Forums >> Revit Structure >> Technical Support >> Problems with materials, lines and patterns of imported objects!

Jevgeni

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Hello everyone,

I know this is a common problem and usually I don't start a new thread if I can find an answer in existing ones, but I can't seem to figure this one out. I'm fairly new to Revit and for my current project I imported a model from SketchUp. What I want to do is to create views and crosssections of the model which would have certain linetypes and crosssection patterns. As far as I know the options for imported object are limited to being able to ajust the line and material settings per layer in Manage>Settings>Object Styles>Imported Objects.

The problem: When applying a new material to the imported model layers, the model seems to inherit only the color of the of the assigned material, but the linestyles and material patterns (surface and section) don't seem to work. When I apply the material to an indegenous object (say a block I create with the form command) it shows all the linestyles, patterns and colors just fine.

I tried numerous exports, differnt colors, layers, groups and components, flipped faces and different export formats. 

I tried to export the model as a DWG and then import it into Revit, which resulted into an improvement in line display: I could now successfully edit the line color and thickness of the imported objects, but still no pattern was displayed.

The project is pretty urgent and I'm kinda out of ideas of what else to try. SoI really hope that I missed something and that someone can help me out with this problem.

Kind regards,

Jevgeni

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WWHub

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Jevgeni

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According to the help file, generic models should be cuttable. And Revit does display the section (as apose to always showing the elevation view like non cuttable families do). I tried different cuttable families with no improved results. The problem is not that it doesn't show the cut section, it does. The problem is that it doesn't fill the section with the assigned hatches and doesn't use the desired lineweights for the object, as specified in the Object Styles for Imported Objects. Also, though not available for change, the 'When cut in Plan/RCP' option in Visibility/Graphic Overrides is checked for the object regardless of the (cuttable) family type it was imported in. I may have believed that the options for line styles and cut patterns were not available to imported objects, was it not for the fact that my DWG imports had working line style options when imported (yet no hatches).

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WWHub

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What Help file are you looking at?  See attached.

"...The problem is that it doesn't fill the section with the assigned hatches ..."  I don't know how you can assign a hatch to a cut import.  Can't be done.  You can assign render materials to the faces of imports.  If you want cut hatches, you have to add them.

"...  the 'When cut in Plan/RCP' option in Visibility/Graphic Overrides is checked for the object regardless of the (cuttable) family type it was imported in..."  Nope - Not true - See Second image.  This skp file is in a cuttable family and the box is not checked!  But that still doesn't mean it will cut correctly.  

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Jevgeni

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Yes I read that help file. And, as far as I understand it, for Generic Models it states the following "For other cuttable families, the option is never made available, but it is always selected.". My  'When cut in Plan/RCP' option is grayed out but checked.

See the attached image: what you're looking at there is a basic test block I imported from SketchUp and my Graphics/Visibility options options. The testmodel was imported into a 'Generic Model' family.

"I don't know how you can assign a hatch to a cut import.  Can't be done.  You can assign render materials to the faces of imports.  If you want cut hatches, you have to add them." - Didn't mean to speak in AutoCAD there, what I was trying to say is that I indeed did assign a material to the imported object and specified a surface and cut pattern (hatch) for that material. However neither the properties of the material or any line style settings are displayed in the section view. Only the color of the assigned material is projected onto the imported object in the 3D view.

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WWHub

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MY FAMILY IS NOT A GENERIC FAMILY - IT WAS CASEWORK because that is CUTTABLE.

You did not read that chart correctly.  See attached

Material assignments for imported objects are faces... not cut. If you want cut hatches, add 2D fills / linework and turn off import.....

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Jevgeni

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"MY FAMILY IS NOT A GENERIC FAMILY - IT WAS CASEWORK because that is CUTTABLE." - wow, I never said yours was generic. Mine is, since that is what I read to be one of the recommended family types for import. And I hate to say it but you have completely misread the help article. See attached image: BOTH generic AND casework are cuttable! The difference is that generic models are not provided with the OPTION TO TURN PLAN/RCP ON OR OFF. Help includes a seperate article about NON Cuttable families where those are listed.

I tried importing into a CASEWORK family template with worse results actually. The strange thing is that when importing Sketchup objects in the casework family template (which has the on/off Plan/RCP available, as apose to say generic model family), in the casework family the imported object appears to be completely non cuttable (and has the Plan/RCP option grayed out and unchecked in the Graphics/Visibility options as displayed in one of your previous images)!

"Material assignments for imported objects are faces... not cut." - I'm not sure what you're trying to say, indigenous (form/mass) object consist of faces aswell

 "If you want cut hatches, add 2D fills / linework and turn off import....." - I appreciate the advice but the whole idea of me starting this thread was to find a way NOT to resort to manual linework and filling .

Cheers

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solidsnakeala

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Hey! I had the same issue. but i figured out that if you override by element it will work.... (I know this is annoying but thats the only way i found)..

Please let me know if you figure a better solution...

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123456789revit

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The best workaround i could think of (though not efficient at all):

1) Export the geometry by material to different files. e.g first all the steels, then all the stones. I exported from Rhino, using Rhino file version 5, into Revit verison 20192) Import geometry by material, one at a time. e.g first all the steels, then all the stones. positionig method should be automatic, origin to origin, so that they all alighn as they did in rhino. then group them so that they remain still relative to each other when moveing them3) Righ-click on each object, override graphics in view, by elements.

4) chose the surface and cut properties you like. then repeat for each material.

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