Clear parcoords canvas specially if no panels exist #1440
Conversation
…aw loop will not enter the loop body that also clears
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Great! Can you add a test case to 🔒 this down? |
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This fix would be nice addition to the next patch release |
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@etienne my conclusion from our chat is that we'll need to persist the regl object on the element; it'll make it possible to have access to it for testing. I can go ahead with it today. |
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@etpinard specifically, we already bind (with D3) the lineLayer object that has a readPixel method for picking - I'll just make a similar method for reading all pixels in a rectangle, so no need for the entire regl object. |
Sounds good. Thanks! |
Reason: if there's no panel, then the panel redaw loop will not enter the loop body that also clears the canvas, causing uncleared lines when only 0 or 1 dimension exists (as visible dimensions) after rendering, then making other dimensions go invisible with
Plotly.restyle.