Problems with addTraces and scattergl

[cpsievert]

http://codepen.io/cpsievert/pen/LRamoV/

This pen actually crashed my browser, but I've also seen this error trying to do a similar thing with version 1.18.1

WebGL: INVALID_OPERATION: drawArrays: no buffer is bound to enabled attribute

[etpinard]

another potential issue for @dfcreative

[dy]

Ok

[dy]

Hm.

let data = [{x:[...], y:[...]}];
Plotly.plot(container, data);
Plotly.addTraces(container, data); //← we pass already existing data

What is expected behaviour when we try to add existing data? Should we ignore it or copy it to new trace @etpinard? I guess cloning is reasonable if user can update data later.

[dy]

#1136 should help with that.

[etpinard]

Oh. Actually, this has nothing to do with the gl2d code - as @dfcreative points out in #1136.

More generally, @cpsievert, what do you expect to happen here? In your codepen, you're calling addTraces with the same trace object as in your first plot call. Should addTraces add a second (identical) trace to the graph? Or should addTraces look up its uid to figure out that the user wants to update the existing trace instead?

[cpsievert]

Should addTraces add a second (identical) trace to the graph?

yea, that's what I would want/expect

[etpinard]

thanks @cpsievert 🍻