The hatch by material thing is a clear case when the material is seen in an elevation. (Hopefully elevation hatches will be supported one day).
Regarding section hatches, there’s a case to consider: which hatch style (given by material) would a polysrf get that has multiple separate materials per face?
To answer my own question, I’d say the one directly assigned to the object.
Anyway: +1 for per-material-hatches!
I add my vote for this feature.
Being able to manage section style by material properties would speed up the process in case you have to build both rendering and drawings… So almost every time!
+1
Section style by material please 
I wish to have a library of materials: concrete, brick, timber etc.
When I cut them I want to see the hatch set by material.
So setting up a material in the material library should also have the option to assign a section style to the material.
Hi everyone, it would be great for me if the NestedClippingDrawing command had the AddBackground option like in the ClippingDrawings command. I would also like the background to have the same layer as the source object.
I’m curious, why would you not use ClippingDrawings in that case? You can always make a static copy out of it. Of course the second part of your request (put output in their source layer) is perhaps what drive your request?
Nonetheless, I added this to the list here…
yes you’re right, it can actually be done as you say, except that on an intuitive level the NestedClippingDrawings command seems useless to me without that option. For the second part of my request, I thank you for taking it into consideration. See you soon.
The NestedClippiingDrawings command is meant to extract sections only, and used mostly for laser cutting a 3d model
Is there a way of doing ‘kinky’ section? cant crack this
its a technique regularly used in architectural practise, sometimes the door opening is not on the same plane as windows, or stairs are on some other place and the section should cut through these,
the section lines on the image below should be the cutting place, not the planes, A join sections command option for sections would be useful, or a possibilty to make more control points to create a polyline like section line
is there a way of assigning a curve to a section maybe?
I could intersect extruded crv as section polysurface with the model, but thats kind of loosing the point of having those pretty sections coded within rhino
thx
Hi Matej -
We have that feature request on the list as RH-69117 Add jogged line clipping
Thanks,
-wim
Thank you for your answer Wim!
while working with the solution today I found out a bit of a problem for professional usage, In architecture there is a rule: when something is cut, only the parts that are touching air should be thick, everything inside the mass is supposed to be set as light thickness, the section drawings seems to be layer thickness oriented, therefore anything that is set within layer displays in the section, that is a problem, because an hardly readable sections for contractors or city offices are created
is there a way how to make the sections look as described above? (I did not find a way, of course its possible to edit manually afterwards, but that is not desired as it adds useless work),
the rule: anything that is touching air is thick, anything not touching air is thin,
it is not interchangeable and all is thick or all is thin, or some objects are thick and some objects (layers) are thin is not a working solution
example section of two cubes, one is ‘booleaned’ into the other
this is what I see now (an unreadable image for a contractor)>
this is what would be the right way of presentation (a comprehensive drawing)>
&
if I add one more cube in the group, section tools generates line that should not be there or should be in the hidden category (like in make2D), is there a way to make this happen today?
I think these two options would make the tool production ready for me, without it, it is a struggle… dont make me wrong, I am the most happy they were made, it just seems to be a bit too complicated (too simple) at this moment
thank you!
Mat
This is not implemented. What you are describing is to isolate the “silhouette” of the section curves and perhaps place at a different layer to be able to assign different thickness? Is this standard in architectural drafting?
I see it working correctly here, unless I’m missing something?
I created ClippingDrawings and set AddHidden=No:
thank you for the answer Rajaa
Yes, silhouette is appropriate word for this, look at the floorplan below, everything that is touching air is bold/ thick, everything within is thin (or with different property), to make things a bit more complex, also specific opening fills - for example doors or windows are not thick - they are thin so that we can read the documentation easily, therefore it would be also great to tell what is included within the thick section and what is not, but is still part of the section nonetheless (maybe within layer properties)
for the rest I have made an example file, screenshots here>
sections.3dm (121.6 KB)
there are two more things I am thinking of, while creating floor plans, there is the section height (lets say 1m) if there is a window at this height, the resulting section of the window is thin lines like on the image above, but if there is a window above section line (parapet height at 1.8m f.ex.), the resulting section is the same, it will be projected to the drawing as thin lines, it wont be culled, nor will it have different style (dash dot line f.ex.), so the section plane changes its position (this bound the the topic, @wim was talking about - RH-69117 Add jogged line clipping, but the jogged line should be 3 dimensional not 2D, I’d even say 4 dimensional as in one direction it should be able to change its position, one facade can have window at height of 1.8m, the oposite facade can have windows at lower height 0.2m, if the height of the window is 0.6m than, the section plane would have to be able to be at different positions at the same axis
the second thing is if there is a custom depth setting for the section plane there would be a great thing to have a possibility to set this not as number, but as range with negative value, this way it would be possible to draw stuff that is behind the section plane (or above it), this stuff would be in architectural drawings visualised as a dash dot line (everything that needs to be drawn but is ‘behind eyes’)
Are you requesting this so you can have varied print-width (thickness) of section output?
If so, I am working on adding a new option to set print-width by source here…
Thank you for your reply,
Yes that’s what I’m trying to achieve. But having it with sublayers would allow to assign different thicknesses according to detail specific layer option. That would help to manage the line thickness according to the detail drawing scale.
For example a wall sublayer could be 0.3 at 1/50 and 0.1 at 1/200.
Best regards
I see. On the flip side this will make the list of sections layers very big and harder to manage.
I think it worth continuing to consider a good solution to solve the issue you are presenting. Maybe allow scaling factor for printing?
Please try the fix in the next service release, and see if it helps.
Thanks again for your feedback.
Is it planned for future updates to be able to predefine the section styles, similar to a hatch etc., so that you can access them directly without having to define them again each time?
Yes. Slotted for the next version here…
Hi Rajaa,
Will that be v8.x or v9.x?
And will section styles also be integrated in the rhino tap within GH at anytime?
Thank you 
It is slated for the Rhino WIP (version 9)
@AndyPayne can you help?
