Function calcCornerRadius

src/traces/bar/plot.js:258–278

(crValue, crForm)

            // Calculate corner radius of bar in pixels
            function calcCornerRadius(crValue, crForm) {
                if (!crValue) return 0;

                var barWidth = isHorizontal ? Math.abs(y1 - y0) : Math.abs(x1 - x0);
                var barLength = isHorizontal ? Math.abs(x1 - x0) : Math.abs(y1 - y0);
                var stackedBarTotalLength = fixpx(Math.abs(c2p(outerBound, true) - c2p(0, true)));
                var maxRadius = di.hasB
                    ? Math.min(barWidth / 2, barLength / 2)
                    : Math.min(barWidth / 2, stackedBarTotalLength);
                var crPx;

                if (crForm === '%') {
                    // If radius is given as a % string, convert to number of pixels
                    var crPercent = Math.min(50, crValue);
                    crPx = barWidth * (crPercent / 100);
                } else {
                    // Otherwise, it's already a number of pixels, use the given value
                    crPx = crValue;
                }
                return fixpx(Math.max(Math.min(crPx, maxRadius), 0));
            }
            // Exclude anything which is not explicitly a bar or histogram chart from rounding
            var r = isBar || isHistogram ? calcCornerRadius(t.cornerradiusvalue, t.cornerradiusform) : 0;
            // Construct path string for bar