Wrong rebar Hook orientation REVIT API

REDO10 · April 30, 2023, 10:08am

Hi everyone,

I tried to create beam’s rebar using Revit API, but I get Hook orientation opposed only when shoosing 90° value!!?..can anyone explain me the reason for that?

here my graph

Hook orientation

import sys
import clr
import math
from System.Collections.Generic import IList, List

clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)

doc = DocumentManager.Instance.CurrentDBDocument

curve = IN[0].ToRevitType()
bar_type = UnwrapElement(IN[1])
ber_Hook_type = UnwrapElement(IN[6])
host = UnwrapElement(IN[3])
vect = IN[2].ToRevitType()
beam_width = IN[4].ToRevitType()
width = beam_width.Length
cover = IN[5]/0.3048
spacing = 0.10/0.3048

curv = List[Curve]()
curv.Add(curve)
TransactionManager.Instance.EnsureInTransaction(doc)
rebar = Rebar.CreateFromCurves(doc, RebarStyle.Standard, bar_type, ber_Hook_type, ber_Hook_type, host, vect, curv, RebarHookOrientation.Left, RebarHookOrientation.Right, True, False)
rebar.GetShapeDrivenAccessor().SetLayoutAsFixedNumber(math.ceil((width-2*cover)/spacing), width-2*cover, True, True, True)
TransactionManager.Instance.TransactionTaskDone()

OUT= rebar

Thanks.

christian.stan · April 30, 2023, 1:25pm

Hi,
I don’t have the same conclusion
copy paste your code
I simply oriented the vector at the entrance I had a (0,0,1) with my edge bar support

edit

Cordially
christian.stan

REDO10 · April 30, 2023, 3:24pm

@christian.stan

it’s strange…does not work for me!!
I’ve not posted the first script where I created rebar curve (in your example you selected the beam edge without offseting it with the cover value)

I made change in my script where I create also the top rebar (with the same error)

below my graph and my two script (curves script, rebars script)

curves script

import sys
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *



btm_beam_edge = IN[0]
Top_beam_edge = IN[1]
beam_width = IN[2]
cover = IN[3]

Subtract_vector = btm_beam_edge.Direction.Normalized().Scale(cover)
Pt1 = btm_beam_edge.StartPoint.Subtract(Subtract_vector.Reverse())
Pt2 = btm_beam_edge.EndPoint.Subtract(Subtract_vector)
Pt3 = Top_beam_edge.StartPoint.Subtract(Subtract_vector.Reverse())
Pt4 = Top_beam_edge.EndPoint.Subtract(Subtract_vector)

Bottom_rebar = Line.ByStartPointEndPoint(Pt1, Pt2)
Bottom_rebar = Bottom_rebar.Offset(-cover)
Bottom_rebar = Bottom_rebar.Translate(Vector.ByCoordinates(0,0,1).Scale(cover))

Top_rebar = Line.ByStartPointEndPoint(Pt3, Pt4)
Top_rebar = Top_rebar.Offset(-cover)
Top_rebar = Top_rebar.Translate(Vector.ByCoordinates(0,0,-1).Scale(cover))

OUT = Bottom_rebar, Top_rebar

rebars script

import sys
import clr
import math
from System.Collections.Generic import IList, List

clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)

doc = DocumentManager.Instance.CurrentDBDocument

curve1 = IN[0].ToRevitType()
curve2 = IN[1].ToRevitType()
vect = IN[2].ToRevitType()
host = UnwrapElement(IN[3])
beam_width = IN[4].ToRevitType()
width = beam_width.Length
cover = IN[5]/0.3048
spacing = 0.10/0.3048
Btm_bar_type = UnwrapElement(IN[6])
Top_bar_type = UnwrapElement(IN[7])
ber_Hook_type = UnwrapElement(IN[8])


curv1 = List[Curve]()
curv1.Add(curve1)

curv2 = List[Curve]()
curv2.Add(curve2)

TransactionManager.Instance.EnsureInTransaction(doc)

Btm_rebar = Rebar.CreateFromCurves(doc, RebarStyle.Standard, Btm_bar_type, ber_Hook_type, ber_Hook_type, host, vect, curv1, RebarHookOrientation.Left, RebarHookOrientation.Right, True, False)

Top_rebar = Rebar.CreateFromCurves(doc, RebarStyle.Standard, Top_bar_type, ber_Hook_type, ber_Hook_type, host, vect, curv2, RebarHookOrientation.Left, RebarHookOrientation.Right, True, False)

Btm_rebar.GetShapeDrivenAccessor().SetLayoutAsFixedNumber(math.ceil((width-2*cover)/spacing), width-2*cover, True, True, True)

Top_rebar.GetShapeDrivenAccessor().SetLayoutAsFixedNumber(math.ceil((width-2*cover)/spacing), width-2*cover, True, True, True)

TransactionManager.Instance.TransactionTaskDone()

OUT= Btm_rebar, Top_rebar

Thanks.

christian.stan · April 30, 2023, 4:04pm

I used the script of your 1st message with two beams oriented in a different way (without taking into account the covers, I know that they exist… normally)
Could be a lead

Cordially
christian.stan

REDO10 · April 30, 2023, 4:42pm

@christian.stan

I dont know where I was wrong??? (see my selction in the image below)

Thanks.

christian.stan · April 30, 2023, 6:08pm

Why don’t you try at first to base yourself on the edges of your elements to see if you have a good orientation of your hooks.
like that you will see if it comes from your 1st script or not.

