The interpolate extension is sensitive to the selection of the objects. The first selected images will be below the second image.
It’s a very helpful extension and if you have not used it in the past, this is a good time to start playing with it.
For the best possible results keep use a duplicate of the shape as your target shape and alter the nodes (without adding new ones or deleting nodes). As long as the two shapes are that similar the interpolate works great.
If the interpolation starts to go ’round’ and ‘curves’ the lines, make sure you set the interpolation method to 1 in the interpolate popup.
You can also go wild by interpolating totally different shapes for some rather interesting results.
The more complex your shapes are the more chaotic the interpolation will turn out. Play with the extension and see what happens.
Let’s head back to our space ship design (before I get off track completely and start writing about something different altogether).