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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2022/02/22 03:22:59 UTC
[GitHub] [echarts] nikolay-alemasov opened a new issue #16555: [Feature] Phylogenetic tree
nikolay-alemasov opened a new issue #16555:
URL: https://github.com/apache/echarts/issues/16555
### What problem does this feature solve?
Tree charts now cannot have a distance information for the particular edge. To draw not usual but [phylogenetic tree](https://en.wikipedia.org/wiki/Phylogenetic_tree) such an information is used to depict distance between different sequences of the same gene in different organisms. Ideally such a tree should also be able to be constructed from a file in [Newick format](https://en.wikipedia.org/wiki/Newick_format).
### What does the proposed API look like?
```
myChart.showLoading();
$.get(ROOT_PATH + '/data/asset/data/phylogenetic-tree.nwk', function (data) {
myChart.hideLoading();
myChart.setOption(
(option = {
tooltip: {
trigger: 'item',
triggerOn: 'mousemove'
},
series: [
{
type: 'tree',
data: [data],
left: '2%',
right: '2%',
top: '8%',
bottom: '20%',
symbol: 'emptyCircle',
orient: 'vertical',
expandAndCollapse: true,
label: {
position: 'top',
rotate: -90,
verticalAlign: 'middle',
align: 'right',
fontSize: 9
},
leaves: {
label: {
position: 'bottom',
rotate: -90,
verticalAlign: 'middle',
align: 'left'
}
},
animationDurationUpdate: 750
}
]
})
);
});
```
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[GitHub] [echarts] Ovilia commented on issue #16555: [Feature] Phylogenetic tree
Posted by GitBox <gi...@apache.org>.
Ovilia commented on issue #16555:
URL: https://github.com/apache/echarts/issues/16555#issuecomment-1048586416
Hi, I see that there are many designs in [Phylogenetic_tree](https://en.wikipedia.org/wiki/Phylogenetic_tree). Which one is required? Like this one?
Would [graph series](https://echarts.apache.org/examples/en/editor.html?c=graph) be useful in this case? But you have to provide the position of each node.
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[GitHub] [echarts] nikolay-alemasov commented on issue #16555: [Feature] Phylogenetic tree
Posted by GitBox <gi...@apache.org>.
nikolay-alemasov commented on issue #16555:
URL: https://github.com/apache/echarts/issues/16555#issuecomment-1048598729
The second point is to be able to load a tree from newick format.
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[GitHub] [echarts] nikolay-alemasov commented on issue #16555: [Feature] Phylogenetic tree
Posted by GitBox <gi...@apache.org>.
nikolay-alemasov commented on issue #16555:
URL: https://github.com/apache/echarts/issues/16555#issuecomment-1048596795
It could be like this:
At least usually people get used to see such design. But the design itself can be different. For instance:
Or like this:
The main idea not to have different layout but rather have additional information on distance of a node from each other. That is why different nodes placed at different distances from each other on such trees.
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