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@ -8,9 +8,6 @@ var Filter = require('./Filter'); |
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var Slider = require('./Slider'); |
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var Slider = require('./Slider'); |
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var StepNumber = require('./StepNumber'); |
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var StepNumber = require('./StepNumber'); |
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// -----------------------------------------------------------------------------
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// Definitions private to module
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// -----------------------------------------------------------------------------
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/// enumerate the available styles
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/// enumerate the available styles
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Graph3d.STYLE = { |
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Graph3d.STYLE = { |
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@ -28,59 +25,14 @@ Graph3d.STYLE = { |
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/** |
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/** |
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* Field names in the options hash which are of relevance to the user. |
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* |
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* Specifically, these are the fields which require no special handling, |
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* and can be directly copied over. |
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*/ |
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var OPTIONKEYS = [ |
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'width', |
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'height', |
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'filterLabel', |
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'legendLabel', |
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'xLabel', |
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'yLabel', |
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'zLabel', |
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'xValueLabel', |
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'yValueLabel', |
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'zValueLabel', |
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'showGrid', |
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'showPerspective', |
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'showShadow', |
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'keepAspectRatio', |
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'verticalRatio', |
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'showAnimationControls', |
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'animationInterval', |
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'animationPreload', |
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'animationAutoStart', |
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'axisColor', |
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'gridColor', |
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'xCenter', |
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'yCenter' |
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]; |
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/** |
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* Field names in the options hash which are of relevance to the user. |
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* |
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* Same as OPTIONKEYS, but internally these fields are stored with |
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* prefix 'default' in the name. |
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* Following label is used in the settings to describe values which |
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* should be determined by the code while running, from the current |
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* data and graph style. |
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* |
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* Using 'undefined' directly achieves the same thing, but this is |
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* more descriptive by describing the intent. |
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*/ |
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*/ |
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var PREFIXEDOPTIONKEYS = [ |
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'xBarWidth', |
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'yBarWidth', |
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'valueMin', |
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'valueMax', |
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'xMin', |
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'xMax', |
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'xStep', |
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'yMin', |
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'yMax', |
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'yStep', |
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'zMin', |
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'zMax', |
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'zStep' |
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]; |
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var autoByDefault = undefined; |
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/** |
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/** |
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@ -89,15 +41,8 @@ var PREFIXEDOPTIONKEYS = [ |
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* These are the values used when a Graph3d instance is initialized |
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* These are the values used when a Graph3d instance is initialized |
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* without custom settings. |
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* without custom settings. |
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* |
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* |
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* If a field is not in this list, a default value of 'undefined' can |
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* be assumed. Of course, it does no harm to set a field explicitly to |
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* 'undefined' here. |
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* |
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* A value of 'undefined' here normally means: |
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* |
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* 'derive from current data and graph style' |
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* |
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* In the code, this is indicated by the comment 'auto by default'. |
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* If a field is not in this list, a default value of 'autoByDefault' |
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* is assumed, which is just an alias for 'undefined'. |
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*/ |
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*/ |
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var DEFAULTS = { |
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var DEFAULTS = { |
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width : '400px', |
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width : '400px', |
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@ -114,29 +59,27 @@ var DEFAULTS = { |
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showPerspective : true, |
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showPerspective : true, |
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showShadow : false, |
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showShadow : false, |
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keepAspectRatio : true, |
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keepAspectRatio : true, |
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verticalRatio : 0.5, // 0.1 to 1.0, where 1.0 results in a 'cube'
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verticalRatio : 0.5, // 0.1 to 1.0, where 1.0 results in a 'cube'
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showAnimationControls: undefined, // auto by default
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animationInterval : 1000, // milliseconds
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showAnimationControls: autoByDefault, |
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animationInterval : 1000, // milliseconds
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animationPreload : false, |
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animationPreload : false, |
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animationAutoStart : undefined, // auto by default
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animationAutoStart : autoByDefault, |
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axisColor : '#4D4D4D', |
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axisColor : '#4D4D4D', |
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gridColor : '#D3D3D3', |
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gridColor : '#D3D3D3', |
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xCenter : '55%', |
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xCenter : '55%', |
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yCenter : '50%', |
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yCenter : '50%', |
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// Following require special handling, therefore not mentioned in the OPTIONKEYS tables.
