Center of gravity

Tekla Structures
Not version-specific
Tekla Structures
Environment
Not environment-specific

Contents

Purpose and description
System requirements
Installing Center of gravity
Using Center of gravity

  1. Center of gravity symbol
  2. Center of gravity dimensions
    1. Center of gravity rule editor
 

Purpose and description

This tool automatically creates a center of gravity symbol and dimensions from the drawing settings. So you can create a drawing from scratch that will include the center of gravity.

System requirements

Tekla Structures version: Not version specific
Environments: All

Installing Center of gravity

To install the extension:

  1. Download the Center of gravity dimensioning installer package from Tekla Warehouse. For more information see Downloading an application from Tekla Warehouse.
  2. Install the file package.
Note: From Tekla Structures 2017 SP5 and 2017i SP 1  this step is not needed.
  1. Import from Tekla Warehouse the Configuration file and insert it in a model.

Using Center of gravity

The center of gravity can be set from the drawing properties or view properties, so when a drawing is created you can choose in which views the center of gravity will be created e.g. top view.

Image
center_of_gravity_view_creation.png

  1.  Center of gravity symbol

To create the center of gravity symbol you do it from the part attributes by selecting
in the Custom presentation "CenterOfGravityCustomPresentation".
 
Image
center_of_gravity_custom_presentation.png

 
  • If you want to change the default center of gravity symbol you can do so by changing the symbol index 17 in the COG.sym file (located in your environment) .
  • We don't have the option of letting the user changing the symbol through the dialog.
  • So just make sure the COG.sym file contains your default center of gravity symbol that you will use in your projects.
  • The highlighted symbol on the left matrix is the one you would need to update.

Image
center_of_gravity_symbol.png

  1. Center of gravity dimensions

You can as well create the dimensions for the center of gravity in the dimensioning parameters.

Image
center_of_gravity_view_dimensioning.png
  • Note: From Tekla Structures 2017 SP5 and 2017i SP 1  the following step is not needed.
    • Remember to get the DimensioningConfiguration.xml file into your model or merge it into the one available in your environment, so the "Center of gravity" dimensioning option is available:

  1. Center of gravity rule editor
     
Select the Center of gravity rule editor dimensioning rules, the Edit rule button becomes active, press it to open the dialog:

Image
cog_rule_editor_form.png

 
FieldDescriptionDefault
Dimension attributesAttributes for creating the dimensions, All the dimensioning attributes are listed here.COG
Reference pointReference point for dimensioning creation.

The options are:

Origin - uses the origin point of the part.

Image
cog_origin_point.png


Start point - Uses the start point of the part. (it is the first point selected at creation )

Image
cog_start_point.png


Extrema - Uses the extrema point of the part.

Image
cog_extrema_point.png

 
Origin
Dimensions placingsSets the side to show the dimensions.

The options are:
Left - only the dimension on the left is created.

Right - only the dimension on the right is created.

Top - only the dimension on the top is created.

Bottom - only the dimension on the bottom is created.
Left and Bottom
 
  • In order to work as expected, attribute files from Center of gravity dimensioning rule editor must be used at Dimensioning rules => Properties.  
  • You can use existing files or you can create new ones. 
Image
cog_ex5.png

Example for attribute file usage

To ease your work already created attribute files could be used.

Image
cog_ex4.png


Image
cog_ex6.png




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