Revit :: Make If And Conditional Statement Formula In Family With 3 Tests?
Jan 15, 2013
is there a way to make a if and conditional statement formula in a family with 3 tests?
For example,
Behind Furniture, Biscuit, Masonry Wall, Hard Ceiling are all yes/no parameters
if(and(Behind Furniture, Biscuit, Hard Ceiling), 0' 0 5/16", if(Behind Furniture, 0' 0 11/64", if(Biscuit, 0' 0 11/64", 0' 0 27/256", if(Masonry Wall, 0' 0 11/64", 0' 0 27/256"))))
what is wrond with my formula?
I am trying to change a dimension based on what yes/no parameters are checked. It keeps telling me that its "a bad if statement format". It works fine for the first teo dimension tests but when I add this last one I get the error. I need the 3rd dimension to check against 3 yes/no parameters all being = yes before moving on to the next check.
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Jan 16, 2013
Is it possible to read the current wall thickness of a door's host and use that dimension in a conditional statement to locate the frame's setback?
If the wall is deeper than the frame I want the door flush with the wall, if the frame is deeper than the wall, I want the door centered.
I set up a Wall Width paramenter in my door family but I keep getting the "Inconsistent units" error message.
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Jul 15, 2013
I wish to create a formula for a family parameter which itself references a 'Type' of an imported family. Specifically I wish to create a quoin stack which can be used for a 'reveal' situation either side of a door or window rather than just on a corner. A 'quoin stack,' as that which comes with the revit content files, typically is made up of two vertical arrays which intersect giving alternative long and short sides. Each of the arrays is made up of a different quoin type, a 'Short' and a 'Long' type which swap dimensions from from perpendicular face to the other. This of course is no good for a reveal situation where on the window or door reveal of both interleived courses needs to be the same, whilst maintaining the 'long/short' appearance on the wall face containing the window or door.
I have got so far as to create a 'reveal depth' parameter within the quoin stack family but need to find a way of addressing the 'Long' quoin type to change its 'short' dimension to suit the reveal depth whilst changing the 'long' dimension of the 'Short' quoin type to be the same.
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Aug 19, 2013
I created a block, that uses the Y coordinate of the block and returns it's location in a field.
I would like to be able to indicate weather the value is negative or positive. If Y coordinate is less then 0, then the field indicates "-" in front of the value. But if the Y coordinate is positive, I couldn't find a way to place "+"symbol in front.
Is there any way I could introduce a conditional statement saying: if Y>0 then add "+" in front?
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Mar 5, 2012
I was wondering if there was a way to make conditional formulas with a parameter? So I want a parameter called system. On the pulldown to enter the field under properties.
I want there to be 3 choices (i.e. 1=Air, 2=Water, 3=Gas).
If the user tries to enter any value other than the 3 values specified (whether by typing or pulldown), a message comes up stating they cant do that. The names for the systems have been simplifed for this example but the spelling is critical to the external database. I have tried but but I keep getting the follwoing is not a valid family parameter: X. X because thats the first conditional value.
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Feb 4, 2013
I've made a few roof hosted families, and they've all been fine in the past. For some reason, with this one, when you load it into a project it appears to be one 'ref level' too high for the roof host, hence revit errors, displaying that it can't cut the roof void.
I assume this is something really simple I should (or not!) have done with the family when I started it, can it be saved?
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Jan 29, 2014
I'm trying to align a nested family to a reference line in my host family so that it rotates around a certain point.
I've created the reference line in my host family, locked the end point to two reference planes and then gave an angular parameter to the angle between the ref. line and the ref. plane.
I then inserted the nested family and aligned it to the ref. line. The problem is that when I flex the angle, i get a "Constraints not satisfied" error..
What could be wrong?
I'm using a generic face based family for both host and nested families...
Using Building Design Suite Ultimate 2014
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Oct 3, 2013
We have a family that errors when certain values are hit. Its realated to Automatic Sketch Dimension reassociating with work planes when two workplans over lap... Anyway, the QA team knows about this.
The problem I have is that I have an IF statement to trigger an generic error message when these two rare conditions are met. I would rather a pop up window explaining what thy can not do. "Position of legs from ends can not equal half total length" and an OK button.
Is there a "say" style command for revit formulas?
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Nov 12, 2013
I'm facing a problem dealing with visibility formulas... My situation that im dealing with is, I have 2 yes/no visibility parameters, one that is called Right side clearance and another one named Left side clearance. I want to create another yes/no visibility parameter that's called Clearance. I want to link the Right and Left clearance parameter to the Clearance parameter where if it is off, then there will be nothing that shows.. But if I want it on then I would have to select either right or left without them both showing up?
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May 6, 2011
i want to create a sketch line for a sweep where the radius of the curve varies.. i don't want to use a spline or piece together arcs.. something about distance and radius along the line.. is there a formula and can this be done in revit?
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Dec 27, 2013
I'm trying to use a formula in a family that requires the host wall thickness.
I've setup an instance reporting parameter (dimensioned to the host wall faces) - which works fine in reporting the correct value.
But when I try to use that variable in a formula, I keep getting the error:
"Instance Parameters can't be used in Type Parameter formulas."
Is there a way of getting the reported dimension as a Type rather than an Instance - or is there another work around ?
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Feb 6, 2013
it is possible to create text and then attach a formula to it to change it.
