> ## Comparing 3D Files

> AutoVue provides the ability to compare two 3D files or two sets of entities from the same file or different files and display color-coded comparative data. When you compare two files, AutoVue displays a Compare Tree and three windows, the first containing the base file, the second containing the file you compared the base against, and the third containing the comparison results.

> The Compare Tree displays the model’s hierarchy with a State column displaying different icons representing the results of the file comparison. The icons indicate if an model part has been added , modified , moved deleted .

> In the Comparison Result window, results are displayed in different colors to differentiate the results of the file comparison. The comparison options and corresponding colors are:

> Option | Color | Description
> --- | --- | ---
> View Additions | Green | Indicates that something has been added.
> View Deletions | Red | Indicates that something has been deleted.
> View Unchanged | Blue | Indicates that there is no change.

> To compare files:

> 1. View the base file.
> 2. From the Analysis menu, select Compare.

> The Open dialog box appears.

> 3. Enter the file name or browse to locate the file you want to compare with the current active file.
> 4. Click Open.

> AutoVue displays the Compare Tree and three windows. The first window displays the base file, the second displays the compare file, and the third displays the comparison results.

> 5. To view the properties of a modified or moved entity in the base file and in the compare file, select the modified or moved entity from the tree, then right-click and select Entity 1 Properties.

> The Entity Properties dialog box appears displaying the properties of the entity in the base file.

> See Entity Properties

> Select the entity again, then right-click and select Entity 2 Properties.

> The Entity Properties dialog box appears displaying the properties of the entity in the compare file.

> 6. To compare the results of the entity in the base file to the compare file, select the entity from tree, then right-click and select Compare Results.

> The Compare Results dialog box appears.

> To view the attribute differences, click Attributes.

> To view the transformation difference, click Transformation.

> Note: If there are no attribute or transformation differences, the buttons are disabled.

> 7. Click OK to close the Compare Results dialog box.
> 8. To exit Compare mode, from the File menu, select Exit Compare.

> The base file appears in the workspace.

> Note: From the AutoVue toolbar, you can also select Exit Compare .

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