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style : Graph3d.STYLE.DOT, |
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style : Graph3d.STYLE.DOT, |
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tooltip : false, |
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tooltip : false, |
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showLegend : undefined, // auto by default (based on graph style)
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backgroundColor : undefined, |
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showLegend : autoByDefault, // determined by graph style
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backgroundColor : autoByDefault, |
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dataColor : { |
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dataColor : { |
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fill : '#7DC1FF', |
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fill : '#7DC1FF', |
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stroke : '#3267D2', |
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stroke : '#3267D2', |
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strokeWidth: 1 // px
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strokeWidth: 1 // px
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}, |
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}, |
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cameraPosition : { |
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cameraPosition : { |
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@ -145,102 +88,22 @@ var DEFAULTS = { |
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distance : 1.7 |
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distance : 1.7 |
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}, |
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}, |
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// Following stored internally with field prefix 'default'
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// All these are 'auto by default'
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xBarWidth : undefined, |
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yBarWidth : undefined, |
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valueMin : undefined, |
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valueMax : undefined, |
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xMin : undefined, |
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xMax : undefined, |
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xStep : undefined, |
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yMin : undefined, |
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yMax : undefined, |
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yStep : undefined, |
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zMin : undefined, |
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zMax : undefined, |
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zStep : undefined |
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xBarWidth : autoByDefault, |
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yBarWidth : autoByDefault, |
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valueMin : autoByDefault, |
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valueMax : autoByDefault, |
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xMin : autoByDefault, |
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xMax : autoByDefault, |
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xStep : autoByDefault, |
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yMin : autoByDefault, |
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yMax : autoByDefault, |
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yStep : autoByDefault, |
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zMin : autoByDefault, |
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zMax : autoByDefault, |
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zStep : autoByDefault |
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}; |
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}; |
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/** |
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* Make first letter of parameter upper case. |
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* |
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* Source: http://stackoverflow.com/a/1026087
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*/ |
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function capitalize(str) { |
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if (str === undefined || str === "") { |
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return str; |
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} |
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return str.charAt(0).toUpperCase() + str.slice(1); |
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} |
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/** |
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* Add a prefix to a field name, taking style guide into account |
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*/ |
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function prefixFieldName(prefix, fieldName) { |
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if (prefix === undefined || prefix === "") { |
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return fieldName; |
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} |
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return prefix + capitalize(fieldName); |
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} |
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/** |
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* Forcibly copy fields from src to dst in a controlled manner. |
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* |
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* A given field in dst will always be overwitten. If this field |
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* is undefined or not present in src, the field in dst will |
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* be explicitly set to undefined. |
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* |
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* The intention here is to be able to reset all option fields. |
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* |
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* Only the fields mentioned in array 'fields' will be handled. |
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* |
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* @param fields array with names of fields to copy |
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* @param prefix optional; prefix to use for the target fields. |
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*/ |
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function forceCopy(src, dst, fields, prefix) { |
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var srcKey; |
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var dstKey; |
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for (var i in fields) { |
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srcKey = fields[i]; |
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dstKey = prefixFieldName(prefix, srcKey); |
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dst[dstKey] = src[srcKey]; |
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} |
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} |
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/** |
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* Copy fields from src to dst in a safe and controlled manner. |
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* |
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* Only the fields mentioned in array 'fields' will be copied over, |
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* and only if these are actually defined. |
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* |
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* @param fields array with names of fields to copy |
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* @param prefix optional; prefix to use for the target fields. |
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*/ |
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function safeCopy(src, dst, fields, prefix) { |
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var srcKey; |
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var dstKey; |
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for (var i in fields) { |
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srcKey = fields[i]; |
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if (src[srcKey] === undefined) continue; |
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dstKey = prefixFieldName(prefix, srcKey); |
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dst[dstKey] = src[srcKey]; |
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} |
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} |
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// Class Graph3d
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// Class Graph3d
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@ -272,27 +135,7 @@ function Graph3d(container, data, options) { |
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// create a frame and canvas
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// create a frame and canvas
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this.create(); |
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this.create(); |
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//
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// Set Defaults
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//
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// Handle the defaults which can be simply copied over
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forceCopy(DEFAULTS, this, OPTIONKEYS); |
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forceCopy(DEFAULTS, this, PREFIXEDOPTIONKEYS, 'default'); |
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// Following are internal fields, not part of the user settings
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this.margin = 10; // px
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this.showGrayBottom = false; // TODO: this does not work correctly
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this.showTooltip = false; |
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this.dotSizeRatio = 0.02; // size of the dots as a fraction of the graph width
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this.eye = new Point3d(0, 0, -1); // TODO: set eye.z about 3/4 of the width of the window?
