Order of curves in pdf or svg

[Tom_P]

Dear Mc Neel - or maybe someone of the more advandced users.
I tryed to figure out, if i can influence the order Curves written to a svg or a pdf.
Any latest information about this ?

There is already other topics about this/similar questions:
(1)

Printing draw order inconsistent

Perfect! Thank you for the effort. https://mcneel.myjetbrains.com/youtrack/issue/RH-59300

https://mcneel.myjetbrains.com/youtrack/issue/RH-59300
(2)
and most close to my request:
https://mcneel.myjetbrains.com/youtrack/issue/RH-64173

Any chance to order (open) curves - draw order in a 2d export (pdf, svg) ?
How can i get feedback of the draworder,
for example some display-depth property in Properties ?
also some scriptable access would be fine.

looks like @wim and @stevebaer where mostly involved at the topics above.

by the way, it s a pity, that the simple pdf file IO in Rhino-Common does not support arcs / bezier / or even general drawCurves.

i am not in a hurry about this topic - you can also tell me to be patient.
kind regars -tom

[cdordoni]

Here’s a related thread from a few days ago:

Export objects in a particular order to SVG/DXF/PDF

Hello, I want to be able to export objects (formats of interest are SVG/DXF/PDF) but maintain their order in the exported file. I.e. if I draw objects in the sequence 1,2,3,4 then I want them exported to the file in the same sequence 1,2,3,4. Reason - one application is to export to SVG and then output to an AxiDraw pen plotter from within Inkscape. I’ve experimented with this in v7, but there does not appear to be any logic to the sequence in which Rhino processes objects for export. I would …

[stevebaer]

Layer order determines the order that curves are placed into PDFs and SVGs. You can override layer order with the BringToFront/SendToBack commands

[Tom_P]

Dear @stevebaer wow, thanks for the fast reply.
(1)
“Layer order” - does this mean the index of the layer ? or the current position in the layer palette ?
https://developer.rhino3d.com/api/RhinoCommon/html/P_Rhino_DocObjects_Layer_SortIndex.htm
(2)
if i have arround 900 to 1000 curves and i want to sort them by script - do you recommend to generat 1000 layers or just set
https://developer.rhino3d.com/api/RhinoCommon/html/P_Rhino_DocObjects_ObjectAttributes_DisplayOrder.htm

or shall i call bringToFront by script ?
(3)
if i copy paste stuff to a new document, and select curves by single click each. Will the paste - order by the order i selected the objects - or the same as in the old doc ?
thanks again - kind regards

[stevebaer]

If you’re scripting this, setting the display order value on the object attributes is probably the best way to go.

[pascal (Pascal Golay)]

@Tom_P - see
https://developer.rhino3d.com/wip/api/RhinoCommon/html/P_Rhino_DocObjects_ObjectAttributes_DisplayOrder.htm

-Pascal

[Tom_P]

ok - great - thanks.
just if others come by to this topic - there is a nice example to get started

Display Order

one think i am still missing:
is there something like lowest / highest DisplayOrder to directly query ?
Where does “bringToFront” get the highest Number from ? to i have to scan all objects in the document ? or is this query already implemented somewher in rhino-common.
(can t find it)

thanks

[stevebaer]

The BringToFront and SendToBack commands iterate through all of the objects to find highest/lowest display order numbers.

[Tom_P]

dear @stevebaer
thanks a lot - i ll try to figure out how to get everything i need. …
current Idea is a simple clickorder = DisplayOrder. But i will also need some kind of Display-Order-Aware Copy … and as the data is going to a laser-cutter - similar to @cdordoni question i also have to think about adjusting curve direction and curve seam… let s see how much time i’ll find.
kind regards -tom