baseVal not supported

[nornagon]

I'm using path-data-polyfill, which uses baseVal to get x/y/width/height/etc. values from <rect>, <ellipse>, etc. elements. It would be great to implement this in svgdom!

[Fuzzyma]

Unfortunately that's not as easy as it sounds. You basically need to intercept all access to the node to return the correct attribute.
Feel free to open a PR to implement this feature!

[nornagon]

It looks like HTMLLinkElement exposes some direct properties, could baseVal be handled in a similar manner?

The properties for which baseVal works are quite limited and well-defined per element type, at least for shapes:

• rect - x, y, width, height, rx, ry
• circle - cx, cy, r
• ellipse - cx, cy, rx, ry
• path - none
• line - x1, y1, x2, y2
• polyline - none
• polygon - none

baseVal is useful for parsing SVG lengths, as in <rect width="10cm" height="10cm"/>. getAttribute works fine for the raw value but it would be great if svgdom could handle the lengths.

[Fuzzyma]

There is more. Everything in svg is animatable. Everything which is animatable has baseVal and animVal properties. For e.g. polygon you have points with a pointlist which of it also has x and y.
I think its not as easy as you think it is. But if you want enhance a special bit of svgdom you are welcome to do so. If you only need some properties, just add them :)