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// Handle the more complex ('special') fields
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this._setSpecialSettings(DEFAULTS, this); |
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//
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// End Set Defaults
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//
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this._setDefaults(); |
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// the column indexes
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// the column indexes
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this.colX = undefined; |
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this.colX = undefined; |
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@ -459,278 +302,87 @@ Graph3d.prototype._calcTranslations = function(points, sort) { |
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}; |
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}; |
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// -----------------------------------------------------------------------------
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// Methods for handling settings
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// -----------------------------------------------------------------------------
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/** |
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/** |
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* Special handling for certain parameters |
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* |
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* 'Special' here means: setting requires more than a simple copy |
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* Retrieve the style index from given styleName |
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* @param {string} styleName Style name such as 'dot', 'grid', 'dot-line' |
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* @return {Number} styleNumber Enumeration value representing the style, or -1 |
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* when not found |
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*/ |
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*/ |
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Graph3d.prototype._setSpecialSettings = function(src, dst) { |
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if (src.backgroundColor !== undefined) { |
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this._setBackgroundColor(src.backgroundColor, dst); |
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Graph3d.prototype._getStyleNumber = function(styleName) { |
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switch (styleName) { |
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case 'dot': return Graph3d.STYLE.DOT; |
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case 'dot-line': return Graph3d.STYLE.DOTLINE; |
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case 'dot-color': return Graph3d.STYLE.DOTCOLOR; |
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case 'dot-size': return Graph3d.STYLE.DOTSIZE; |
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case 'line': return Graph3d.STYLE.LINE; |
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case 'grid': return Graph3d.STYLE.GRID; |
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case 'surface': return Graph3d.STYLE.SURFACE; |
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case 'bar': return Graph3d.STYLE.BAR; |
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case 'bar-color': return Graph3d.STYLE.BARCOLOR; |
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case 'bar-size': return Graph3d.STYLE.BARSIZE; |
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} |
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} |
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this._setDataColor(src.dataColor, dst); |
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this._setStyle(src.style, dst); |
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this._setShowLegend(src.showLegend, dst); |
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this._setCameraPosition(src.cameraPosition, dst); |
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// As special fields go, this is an easy one; just a translation of the name.
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// Can't use this.tooltip directly, because that field exists internally
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if (src.tooltip !== undefined) { |
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dst.showTooltip = src.tooltip; |
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} |
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|
|
|
|
|
|
|
return -1; |
|
|
}; |
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
/** |
|
|
* Set the value of setting 'showLegend' |
|
|
|
|
|
* |
|
|
|
|
|
* This depends on the value of the style fields, so it must be called |
|
|
|
|
|
* after the style field has been initialized. |
|
|
|
|
|
|
|
|
* Determine the indexes of the data columns, based on the given style and data |
|
|
|
|
|
* @param {DataSet} data |
|
|
|
|
|
* @param {Number} style |
|
|
*/ |
|
|
*/ |
|
|
Graph3d.prototype._setShowLegend = function(showLegend, dst) { |
|
|
|
|
|
if (showLegend === undefined) { |
|
|
|
|
|
// If the default was auto, make a choice for this field
|
|
|
|
|
|
var isAutoByDefault = (DEFAULTS.showLegend === undefined); |
|
|
|
|
|
|
|
|
Graph3d.prototype._determineColumnIndexes = function(data, style) { |
|
|
|
|
|
if (this.style === Graph3d.STYLE.DOT || |
|
|
|
|
|
this.style === Graph3d.STYLE.DOTLINE || |
|
|
|
|
|
this.style === Graph3d.STYLE.LINE || |
|
|
|
|
|
this.style === Graph3d.STYLE.GRID || |
