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Posted to commits@echarts.apache.org by "dolphin666888 (via GitHub)" <gi...@apache.org> on 2023/05/02 01:56:46 UTC
[GitHub] [echarts] dolphin666888 opened a new issue, #18582: option for making ternary phase diagrams
dolphin666888 opened a new issue, #18582:
URL: https://github.com/apache/echarts/issues/18582
### What problem does this feature solve?
Ternary phase diagrams are standard for many scientific and engineering applications. However, this option is not available for Echarts. This feature is not available for other javascript plotting libraries either. So if this can be included in Echarts. It would make Echarts unique in this aspect.
### What does the proposed API look like?
provide a new chart type
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[GitHub] [echarts] dolphin666888 commented on issue #18582: option for making ternary phase diagrams
Posted by "dolphin666888 (via GitHub)" <gi...@apache.org>.
dolphin666888 commented on issue #18582:
URL: https://github.com/apache/echarts/issues/18582#issuecomment-1532496492
> D3 has [custom modules](https://github.com/davenquinn/d3-ternary#acknowledgments:~:text=Acknowledgments-,Several%20projects,-have%20served%20as) for ternary plots. [This one](https://observablehq.com/@toja/d3-ternary-plot) is simple enough to be built in ECharts. Elements are only lines and scatter - a good DIY project. But these charts could also become [very complex](https://www2.tulane.edu/~sanelson/eens212/ternaryphdiag.htm). It appears that each industry has its own criteria, making a universal chart impractical.
Thank you for the comment. I think that your suggestion is sufficient for me. Ternary plots are similar to XY plots. What I need is triangular coordinates with options for line types, point types, legends, axis labels and so on.
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[GitHub] [echarts] helgasoft commented on issue #18582: option for making ternary phase diagrams
Posted by "helgasoft (via GitHub)" <gi...@apache.org>.
helgasoft commented on issue #18582:
URL: https://github.com/apache/echarts/issues/18582#issuecomment-1551776365
It is doable in 3D - [proof of concept (POC)](https://helgasoft.github.io/echarty/extras.html#ternary)
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[GitHub] [echarts] dolphin666888 commented on issue #18582: option for making ternary phase diagrams
Posted by "dolphin666888 (via GitHub)" <gi...@apache.org>.
dolphin666888 commented on issue #18582:
URL: https://github.com/apache/echarts/issues/18582#issuecomment-1532684189
Sorry for making wrong comments. there are no axis labels for ternary plots, since all labels are located at the vertices. It would be great if the functionality offered by D3 is included in Echarts.
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[GitHub] [echarts] helgasoft commented on issue #18582: option for making ternary phase diagrams
Posted by "helgasoft (via GitHub)" <gi...@apache.org>.
helgasoft commented on issue #18582:
URL: https://github.com/apache/echarts/issues/18582#issuecomment-1532553867
The tough part is probably the 3 axes with labels.
Too bad [singleAxis](https://echarts.apache.org/en/option.html#singleAxis) cannot be rotated.
In d3 they do the triangle with [path](https://echarts.apache.org/en/option.html#series-custom.renderItem.return_path), but it could be done also with [polyline](https://echarts.apache.org/en/option.html#series-custom.renderItem.return_polyline.shape.points).
Good [example](https://echarts.apache.org/examples/en/editor.html?c=flame-graph) of custom series with text labels.
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[GitHub] [echarts] helgasoft commented on issue #18582: option for making ternary phase diagrams
Posted by "helgasoft (via GitHub)" <gi...@apache.org>.
helgasoft commented on issue #18582:
URL: https://github.com/apache/echarts/issues/18582#issuecomment-1532443804
D3 has [custom modules](https://github.com/davenquinn/d3-ternary#acknowledgments:~:text=Acknowledgments-,Several%20projects,-have%20served%20as) for ternary plots.
[This one](https://observablehq.com/@toja/d3-ternary-plot) is simple enough to be built in ECharts. Elements are only lines and scatter - a good DIY project.
But these charts could also become [very complex](https://www2.tulane.edu/~sanelson/eens212/ternaryphdiag.htm). It appears that each industry has its own criteria, making a universal chart impractical.
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Re: [I] option for making ternary phase diagrams [echarts]
Posted by "Lexachoc (via GitHub)" <gi...@apache.org>.
Lexachoc commented on issue #18582:
URL: https://github.com/apache/echarts/issues/18582#issuecomment-1919641406
I also wish there was a ternary rendering feature. The only reason I still use Plotly.js is because they have ternary rendering functionality! https://plotly.com/javascript/ternary-plots/
But I really like the style of Echart, the animations and the hover tooltips, so it bothers me because I don't want to use two libraries, Plotly for ternary plot and Echart for the rest. (Maybe one day I will have to do that ......).
In scientific visualization, e.g. for ceramic/glass/metal compositions, ternary diagrams are very important to show the distribution or formation.
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