Grasshopper-Tekla Live Link

Tekla Structures
Not version-specific
Tekla Structures
Grasshopper

 

Image
UI_TS.png

Back to top

Introduction

The Grasshopper-Tekla live link enables algorithmic modelling for Tekla Structures using Rhino/Grasshopper. The link is a set of Grasshopper components that can create and interact with objects live in Tekla Structures.

Back to top

Demo Videos

Building Frame


 Double-Curved Roof


Concrete Bridge Deck Part 1 (Tekla Structures 2017 or newer)


Concrete Bridge Deck Part 2 (Tekla Structures 2017 or newer)

 

Back to top

Prerequisites

You need to have Rhino (download) and Tekla Structures installed on the same machine.

Grasshopper is included in the Rhino 6 and 7 install.

You can try out the full version of Rhino for free for 90 days.

 

Back to top

Setup

If you've already installed any version of the link and are doing an update or re-install, see the update section further down.

  1. Download the zip with the required files (GrasshopperTeklaLink.gha, GrasshopperTeklaLinkExample.gh) from Tekla Warehouse.

    • Make sure you download a package targeting the (installed) Tekla Structures version you'd like to work with

  2. Launch Tekla Structures and create a new model.

  3. Launch Grasshopper and drag the GrasshopperTeklaLink.gha onto the canvas to install the components. A new component tab labeled Tekla [version] should appear, as well as a menu labeled Tekla in the menu bar.

    If the Tekla tab doesn’t show up, the component file might be blocked as it’s downloaded from the internet. To unblock the file,
    • In Grasshopper, click File > Special Folders > Components Folder
    • Right-click GrasshopperTeklaLink.gha and click Properties
    • Under the General tab, click on the Unblock button, and click OK. (If you don’t see an Unblock button, the file is not blocked.)
    • Restart Rhino/Grasshopper. The Tekla tab should now be visible in Grasshopper.

       
  4. Open the TeklaGrasshopperLinkExample.gh file in Grasshopper.

    • The solution should run and generate some example objects in the Tekla model
    • If some objects aren’t showing up, you probably need to expand the work area and/or view depth

       

      Image
      TSModelExample.png

 

To update, re-install or install components for another Tekla Structures version:

  1. In Grasshopper, click File > Special Folders > Components Folder

  2. Close Grasshopper and Rhino, and replace the GrasshopperTeklaLink.gha in the Components Folder with the new file

  3. Launch Grasshopper again

    • If the Tekla tab doesn't show up, you need to unblock it as described in the previous section.

If the new file targets another Tekla Structures version, the components (including any already inserted ones) will now interact with the new Tekla version instead.

 


Frequently Asked Questions

See the Grasshopper-Tekla Link FAQ for answers to common issues.
 

 

Back to top

The Grasshopper Components

After installation, the components are visible on the Tekla component tab in Grasshopper.

 

Image
UI.png

 


Additionally there's a Tekla menu added to the Grasshopper top menu bar, with commands to enable/disable all Tekla components, recompute all Tekla components, delete Tekla objects etc. as well as a commands for setting the default Tekla attributes (like profiles) that are applied to generated objects.
 

 

Back to top

Important general notes about the components

  • Make sure you have a Tekla model open before opening Grasshopper or inserting any component. The components generate, modify and interact with objects live in Tekla Structures.

  • The link uses the units of the currently open Rhino Document for the geometrical inputs.

  • Select a component in Grasshopper to highlight the associated objects in Tekla Structures.

  • Double-click the icon of a component to re-run the component manually. This operation also re-generates any deleted members in Tekla Structures.

  • If you right-click an (object creating) component icon, there’s an option called Run in background which is set to true by default. This mode means the Tekla model is updated in the background while the Grasshopper UI remains responsive. When a solution is run in this mode, components that are currently processing objects in Tekla are marked with a spinner and the objets they generate will become available at the component outputs once they are ready.

