Librsvg2-bin

The package librsvg2-bin provides a viewer:
rsvg-view-3 [any_svg].svg

Selecting Object from underneath

Alt + mouse scroll to select objects from underneath
Alt + SHIFT + click to add to selection

Make sure that you click IN the object to select the object.
Make sure that the objects are not grouped.

Nodes in Inkscape

Nodes:
- Use TAB to go from one (selected) node to the next.
- Alt + ! is inversion

Types of nodes:
The types of nodes have a relation with how handles behave.

Handles:
- Shift + DRAG (I repeat drag from the node) the handle if it is not visible
or use CTRL click it.

Moving handles:
< and > makes the handles smaller or larger
[ and ] turns the handles<br>

Inkscape 3D boxes

1. X (red guides)
    Y (blue guides)
    Z (yellow guides)

2. De manier om de 3D box rond te bewegen is om de centrale node (met de X) te bewegen.

3. Shift X, Shift Y, Shift Z -> toggle the corresponding vanishing point from finite to infinite and back.

4. Als je de vanishing points naar infinite zet, dan kun je de vanishing points roteren. Je kunt dan een merry go round maken.
[] rotate X vanishing points directions
{} rotate Z vanishing point directions
() rotate Y vanishing point directions

5. Als je de vanishing points allemaal infinite maakt, dan kun je de perfecte kubus creëren.

The Book of Inkscape, pag. 172 en verder.