These extensions provide information on a path.

Adds CAD-style dimension arrows to an object.
In v0.47, this extension only works on paths;
in v0.48, it also works on *Shapes* and *Groups*.
It uses an object's *bounding box* to determine
placement of arrows. The arrows and original object are
placed inside a *Group*.

This extension draws the handle lines that one would see if editing the nodes of a path. It would be of more use if it included the drawing of the handle and node symbols.

*Updated in v0.48.*

This extension measures the length or area (added in v0.48) of a path, printing the length
or area alongside the path. A dialog allows many options to be set, including
*Measurement Type * (added in v0.48),
*Font size*,
*Offset* (the distance the text is moved away from the path),
*Precision* (number of decimal places shown),
*Scale Factor*, and
*Length Unit*.
In calculating the area, open paths are closed and area is added using
an even-odd fill rule. (The area of a donut is the area of the outer
circle minus the area of the inner circle if the inner sub-path is
in the opposite direction of the outer sub-path; otherwise it is the
sum of the two areas.)

This extension numbers the nodes of a path. It is useful for
creating an old-fashioned *Connect-the-Dots*
puzzle. (It is also an example of how to access the path data in
an *SVG* file for writing your own extension.) The original path
is turned into a path with no stroke but with dot markers. The
dots are then numbered.

The size of the numbers and the size of the dot markers can be specified.

^{[16] }
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