|
|
|
|
|
this.style === Graph3d.STYLE.SURFACE || |
|
|
|
|
|
this.style === Graph3d.STYLE.BAR) { |
|
|
|
|
|
// 3 columns expected, and optionally a 4th with filter values
|
|
|
|
|
|
this.colX = 0; |
|
|
|
|
|
this.colY = 1; |
|
|
|
|
|
this.colZ = 2; |
|
|
|
|
|
this.colValue = undefined; |
|
|
|
|
|
|
|
|
if (isAutoByDefault) { |
|
|
|
|
|
// these styles default to having legends
|
|
|
|
|
|
var isLegendGraphStyle = this.style === Graph3d.STYLE.DOTCOLOR |
|
|
|
|
|
|| this.style === Graph3d.STYLE.DOTSIZE; |
|
|
|
|
|
|
|
|
if (data.getNumberOfColumns() > 3) { |
|
|
|
|
|
this.colFilter = 3; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
else if (this.style === Graph3d.STYLE.DOTCOLOR || |
|
|
|
|
|
this.style === Graph3d.STYLE.DOTSIZE || |
|
|
|
|
|
this.style === Graph3d.STYLE.BARCOLOR || |
|
|
|
|
|
this.style === Graph3d.STYLE.BARSIZE) { |
|
|
|
|
|
// 4 columns expected, and optionally a 5th with filter values
|
|
|
|
|
|
this.colX = 0; |
|
|
|
|
|
this.colY = 1; |
|
|
|
|
|
this.colZ = 2; |
|
|
|
|
|
this.colValue = 3; |
|
|
|
|
|
|
|
|
this.showLegend = isLegendGraphStyle; |
|
|
|
|
|
} else { |
|
|
|
|
|
// Leave current value as is
|
|
|
|
|
|
|
|
|
if (data.getNumberOfColumns() > 4) { |
|
|
|
|
|
this.colFilter = 4; |
|
|
} |
|
|
} |
|
|
} else { |
|
|
|
|
|
dst.showLegend = showLegend; |
|
|
|
|
|
|
|
|
} |
|
|
|
|
|
else { |
|
|
|
|
|
throw new Error('Unknown style "' + this.style + '"'); |
|
|
} |
|
|
} |
|
|
}; |
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
Graph3d.prototype.getNumberOfRows = function(data) { |
|
|
|
|
|
return data.length; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Graph3d.prototype._setStyle = function(style, dst) { |
|
|
|
|
|
if (style === undefined) { |
|
|
|
|
|
return; // Nothing to do
|
|
|
|
|
|
|
|
|
Graph3d.prototype.getNumberOfColumns = function(data) { |
|
|
|
|
|
var counter = 0; |
|
|
|
|
|
for (var column in data[0]) { |
|
|
|
|
|
if (data[0].hasOwnProperty(column)) { |
|
|
|
|
|
counter++; |
|
|
|
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
var styleNumber; |
|
|
|
|
|
|
|
|
|
|
|
if (typeof style === 'string') { |
|
|
|
|
|
styleNumber = this._getStyleNumber(style); |
|
|
|
|
|
|
|
|
|
|
|
if (styleNumber === -1 ) { |
|
|
|
|
|
throw new Error('Style \'' + style + '\' is invalid'); |
|
|
|
|
|
} |
|
|
|
|
|
} else { |
|
|
|
|
|
// Do a pedantic check on style number value
|
|
|
|
|
|
var valid = false; |
|
|
|
|
|
for (var n in Graph3d.STYLE) { |
|
|
|
|
|
if (Graph3d.STYLE[n] === style) { |
|
|
|
|
|
valid = true; |
|
|
|
|
|
break; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
if (!valid) { |
|
|
|
|
|
throw new Error('Style \'' + style + '\' is invalid'); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
styleNumber = style; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
dst.style = styleNumber; |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* Set the background styling for the graph |
|
|
|
|
|
* @param {string | {fill: string, stroke: string, strokeWidth: string}} backgroundColor |
|
|
|
|
|
*/ |
|
|
|
|
|
Graph3d.prototype._setBackgroundColor = function(backgroundColor, dst) { |
|
|
|
|
|
var fill = 'white'; |
|
|
|
|
|
var stroke = 'gray'; |
|
|
|
|
|
var strokeWidth = 1; |
|
|
|
|
|
|
|
|
|
|
|
if (typeof(backgroundColor) === 'string') { |
|
|
|
|
|
fill = backgroundColor; |
|
|
|
|
|
stroke = 'none'; |
|
|
|
|
|
strokeWidth = 0; |
|
|
|
|
|
} |
|
|
|
|
|
else if (typeof(backgroundColor) === 'object') { |
|
|
|
|
|
if (backgroundColor.fill !== undefined) fill = backgroundColor.fill; |
|
|
|
|
|
if (backgroundColor.stroke !== undefined) stroke = backgroundColor.stroke; |
|
|
|
|
|
if (backgroundColor.strokeWidth !== undefined) strokeWidth = backgroundColor.strokeWidth; |
|
|
|
|
|
} |
|
|
|
|
|
else { |
|
|
|
|
|
throw new Error('Unsupported type of backgroundColor'); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
dst.frame.style.backgroundColor = fill; |
|
|
|
|
|
dst.frame.style.borderColor = stroke; |
|
|
|
|
|
dst.frame.style.borderWidth = strokeWidth + 'px'; |
|
|
|
|
|
dst.frame.style.borderStyle = 'solid'; |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Graph3d.prototype._setDataColor = function(dataColor, dst) { |
|
|
|
|
|
if (dataColor === undefined) { |
|
|
|
|
|
return; // Nothing to do
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
if (dst.dataColor === undefined) { |
|
|
|
|
|
dst.dataColor = {}; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
if (typeof dataColor === 'string') { |
|
|
|
|
|
dst.dataColor.fill = dataColor; |
|
|
|
|
|
dst.dataColor.stroke = dataColor; |
|
|
|
|
|
} |
|
|
|
|
|
else { |
|
|
|
|
|
if (dataColor.fill) { |
|
|
|
|
|
dst.dataColor.fill = dataColor.fill; |
|
|
|
|
|
} |
|
|
|
|
|
if (dataColor.stroke) { |
|
|
|
|
|
dst.dataColor.stroke = dataColor.stroke; |
|
|
|
|
|
} |
|
|
|
|
|
if (dataColor.strokeWidth !== undefined) { |
|
|
|
|
|
dst.dataColor.strokeWidth = dataColor.strokeWidth; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Graph3d.prototype._setCameraPosition = function(cameraPosition, dst) { |
|
|
|
|
|
var camPos = cameraPosition; |
|
|
|
|
|
if (camPos === undefined) { |
|
|
|
|
|
return; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
if (dst.camera === undefined) { |
|
|
|
|
|
dst.camera = new Camera(); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
dst.camera.setArmRotation(camPos.horizontal, camPos.vertical); |
|
|
|
|
|
dst.camera.setArmLength(camPos.distance); |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
|
|
|
|
// Public methods for specific settings
|
|
|
|
|
|
//
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* Set the rotation and distance of the camera |
|
|
|
|
|
* @param {Object} pos An object with the camera position. The object |
|
|
|
|
|
* contains three parameters: |
|
|
|
|
|
* - horizontal {Number} |
