { |
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y = bottom - (step.getCurrent() - legendMin) / (legendMax - legendMin) * height; |
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ctx.beginPath(); |
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ctx.moveTo(left - gridLineLen, y); |
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ctx.lineTo(left, y); |
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ctx.stroke(); |
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from = new Point2d(left - gridLineLen, y); |
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to = new Point2d(left, y); |
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this._line(ctx, from, to); |
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ctx.textAlign = 'right'; |
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ctx.textBaseline = 'middle'; |
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@ -1024,7 +1005,6 @@ Graph3d.prototype._redrawLegend = function() { |
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ctx.textBaseline = 'top'; |
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var label = this.legendLabel; |
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ctx.fillText(label, right, bottom + this.margin); |
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}; |
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/** |
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@ -1390,6 +1370,21 @@ Graph3d.prototype._hsv2rgb = function(H, S, V) { |
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}; |
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Graph3d.prototype._drawGridLine = function(ctx, from, to) { |
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if (from === undefined || to === undefined) { |
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return; |
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} |
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// calculate Hue from the current value. At zMin the hue is 240, at zMax the hue is 0
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var zAvg = (from.point.z + to.point.z) / 2; |
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var h = (1 - (zAvg - this.zMin) * this.scale.z / this.verticalRatio) * 240; |
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ctx.lineWidth = this._getStrokeWidth(from) * 2; |
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ctx.strokeStyle = this._hsv2rgb(h, 1, 1); |
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this._line(ctx, from.screen, to.screen); |
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}; |
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/** |
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* Draw all datapoints as a grid |
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* This function can be used when the style is 'grid' |
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@ -1412,9 +1407,9 @@ Graph3d.prototype._redrawDataGrid = function() { |
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if (this.style === Graph3d.STYLE.SURFACE) { |
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for (i = 0; i < this.dataPoints.length; i++) { |
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point = this.dataPoints[i]; |
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right = this.dataPoints[i].pointRight; |
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top = this.dataPoints[i].pointTop; |
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cross = this.dataPoints[i].pointCross; |
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right = point.pointRight; |
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top = point.pointTop; |
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cross = point.pointCross; |
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if (point !== undefined && right !== undefined && top !== undefined && cross !== undefined) { |
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@ -1474,28 +1469,8 @@ Graph3d.prototype._redrawDataGrid = function() { |
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else { // grid style
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for (i = 0; i < this.dataPoints.length; i++) { |
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point = this.dataPoints[i]; |
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right = this.dataPoints[i].pointRight; |
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top = this.dataPoints[i].pointTop; |
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if (point !== undefined && right !== undefined) { |
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// calculate Hue from the current value. At zMin the hue is 240, at zMax the hue is 0
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zAvg = (point.point.z + right.point.z) / 2; |
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h = (1 - (zAvg - this.zMin) * this.scale.z / this.verticalRatio) * 240; |
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ctx.lineWidth = this._getStrokeWidth(point) * 2; |
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ctx.strokeStyle = this._hsv2rgb(h, 1, 1); |
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this._line(ctx, point.screen, right.screen); |
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} |
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if (point !== undefined && top !== undefined) { |
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// calculate Hue from the current value. At zMin the hue is 240, at zMax the hue is 0
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zAvg = (point.point.z + top.point.z) / 2; |
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h = (1 - (zAvg - this.zMin) * this.scale.z / this.verticalRatio) * 240; |
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ctx.lineWidth = this._getStrokeWidth(point) * 2; |
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ctx.strokeStyle = this._hsv2rgb(h, 1, 1); |
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this._line(ctx, point.screen, top.screen); |
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} |
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this._drawGridLine(ctx, point, point.pointRight); |
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this._drawGridLine(ctx, point, point.pointTop); |
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} |
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} |
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}; |
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