Forums >> Revit Building >> Technical Support >> Complex Brick Pattern Elevations

blue442

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Joined: Tue, Aug 25, 2009
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Hey guys, We haven’t done any brick patterning inside of revit (yet).  and I know it's coming soon.  So I’m trying to head this off at the pass... This is an example of how we have done our elevations in the past in AutoCAD. We typically create a single block for the repeat and extrapolate it over the face.  Clipping it as needed.

How I "think" I would need do this in revit (to recreate what we’ve done as an example) is to make a custom hatch pattern for that repeat (and every variation of it) for the elevations.  I'll need to split faces for the stacked bonds at the corner, and for the flush rowlock at the top of the brick course below the precast band.

The thing I’m not entirely sure of - is it possible to have two separate line weights within the hatch pattern?  In this example at 1/8" scale - using a hatch behind the brick makes it read too dark for the scale.  We have a solid gray hatch pattern there but froze it in the 1/8" scale elevations.  We then set the hatch boundary to be a darker pen weight.    Then when we blew the elevations up at 1/4" we just unfroze the hatch layer.

Furthermore, it's not possible to do solid hatches inside pat files, so in order to do a fill of sorts I would need to use an angled line probably.

Any input on this would be great.  I'm not sure if this is the best process for dealing with complex brick patterns.

Thanks

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WWHub

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Joined: Tue, May 16, 2006
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There have been many posts here aact but I have never seen a good solution.  The hatch pattern will not do the trick because you still want a brick pattern and hatches don't have filled areas.  You could have a filled regions in view that shade these bricks but that will not work for any 3D views.

Here is a possible solution using a thin wall (mine is 1/4").  You may want to place this thin wall in a seperate workset so that it can be filtered out or turned off.

Look at the attached images.

1. I made a thin wall - the material has the same hatch as the main wall but would want to be a different material for render color. 
2. I then added an in place void family (all one sketch) using the face of this wall as the work plane.  Note - your zig/zag can be easily mirrored and copied to create the sketech - each portion has to be a closed loop.  Not set the cut depth and cut this wall.  Don't let it go past the back of the wall.
3. Now you can align this wall to your main wall and join so cutting elements like windows cut both walls.
4. Finally, in each view where required (not render views), pick the thin wall and over-ride graphics in view by instance setting the fill pattern to solid fill - color grey.  Now you MUST also set the over-ride transparency enough to see the pattern behind it.

When sketching the void family - don't worry about doors and windows as they will not affect this.   BTW - You can copy the sketch before closing to use on other thin walls around the project.

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WWHub

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ANother clarification.  The void extrusion is one extrusion.... all in one sketch.... so only one in-place family for each thin wall.

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blue442

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Hmm..   that's a good work around.  I'll play with this a bit.  Thank you.  I did understand the single void in-place family per wall.

I've never created a seperate workset for objects.  I'll do some reasearch on that as well.  Thank you for the idea.  Sounds like i could then filter it out for everyting except elevations.  in the rare chance we have an elevation/section together (elevation beyond) we could unhide the wall with the solid fill gray in that one view.

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blue442

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WWHub, thank you!

I was able to reproduce.  This should work for us!

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hugh

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Joined: Tue, Jan 27, 2004
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HatchKit 2014 (currently in beta) contains brick pattern generator that allows brick and tile patterns to be specified by nominating how many bricks occupy a given width and height and the degee of overlap (bond). There is also provision to place a designated number of dots randomly on the surface of each brick and the width of intervening grout or mortar if required.

HatchKit 2014 Beta is available from http://www.hatchkit.com.au/hk2014betaofferform.php

-----------------------------------

Hugh Adamson

www.hatchkit.com.au

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