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Joined: Mon, Oct 7, 2013
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I have a master planning project that I have recently started in Revit 2014. At the moment, for speed and ease, I have used fill regions to define roads, parking, pedestrian walkways etc. and the buildings themselves are conceptual masses.
I am now trying to develop the model to allow all this to appear in 3D for perspectives / aerial views etc. There is a topo region in the model based on contours from an OS.
My initial attempts to do this involved copying the sketch for the filled regions and pasting it into a sub-region sketch. In theory this would work well because the roads etc. would follow the contours of the topo region. In practice adding more than one sub-region caused issues regarding overlapping.
This error appears even if there is only a 1mm overlap which makes that process impractical at best.
Other notes:
· The regions will need to follow the topography
· The model will have to remain fairly flexible as the design is likely to change regularly
Has anyone got any ideas, advice, tips, anything that might help.
Thanks in advance.
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Joined: Tue, May 16, 2006
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The regions will not follow topography but you can use the flat sketches you created them with to sketch splits of the topo surface then assigning proper materials to the split area - roads - walks etc. The split sketch will be "flat" from a plan view but the surface will be 3D.
Obviously this process may not lend itself well to changes so keep the initial model handy and simply redo the splitting process after modifying your filled regions.
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Thanks wwhub for the reply.
A quick question. The site is roughly 1.8km long and the roads etc are full of arcs, will splitting the surface cause a lot of slow down in the model?
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Splitting the surface should not be a problem. Read up on how to do this. The split MUST define a seperate area - either all the way across the site or a closed polygram. NOTE - You have to pay attention to two adjacent areas because one edge of your site you will be trying to split is now defined by a previous split.
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Do you really mean split wwhub? I have been using subregions for this kind of thing as you can get into trouble with pads if you split the topo. My best tip: If you take the time to make a tidy 2d line drawing as an underlay then you can trace the lines for subregion edges so there is no overlap but shared edges. This is particularly important if you split the topo or use pads.
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I have always used split but I never have a pad in that area to deal with. Sub regions will obviously work as well. The advantage of split is you can drop a site area down a curb depth, split the surfaces again to create a curb face and then merge the edge splits to create the curb face.
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