|
|
|
|
|
* The horizontal rotation, between 0 and 2*PI. |
|
|
|
|
|
* Optional, can be left undefined. |
|
|
|
|
|
* - vertical {Number} |
|
|
|
|
|
* The vertical rotation, between 0 and 0.5*PI |
|
|
|
|
|
* if vertical=0.5*PI, the graph is shown from the |
|
|
|
|
|
* top. Optional, can be left undefined. |
|
|
|
|
|
* - distance {Number} |
|
|
|
|
|
* The (normalized) distance of the camera to the |
|
|
|
|
|
* center of the graph, a value between 0.71 and 5.0. |
|
|
|
|
|
* Optional, can be left undefined. |
|
|
|
|
|
*/ |
|
|
|
|
|
Graph3d.prototype.setCameraPosition = function(pos) { |
|
|
|
|
|
this._setCameraPosition(pos, this); |
|
|
|
|
|
this.redraw(); |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
|
|
// End methods for handling settings
|
|
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* Retrieve the style index from given styleName |
|
|
|
|
|
* @param {string} styleName Style name such as 'dot', 'grid', 'dot-line' |
|
|
|
|
|
* @return {Number} styleNumber Enumeration value representing the style, or -1 |
|
|
|
|
|
* when not found |
|
|
|
|
|
*/ |
|
|
|
|
|
Graph3d.prototype._getStyleNumber = function(styleName) { |
|
|
|
|
|
switch (styleName) { |
|
|
|
|
|
case 'dot': return Graph3d.STYLE.DOT; |
|
|
|
|
|
case 'dot-line': return Graph3d.STYLE.DOTLINE; |
|
|
|
|
|
case 'dot-color': return Graph3d.STYLE.DOTCOLOR; |
|
|
|
|
|
case 'dot-size': return Graph3d.STYLE.DOTSIZE; |
|
|
|
|
|
case 'line': return Graph3d.STYLE.LINE; |
|
|
|
|
|
case 'grid': return Graph3d.STYLE.GRID; |
|
|
|
|
|
case 'surface': return Graph3d.STYLE.SURFACE; |
|
|
|
|
|
case 'bar': return Graph3d.STYLE.BAR; |
|
|
|
|
|
case 'bar-color': return Graph3d.STYLE.BARCOLOR; |
|
|
|
|
|
case 'bar-size': return Graph3d.STYLE.BARSIZE; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
return -1; |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
* Determine the indexes of the data columns, based on the given style and data |
|
|
|
|
|
* @param {DataSet} data |
|
|
|
|
|
* @param {Number} style |
|
|
|
|
|
*/ |
|
|
|
|
|
Graph3d.prototype._determineColumnIndexes = function(data, style) { |
|
|
|
|
|
if (this.style === Graph3d.STYLE.DOT || |
|
|
|
|
|
this.style === Graph3d.STYLE.DOTLINE || |
|
|
|
|
|
this.style === Graph3d.STYLE.LINE || |
|
|
|
|
|
this.style === Graph3d.STYLE.GRID || |
|
|
|
|
|
this.style === Graph3d.STYLE.SURFACE || |
|
|
|
|
|
this.style === Graph3d.STYLE.BAR) { |
|
|
|
|
|
// 3 columns expected, and optionally a 4th with filter values
|
|
|
|
|
|
this.colX = 0; |
|
|
|
|
|
this.colY = 1; |
|
|
|
|
|
this.colZ = 2; |
|
|
|
|
|
this.colValue = undefined; |
|
|
|
|
|
|
|
|
|
|
|
if (data.getNumberOfColumns() > 3) { |
|
|
|
|
|
this.colFilter = 3; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
else if (this.style === Graph3d.STYLE.DOTCOLOR || |
|
|
|
|
|
this.style === Graph3d.STYLE.DOTSIZE || |
|
|
|
|
|
this.style === Graph3d.STYLE.BARCOLOR || |
|
|
|
|
|
this.style === Graph3d.STYLE.BARSIZE) { |
|
|
|
|
|
// 4 columns expected, and optionally a 5th with filter values
|
|
|
|
|
|
this.colX = 0; |
|
|
|
|
|
this.colY = 1; |
|
|
|
|
|
this.colZ = 2; |
|
|
|
|
|
this.colValue = 3; |
|
|
|
|
|
|
|
|
|
|
|
if (data.getNumberOfColumns() > 4) { |
|
|
|
|
|
this.colFilter = 4; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
else { |
|
|
|
|
|
throw new Error('Unknown style "' + this.style + '"'); |
|
|
|
|
|
} |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
Graph3d.prototype.getNumberOfRows = function(data) { |
|
|
|
|
|
return data.length; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Graph3d.prototype.getNumberOfColumns = function(data) { |
|
|
|
|
|
var counter = 0; |
|
|
|
|
|
for (var column in data[0]) { |
|
|
|
|
|
if (data[0].hasOwnProperty(column)) { |
|
|
|
|
|
counter++; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
return counter; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
return counter; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Graph3d.prototype.getDistinctValues = function(data, column) { |
|
|
Graph3d.prototype.getDistinctValues = function(data, column) { |
|
@ -1203,16 +855,7 @@ Graph3d.prototype.setOptions = function (options) { |
|
|
|
|
|
|
|
|
this.animationStop(); |
|
|
this.animationStop(); |
|
|
|
|
|
|
|
|
if (options !== undefined) { |
|
|
|
|
|
// retrieve parameter values
|
|
|
|
|
|
|
|
|
|
|
|
// Handle the parameters which can be simply copied over
|
|
|
|
|
|
safeCopy(options, this, OPTIONKEYS); |
|
|
|
|
|
safeCopy(options, this, PREFIXEDOPTIONKEYS, 'default'); |
|
|
|
|
|
|
|
|
|
|
|
// Handle the more complex ('special') fields
|
|
|
|
|
|
this._setSpecialSettings(options, this); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
this._setOptions(options); |
|
|
|
|
|
|
|
|
this.setSize(this.width, this.height); |
|
|
this.setSize(this.width, this.height); |
|
|
|
|
|
|
|
@ -2571,4 +2214,362 @@ function getMouseY (event) { |
|
|
return event.targetTouches[0] && event.targetTouches[0].clientY || 0; |
|
|
return event.targetTouches[0] && event.targetTouches[0].clientY || 0; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
|
|
// Methods for handling settings
|
|
|
|
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|
// -----------------------------------------------------------------------------
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/** |
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* Field names in the options hash which are of relevance to the user. |
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* |
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* Specifically, these are the fields which require no special handling, |
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* and can be directly copied over. |
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*/ |
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var OPTIONKEYS = [ |
