Determining Width/Height of SVG from Text/Code

The code below is the SVG code for the letter G.

No, the code in your SVG is for a path. An SVG path is defined by the series of XY coordinate pairs for its nodes and handles, which is what you see in the code you pasted between the path tags (<path.../>).

There is nothing in that code which expressly "sets the width and height, or the relationship between the width and height" of the path. (Just as there is nothing in that code which defines the path as a "G".)

Trying to do a "bounding box calculation" based on the "largest and smallest values" of the coordinate pairs, as Mylenium proposes, would in no way ensure the bounds, since the curves in Bezier paths are interpolated between nodes. So such a calculation would be pointless unless the path happens to have nodes at the vertical and horizontal extremes and no handle coordinates are outside those positions.

Just do a web search for "SVG get bounds of a path" and start reading.

JET

A simple bounding box calculation of the largest and smallest values in the path would do, which are in your case derived in pixels based on the view box' default setting. Otherwise width and height have no intrinsic meaning - like in most vector formats. Without the view box information, your artwork could be any size.

Mylenium

You might want to ask this question in an SVG and coding related forum.