  • To cut the link between a Grasshopper component and the Tekla objects it has generated, right-click the component and select Bake to Tekla. This will leave the object as-is in Tekla, and a copy of the object will be generated upon further modifications of the component input.

 

Back to top

Param Components

These components can be used to reference Tekla objects into Grasshopper.

  •  

    Image
    ParamPoint.png
     Tekla Point
    Pick a point in Tekla Structures to be used in Grasshopper. The picked point will be visible in Tekla as well as a construction point.
  •  

    Image
    ParamLine.png
     Tekla Line
    Pick a line in Tekla Structures to be used in Grasshopper. The picked line will be visible in Tekla as well, as a construction line.
     
  •  

    Image
    ParamBeam.png
     Beam
    Reference a beam from Tekla into Grasshopper.
  •  

    Image
    ParamPlate.png
     Plate
    Reference a plate from Tekla into Grasshopper.
  •  

    Image
    ParamItem.png
     Item
    Reference an item from Tekla into Grasshopper.
  •  

    Image
    ParamReinforcement.png
     Reinforcement
    Reference reinforcement from Tekla into Grasshopper.
  •  

    Image
    ParamComponent.png
     Component
    Reference a component from Tekla into Grasshopper.
  •  

    Image
    ParamModelObject.png
     Model Object
    Reference any model object from Tekla into Grasshopper.
     
  •  

    Image
    ParamControlPoint.png
     Construction Point
    Reference a construction point from Tekla into Grasshopper.
  •  

    Image
    ParamControlLine.png
     Construction Line
    Reference a construction line from Tekla into Grasshopper.
  •  

    Image
    ParamControlArc.png
     Construction Arc (Tekla Structures 2019 or newer)
    Reference a construction arc from Tekla into Grasshopper.
  •  

    Image
    ParamControlCircle.png
     Construction Circle
    Reference a construction circle from Tekla into Grasshopper.
  •  

    Image
    ParamControlPolycurve.png
     Construction Polycurve (Tekla Structures 2019 or newer)
    Reference a construction polycurve from Tekla into Grasshopper.
  •  

    Image
    ParamControlPlane.png
     Construction Plane
    Reference a construction plane from Tekla into Grasshopper.
     

Right-click these param components to open the context menu, where you find commands to set one or multiple objects or points in Tekla Structures. Grasshopper will be minimized and Tekla Structures will ask you to pick objects.

If the objects that are connected to a component have been moved in the model, you can double-click the component to update the state of the object in Grasshopper. The component will also update its output anytime Rhino/Grasshopper is restarted.

The components remember the set input between Grasshopper sessions.

For the construction object params, the referenced geometry will automatically be converted into corresponding Rhino geometry when plugged into other Grasshopper components. So e.g. a referenced Tekla Arc becomes a Rhino Arc in Grasshopper. Most other referenced object types can be analyzed with the 'Deconstruct' components, and the solid geometry can be transferred into Grasshopper with the 'Convert to Brep' and 'Convert to Mesh' components.

 

Back to top

Steel Components

  •  

    Image
    IconSteelBeam.png
     Beam
    Creates a steel beam along the provided curve or line. Right-click the component to set the maximum number of control points that will be used if a polybeam is created. 99 points is default. More points means greater accuracy but slower perfomance when updating.
  •  

    Image
    IconSteelBeam2Pt.png
     Beam 2Pt
    Creates a steel beam using the provided start and end point.
  •  

    Image
    SteelColumn.png
     Column
    Creates a steel column along the provided line. If the input is not a straight line in the Z direction, the resulting Tekla object is a beam.
  •  

    Image
    SteelPlate.png
     Plate
    Creates a steel plate outlined by the provided geometry. The boundary can be a point list, a simple surface, a rectangle, a circle, a polyline or a general curve. Right-click the component to set the maximum number of control points that will be used. 99 points is default. More points means greater accuracy but slower perfomance when updating.
  •  