Cordially
christian.stan

REDO10 · April 30, 2023, 6:27pm

@christian.stan
Of course I tested my first script and my edges are correctely seted (inside the beam)
My selection is correst like your’s?

Thanks.

christian.stan · April 30, 2023, 7:09pm

I tried to be as clear as possible
I only tried for the lower part.
here is result with your scripts

With your scripts

script 1

import sys
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
btm_beam_edge = IN[0]
beam_width = IN[1]
cover = IN[2]

Subtract_vector = btm_beam_edge.Direction.Normalized().Scale(cover)
Pt1 = btm_beam_edge.StartPoint.Subtract(Subtract_vector.Reverse())
Pt2 = btm_beam_edge.EndPoint.Subtract(Subtract_vector)

Bottom_rebar = Line.ByStartPointEndPoint(Pt1, Pt2)
Bottom_rebar = Bottom_rebar.Offset(-cover)
Bottom_rebar = Bottom_rebar.Translate(Vector.ByCoordinates(0,0,1).Scale(cover))


OUT = Bottom_rebar

Script 2

import sys
import clr
import math
from System.Collections.Generic import IList, List

clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)

doc = DocumentManager.Instance.CurrentDBDocument

curve = IN[0].ToRevitType()
bar_type = UnwrapElement(IN[1])
ber_Hook_type = UnwrapElement(IN[6])
host = UnwrapElement(IN[3])
vect = IN[2].ToRevitType()
beam_width = IN[4].ToRevitType()
width = beam_width.Length
cover = IN[5]/0.3048
spacing = 0.10/0.3048

curv = List[Curve]()
curv.Add(curve)
TransactionManager.Instance.EnsureInTransaction(doc)
rebar = Rebar.CreateFromCurves(doc, RebarStyle.Standard, bar_type, ber_Hook_type, ber_Hook_type, host, vect, curv, RebarHookOrientation.Left, RebarHookOrientation.Right, True, False)
rebar.GetShapeDrivenAccessor().SetLayoutAsFixedNumber(math.ceil((width-2*cover)/spacing), width-2*cover, True, True, True)
TransactionManager.Instance.TransactionTaskDone()

OUT= rebar

Cordially
christian.stan

REDO10 · May 1, 2023, 1:12pm

@christian.stan

this issue makes me crazy !!

You used my scripts without any changes and that’s works for you , but for me that not works!!

here my last test:

Is that related to my Dynamo or Revit settings or Something else?? (I’m using Revit 2022)

@jacob.small @c.poupin any idea to fix this issue?

Thanks.

christian.stan · May 1, 2023, 2:11pm

Hello, try to see by adding in your 2nd script
import System
Before
from.System.Collections.Generic import List,Ilist

Cordially
christian.stan

REDO10 · May 1, 2023, 3:02pm

@christian.stan

I tried what you suggested me without result

Why that’s happen only with Hook at 90°, is there a bug in structural design package?

Which structural package you use?

Thanks.

christian.stan · May 1, 2023, 3:15pm

Here

edit: I just tried installing the IronPython2 package and changing the engine
(Brackets are the right way round)
You wouldn’t have another pack or there would be a rebarHookType
if you right click on the node then help you will have the source of the node

Cordially
christian.stan

REDO10 · May 1, 2023, 3:59pm

@christian.stan

Thanks for thoses informations

So you tested with IronPython2 and that’s works!!!..Pffff I’m completely lost!!

I’m using the following package but as you said it won’t change anything

Thanks.

christian.stan · May 1, 2023, 4:02pm

You have a Dynamo for rebar maybe you have a conflict with it
edit:
With Ironpython3 is good too

edit2:
the package i am using is from december 15
you use the one of August 28

cordially
christian.stan

REDO10 · May 1, 2023, 5:40pm

@christian.stan

I’ve romove Dynamo for rebar and tested again without result ( I also tested CPython3 without result)

Thanks.

christian.stan · May 1, 2023, 5:55pm

sorry for not being able to do better, the update of the package either (edit 2) at worst you put a conditional if (with the Id of the rebarhookType which changes your hookOrientation.Left to hookOrientation.Right) wobbly, I grant you that but hey it should work… .
Cordially
christian.stan

REDO10 · May 2, 2023, 8:59pm

@c.poupin @jacob.small @Daan

Any idea how to fix this issue?

Thanks.

jacob.small · May 2, 2023, 9:14pm

@REDO10 graph as it currently stands and an RVT to run it on?

REDO10 · May 2, 2023, 9:52pm

@jacob.small

Sorry I didn’t catch what you are trying to say…and which graph are you referencing to?

Thanks.

jacob.small · May 3, 2023, 12:13am

The graph you have built (your .dyn as it currently stands) and a sample rvt on which to run it (reproducing the problem you are having).

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