imageUri as property

[zoechi]

I think getImageUri() should be provided as property imageUri so it can be bound to.

[ebidel]

Feel free to PR

[zoechi]

Sorry, I'm not used to work with JS, I'm a Dart developer.
I guess this addition wouldn't be too hard by itself, but when I think about testing, ... I'm just not used to JS tool-chain.

[wesalvaro]

I don't think this should be a standard property as it takes time to compute the imageUri and I don't think it is useful to many people. Perhaps adding an attribute to enable the updating of such a property?

[wesalvaro]

I've created a PR to support this #87.

I measured the time taken for the charts in the demo page and all were very low (<10ms).

However, the charts on the demo page are small. Perhaps with larger charts, the time needed will be much greater... If someone wants to clone and try it out, please do. I don't plan to pursue it as I don't think it is particularly useful given the easy work-around.

[wesalvaro]

I'm going to close this since we couldn't get it working ideally.
It's possible to create the image as a computed value on chart.drawn as of #124
Without any other ideas, I think that's a good compromise.