centering text is slow

[TheCollector2K]

when text on the path is centered it is using this part of the code:
/* Center text according to the path's bounding box */ if (options.center) { var textLength = textNode.getComputedTextLength(); var pathLength = this._path.getTotalLength(); /* Set the position for the left side of the textNode */ textNode.setAttribute('dx', ((pathLength / 2) - (textLength / 2))); }

the getComputedTextLength() & getTotalLength() cause reflows in the browser and are very slow when a lot of text is added. I've tried replacing this and came up with adding these attributes to the path-element and remove the above code:

textPath.setAttribute('text-anchor', 'middle'); textPath.setAttribute('startOffset', '50%');

Maybe someone could check and (when it's ok) add it to the code.

[EliezerB123]

@TheCollector2K Have you found a workaround, in the meantime?

[samcrawford]

I have a similar issue with the 'repeat' option, which I see uses the same slow function calls. I can't see a way to remove these though. Any ideas? @TheCollector2K ?

[akamuza]

Same issue here. Long polylines are lagging heavily with markers on it.