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'width', |
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'height', |
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'filterLabel', |
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'legendLabel', |
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'xLabel', |
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'yLabel', |
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'zLabel', |
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'xValueLabel', |
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'yValueLabel', |
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'zValueLabel', |
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'showGrid', |
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'showPerspective', |
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'showShadow', |
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'keepAspectRatio', |
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'verticalRatio', |
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'showAnimationControls', |
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'animationInterval', |
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'animationPreload', |
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'animationAutoStart', |
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'axisColor', |
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'gridColor', |
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'xCenter', |
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'yCenter' |
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]; |
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/** |
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* Field names in the options hash which are of relevance to the user. |
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* |
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* Same as OPTIONKEYS, but internally these fields are stored with |
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* prefix 'default' in the name. |
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*/ |
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var PREFIXEDOPTIONKEYS = [ |
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'xBarWidth', |
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'yBarWidth', |
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'valueMin', |
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'valueMax', |
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'xMin', |
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'xMax', |
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'xStep', |
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'yMin', |
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'yMax', |
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'yStep', |
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'zMin', |
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'zMax', |
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'zStep' |
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]; |
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/** |
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* Make first letter of parameter upper case. |
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* |
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* Source: http://stackoverflow.com/a/1026087
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*/ |
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function capitalize(str) { |
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if (str === undefined || str === "") { |
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return str; |
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} |
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return str.charAt(0).toUpperCase() + str.slice(1); |
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} |
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/** |
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* Add a prefix to a field name, taking style guide into account |
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*/ |
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function prefixFieldName(prefix, fieldName) { |
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if (prefix === undefined || prefix === "") { |
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return fieldName; |
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} |
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return prefix + capitalize(fieldName); |
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} |
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/** |
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* Forcibly copy fields from src to dst in a controlled manner. |
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* |
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* A given field in dst will always be overwitten. If this field |
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* is undefined or not present in src, the field in dst will |
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* be explicitly set to undefined. |
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* |
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* The intention here is to be able to reset all option fields. |
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* |
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* Only the fields mentioned in array 'fields' will be handled. |
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* |
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* @param fields array with names of fields to copy |
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* @param prefix optional; prefix to use for the target fields. |
