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Understanding view range

From: Revit Architecture 2013 Essential Training

Video: Understanding view range

Orthographic views in Revit are generated from the 3D model using a variety of rules derived from conventional architectural drafting. When it comes to plan views, architectural drafting convention treats a plan as basically a horizontal section, cutting the building at a predetermined height above the floor and looking down into the model. Naturally, there are many other rules and abstractions applied to the graphics to achieve an acceptable floor plan; however, the concept of the cut plan is used quite literally in Revit. In this movie we're going to look at the View Range feature, which incorporates the cut plane and a few other settings. And I'm in a file here called View Range in order for us to do that.

Understanding view range

Orthographic views in Revit are generated from the 3D model using a variety of rules derived from conventional architectural drafting. When it comes to plan views, architectural drafting convention treats a plan as basically a horizontal section, cutting the building at a predetermined height above the floor and looking down into the model. Naturally, there are many other rules and abstractions applied to the graphics to achieve an acceptable floor plan; however, the concept of the cut plan is used quite literally in Revit. In this movie we're going to look at the View Range feature, which incorporates the cut plane and a few other settings. And I'm in a file here called View Range in order for us to do that.

So I'm looking at the Level 1 Floor Plan view, and it has all of the default View Range settings applied to it. Now let's start with where we can find the View Range settings. So if you look at your Properties palette and make sure it says Floor Plan over here and scroll down, and under the Extents grouping, you will find the View Range with an Edit button. Click that, and what you'll see is a series of four settings here. Now at the top of the dialog it says the primary range and then below that it says you've got the view depth, and we're going to focus on the primary range for right now.

You can see that the cut plane is established at four feet above the floor. Now, all of these are set to the current level, so these are all associated to level one, which seems pretty standard, pretty acceptable. The bottom of the view range is at 0, so we're only seeing down to the floor itself, Level 1 floor itself, and we can potentially see up as high as 7'6" foot above the floor. Now let me show you this another way. I'm going to cancel out of there, and I'm going to open up the east elevation. And I'm going to zoom in over here.

I've drawn some lines here, just to kind of illustrate. And these lines are actually drawn relative to the second floor, because we're going to look at an example up there. So here's the situation where we have a tall wall. This is the second-floor level, and there is that line right there. That big heavy line represents that four feet above that we just saw in the dialog. So that represents where the cut plane is. So that's going to capture these two windows right here. Revit kind of says this is the primary range, in this area. This reddish color line, there is the 7'6", which means we wouldn't see anything above that point, which means these three windows here are not being seen at all.

They are outside of the view range. Now I've draw another line here at 12 feet. So what I want to illustrate is, if we start modifying the settings in the view range, we can actually tell Revit that rather than cutting through these windows, I'd rather have it cut through these. So let's open up the floor plan that shows this. That's actually Level 2. And we're in this general area over here, and you can see that we're cutting through those two slider windows right now that we just saw in the elevation, because we're cutting at 4 feet.

So let's scroll down over here, locate the View Range. Let's move this out of the way a little bit. And I'm going to change this to 12, like we just saw in the illustration. Now I should point out one other thing. If I try and click OK here, I'll get an error message that says I've got an error that the top of the clip plane is below the cut plane. These numbers have to be in order. So let me close that. This is your highest number; this is your lowest number. Now notice they can be the same, but they just can't get out of order. So that means that my top of view range has to be at lease 12 feet, or it could be taller than that.

So in this case I'll just go ahead and make it 14. I'm just making up a number. And let's click Apply and you'll see what happens. Notice that we're now cutting through those smaller windows that are up above. Now I can't zoom while this box is open, so let me OK out of there and kind of move around here. And notice that that may have taken care of the windows, but it kind of caused some trouble elsewhere in the plan, where we're not seeing the doors anymore, we're not seeing any of these other windows, because at a 12-foot cut height we're just much too tall now to see any of these objects.

