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etpinardetpinard
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split colorscale methods into seperate files
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10 files changed

+345
-203
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10 files changed

+345
-203
lines changed

‎src/components/colorscale/calc.js

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/**
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* Copyright 2012-2015, Plotly, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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var Lib = require('../../lib');
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var scales = require('./scales');
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var flipScale = require('./flip_scale');
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module.exports = function calc(trace, vals, containerStr, cLetter) {
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var container, inputContainer;
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if(containerStr) {
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container = Lib.nestedProperty(trace, containerStr).get();
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inputContainer = Lib.nestedProperty(trace._input, containerStr).get();
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} else {
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container = trace;
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inputContainer = trace._input;
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}
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var auto = container[cLetter + 'auto'],
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min = container[cLetter + 'min'],
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max = container[cLetter + 'max'],
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scl = container.colorscale;
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if(auto!==false || min===undefined) {
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min = Lib.aggNums(Math.min, null, vals);
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}
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if(auto!==false || max===undefined) {
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max = Lib.aggNums(Math.max, null, vals);
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}
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if(min === max) {
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min -= 0.5;
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max += 0.5;
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}
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container[cLetter + 'min'] = min;
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container[cLetter + 'max'] = max;
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inputContainer[cLetter + 'min'] = min;
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inputContainer[cLetter + 'max'] = max;
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if(container.autocolorscale) {
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if(min * max < 0) scl = scales.RdBu;
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else if(min >= 0) scl = scales.Reds;
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else scl = scales.Blues;
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// reversescale is handled at the containerOut level
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inputContainer.colorscale = scl;
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if(container.reversescale) scl = flipScale(scl);
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container.colorscale = scl;
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}
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};

‎src/components/colorscale/default_scale.js

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/**
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* Copyright 2012-2015, Plotly, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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var scales = require('./scales');
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module.exports = scales.RdBu;

‎src/components/colorscale/defaults.js

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/**
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* Copyright 2012-2015, Plotly, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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var isNumeric = require('fast-isnumeric');
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var Lib = require('../../lib');
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var hasColorbar = require('../colorbar/has_colorbar');
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var colorbarDefaults = require('../colorbar/defaults');
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var isValidScale = require('./is_valid_scale');
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var flipScale = require('./flip_scale');
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module.exports = function colorScaleDefaults(traceIn, traceOut, layout, coerce, opts) {
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var prefix = opts.prefix,
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cLetter = opts.cLetter,
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containerStr = prefix.slice(0, prefix.length-1),
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containerIn = prefix ?
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Lib.nestedProperty(traceIn, containerStr).get() || {} :
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traceIn,
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containerOut = prefix ?
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Lib.nestedProperty(traceOut, containerStr).get() || {} :
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traceOut,
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minIn = containerIn[cLetter + 'min'],
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maxIn = containerIn[cLetter + 'max'],
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sclIn = containerIn.colorscale;
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var validMinMax = isNumeric(minIn) && isNumeric(maxIn) && (minIn < maxIn);
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coerce(prefix + cLetter + 'auto', !validMinMax);
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coerce(prefix + cLetter + 'min');
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coerce(prefix + cLetter + 'max');
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// handles both the trace case (autocolorscale is false by default) and
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// the marker and marker.line case (autocolorscale is true by default)
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var autoColorscaleDftl;
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if(sclIn!==undefined) autoColorscaleDftl = !isValidScale(sclIn);
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coerce(prefix + 'autocolorscale', autoColorscaleDftl);
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var sclOut = coerce(prefix + 'colorscale');
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// reversescale is handled at the containerOut level
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var reverseScale = coerce(prefix + 'reversescale');
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if(reverseScale) containerOut.colorscale = flipScale(sclOut);
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// ... until Scatter.colorbar can handle marker line colorbars
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if(prefix === 'marker.line.') return;
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// handle both the trace case where the dflt is listed in attributes and
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// the marker case where the dflt is determined by hasColorbar
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var showScaleDftl;
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if(prefix) showScaleDftl = hasColorbar(containerIn);
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var showScale = coerce(prefix + 'showscale', showScaleDftl);
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if(showScale) colorbarDefaults(containerIn, containerOut, layout);
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};

‎src/components/colorscale/flip_scale.js

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/**
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* Copyright 2012-2015, Plotly, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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module.exports = function flipScale(scl) {
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var N = scl.length,
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sclNew = new Array(N),
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si;
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for(var i = N-1, j = 0; i >= 0; i--, j++) {
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si = scl[i];
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sclNew[j] = [1 - si[0], si[1]];
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}
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return sclNew;
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};

‎src/components/colorscale/get_scale.js

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/**
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* Copyright 2012-2015, Plotly, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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var scales = require('./scales');
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var defaultScale = require('./default_scale');
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var isValidScaleArray = require('./is_valid_scale_array');
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module.exports = function getScale(scl, dflt) {
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if(!dflt) dflt = defaultScale;
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if(!scl) return dflt;
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function parseScale() {
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try {
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scl = scales[scl] || JSON.parse(scl);
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}
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catch(e) {
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scl = dflt;
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}
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}
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if(typeof scl === 'string') {
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parseScale();
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// occasionally scl is double-JSON encoded...
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if(typeof scl === 'string') parseScale();
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}
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if(!isValidScaleArray(scl)) return dflt;
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return scl;
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};

‎src/components/colorscale/has_colorscale.js

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/**
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* Copyright 2012-2015, Plotly, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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var isNumeric = require('fast-isnumeric');
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var Lib = require('../../lib');
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var isValidScale = require('./is_valid_scale');
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module.exports = function hasColorscale(trace, containerStr) {
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var container = containerStr ?
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Lib.nestedProperty(trace, containerStr).get() || {} :
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trace,
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color = container.color,
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isArrayWithOneNumber = false;
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if(Array.isArray(color)) {
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for(var i = 0; i < color.length; i++) {
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if(isNumeric(color[i])) {
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isArrayWithOneNumber = true;
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break;
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}
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}
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}
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return (
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(typeof container==='object' && container!==null) && (
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isArrayWithOneNumber ||
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container.showscale===true ||
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(isNumeric(container.cmin) && isNumeric(container.cmax)) ||
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isValidScale(container.colorscale) ||
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(typeof container.colorbar==='object' && container.colorbar!==null)
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)
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);
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};

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