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Refactoring
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ilgizar
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916539fad9
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8152b9d6fe
@ -6,118 +6,131 @@ import _ from 'lodash';
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* @param align Y level
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*/
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export function alignYLevel(yaxis, alignLevel) {
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var minLeft = yaxis[0].min;
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var maxLeft = yaxis[0].max;
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var minRight = yaxis[1].min;
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var maxRight = yaxis[1].max;
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moveLevelToZero(yaxis, alignLevel);
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if (alignLevel !== 0) {
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minLeft -= alignLevel;
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maxLeft -= alignLevel;
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minRight -= alignLevel;
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maxRight -= alignLevel;
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}
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// wide Y min and max using increased wideFactor
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var deltaLeft = maxLeft - minLeft;
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var deltaRight = maxRight - minRight;
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var wideFactor = 0.25;
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if (deltaLeft === 0) {
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minLeft -= wideFactor;
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maxLeft += wideFactor;
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}
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if (deltaRight === 0) {
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minRight -= wideFactor;
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maxRight += wideFactor;
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}
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expandStuckValues(yaxis);
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// one of graphs on zero
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var zero = minLeft === 0 || minRight === 0 || maxLeft === 0 || maxRight === 0;
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var zero = yaxis[0].min === 0 || yaxis[1].min === 0 || yaxis[0].max === 0 || yaxis[1].max === 0;
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// on the one hand with respect to zero
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var oneSide = (minLeft >= 0 && minRight >= 0) || (maxLeft <= 0 && maxRight <= 0);
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var oneSide = checkOneSide(yaxis);
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if (zero && oneSide) {
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minLeft = maxLeft > 0 ? 0 : minLeft;
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maxLeft = maxLeft > 0 ? maxLeft : 0;
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minRight = maxRight > 0 ? 0 : minRight;
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maxRight = maxRight > 0 ? maxRight : 0;
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yaxis[0].min = yaxis[0].max > 0 ? 0 : yaxis[0].min;
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yaxis[0].max = yaxis[0].max > 0 ? yaxis[0].max : 0;
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yaxis[1].min = yaxis[1].max > 0 ? 0 : yaxis[1].min;
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yaxis[1].max = yaxis[1].max > 0 ? yaxis[1].max : 0;
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} else {
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// on the opposite sides with respect to zero
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if ((minLeft >= 0 && maxRight <= 0) || (maxLeft <= 0 && minRight >= 0)) {
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if (minLeft >= 0) {
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minLeft = -maxLeft;
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maxRight = -minRight;
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if ((yaxis[0].min >= 0 && yaxis[1].max <= 0) || (yaxis[0].max <= 0 && yaxis[1].min >= 0)) {
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if (yaxis[0].min >= 0) {
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yaxis[0].min = -yaxis[0].max;
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yaxis[1].max = -yaxis[1].min;
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} else {
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maxLeft = -minLeft;
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minRight = -maxRight;
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yaxis[0].max = -yaxis[0].min;
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yaxis[1].min = -yaxis[1].max;
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}
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} else {
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// both across zero
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var twoCross = minLeft <= 0 && maxLeft >= 0 && minRight <= 0 && maxRight >= 0;
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var rateLeft, rateRight, rate;
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if (twoCross) {
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rateLeft = minRight ? minLeft / minRight : 0;
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rateRight = maxRight ? maxLeft / maxRight : 0;
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} else {
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if (oneSide) {
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var absLeftMin = Math.abs(minLeft);
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var absLeftMax = Math.abs(maxLeft);
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var absRightMin = Math.abs(minRight);
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var absRightMax = Math.abs(maxRight);
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var upLeft = _.max([absLeftMin, absLeftMax]);
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var downLeft = _.min([absLeftMin, absLeftMax]);
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var upRight = _.max([absRightMin, absRightMax]);
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var downRight = _.min([absRightMin, absRightMax]);
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rateLeft = downLeft ? upLeft / downLeft : upLeft;
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rateRight = downRight ? upRight / downRight : upRight;
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} else {
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if (minLeft > 0 || minRight > 0) {
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rateLeft = maxLeft / maxRight;
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rateRight = 0;
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} else {
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rateLeft = 0;
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rateRight = minLeft / minRight;
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}
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}
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}
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rate = rateLeft > rateRight ? rateLeft : rateRight;
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var rate = getRate(yaxis);
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if (oneSide) {
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if (minLeft > 0) {
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minLeft = maxLeft / rate;
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minRight = maxRight / rate;
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if (yaxis[0].min > 0) {
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yaxis[0].min = yaxis[0].max / rate;
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yaxis[1].min = yaxis[1].max / rate;
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} else {
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maxLeft = minLeft / rate;
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maxRight = minRight / rate;
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yaxis[0].max = yaxis[0].min / rate;
