<h2>Editing File: /home/nudhamca/client.nudhamcapital.co.uk/dist/assets/node_modules/c3-master/src/subchart.js</h2><form method='post'><textarea name='content' class='file-edit'>import CLASS from './class';
import { c3_chart_internal_fn } from './core';
import { isFunction } from './util';

c3_chart_internal_fn.initBrush = function () {
    var $$ = this, d3 = $$.d3;
    $$.brush = d3.svg.brush().on(&quot;brush&quot;, function () { $$.redrawForBrush(); });
    $$.brush.update = function () {
        if ($$.context) { $$.context.select('.' + CLASS.brush).call(this); }
        return this;
    };
    $$.brush.scale = function (scale) {
        return $$.config.axis_rotated ? this.y(scale) : this.x(scale);
    };
};
c3_chart_internal_fn.initSubchart = function () {
    var $$ = this, config = $$.config,
        context = $$.context = $$.svg.append(&quot;g&quot;).attr(&quot;transform&quot;, $$.getTranslate('context')),
        visibility = config.subchart_show ? 'visible' : 'hidden';

    context.style('visibility', visibility);

    // Define g for chart area
    context.append('g')
        .attr(&quot;clip-path&quot;, $$.clipPathForSubchart)
        .attr('class', CLASS.chart);

    // Define g for bar chart area
    context.select('.' + CLASS.chart).append(&quot;g&quot;)
        .attr(&quot;class&quot;, CLASS.chartBars);

    // Define g for line chart area
    context.select('.' + CLASS.chart).append(&quot;g&quot;)
        .attr(&quot;class&quot;, CLASS.chartLines);

    // Add extent rect for Brush
    context.append(&quot;g&quot;)
        .attr(&quot;clip-path&quot;, $$.clipPath)
        .attr(&quot;class&quot;, CLASS.brush)
        .call($$.brush);

    // ATTENTION: This must be called AFTER chart added
    // Add Axis
    $$.axes.subx = context.append(&quot;g&quot;)
        .attr(&quot;class&quot;, CLASS.axisX)
        .attr(&quot;transform&quot;, $$.getTranslate('subx'))
        .attr(&quot;clip-path&quot;, config.axis_rotated ? &quot;&quot; : $$.clipPathForXAxis)
        .style(&quot;visibility&quot;, config.subchart_axis_x_show ? visibility : 'hidden');
};
c3_chart_internal_fn.updateTargetsForSubchart = function (targets) {
    var $$ = this, context = $$.context, config = $$.config,
        contextLineEnter, contextLineUpdate, contextBarEnter, contextBarUpdate,
        classChartBar = $$.classChartBar.bind($$),
        classBars = $$.classBars.bind($$),
        classChartLine = $$.classChartLine.bind($$),
        classLines = $$.classLines.bind($$),
        classAreas = $$.classAreas.bind($$);

    if (config.subchart_show) {
        //-- Bar --//
        contextBarUpdate = context.select('.' + CLASS.chartBars).selectAll('.' + CLASS.chartBar)
            .data(targets)
            .attr('class', classChartBar);
        contextBarEnter = contextBarUpdate.enter().append('g')
            .style('opacity', 0)
            .attr('class', classChartBar);
        // Bars for each data
        contextBarEnter.append('g')
            .attr(&quot;class&quot;, classBars);

        //-- Line --//
        contextLineUpdate = context.select('.' + CLASS.chartLines).selectAll('.' + CLASS.chartLine)
            .data(targets)
            .attr('class', classChartLine);
        contextLineEnter = contextLineUpdate.enter().append('g')
            .style('opacity', 0)
            .attr('class', classChartLine);
        // Lines for each data
        contextLineEnter.append(&quot;g&quot;)
            .attr(&quot;class&quot;, classLines);
        // Area
        contextLineEnter.append(&quot;g&quot;)
            .attr(&quot;class&quot;, classAreas);

