Beam start and end segment arrow dont appear

[mairh_tsek]

Hello all,

I am trying to create a beam in a reference plane, and I dont see the 'arrows' in the start and end segment of the beam in order to adapt it.. do you know why ? 

Also, do you have any good source about how the reference planes work ?

Thank you in advance ! 

[Ahmed_Muharram]

the beams has no arrows! what you mean by "arrows"

could you attach a picture 

for reference planes check this :

https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2018/EN.... 

https://youtu.be/TwpYtER2s80 

[barthbradley]

@mairh_tsek: Is it a Structural Framing Family?  If not, and you want be able to grab and drag to lengthen or shorten the geometry, the ends of the geometry need to be Aligned and Locked to a Ref. Planes** or Ref. Lines** in the Family and those Ref. Planes/Ref. Lines driven by Dimensions that is labeled to an INSTANCE Parameter. When placed and selected in the Project View, a "blue dot" will appear, and you drag this blue dot to dynamically resize the Family geometry in the Project.  

Is that understandable? 

**Note: Align and Lock to Ref. Planes if you want the "blue dot" to only appear in 2D Project Views. Align and Lock to Ref. Line if you want the "blue dot" to appear in all Project Views (2D and 3D).  

...something else for you. Note "Cut Length" vs "Length": 

http://help.autodesk.com/view/RVT/2016/ENU/?guid=GUID-89D4AB0D-4D2E-4391-802E-F8AF478637FC

http://help.autodesk.com/view/RVT/2016/ENU/?guid=GUID-7840E4E6-2F81-451F-90CF-9CBFAD152062

[ToanDN]

The arrows only appear when you Miter the beams.

[barthbradley]

[mairh_tsek]

Thank you all for your time and sorry about my explanation. 

1. I want to create some beams like the first image. So I created a section parallel in the position that I want. In the section view I created a reference plane. After I set this reference plan in the floor plan (or in the 3D) and I created the beam. In some sections I coude adjust each time the beam using the 'arrows' but in some other section the arrows weren't visible ( I could see them only in the 3D). 

2. I am strucggling to understand the work planes. When I set as work plane the reference plane (in section view) after revit show me a list of views..why I cannot use the same section that I created the reference plane ?

The beam that I used is a .rfa from the Revit library. 

Thank you!

[barthbradley]

. 

[barthbradley]

I'm sorry @mairh_tsek. I'm still not understanding what you are trying to do with Ref. Planes and your Structural Framing family, which is a Level-Based, not Work Plane-Based family.  Reads to me like you want xy Justification to be "Independent"  so that you can apply different Start and End z Offset Values. 

[PhilvK]

I want to miter the blue beams below at their intersections. The screen lightens when I activate the join tool but the joining arrows don't appear. Is that because there are columns nearby (green and orange)? Please note that I have successfully mitered and locked these corners when they are alone in a separate file, but the miters disappear when I paste them back into the main file.