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How to Apply A Rule based Filter



In this example the filter will be used to highlight external double doors.


1. To Apply a filter, first you must either:

a. Have a filter available to select.

b. Create a filter. (see How to Create A Rule Based Filter)


2. Select a view from the Project Browser that you will apply the filter to.



3. Make sure you have a filter available then open the Visibility Graphics Override dialogue box either by:


a. Navigating to the View Tab, Graphics Panel then click the "Visibility/Graphics" button.


b. Using the “VG” or “VV” keyboard shortcuts


4. Select the "Filters" heading from within the visibility graphics overrides dialogue box on the right hand side, then click on the “Add” button.


Once activated, the Add filters dialogue box will show.


5. You will be prompted to select one of the existing filters to insert into the model view. Choose a Rule based filter and click "OK" to confirm.



The filter will now be available to use in the current view.


6. To change the appearance settings for the filtered object, Click the word “Override” beneath the setting you want to modify.


Note: If you cant see the word "Override", click on the name of the filter and it will highlight the filter and reveal the override buttons


Adjust the appearance setting for the filter using the "Projection/Surface" and "Cut" Line and Pattern overrides.

  • For objects that will be cut through in view, change the appearance settings for Cut Lines (Outlines) or Cut Pattern (Fill pattern)

  • For objects where you see the surface of objects in view, change the Projection/Surface Lines and Pattern.

When you choose the "Cut" or "Projection/Surface" override for Lines, a "Line Graphics" dialogue box will appear.


Here you can change:

a. The Pattern.


Choose a line pattern from the selection of line types available.


The ellipsis (three dots) next to the pattern selection box opens up the Line patterns dialogue box. You can create new, modify existing or delete line patterns from here.


b. The Colour.


Click on the box next to color and the Color dialogue box appears.


Choose a colour then click "OK" to confirm.


Note: To remove the colour override, click the “No Override” button to revert it back to the default setting.


c. The Line weight


Choose a line weight override or accept defaults by selecting “No override”.


7. Once you have made your modifications, click "OK" to confirm the settings, or "Clear Overrides" to discard the changes.



When you choose the "Cut" or "Projection/Surface" override for Patterns, a "Fill Pattern Graphics" dialogue box appears.



Here you can change:


a. The Foreground/Background Visibility


Choose whether or not you want the foreground/Background pattern to show in the view or not.


b. Foreground/Background Pattern


Choose a fill pattern from the selection of patterns available.


The ellipsis (three dots) next to the pattern selection box opens up the "Fill Patterns" dialogue box.


You can modify, create new, duplicate existing or delete Fill patterns from here.



c. Foreground/Background Color

Choose a colour then click "OK" to confirm.


Note: The modification settings for Foreground/Background are the same.


Note: If you choose a pattern and colour, you will see a preview of the line colour and pattern appearance before you confirm the settings.


9. Once you have made your modifications click "OK" to confirm the settings, or "Clear Overrides" to discard the changes.



10. You will see the new overrides shown as a preview beneath the heading.


The same "Lines" settings have been applied to both "Projection/Surface" and "Cut" Lines as shown below.



11. Once you are happy with the changes, click "OK"

In the model window you will notice that any objects that meet the filter criteria will take on the appearance settings applied in the filter.


Note: You can disable the filter in the view and keep the filter properties by un-checking the “Enable Filter” box.

This will allow you to turn off the filter effects.


Note: To Hide the visibility of the filtered elements you can un-check the "Visibility" box.

This will hide in view, any objects that meet the criteria of the filter.


Note: You can set the filter to show semi transparent in the view by checking the “Halftone” box.

This will fade the elements in the view.


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