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Fixed misplaced data points on category scale

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* Fixed issue, that category scale shows data points misplaced. See #4060
* Cleaned code
* Fixed Irregular whitespace
* Fixed error in case value is undefined
* Verified that no error is thrown in case value === null
This commit is contained in:
Martin Zürn 2017-03-28 00:02:56 +02:00 committed by Evert Timberg
parent f3816b560c
commit 6f99157eb8
1 changed files with 8 additions and 1 deletions
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9
src/scales/scale.category.js
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@ -66,8 +66,15 @@ module.exports = function(Chart) {
// 1 is added because we need the length but we have the indexes
var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - ((me.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
if (value !== undefined && isNaN(index)) {
// If value is a data object, then index is the index in the data array,
// not the index of the scale. We need to change that.
var valueCategory;
if (value !== undefined && value !== null) {
valueCategory = me.isHorizontal() ? value.x : value.y;
}
if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
var labels = me.getLabels();
value = valueCategory || value;
var idx = labels.indexOf(value);
index = idx !== -1 ? idx : index;
}