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Fri, Jul 30, 2010 at 12:15:46 AM | Should I draw house at angle?

#1

Oliwally


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I want to draw a house on a block of land using Revit Architechture. The block of land does not have any of it's boundaries aligned perfectly to north - it's at an angle.

My question is: Should I draw my whole house at an ange in the  Revit, or should I draw everything nice and straight (horizontal and vertical), and then tell revit later where the direction of North is?

What's the architectural standard there? Draw it as per default nice and straight, or draw the whole house at an angle (see attached image)?

Thanks for your help.



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Fri, Jul 30, 2010 at 12:47:27 PM | Should I draw house at angle?

#2

WWHub


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Don't play games with north if you don't have to.  Just rotate the view to be normal with what you are drawing.

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Fri, Jul 30, 2010 at 3:35:46 PM | Should I draw house at angle?

#3

brettgoodchild


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Hub is right...just rotate the view.

You should read about Project North and True North in help.


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Fri, Jul 30, 2010 at 8:31:48 PM | Should I draw house at angle?

#4

itsmyalterego


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build your project with major components aligned orthogonally.  It'll save you major headaches -- revit's gentle snaps favor this, and if your project is aligned arbitrarily north, Revit is less helpful with its second tier choices of snaps, and you'll start pulling your hair out as you find 90.4 degree angles and the like. 

 

You can rotate north at a later time, although from my experience, not all objects respond well to this, though mostly just components like chairs and trees which can be put back in place quickly enough with some rotating.


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Sat, Jul 31, 2010 at 6:04:15 AM | Should I draw house at angle?

#5

Oliwally


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Thank you so much for your help - you're all tops!

 So to reiterate - draw the house/ building orthogonally as this is the defaul in Revit. Rotate any images I need to trace over for this (see attached image). It will give me less headaches.

Then, later, when I want to do a sun study and such like, I tell Revit where North is. Likewise, if I want to show a site plan that is rotated correctly on a sheet, I should rotate just that view (perhpas make a copy and rotate it, leaving the original untouched), so that North is pointing straight up (see attache "sheet view"Winking.

 Are my assumptions correct?

 Thanks again for your fantastic help.



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Sun, Aug 1, 2010 at 2:57:08 PM | Should I draw house at angle?

#6

WWHub


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No. your assumptions are not correct.  Start with true north up, Revit's default.  Create your site plan and maybe define where your building will be.  Then rotate your view as required to model your building and to create any sheet views. 

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Sun, Aug 1, 2010 at 10:07:19 PM | Should I draw house at angle?

#7

Oliwally


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Ok, I think I'm slowly getting there. Thanks for sticking with me on this.

 This is what I did - please correct if wrong.

  1. Go to site view and import image - rotate so that if I were to draw house, it would be orthogonally
  2. use Toposurface (or lines) to draw the site, other tools to draw house etc - all with Project North pointing straight up (on now rotated image, North of image not pointing up). This would enable me to draw the house orthogonally using Revit defaults.
  3. Draw some lines and annotate with dimensions in order to work out how much the whole thing would need to be rotated in order for the whole drawing to have true north pointing up.
  4. Click on the 'Project Base Point' icon on the site view (circle with cross in it)
  5. Adjust 'Angle of True North' to previously calculated angle or the negative thereof...(step 3)
  6. Click on 'Survey Point' icon and check it's correct (triangle with cross in it), making sure True North now aligns with imported image's North.
  7. Now to rotate the view - right click on the view > properties >switch Orientation form Project North to True North.

This way I could draw the house in Project North rotation (all nice and orthogonal) as well as being able to view the whole shabang rotated with True North pointing straight up.

I somehow have the feeling that this is still not quite what WWHub means.

WWHub - if this is still incorrect, could you perhaps give me step-by step instructions of what you mean? Thanks so much. Sorry to be such a pain.

Please continue to help me. I'll get there...

Edited on: Sun, Aug 1, 2010 at 7:23:58 PMEdited on: Sun, Aug 1, 2010 at 7:39:30 PMEdited on: Sun, Aug 1, 2010 at 7:41:42 PM

Edited on: Sun, Aug 1, 2010 at 8:13:48 PM

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Mon, Aug 2, 2010 at 1:26:39 PM | Should I draw house at angle?

#8

WWHub


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Sorry but you still don't seem to understand.

  1. Start your site plan.  Revit defaults to North up.  Don't worry about being orthogonal so you site plan might be skewed in the view.  You property lines can then be drawn correctly by bearing and distance.
  2. Add any model of the site now or later - doesn't matter.  True north has been established and it will stay in the relationship you now have to all model elements and linework.
  3. Use reference planes or line work to establish where your building will be and at what angle to the site.
  4. You can now rotate this view as required to place your site on a sheet.
  5. Goto you floor plan view.  If you had used reference planes to define where your building will be, you should see those.  If not, copy your layout lines to clipboard from your site plan, then paste same place in your floor plan.  Now you should see where the building will be and it will be at some angle you can measure from horizontal.
  6. Now - rotate the view at that angle so this plan is now orthogonal.   Project north can be shown as something close to true north... or maybe you have a true north symbol that has been rotated at the same angle.

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Mon, Aug 2, 2010 at 6:09:52 PM | Should I draw house at angle?

#9

mbsteve


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What WW means is turn on the view frame, click on the view frame and you can rotate it.

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Mon, Aug 2, 2010 at 8:03:26 PM | Should I draw house at angle?

#10

vinnygolfer


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there was a nice class at AU last year for the MEP track that addresses this. true north / project north. you can set your true north to be any angle off project north you want it to be, but work in project north where everything is vertical and horizontal. the class was MP222-2 and here is the web address. http://au.autodesk.com/?nd=class&session_id=5408 about 18 minutes into the video, it's very easy.

i hope that helps


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Wed, Aug 4, 2010 at 2:49:32 AM | Should I draw house at angle?

#11

Oliwally


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Thank you so very very much for your excellent help. I think I'm ok from here.

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