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*/ |
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function forceCopy(src, dst, fields, prefix) { |
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var srcKey; |
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var dstKey; |
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for (var i in fields) { |
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srcKey = fields[i]; |
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dstKey = prefixFieldName(prefix, srcKey); |
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dst[dstKey] = src[srcKey]; |
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} |
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} |
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/** |
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* Copy fields from src to dst in a safe and controlled manner. |
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* |
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* Only the fields mentioned in array 'fields' will be copied over, |
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* and only if these are actually defined. |
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* |
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* @param fields array with names of fields to copy |
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* @param prefix optional; prefix to use for the target fields. |
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*/ |
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function safeCopy(src, dst, fields, prefix) { |
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var srcKey; |
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var dstKey; |
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for (var i in fields) { |
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srcKey = fields[i]; |
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if (src[srcKey] === undefined) continue; |
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dstKey = prefixFieldName(prefix, srcKey); |
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dst[dstKey] = src[srcKey]; |
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} |
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} |
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Graph3d.prototype._setDefaults = function() { |
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// Handle the defaults which can be simply copied over
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forceCopy(DEFAULTS, this, OPTIONKEYS); |
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forceCopy(DEFAULTS, this, PREFIXEDOPTIONKEYS, 'default'); |
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// Handle the more complex ('special') fields
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this._setSpecialSettings(DEFAULTS, this); |
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// Following are internal fields, not part of the user settings
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this.margin = 10; // px
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this.showGrayBottom = false; // TODO: this does not work correctly
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this.showTooltip = false; |
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this.dotSizeRatio = 0.02; // size of the dots as a fraction of the graph width
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this.eye = new Point3d(0, 0, -1); // TODO: set eye.z about 3/4 of the width of the window?
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}; |
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Graph3d.prototype._setOptions = function(options) { |
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if (options === undefined) { |
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return; |
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} |
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// Handle the parameters which can be simply copied over
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safeCopy(options, this, OPTIONKEYS); |
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safeCopy(options, this, PREFIXEDOPTIONKEYS, 'default'); |
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// Handle the more complex ('special') fields
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this._setSpecialSettings(options, this); |
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}; |
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/** |
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* Special handling for certain parameters |
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* |
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* 'Special' here means: setting requires more than a simple copy |
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*/ |
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Graph3d.prototype._setSpecialSettings = function(src, dst) { |
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if (src.backgroundColor !== undefined) { |
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this._setBackgroundColor(src.backgroundColor, dst); |
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} |
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this._setDataColor(src.dataColor, dst); |
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this._setStyle(src.style, dst); |
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this._setShowLegend(src.showLegend, dst); |
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this._setCameraPosition(src.cameraPosition, dst); |
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// As special fields go, this is an easy one; just a translation of the name.