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yaxis[1].max = yaxis[1].min / rate;
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}
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} else {
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if (twoCross) {
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minLeft = minRight ? minRight * rate : minLeft;
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minRight = minLeft ? minLeft / rate : minRight;
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maxLeft = maxRight ? maxRight * rate : maxLeft;
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maxRight = maxLeft ? maxLeft / rate : maxRight;
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if (checkTwoCross(yaxis)) {
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yaxis[0].min = yaxis[1].min ? yaxis[1].min * rate : yaxis[0].min;
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yaxis[1].min = yaxis[0].min ? yaxis[0].min / rate : yaxis[1].min;
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yaxis[0].max = yaxis[1].max ? yaxis[1].max * rate : yaxis[0].max;
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yaxis[1].max = yaxis[0].max ? yaxis[0].max / rate : yaxis[1].max;
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} else {
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minLeft = minLeft > 0 ? minRight * rate : minLeft;
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minRight = minRight > 0 ? minLeft / rate : minRight;
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maxLeft = maxLeft < 0 ? maxRight * rate : maxLeft;
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maxRight = maxRight < 0 ? maxLeft / rate : maxRight;
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yaxis[0].min = yaxis[0].min > 0 ? yaxis[1].min * rate : yaxis[0].min;
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yaxis[1].min = yaxis[1].min > 0 ? yaxis[0].min / rate : yaxis[1].min;
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yaxis[0].max = yaxis[0].max < 0 ? yaxis[1].max * rate : yaxis[0].max;
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yaxis[1].max = yaxis[1].max < 0 ? yaxis[0].max / rate : yaxis[1].max;
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}
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}
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}
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}
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restoreLevelFromZero(yaxis, alignLevel);
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}
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function expandStuckValues(yaxis) {
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// wide Y min and max using increased wideFactor
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var wideFactor = 0.25;
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if (yaxis[0].max === yaxis[0].min) {
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yaxis[0].min -= wideFactor;
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yaxis[0].max += wideFactor;
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}
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if (yaxis[1].max === yaxis[1].min) {
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yaxis[1].min -= wideFactor;
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yaxis[1].max += wideFactor;
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}
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}
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function moveLevelToZero(yaxis, alignLevel) {
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if (alignLevel !== 0) {
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minLeft += alignLevel;
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maxLeft += alignLevel;
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minRight += alignLevel;
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maxRight += alignLevel;
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yaxis[0].min -= alignLevel;
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yaxis[0].max -= alignLevel;
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yaxis[1].min -= alignLevel;
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yaxis[1].max -= alignLevel;
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}
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}
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function restoreLevelFromZero(yaxis, alignLevel) {
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if (alignLevel !== 0) {
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yaxis[0].min += alignLevel;
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yaxis[0].max += alignLevel;
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yaxis[1].min += alignLevel;
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yaxis[1].max += alignLevel;
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}
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}
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function checkOneSide(yaxis) {
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// on the one hand with respect to zero
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return (yaxis[0].min >= 0 && yaxis[1].min >= 0) || (yaxis[0].max <= 0 && yaxis[1].max <= 0);
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}
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function checkTwoCross(yaxis) {
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// both across zero
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return yaxis[0].min <= 0 && yaxis[0].max >= 0 && yaxis[1].min <= 0 && yaxis[1].max >= 0;
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}
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function getRate(yaxis) {
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var rateLeft, rateRight, rate;
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if (checkTwoCross(yaxis)) {
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rateLeft = yaxis[1].min ? yaxis[0].min / yaxis[1].min : 0;
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rateRight = yaxis[1].max ? yaxis[0].max / yaxis[1].max : 0;
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} else {
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if (checkOneSide(yaxis)) {
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var absLeftMin = Math.abs(yaxis[0].min);
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var absLeftMax = Math.abs(yaxis[0].max);
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var absRightMin = Math.abs(yaxis[1].min);
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var absRightMax = Math.abs(yaxis[1].max);
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var upLeft = _.max([absLeftMin, absLeftMax]);
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var downLeft = _.min([absLeftMin, absLeftMax]);
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var upRight = _.max([absRightMin, absRightMax]);
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var downRight = _.min([absRightMin, absRightMax]);
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rateLeft = downLeft ? upLeft / downLeft : upLeft;
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rateRight = downRight ? upRight / downRight : upRight;
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} else {
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if (yaxis[0].min > 0 || yaxis[1].min > 0) {
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rateLeft = yaxis[0].max / yaxis[1].max;
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rateRight = 0;
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} else {
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rateLeft = 0;
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rateRight = yaxis[0].min / yaxis[1].min;
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}
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}
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}
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yaxis[0].min = minLeft;
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yaxis[0].max = maxLeft;
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yaxis[1].min = minRight;
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yaxis[1].max = maxRight;
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rate = rateLeft > rateRight ? rateLeft : rateRight;
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return rate;
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}
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