Function hasColorscale

src/components/colorscale/helpers.js:12–39

(trace, containerStr, colorKey)

var isValidScale = require('./scales').isValid;

function hasColorscale(trace, containerStr, colorKey) {
    var container = containerStr ?
        Lib.nestedProperty(trace, containerStr).get() || {} :
        trace;

    var color = container[colorKey || 'color'];
    if(color && color._inputArray) color = color._inputArray;

    var isArrayWithOneNumber = false;
    if(Lib.isArrayOrTypedArray(color)) {
        for(var i = 0; i < color.length; i++) {
            if(isNumeric(color[i])) {
                isArrayWithOneNumber = true;
                break;
            }
        }
    }

    return (
        Lib.isPlainObject(container) && (
            isArrayWithOneNumber ||
            container.showscale === true ||
            (isNumeric(container.cmin) && isNumeric(container.cmax)) ||
            isValidScale(container.colorscale) ||
            Lib.isPlainObject(container.colorbar)
        )
    );
}

var constantAttrs = ['showscale', 'autocolorscale', 'colorscale', 'reversescale', 'colorbar'];
var letterAttrs = ['min', 'max', 'mid', 'auto'];