    Image
    BentePlateFaces.png
     Bent Plate (Tekla Structures 2017 or newer)
    Creates a bent plate outlined by the provided list of boundaries and with the provided radius(es). The input needs to be a minimum of two boundaries to connect.
  •  

    Image
    LoftedPlate.png
     Lofted Plate (Tekla Structures 2019i or newer)
    Creates a lofted plate between the two input curves
    Note that the position can't be set for lofted plates in Tekla Structures (yet), thus the position input has no effect.
    The created lofted plates can be invalid for some input curves. This is a Tekla core limitation, i.e. you would get the same result if you create them manually from similar polycurves in Tekla Structures.
  •  

    Image
    SteelItem.png
     Item (Tekla Structures 2017 SP5, 2017i SP1 or newer)
    Creates a steel item based on the provided brep, mesh or surface geometry. Alternatively you can specify a profile (shape) that will be inserted to the Tekla model. The optional Line input can be used to specify the origin and direction of the item.

    When creating a Tekla item from a Rhino brep, the brep is meshed/triangulated internally by Rhino prior to being transfered. If you right-click the component icon/name, you can set the meshing parameters to Minimal, Coarse or Smooth. Default is Coarse. Minimal means faster model updates wherease Smooth means finer details but slower updates. If you're having trouble creating Items from Rhino breps or meshes, please see the FAQ. Note that brep/mesh conversion works better if you use Rhino 6.

    If you right-click the component icon/name, there's an option "Show internal lines in Tekla" which can be used to show the mesh of the item in Tekla.
  •  

    Image
    Assembly.png
     Assembly
    Creates an assembly from the provided input parts/objects.
    The Main Part input is optional, if left empty the main part will be the first part in the Objects input. Note that adding a part directly as the main part might make the assembly invalid e.g. if the part has connections.
    Parts will be added as sub-assemblies, except for the optional main part. To create single-level steel assemblies, use the Cast Unit component instead.

 

Back to top

Concrete Components

  •  

    Image
    ConcreteBeam.png
     Beam
    Creates a concrete beam along the provided curve or line. Right-click the component to set the maximum number of control points that will be used if a polybeam is created. 99 points is default. More points means greater accuracy but slower perfomance when updating.
  •  

    Image
    IconConcreteBeam2Pt.png
     Beam 2Pt
    Creates a concrete beam using the provided start and end point.
  •  

    Image
    ConcreteColumn.png
     Column
    Creates a concrete column along the provided line. If the input is not a straight line in the Z direction, the resulting Tekla object is a beam.
  •  

    Image
    ConcretePanel.png
     Panel
    Creates a concrete panel along the provided curve or line.
  •  

    Image
    ConcreteSlab.png
     Slab
    Creates a concrete slab outlined by the provided geometry. The boundary can be a point list, a simple surface, a rectangle, a circle, a polyline or a general curve. Right-click the component to set the maximum number of control points that will be used. 99 points is default. More points means greater accuracy but slower perfomance when updating.
  •  

    Image
    LoftedSlab.png
     Lofted Slab (Tekla Structures 2019i or newer)
    Creates a lofted concrete slab between the two input curves
    Note that the position can't be set for lofted slabs in Tekla Structures (yet), thus the position input has no effect.
    The created lofted slabs can be invalid for some input curves. This is a Tekla core limitation, i.e. you would get the same result if you create them manually from similar polycurves in Tekla Structures.
  •  

    Image
    FootingPadGround.png
     Pad Footing
    Creates a concrete pad footing along the provided curve or line.
  •  

    Image
    FootingStripGround.png
     Strip Footing
    Creates a concrete strip footing along the provided curve or line.
  •  

    Image
    ConcreteItem.png
     Item (Tekla Structures 2017 SP5, 2017i SP1 or newer)
    Creates a concrete item based on the provided brep, mesh or surface geometry. Alternatively you can specify a profile (shape) that will be inserted to the Tekla model. The optional Line input can be used to specify the origin and direction of the item.