There is stuff in the way. These walls are in the way and other things. So I'm to undo that change, like so, to get back to a more suitable floor plan. If I actually wanted to see those windows up above and still maintain the rest of the floor plan, then I have a feature here called a plan region that I can use instead. So I'm going to come over here to the Modify tab, click on the dropdown, and create a plan region. Now when I create this, you've got some different shapes, and I'm just going to do a simple rectangle.

And I'm going to do it, just trying remember exactly where those windows are. I think they are right about there, just about like that. And I'm going to finish that. So I got an error. Revit is telling me that I have boundaries overlapping, and you might notice here in orange the offending boundary. So I actually already had a plan region in this file, and the two can't overlap is what this message saying. So I can either delete the element or what I'm going to do is cancel, because delete doesn't seem like a very good thing to do. And I'll just modify this slightly so that they're not overlapping anymore, and click Finish.

Now what this does right here is it gives me a View Range button that applies just within that rectangle. So I'm going to click that. And it's the same exact settings. so let's go with 14 feet, let's go with 12 feet, let's click OK, and now you'll see that we get the smaller windows, but it's only in that small, little area right there. Now it looks I've got some fine-tuning to do, because it's kind of cutting this wall in a funny way, but notice I get some grips here, so I can just go. Oh, let's just do that, and that looks a little bit better.

Then with respect to these overlapping ones, if you really needed to see it here, you just have to be a little bit more careful about how you draw your sketches. Now, why do I have this one over here? Well, if we zoom out over here, this one surrounds the lower roof. Here is the lower roof and if I didn't have this here--let me just delete it--you'll notice the way the roof looks. It's actually being cut through, because the four-foot cut plane hits partway through the roof. So I'm going to undo that, select this, look at its view range, and you could see that by raising the view range just around the roof area, I can get it to display up above the ridge.

If we look at the east elevation, that might be a little bit more clear. So let's zoom out a little bit. Here's the 4 feet. So if we left it alone, you can see how it cuts through the roof, and that's why the roof didn't display so well. But when we move it up above, then we're looking down on the roof when we see it more correctly. So that's the primary reason you would go into either View Range or Plan Region, is because you want to manipulate this Cut Plane feature. So most of the time you'll be using the View Range dialog to manipulate the cut plane in some way.

There are, however, a few other settings in there, so we'll save those for the next movie. You use the Cut Plan feature in the View Range dialog to determine where your floor plans are being cut from. If you can't find a setting that works for the entire floor plan, then we have our Plan Region feature, which allows us to create a small, little specialized area of the floor plan that has a different cut plane than the rest of the floor plan.

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This video is part of

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Revit Architecture 2013 Essential Training

