I’m struggling to understand the “natural” draw order that rhino uses when printing to PDF as vector.
Is there some sort of primer on how Rhino groks all this, before one goes about and manually adjusts draw order?
I’ve been able to glean some information that it is related to layer order, and layer hierarchy, just as in photoshop or illustrator, etc.
I think the biggest thing is that the model space, and even on as shown in a layout, don’t operate by the same principles as the PDF printer. So what you see, is not what you get.
It seems like it tends to go down the list and put lower layers behind higher layers.
Nested layers tend to follow the same hierarchy. Objects in the “parent” layer of several sublayers don’t seem to situated in the stack relative to sub-layers with any consistency however.
Curves seem to get drawn above hatches however, also inconsistently.
Z height seems to not matter when printing, but it does matter for model space.
There seems to be some sort of preferential treatment for the creation order of objects, but there’s no way I can figure that out.
It also seems clear that locked layers are always sent to the back, and then drawn in order of layer structure.
If the system is just way it’s going to be, and can’t be made more predictable, can the logic behind the system at least be explained somewhere?