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Posted to commits@echarts.apache.org by "helgasoft (via GitHub)" <gi...@apache.org> on 2026/02/16 21:45:24 UTC
[I] violin chart - contours do not include negative values [echarts-custom-series]
helgasoft opened a new issue, #21:
URL: https://github.com/apache/echarts-custom-series/issues/21
contours do not include negative values - [Demo](https://echarts.apache.org/examples/en/editor.html?code=lVXNjuM2DL7nKdQcJlai-GfaaQE73sF2BwUG6GIHSIE9BD4othJr4EiGJU-SZv3upSTbyewWBZpDZJE0-ZH8SAcBKrWuVRwEDT36e67Ldtsq1uRSaCa0n8tDQGualyxgeUkbrZZ5q7Q8LMGIMxU0bKeCktFCBQfKRfBe-8ZlBcKCK90_-7TV0j_Aw6ua6JIr38k_2ffW9rVnoTStKtaku1bkmkvh4csUYCGlG57raTLIkfAEvjRMt41An6kufbpVIFql0aP_28Pci5ZiLnAcdm-0QfrqTxOGL0bG00uX8J0n2qpKU5MwJH7SPSqFLz-I0k1G-I-WyU42nvFIQVdQTSELXrA_mdjrksg0TOSKJouFdHGrlPlvtGqZFxKJExeeb6rs7s4zR3rZ8UbpJ-uoYKdYEuM03mQdJsbAxvDrVpXe4CkCT7jrWAWV-jeE2ueaHV7ouZK08NX5sJXVmv_NEgOoIYq0pLjCwiQfLxEmb3DJpWwKb1OQPMNkBxFu_W2pKL7yQpfrnFaMlCng6l-ISJjhTZgtR0nYS_C8r_zuMYp3mNRQgyIj59RITV_qu7vaf1-K1PTJVRhursz4MpR_n3pNKohKI9KmtbUjY9uBLIOdTkPCoCts1fqVbVLCFgusF2njeWLZbliGA4WTnlw68Aa7ucLQg8P36QOHZSv0t29RGJKjYckJ3J9Wh-QEfo-uVSegZBh4h2WEMR4p85we_QOtPe8WqAu8EWQPN-g6JmvjdGv-Pt1OBlRp20P7EF0TFOkgXUaJ-ABYlkuBtw7H5n7-Zhqy3YgMTmLPKMuw5YIhz21utGH0C2wBrs_J2jm46HPN4mktq_NeiilRJYX7pZZcaBVvfVXxnHm4I0qfK1DseFXFQCeuWlp501
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Re: [I] violin chart - contours do not include negative values [echarts-custom-series]
Posted by "jacciz (via GitHub)" <gi...@apache.org>.
jacciz commented on issue #21:
URL: https://github.com/apache/echarts-custom-series/issues/21#issuecomment-3977400166
Developers - I believe the issue is that this line in violin.js has 10 as hard-coded:
`xRange.push(i * (10 / (binCount - 1)));`
Replacing that part of code with this worked for me:
```
var dataMin = Math.min.apply(null, violin.data);
var dataMax = Math.max.apply(null, violin.data);
var padding = (dataMax - dataMin) * 0.2 || 1; // 20% padding, fallback if flat
var rangeMin = dataMin - padding;
var rangeMax = dataMax + padding;
for (var i = 0; i < binCount; i++) {
xRange.push(rangeMin + i * ((rangeMax - rangeMin) / (binCount - 1)));
}
````
<img width="410" height="455" alt="Image" src="https://github.com/user-attachments/assets/98d66fc1-0ad8-40b7-a375-274eaec3c831" />
I'm using {echart4r} so am not too familiar with js code.
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