    When creating a Tekla item from a Rhino brep, the brep is meshed/triangulated internally by Rhino prior to being transfered. If you right-click the component icon/name, you can set the meshing parameters to Minimal, Coarse or Smooth. Default is Coarse. Minimal means faster model updates wherease Smooth means finer details but slower updates. If you're having trouble creating Items from Rhino breps or meshes, please see the FAQ. Note that brep/mesh conversion works better if you use Rhino 6.If you right-click the component icon/name, there's an option "Show internal lines in Tekla" which can be used to show the mesh of the item in Tekla.
  •  

    Image
    IconBeamExtruder.png
     Extrude Beams
    Creates beams between the points in the provided point list, so that the end point of one beam is the start point of the next one. Fittings are automatically applied between each beam pair. If the start and end points are the same, a fitting will be added there as well.
     
  • In addition to the geometrical inputs, each part creating component above has the following optional inputs:

    • Profile: The part profile as a string. You can use the Profile Catalog component to select a profile from the Tekla Profile catalog.

    • Attributes: The part attributes. Use the Part Attributes component to construct the input object.

    • Position: The part position. Use the Position component to construct the input object, or use the syntax

      PLANE_ENUM(PLANE_OFFSET), ROTATION_ENUM(ROTATION_OFFSET), DEPTH_ENUM(DEPTH_OFFSET)

      Syntax example: RIGHT(1200), TOP(45.0), BEHIND. See more examples by hovering the Position input.

    • Numbering: The part numbering attributes. Use the Numbering component to construct the input object.

    • Deforming (available for Beam type objects): The deforming and end offset attributes. Use the Deforming component to construct the input object.
       

  •  

    Image
    Reinforcement.png
     Rebar
    Creates a single bar.

    This component has a right-click option "Remove while inputs are being modified". This mode means the inserted bars in Tekla are removed while part and point inputs are being modified, to allow for quicker updates of the model. Note: In this mode, the bars will get new GUIDs after each input modification.
    • Part: The tekla part to reinforce.

    • Shape: The shape of the bar.

    • Attributes: The rebar attributes. Use the Rebar Attributes component to construct the input object. Alternatively you can connect the Reinforcement Catalog component to this input directly, or even provide just a size as a string or a number.

    • Hook: The hook attributes for the bar. Use the Hook component to construct the input object, or alternatively the Hooks component if you want to use different hooks for the bar ends.

    • Cover: The cover thicknesses and offsets for the bar. Use the Cover component to construct the input object.

  •  

    Image
    ReinforcementSet.png
     Rebar Group
    Creates a bar group in a part.
    • Part: The tekla part to reinforce.

    • Shape: The shape of the bars.

      • To create a tapered bar group, remove the grafting from the shape input and provide multiple shapes as a (non-grafted) list.

      • To create a curved bar group, the shape input should be a single arc (to create several curved groups, provide a grafted list of arcs).

      • To create a circular bar group, the shape input should be a single circle (to create several circular groups, provide a grafted list of circles).

    • Range: The range of the bar group. Normally the input is a line.

      • If the shape input is a list of shapes (forming a tapered group), you don't need to have a range input.

      • If the range input is a circle or arc, and the shape input is a single curve (or the shape input is grafted), the rebar group type will be tapered curved.

      • If the range input is a curve, and the shape input is a single curve (or the shape input is grafted), the shape curve will be copied along the range and the group type will be tapered.

    • Attributes: The rebar attributes. Use the Rebar Attributes component to construct the input object. Alternatively, you can connect the Reinforcement Catalog component directly to this input, or even provide just the size as a string or a number.

    • Hook: The hook attributes for the bar. Use the Hook Attributes component to construct the input object, or alternatively the Hooks Attributes component if you want to use different hooks for the bar ends.

    • Cover: The cover thicknesses and offsets for the bar. Use the Cover Attributes component to construct the input object.

