Function calc

src/traces/barpolar/calc.js:12–67

(gd, trace)

var extendFlat = require('../../lib').extendFlat;

function calc(gd, trace) {
    var fullLayout = gd._fullLayout;
    var subplotId = trace.subplot;
    var radialAxis = fullLayout[subplotId].radialaxis;
    var angularAxis = fullLayout[subplotId].angularaxis;
    var rArray = radialAxis.makeCalcdata(trace, 'r');
    var thetaArray = angularAxis.makeCalcdata(trace, 'theta');
    var len = trace._length;
    var cd = new Array(len);

    // 'size' axis variables
    var sArray = rArray;
    // 'pos' axis variables
    var pArray = thetaArray;

    for(var i = 0; i < len; i++) {
        cd[i] = {p: pArray[i], s: sArray[i]};
    }

    // convert width and offset in 'c' coordinate,
    // set 'c' value(s) in trace._width and trace._offset,
    // to make Bar.crossTraceCalc "just work"
    function d2c(attr) {
        var val = trace[attr];
        if(val !== undefined) {
            trace['_' + attr] = isArrayOrTypedArray(val) ?
                angularAxis.makeCalcdata(trace, attr) :
                angularAxis.d2c(val, trace.thetaunit);
        }
    }

    if(angularAxis.type === 'linear') {
        d2c('width');
        d2c('offset');
    }

    if(hasColorscale(trace, 'marker')) {
        colorscaleCalc(gd, trace, {
            vals: trace.marker.color,
            containerStr: 'marker',
            cLetter: 'c'
        });
    }
    if(hasColorscale(trace, 'marker.line')) {
        colorscaleCalc(gd, trace, {
            vals: trace.marker.line.color,
            containerStr: 'marker.line',
            cLetter: 'c'
        });
    }

    arraysToCalcdata(cd, trace);
    calcSelection(cd, trace);

    return cd;
}

function crossTraceCalc(gd, polarLayout, subplotId) {