For example:I want to be able to draw or pick a line and if the line is less than X ft than "Say this" if the line is greater than X ft than "Say that"
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Feb 12, 2014
is it possible (Revit 2014) to set up alternate dimensions that report the value represented in a different way via a simple formula?
I am trying to show my dims as brick units (based on standard metric bricks 215x102.5x65mm with 10mm mortar joint), and was hoping to create new 3 dim types, based on CO+, CO- and CO, so the alternate dims i want would be:
CO+ =[value-10]/225CO- =[value+10]/225CO simply =[value/225]
with the appropriate suffixes (CO+, CO- and CO). If this is possible..... or on the cards?
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Jul 18, 2013
In Revit 2013 I attempt to load an item from the Family but I find that the “Load Family” dialog box does not appear. how to get it to cooperate? Even starting a new project the load family dialog box does not appear. I have done: 1) system restore, 2 ) repaired install, 3 ) re-installed, 4) uninstalled and reinstalled from scratch but still the problems persists on this machine. all other office PC’s with Revit 2013 behave.
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Jul 5, 2013
I've attached a simple RVT file with a family inserted and the front view active. I need to rotate the family 90 degrees but Revit reports the following error:
"Can't draw because Work Plane is at a very sharp angle in this view. Go to another view or redefine the Work Plane."
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Mar 14, 2012
I have several window types in my project. Let's say that the window is 3'-0" wide by 4'-8" high - Mark #1. I want to group three of these windows and schedule the group as Mark #2 - not three separate #1 windows. How do I set up the three windows together to become a single window schedulable for the entire opening of the three windows grouped together so that the opening would read 9'-0" wide?
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Jan 15, 2014
Is there a way to load, for example, a wall created in a different project, into another project?
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May 21, 2013
I downloaded a grab bar family that I thought looked very good. But then I tried to place it on the toilet stall portion (I also downloaded stall partition families). When I tried to place the grab bar, it wouldn't place -- I believe because the grab bar is WALL BASED.
So now the question is how do I go about placing a grab bar (or anything else) that is not wall based so that I can use it with the stall portion? I had tried to use face based but couldn't get that too work.
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Mar 28, 2012
Im try to crop .rft format but i cant crop my family model in project file. Then how to explode family in project file.
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Apr 9, 2013
I would like to create family type with drop down list as shown in the image.
How it is created and for what?
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Nov 9, 2011
Recently, My revit does not load families. The process I use is the following:
In the Build area of the home ribbon, I select the Component button. I going to the Place component ribbon. When I select Load Family form the Mode portion of the ribbon, the properties box pops up. It is locked at this point and I cannot do anything but hit escape. The program functions just fine in all other aspects. I have used a vanilla project to see if the project I am working on is corrupted and I get the same results.
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Jun 10, 2013
I am trying to create a custom planter based off some line work that I did in my project. It has a curve. basically what I have done is created the line work on plan but now I want to use that curved line to create my family. which I am thinking I can create a profile and then sweep it on those lines. The problem is I can get the line work to the family.
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Dec 16, 2009
I'm trying to edit the keynote family with no luck. We are updating our standards and getting into using the keynote system in revit. I have added the correct keynote to most of our standard materials and its working great. I then opened the keynote family and changed the justification of the text to justify the way we do notes. I also changed the line style of the leader lines so it matches our other notes.
All went well. I get stuck when I try to change the gap between the leader tail and the text. I can't find anywhere to actually edit the line/arrow in the family that would let me change how that works. If you see my attached image the one on the top is our standard note and the other two are the keynote family.
How to set / change that gap?
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Feb 1, 2012
I'm trying to create a frame and panel kitchen cabinet door family. It flexes correctly horizontally, but I can't get it to flex vertically. What do I need to correct?
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Oct 20, 2010
Is it possible to create the Wall family in revit?
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Oct 3, 2012
Removing tag leader, I couldn’t know how to remove the leader of the tag from its family. How this might be done?
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Nov 2, 2011
This includes door opening/cased and opening-elliptical art. When I put them into my drawing they show up in the preview but do not insert into my drawing.
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Dec 13, 2012
I know I must just be missing this somewhere, but I would like to shut off the geometry inside a family that's associated with a specific parameter. This is while I'm editing the family.
Specifically, the family I'm creating is for an appliance that has the option of an arched, or rectangular opening. Once I associate the geometry for the arched opening with a parameter, I'd like to shut that off, so that I can create the rectangular opening. Similar to how the family behaves once it's brought into a project.
Right now, I'm just kind of using the temporary hide functionality to shut them off, but if I turn them on, then have to go back to make edits, I have to select the individual geometry all over again to hide it. I've also noticed that some geometry, even when hidden, can still be selected.
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Nov 12, 2013
As Revit insert a door it cuts the wall starting at the flooring level upward door height but in real building the door openning starts from the top concrete
Can I tell revit to start cutting the wall bellow flooring (leaving the door wing to start from flooring) or how can i add this feature to door family...i would like to control the height of the cut below flooring (e.g be a parametric).
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Feb 10, 2009
Is it possible to add a rotation control to an annotation family like the ones in elevation tags?
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Jan 18, 2013
The line color of my family is not showing up. It is just a symbol and it should be red, but it shows up black. I went to the overides in the project and nothing was overridden, so I went ahead and changed the imported families override to red just to see if it would change and it still didn't change. How do I fix this? When I open the family, the lines are red, just not in the project.
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