    • Group: The group type (e.g. spiral), spacing and exclude type attributes. Use the Group Attributes component to construct the input object.
       

  •  

    Image
    CastUnit.png
     Cast Unit
    Creates a cast unit from the provided input parts/objects.
    The Main Part input is optional, if left empty the main part will be the first part in the Objects input. Note that adding a part directly as the main part might make the cast unit invalid e.g. if the part has connections.
    This component can be used to create single-level steel assemblies as well.

 

Back to top

Edit Components

  •  

    Image
    CutPartWithLine.png
     Plane Cut
    Cuts a part with a plane.
  •  

    Image
    CutPartWithAnotherPart.png
     Part Cut
    Cuts a part with another part. Optionally the cutting part can be deleted after the cut has been made.
  •  

    Image
    FitPartEnd.png
     Fitting
    Fits the end of the part to a plane.
     
  •  

    Image
    Component.png
     Component
    Creates a connection, seam, detail, custom part or plugin.

    This component has a right-click option "Remove while inputs are being modified". This mode means the inserted components in Tekla are removed while part and point inputs are being modified, to allow for quicker updates of the model. Note: In this mode, the components will get new GUIDs after each input modification. This option is checked by default on newly inserted components.
    • Name: Use the Component Catalog component to select a component type from the model. Once a component is selcted, the inputs it requires will become visible.

    • Attribute File: Enter the name of the attribute preset

    • Attributes: Set individual component attributes. Syntax example:

          MainBarGrade "Undefined"
          nSideBars 4
          StirrupCover -240.0

      The standard way to find out the names of the component attributes is to fill in values that you recognize in the component dialog in Tekla Structures, save a preset file and then find the attribute names from that file by looking for your values. Alternatively you can use the extension Component Variable Importer to list the attributes.

    • Main Part, Secondary Parts and Points: Connect the required inputs as you would pick the input in the model (e.g. for a Detail, connect a main part and a point). Some components (plugins) might have a more complicated input sequence, in that case you need to use the Component Input component to construct your input.

    • Component Input: Connect the output of a Component Input component to handle complicated input sequences for plugins. If you use this option, the Main Part, Secondary Part and Points inputs will be ignored.

  •  

    Image
    ControlObject.png
     Construction Object
    Creates a construction object in Tekla Structures.
    The object type in Tekla depends on the input type, i.e.
            Point -> Construction Point
            Line -> Construction Line
            Circle -> Construction Circle
            Arc -> Construction Arc (or Construction Circle if the arc is a complete circle) [2019+ only]
            Curve -> Construction Polycuve (as a polyline with arcs) [2019+ only]
            Plane or Rectangle -> Construction Plane (a rectangle creates a construction plane of a specific size)
  •  

    Image
    IconGrid.png
    Grid
    Creates a standard grid with gridlines through each of the input points in the list. Duplicated values on any axis are filtered out.
    • To create several grids, remove the flattening of the input and provide a list of lists of points.

    • Set the grid labels using the same syntax as in the Tekla Structures dialog for the grid.

  •  

    Image
    IconPoints.png
     Point
    Inserts a point in Tekla Structures. The point type can either be ControlPoint (a Tekla control point object) or BeamPoint (a Beam-type object that has higher visibility from a distance - can be used if you don't need to snap to the point). When the component is deleted, the points are removed.
  •  

    Image
    SurfaceTreatmentPartFace.png
     Surface Treatment
    Creates a surface treatment with the given boundary on a part face in Tekla Structures.
    Note that the side of the face that the surface treatment is applied to will depend on the orientation of the boundary input.

