Color internodes

[Raphalex46]

An internode is the portion of the skeleton which is between two organs -optional activation via another icon (topleft corner) -same options of color choice than other 3D elements, especially organs

BetterPlantVis

[Raphalex46]

That seems fairly doable, this picture is very useful, thank you.

[Raphalex46]

After looking at the structure of fruit points and the skeleton, it's a lot harder than it looks.

There are multiple approaches for this problem, here are the ones I thought about :

• Consider only the vertical axis: since plants usually go up, consider only the vertical axis to see which points of the skeleton are between 2 nodes. This solution is not robust since some plants might have organs that go sideways or something.

• Check equality between skeleton and fruit points: From what I tested, skeletons and fruit points can "collide", that means that if the skeleton points are ordered in the direction of the plant, we can start coloring the skeleton when we encounter a node, and stop when we encounter the next node. This is a good and robust solution, but no luck: the skeleton points aren't ordered correctly:

  In this image, skeleton sections are colored according to their index in the array they are stored in. Since the colors are jumping around a lot (like red next to blue and things like that), that means that the index number doesn't have anything to do with the position of the section on the skeleton.

• Compute the equation of a line between 2 nodes, and color every skeleton point that is near this line. This is quite a robust solution, except in the case where the skeleton does weird things and isn't very straight. This is also the heaviest solution. This unfortunately isn't possible either: Each fruit is made of multiple points (not always the same number, from what I've seen, it goes from 3 to 20 points usually). In order to draw the fruits, lines are drawn between the points. However, the points don't seem to be organized :

  In this image, the last line (which links the last 2 points of each fruit) is drawn in red. As you can see, for one fruit, it's near the extremity, and for the other it's near the node.