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// Can't use this.tooltip directly, because that field exists internally
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if (src.tooltip !== undefined) { |
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dst.showTooltip = src.tooltip; |
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} |
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}; |
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/** |
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* Set the value of setting 'showLegend' |
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* |
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* This depends on the value of the style fields, so it must be called |
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* after the style field has been initialized. |
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*/ |
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Graph3d.prototype._setShowLegend = function(showLegend, dst) { |
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if (showLegend === undefined) { |
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// If the default was auto, make a choice for this field
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var isAutoByDefault = (DEFAULTS.showLegend === undefined); |
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if (isAutoByDefault) { |
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// these styles default to having legends
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var isLegendGraphStyle = this.style === Graph3d.STYLE.DOTCOLOR |
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|| this.style === Graph3d.STYLE.DOTSIZE; |
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this.showLegend = isLegendGraphStyle; |
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} else { |
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// Leave current value as is
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} |
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} else { |
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dst.showLegend = showLegend; |
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} |
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}; |
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Graph3d.prototype._setStyle = function(style, dst) { |
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if (style === undefined) { |
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return; // Nothing to do
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} |
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var styleNumber; |
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if (typeof style === 'string') { |
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styleNumber = this._getStyleNumber(style); |
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if (styleNumber === -1 ) { |
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throw new Error('Style \'' + style + '\' is invalid'); |
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} |
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} else { |
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// Do a pedantic check on style number value
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var valid = false; |
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for (var n in Graph3d.STYLE) { |
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if (Graph3d.STYLE[n] === style) { |
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valid = true; |
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break; |
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} |
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} |
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if (!valid) { |
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throw new Error('Style \'' + style + '\' is invalid'); |
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} |
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styleNumber = style; |
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} |
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dst.style = styleNumber; |
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}; |
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/** |
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* Set the background styling for the graph |
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* @param {string | {fill: string, stroke: string, strokeWidth: string}} backgroundColor |
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*/ |
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Graph3d.prototype._setBackgroundColor = function(backgroundColor, dst) { |
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var fill = 'white'; |
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var stroke = 'gray'; |
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var strokeWidth = 1; |
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if (typeof(backgroundColor) === 'string') { |
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fill = backgroundColor; |
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stroke = 'none'; |
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strokeWidth = 0; |
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} |
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else if (typeof(backgroundColor) === 'object') { |
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if (backgroundColor.fill !== undefined) fill = backgroundColor.fill; |
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if (backgroundColor.stroke !== undefined) stroke = backgroundColor.stroke; |
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if (backgroundColor.strokeWidth !== undefined) strokeWidth = backgroundColor.strokeWidth; |
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} |
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else { |
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throw new Error('Unsupported type of backgroundColor'); |
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} |
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dst.frame.style.backgroundColor = fill; |
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dst.frame.style.borderColor = stroke; |
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dst.frame.style.borderWidth = strokeWidth + 'px'; |
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dst.frame.style.borderStyle = 'solid'; |
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}; |
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Graph3d.prototype._setDataColor = function(dataColor, dst) { |
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if (dataColor === undefined) { |
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return; // Nothing to do
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} |
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if (dst.dataColor === undefined) { |
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dst.dataColor = {}; |
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} |
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if (typeof dataColor === 'string') { |
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dst.dataColor.fill = dataColor; |
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dst.dataColor.stroke = dataColor; |
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} |
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else { |
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if (dataColor.fill) { |
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dst.dataColor.fill = dataColor.fill; |
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} |
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if (dataColor.stroke) { |
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dst.dataColor.stroke = dataColor.stroke; |
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} |
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if (dataColor.strokeWidth !== undefined) { |
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dst.dataColor.strokeWidth = dataColor.strokeWidth; |
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} |
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} |
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}; |
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Graph3d.prototype._setCameraPosition = function(cameraPosition, dst) { |
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var camPos = cameraPosition; |
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if (camPos === undefined) { |
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return; |
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} |
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if (dst.camera === undefined) { |
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dst.camera = new Camera(); |
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} |
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dst.camera.setArmRotation(camPos.horizontal, camPos.vertical); |
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dst.camera.setArmLength(camPos.distance); |
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}; |
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//
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// Public methods for specific settings
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//
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/** |
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* Set the rotation and distance of the camera |
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* @param {Object} pos An object with the camera position. The object |
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* contains three parameters: |
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* - horizontal {Number} |
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* The horizontal rotation, between 0 and 2*PI. |
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* Optional, can be left undefined. |
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* - vertical {Number} |
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* The vertical rotation, between 0 and 0.5*PI |
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* if vertical=0.5*PI, the graph is shown from the |
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* top. Optional, can be left undefined. |
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* - distance {Number} |
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* The (normalized) distance of the camera to the |
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* center of the graph, a value between 0.71 and 5.0. |
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* Optional, can be left undefined. |
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*/ |
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Graph3d.prototype.setCameraPosition = function(pos) { |
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this._setCameraPosition(pos, this); |
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this.redraw(); |
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}; |
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// -----------------------------------------------------------------------------
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// End methods for handling settings
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// -----------------------------------------------------------------------------
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module.exports = Graph3d; |
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module.exports = Graph3d; |