 

Back to top

Attributes Components

  •  

    Image
    IconProfile.png
     Profile Catalog
    Outputs a profile string. Double-click the component icon to open a dialog to select the profile from the Tekla Profile catalog.
  •  

    Image
    IconMaterial.png
     Material Catalog
    Outputs a material string. Double-click the component icon to open a dialog to select the material from the Tekla Material catalog.
  •  

    Image
    IconComponentCatalog4.png
     Component Catalog
    Outputs a string representing a Tekla component. Double-click the component icon to open a dialog to select the component from the Tekla Component catalog.
  •  

    Image
    IconShape.png
     Shape Catalog
    Outputs a shape string that can be used as a profile for the Item components. Double-click the component icon to open a dialog to select the shape from the Tekla Shape catalog. Note that a shape is not required if you are generating the item directly from geometry input.
  •  

    Image
    IconRebarCatalog.png
     Reinforcement Catalog
    Outputs a string reprecenting a rebar size and grade that can be used as size and grade input for the Rebar components (Attributes input) or for the Rebar Attributes component (Size or Grade input). Double-click the component icon to open a dialog to select the bar size and grade from the Tekla Reinforcement catalog.
     
  •  

    Image
    IconProperties.png
     Part Attributes
    • Set the Name, Profile, Material, Finish, Class, Phase and User-defined attributes of the part.

    • You can set the part Profile either in this component or directly in the create part component. If the profile is set in both locations, the create part component’s profile is used.

    • User-defined attributes are input as a text string. Syntax example:

          MyStringUDA   "my user text"
          MyIntegerUDA   2
          MyFloatUDA   12.5

      Attributes that are separated with a newline like above (or alternatively with a semicolon) will be assigned to the same part. You can put attributes in a list instead to sequentially assign them to different parts. Note that if you're using a Panel component, multiline data on will keep the attributes as a single string (same part) whereas off means the output will be a list (separate parts).

  •  

    Image
    IconPosition.png
    Position
    Set the position of the part. Can be used on beams, columns and plates/slabs.
  •  

    Image
    IconNumbering.png
     Numbering
    Set the Numbering attributes for the part, as well as the Cast Unit Type and Pour Phase (the last ones take effect only on concrete objects).
  •  

    Image
    IconDeforming.png
     Deforming
    Set the Deforming attributes for the part (beam type object), including Angle, Cambering, Shortening and End offsets.
     
  •  

    Image
    IconRebarAttributes.png
     Rebar Attributes
    Set the Name, Size, Grade, Radius, Class, Numbering attributes, Phase and User-defined attributes of the bar or bar group.

    Size and Grade are text inputs. You can also set them (and the Radius) using the Rebar Catalog component connected to either input. Text inputs will override the Rebar Catalog input if both are used.

    User-defined attributes are input as a text string. Syntax example:

        MyStringUDA   "my user text"
        MyIntegerUDA   2
        MyFloatUDA   12.5

    Attributes that are separated with a newline like above (or alternatively with a semicolon) will be assigned to the same part. You can put attributes in a list instead to sequentially assign them to different parts. Note that if you're using a Panel component, multiline data on will keep the attributes as a single string (same part) whereas off means the output will be a list (separate parts).
  •  

    Image
    IconRebarHook.png
     Hook
    Set the Hook attributes of the bar or bar group. The same hook attributes will be used for both ends.
  •  

    Image
    IconRebarHooks.png
     Hooks
    Set the Hook attributes of the bar or bar group. The ends can have different hooks.
  •  

    Image
    IconRebarCover.png
     Cover
    Set the Cover thicknesses and offsets of the bar or bar group.
  •  

    Image
    IconRebarGroup.png
     Group
    Set the Spacing and Exclude attributes of the bar group.
    • The Number of Bars input will take effect when the spacing type is Exact Number, otherwise the Spacing values are used to distribute the bars.

    • The Spiral input can be used to enable creation of spiral bars.
       

  •  

    Image
    IconUDA.png
     Construct UDA
    Construct UDA input strings for the Part Attributes and Rebar Attributes components.
    • Inputs are the attribute name, the attribute value and the attribute type (string, int or float). Per default the attribute type is detected automatically.

