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Dimensionings and annotations can be set in the project parametrically, thus are available in PARTdataManager for the 2D derivation and are transferred to the CAD system during the export.

Example:

Horizontal, vertical and parallel dimensioning

Radial dimensioning

Angular dimensioning

Annotations / Position numbers for list of material

The dimensionings are created and displayed directly in the 3D view of PARTdataManager.

The user interface is a docking window. The docking window itself consists of two dialog areas:

In the upper dialog area the IDs of all dimensionings of the loaded part are listed (AUTO-1000, AUTO-1001, AUTO-1002 etc.).

When clicking on an ID the respective view is loaded in the 3D view and the dimensioning is marked in green. Conversely, when clicking on a dimensioning in the 3D view the respective line is marked in the list of IDs on the right side.

Listing of all existing dimensionings of a part
- Dark gray background
  
  The dimensioning currently displayed in the 3D view
- Bold font
  
  The dimensioning has been changed. In this case an icon is displayed in addition.
- Gray font color
  
  Gray font color is displayed in the following cases:
  - No view selected
  - Set condition, which the currently loaded part doesn't meet.
  - A dimensioning (e.g. distance, angle, etc.) is smaller than the set Accuracy.
As soon as all Mandatory parameters are set, the dimensioning is displayed in the 3D view.
When a certain dimensioning is selected, then in the lower dialog area, all parameters of this dimensioning are listed, namely separated in Mandatory parameters and Optional parameters. Here, parameters can be set or changed. Changes become visible in the 3D view at once (if the mandatory parameters are set).

You can find detailed information on the mandatory parameters in the single chapters of the dimensioning types. Detailed information on the optional parameters can be found in an own chapter Section 8.4.1.7, “ Optional parameters ”.
Changes of values are signalized by an Undo icon , once in the list of dimensionings in the upper dialog area and once at the single parameters. So you can either undo all parameters of a dimensioning or single ones.

The Undo icon is displayed as long as you did not click on the button Save changes . In this case there is no Undo possible anymore.
On the left side of the ID list you have the following buttons available:
- Create new dimension
  
  When clicking on the button Create new dimension the dialog box Create new dimension opens.
  
  In the list field, under Choose dimension type select the desired option:
  - HORIZONTAL
  - VERTICAL
  - PARALLEL
  - RADIAL
  - ANGLE
  - ANNOTATION
  - PART-ANNOTATION
  After confirmation by clicking on OK the dialog area with the respective parameters is opened.
- Duplicate dimension
  
  –> A copy of the dimensioning selected in the list is created.
- Save changes
  
  –> Changes are saved in the file customdimensions.txt.
  
  As long as you do not click on the button Save changes , at the ID line above and at each changed parameter an icon is displayed. Clicking on the icon you can undo the respective action.
  
  If the changes have been saved no undo is possible anymore.
- Delete selected dimension
  
  –> The selected dimensioning is removed from the list; however, it can be refreshed again via button Refresh contents . Not before the button Save changes is clicked, deleting is completed and there is no "Undo" possible anymore.
- Refresh contents
  
  –> If changes have been made directly in the file customdimensions.txt, the user interface should be refreshed.

Preconditions

Possibly at first set the needed insertion points

Since the measuring points reference to connection points, they must either already be available within the part or specifically set.

Create file to save the dimensioning parameters

Create a file customdimensions.txt.

	Note
	If the file is already available from earlier versions, this will be used further on and existing data will be read from there.

Simply put the file beside the files to be dimensioned.

In this file all dimensioning parameters are saved.

Reference file for dimensioning parameters

In the assembly configuration project file (*asmcfg.prj) and in the assembly template project file (*asmsbl.prj) create the key CUSTOMDIMENSIONS.

Key value is the name of the created file, where the dimensioning parameters are saved.
```
CUSTOMDIMENSIONS=customdimensions.txt 
```

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8.4.1. 2D derivation: Automatic dimensioning