96 video lessons · 12635 viewers

Paul F. Aubin
Author

 
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  1. 1m 57s
    1. Welcome
      1m 2s
    2. Using the exercise files
      55s
  2. 14m 43s
    1. Introducing building information modeling (BIM)
      3m 0s
    2. Working in one model with many views
      4m 48s
    3. Understanding Revit element hierarchy
      6m 55s
  3. 54m 44s
    1. Understanding the different versions of Revit
      1m 19s
    2. Exploring the Recent Files window and the application menu
      5m 20s
    3. Using the ribbon and the Quick Access Toolbar (QAT)
      7m 12s
    4. Understanding context ribbons
      4m 43s
    5. Using the Properties palette
      8m 31s
    6. Using the Project Browser
      5m 34s
    7. Navigating views: Zooming, panning, and rotating
      5m 57s
    8. The basics of selecting and modifying
      9m 49s
    9. Accessing Revit options
      6m 19s
  4. 47m 6s
    1. Creating a new project from a template
      7m 42s
    2. Accessing a multi-user project with worksharing
      4m 16s
    3. Configuring project settings
      6m 33s
    4. Adding levels
      7m 40s
    5. Adding grids
      6m 23s
    6. Refining a layout with temporary dimensions
      6m 58s
    7. Adding columns
      7m 34s
  5. 1h 11m
    1. Adding walls
      8m 48s
    2. Using snaps
      6m 24s
    3. Exploring wall properties and types
      7m 37s
    4. Locating walls
      7m 27s
    5. Using the modify tools
      9m 32s
    6. Adding doors and windows
      7m 39s
    7. Using constraints
      8m 27s
    8. Adding plumbing fixtures and other components
      8m 39s
    9. Using Autodesk Seek
      4m 19s
    10. Using wall joins
      3m 0s
  6. 1h 11m
    1. Linking AutoCAD DWG files
      10m 59s
    2. Creating topography from a DWG link
      7m 43s
    3. Understanding CAD inserts
      7m 56s
    4. Import tips
      6m 49s
    5. Creating a group
      7m 10s
    6. Mirroring groups to create a layout
      5m 3s
    7. Creating Revit links
      5m 16s
    8. Rotating and aligning a Revit link
      7m 6s
    9. Establishing shared coordinates
      6m 5s
    10. Managing links
      6m 0s
    11. Understanding file formats
      59s
  7. 1h 13m
    1. Working with floors
      8m 57s
    2. Working with footprint roofs
      6m 22s
    3. Working with extrusion roofs
      4m 59s
    4. Attaching walls to roofs
      3m 17s
    5. Using the shape editing tools to create a flat roof
      6m 33s
    6. Working with slope arrows
      6m 0s
    7. Adding openings
      8m 33s
    8. Working with stairs
      8m 4s
    9. Adding railings to stairs
      3m 40s
    10. Working with ceilings
      9m 36s
    11. Adding extensions to railings
      7m 20s
  8. 48m 34s
    1. Creating a custom basic wall type
      10m 18s
    2. Understanding stacked walls
      8m 12s
    3. Adding curtain walls
      8m 17s
    4. Adding curtain grids, mullions, and panels
      10m 59s
    5. Creating wall sweeps and reveals
      6m 26s
    6. Exploring model lines
      4m 22s
  9. 47m 40s
    1. Using object styles
      4m 19s
    2. Working with visibility and graphic overrides
      7m 3s
    3. Using view templates
      6m 13s
    4. Hiding and isolating objects in a model
      6m 37s
    5. Understanding view range
      7m 7s
    6. Displaying objects above and below in plan views
      6m 35s
    7. Using the Linework tool
      5m 21s
    8. Using cutaway views
      4m 25s
  10. 21m 28s
    1. Adding rooms
      8m 15s
    2. Controlling room numbering
      6m 13s
    3. Understanding room bounding elements
      7m 0s
  11. 33m 13s
    1. Understanding tags
      9m 58s
    2. Adding schedule views
      7m 55s
    3. Modifying schedule views
      7m 12s
    4. Creating a key schedule
      8m 8s
  12. 58m 40s
    1. Adding text
      7m 29s
    2. Adding dimensions
      9m 6s
    3. Adding symbols
      4m 42s
    4. Adding legend views
      4m 51s
    5. Creating a detail callout
      8m 31s
    6. Adding detail components
      8m 52s
    7. Using arrays to duplicate objects parametrically
      7m 43s
    8. Adding filled and masking regions
      7m 26s
  13. 41m 29s
    1. Understanding families
      2m 37s
    2. Creating a new family from a template
      6m 29s
    3. Using reference planes, parameters, and constraints
      7m 52s
    4. Adding solid geometry
      8m 40s
    5. Cutting holes using void geometry
      5m 9s
    6. Adding blends
      6m 2s
    7. Completing the family
      4m 40s
  14. 38m 48s
    1. Adding sheets
      7m 44s
    2. Working with placeholder sheets
      5m 24s
    3. Aligning views with a guide grid
      5m 57s
    4. Outputting sheets to a DWF file
      6m 39s
    5. Exporting to AutoCAD
      5m 42s
    6. Plotting and creating a PDF
      7m 22s
  15. 2m 38s
    1. Next steps
      2m 38s

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