    • If several attribute names and/or values are provided, the component can either combine them into a single output (for setting all attributes of the same part) or output them separately in a list (for setting different attributes or values for different parts). Right-click the component to change the output mode of the component from the context menu.

    • The component can be used to construct Attributes input for the Component component as well.

  •  

    Image
    CreateProfile.png
    Create Profile
    Creates a fixed Tekla profile from a curve/outline and adds it to the Tekla Profile Catalog.
    • By default, the profile origin is the center of the outline bounding box. Optionally you can provide your own origin point or plane (for controlling the profile rotation).

    • This component is fairly slow as it triggers all kinds of macros in Tekla Structures, and is thus not suitable for continous updating with e.g. a slider. A Data Dam component can be used at the input to control when the component/profile gets updated.

  •  

    Image
    CreateShape.png
    Create Shape
    Creates a Tekla shape from a brep or mesh and adds it to the Tekla Shape Catalog, replacing any existing shape with the same name.
    • The Line input accepts a point or line to set the item origin/insertion point. if a line is provided, it will determine the item rotation as well.

    • If another shape in the Shape Catalog uses the exact same geometry as the new shape, the shape can't be added and an error message is shown. To override this there's a right-click option for the component called "Replace similar shapes". Enabling this option means that any existing shapes with the same geometry will be removed from the shape catalog. If there are items in the model that use the removed shape, they will be using the new shape instead (i.e. the shape name will be updated for these items, but the geometry stays the same).

  •  

    Image
    IconComponentInput.png
    Component Input
    Create arbitrary input for Tekla plugins from Tekla objects, points and polygons.

    The component uses a variable parameter interface, so zoom in on the component to add more inputs depending on what sequence of inputs the Tekla plugin requires. Each input can be a single point/object, or a list of points/objects.

    Note that the order and type of the inputs might be different from what you would pick when inserting the plugin manually in Tekla, depending on how the plugin has been implemented. To find out the correct input sequence, you can reference in an already inserted Tekla plugin from the Tekla model and deconstruct it in Grasshopper using the "Deconstruct Component" component. The "Deconstruct" component will show you the input objects as well as the input types of the referenced Tekla plugin.
  •  

    Image
    IconDeforming.png
    Beam Rotation
    Calculates the required beam or column rotation angle based on the beam axis and desired up-vector. Plug the output rotation angle of this component into the Rotation input of the Position component.

 

Back to top

Extract Components

  •  

    Image
    DeconstructBeam.png
     Deconstruct Beam
    Deconstruct a Beam to get its main (poly-)line, type, profile and other attributes.
  •  

    Image
    DeconstructPlate.png
     Deconstruct Plate or Slab
    Deconstruct a Plate to get its boundary, profile and other attributes.
  •  

    Image
    DeconstructItem.png
     Deconstruct Item
    Deconstruct an Item to get its shape (as a mesh), input line, shape profile and other attributes.
  •  

    Image
    DeconstructComponent.png
     Deconstruct Component
    Deconstruct a Component to get its name and UI description as well as attributes, created child objects and information about the inputs (i.e. Tekla objects and points) of the component.
    • The input information can be useful when trying to determine the correct input sequence for inserting a complicated Tekla component (plugin) from Grasshopper.

  •  

    Image
    DeconstructAssembly.png
     Deconstruct Assembly
    Deconstruct an assembly or cast unit into the objects it contains.
  • Notes about the Extract components

    • Some outputs (Attributes, Position, Numbering, Deforming, Type) will only be calulated in case they are connected to another component (can be a Panel). This is to speed up computiation by avoiding extraction of unnecessary information.

      • Once the outputs have been connected, double-click the Deconstruct component to re-run it and calculate the values.

      • This means you can't preview output values by hovering the output, unless it's connected to something.

    • Right-click the input node of an input component to open the context menu where you can set one or multiple objects or points in Tekla Structures. Grasshopper will be minimized and Tekla Structures will ask you to pick objects. Or use the Param components to reference objects from Tekla Structures.

