private renderLabels()

in src/TornadoChart.ts [1001:1055]
44 lines of code
3 McCabe index (conditional complexity)

    private renderLabels(dataPoints: TornadoChartPoint[], labelsSettings: VisualDataLabelsSettings): void {
        let labelSelectionMerged: Selection<TornadoChartPoint>,
            labelSelection: Selection<TornadoChartPoint> = this.main
                .select(TornadoChart.Labels.selectorName)
                .selectAll(TornadoChart.Label.selectorName)
                .data(dataPoints.filter((p: TornadoChartPoint) => p.label.dx >= 0));

        // Check if labels can be displayed
        if (!labelsSettings.show || this.dataView.labelHeight >= this.heightColumn) {
            this.labels.selectAll("*").remove();
            return;
        }

        let fontSizeInPx: string = PixelConverter.fromPoint(labelsSettings.fontSize);
        let labelYOffset: number = this.heightColumn / 2 + this.dataView.labelHeight / 2 - this.InnerTextHeightDelta;
        let categoriesLength: number = this.dataView.categories.length;

        labelSelectionMerged = labelSelection
            .enter()
            .append("g")
            .merge(labelSelection);

        labelSelectionMerged
            .append("svg:title")
            .classed(TornadoChart.LabelTitle.className, true);

        labelSelectionMerged
            .append("svg:text")
            .attr("dy", dataLabelUtils.DefaultDy)
            .classed(TornadoChart.LabelText.className, true);

        labelSelectionMerged
            .attr("pointer-events", "none")
            .classed(TornadoChart.Label.className, true);

        labelSelectionMerged
            .select(TornadoChart.LabelTitle.selectorName)
            .text((p: TornadoChartPoint) => p.label.source);

        labelSelectionMerged
            .attr("transform", (p: TornadoChartPoint, index: number) => {
                let dy: number = (this.heightColumn + this.columnPadding) * (index % categoriesLength);
                return translate(p.label.dx, dy + labelYOffset);
            });

        labelSelectionMerged
            .select(TornadoChart.LabelText.selectorName)
            .attr("fill", (p: TornadoChartPoint) => p.label.color)
            .attr("font-size", fontSizeInPx)
            .text((p: TornadoChartPoint) => p.label.value);

        labelSelection
            .exit()
            .remove();
    }