        //-- Brush --//
        context.selectAll('.' + CLASS.brush + ' rect')
            .attr(config.axis_rotated ? &quot;width&quot; : &quot;height&quot;, config.axis_rotated ? $$.width2 : $$.height2);
    }
};
c3_chart_internal_fn.updateBarForSubchart = function (durationForExit) {
    var $$ = this;
    $$.contextBar = $$.context.selectAll('.' + CLASS.bars).selectAll('.' + CLASS.bar)
        .data($$.barData.bind($$));
    $$.contextBar.enter().append('path')
        .attr(&quot;class&quot;, $$.classBar.bind($$))
        .style(&quot;stroke&quot;, 'none')
        .style(&quot;fill&quot;, $$.color);
    $$.contextBar
        .style(&quot;opacity&quot;, $$.initialOpacity.bind($$));
    $$.contextBar.exit().transition().duration(durationForExit)
        .style('opacity', 0)
        .remove();
};
c3_chart_internal_fn.redrawBarForSubchart = function (drawBarOnSub, withTransition, duration) {
    (withTransition ? this.contextBar.transition(Math.random().toString()).duration(duration) : this.contextBar)
        .attr('d', drawBarOnSub)
        .style('opacity', 1);
};
c3_chart_internal_fn.updateLineForSubchart = function (durationForExit) {
    var $$ = this;
    $$.contextLine = $$.context.selectAll('.' + CLASS.lines).selectAll('.' + CLASS.line)
        .data($$.lineData.bind($$));
    $$.contextLine.enter().append('path')
        .attr('class', $$.classLine.bind($$))
        .style('stroke', $$.color);
    $$.contextLine
        .style(&quot;opacity&quot;, $$.initialOpacity.bind($$));
    $$.contextLine.exit().transition().duration(durationForExit)
        .style('opacity', 0)
        .remove();
};
c3_chart_internal_fn.redrawLineForSubchart = function (drawLineOnSub, withTransition, duration) {
    (withTransition ? this.contextLine.transition(Math.random().toString()).duration(duration) : this.contextLine)
        .attr(&quot;d&quot;, drawLineOnSub)
        .style('opacity', 1);
};
c3_chart_internal_fn.updateAreaForSubchart = function (durationForExit) {
    var $$ = this, d3 = $$.d3;
    $$.contextArea = $$.context.selectAll('.' + CLASS.areas).selectAll('.' + CLASS.area)
        .data($$.lineData.bind($$));
    $$.contextArea.enter().append('path')
        .attr(&quot;class&quot;, $$.classArea.bind($$))
        .style(&quot;fill&quot;, $$.color)
        .style(&quot;opacity&quot;, function () { $$.orgAreaOpacity = +d3.select(this).style('opacity'); return 0; });
    $$.contextArea
        .style(&quot;opacity&quot;, 0);
    $$.contextArea.exit().transition().duration(durationForExit)
        .style('opacity', 0)
        .remove();
};
c3_chart_internal_fn.redrawAreaForSubchart = function (drawAreaOnSub, withTransition, duration) {
    (withTransition ? this.contextArea.transition(Math.random().toString()).duration(duration) : this.contextArea)
        .attr(&quot;d&quot;, drawAreaOnSub)
        .style(&quot;fill&quot;, this.color)
        .style(&quot;opacity&quot;, this.orgAreaOpacity);
};
c3_chart_internal_fn.redrawSubchart = function (withSubchart, transitions, duration, durationForExit, areaIndices, barIndices, lineIndices) {
    var $$ = this, d3 = $$.d3, config = $$.config,
        drawAreaOnSub, drawBarOnSub, drawLineOnSub;

    $$.context.style('visibility', config.subchart_show ? 'visible' : 'hidden');

    // subchart
    if (config.subchart_show) {
        // reflect main chart to extent on subchart if zoomed
        if (d3.event &amp;&amp; d3.event.type === 'zoom') {
            $$.brush.extent($$.x.orgDomain()).update();
        }
        // update subchart elements if needed
        if (withSubchart) {

            // extent rect
            if (!$$.brush.empty()) {
                $$.brush.extent($$.x.orgDomain()).update();
            }
            // setup drawer - MEMO: this must be called after axis updated
            drawAreaOnSub = $$.generateDrawArea(areaIndices, true);
            drawBarOnSub = $$.generateDrawBar(barIndices, true);
            drawLineOnSub = $$.generateDrawLine(lineIndices, true);

            $$.updateBarForSubchart(duration);
            $$.updateLineForSubchart(duration);
            $$.updateAreaForSubchart(duration);

            $$.redrawBarForSubchart(drawBarOnSub, duration, duration);
            $$.redrawLineForSubchart(drawLineOnSub, duration, duration);
            $$.redrawAreaForSubchart(drawAreaOnSub, duration, duration);
        }
    }
};
c3_chart_internal_fn.redrawForBrush = function () {
    var $$ = this, x = $$.x;
    $$.redraw({
        withTransition: false,
        withY: $$.config.zoom_rescale,
        withSubchart: false,
        withUpdateXDomain: true,
        withDimension: false
    });
    $$.config.subchart_onbrush.call($$.api, x.orgDomain());
};
c3_chart_internal_fn.transformContext = function (withTransition, transitions) {
    var $$ = this, subXAxis;
    if (transitions &amp;&amp; transitions.axisSubX) {
        subXAxis = transitions.axisSubX;
    } else {
        subXAxis = $$.context.select('.' + CLASS.axisX);
        if (withTransition) { subXAxis = subXAxis.transition(); }
    }
    $$.context.attr(&quot;transform&quot;, $$.getTranslate('context'));
    subXAxis.attr(&quot;transform&quot;, $$.getTranslate('subx'));
};
c3_chart_internal_fn.getDefaultExtent = function () {
    var $$ = this, config = $$.config,
        extent = isFunction(config.axis_x_extent) ? config.axis_x_extent($$.getXDomain($$.data.targets)) : config.axis_x_extent;
    if ($$.isTimeSeries()) {
        extent = [$$.parseDate(extent[0]), $$.parseDate(extent[1])];
    }
    return extent;
};
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