    • If the objects that are connected to a Deconstruct component have been moved in the model, you can double-click the component to update its output. The component will also update its output anytime Rhino/Grasshopper is restarted.

 

  •  

    Image
    IconExpandAttributes.png
     Expand Part Attributes
    Get access to the attributes of a Part Attributes object individually.
  •  

    Image
    IconExpandPosition.png
     Expand Position
    Get access to the attributes of a Position object individually.
  •  

    Image
    IconExpandNumbering.png
     Expand Numbering Attributes
    Get access to the attributes of a Numbering Attributes object individually.
  •  

    Image
    IconExpandDeforming.png
     Expand Deforming Attributes
    Get access to the attributes of a Deforming Attributes object individually.
  •  

    Image
    IconExpandUDA.png
     Expand UDAs
    Parse a string representing user-defined attributes or component attributes into the names, values and types of the attributes.
     
  •  

    Image
    IconGetAllUDAs.png
     Get All UDAs
    Read all user-defined attributes of any model object.
    • If used on a Tekla component, it will return the component attribute values from the component as well.

  •  

    Image
    IconGetUDA.png
    Get UDA Value
    Read the value of any specified user-defined attribute of any model object.
    • Inputs are the model object, the attribute name and the attribute type (string, int or float). Per default the attribute type is detected automatically.
    • If used on a Tekla component, it will return component attribute values from the component as well.

  •  

    Image
    IconGetReportProperty.png
    Get Report Property
    Read the value of a Report property of any model object.
  •  

    Image
    IconGetAssembly.png
     Get Assembly
    Get the assembly or cast unit that a model object belongs to.
     
  •  

    Image
    ModelObjectBrep.png
     Convert to Brep
    Converts the Tekla Structures model object to a Brep in Rhino (if the object has a physical representation that makes sense).
  •  

    Image
    ModelObjectMesh.png
     Convert to Mesh
    Converts the Tekla Structures model object to a Mesh in Rhino (if the object has a physical representation that makes sense). This is much faster than the Convert to Brep component, but occasionally might be missing some faces if there are holes in the object.
  •  

    Image
    ExtractProfile.png
     Profile Contour
    Get the outline and holes of a Tekla profile.
    • The Profile input is the profile name as a string, and can come from a panel, from the Profile Catalog component or from the profile output of a Get Beam component.

    • By befault the profile curves appears around global origo. Optionally the Plane input accepts a plane or a curve onto which the profile outline will be transformed. In case of a curve, the target plane is the plane perpendicular to the start point of the curve.

    • The Position input can be used to set the position of the profile relative to the plane origo. Use the Position component to create the input.

    • Tip: Use the Surface Split component if you want to combine the outputs to a surface with holes.

 

Back to top

Modify Components

  • Image
    IconSetUDA.png
     Set UDAs
    Set user-defined attributes for any model object.
    • To easily remove any UDA, use the 'Construct UDA' component to create UDAs using an empty string as the input value, then connect the output of 'Construct UDA' to this component.
  • Image
    IconSetComponentAttribute.png
     Set (Component) Attributes
    Set attributes of an existing Tekla component like a connection, detail, seam, custom part or plugin.

 

 

  • If working with concrete and things seem sluggish, disable pour management in Tekla Structures (set XS_ENABLE_POUR_MANAGEMENT to FALSE) for improved performance when modifying geometry.
Back to top

Limitations

  • Bolts and welds cannot be inserted from Grasshopper using these components, other than as part of a Tekla component or plugin.

  • Complex shapes and surfaces from Rhino/Grasshopper can be transfered as items in Tekla Structures 2017 SP5, 2017i  SP1 or newer only. It is not possible to enable support for items in earlier Tekla versions. Same limitations apply to bent plates, lofted slabs and plates and certain construction objects that are not available in all previous versions.

Back to top
Was this helpful?