The Architectural Rafters on Open Eaves Dialog Box

Select the architectural rafters in the dialog box. You can select different rafters for side eaves, gable eaves and corners.

Dialog Box Options

Presets

Select one of the presets from the list in the top left corner of the dialog box. If necessary, you can still edit the rafter cross section and other parameters.

When you add architectural rafters to a roof, the program will convert the frame layer of the roof into a surface model. You can restore the frame layer by selecting Closed Eaves from the presets. This selection will clear all fields in the dialog box. Do not select any parameters for eave rafters.

The presets are stored in the component library ../custom/complibs/open_eaves.

Editing the Architectural Rafters Library

Eave / Gable / Corner eave

The parameters are divided into different tabs. Rafters have the following common parameters:

• Cross section - Select the cross section of the rafter from the profile library by clicking the button.

  Piece Properties

• Spacing - Enter the desired value in the text field. If you enable the Even parameter, the rafters are placed on the eaves at an even spacing, with the spacing as close to the specified value as possible.

• Bevel length - Enter the value (L) in the text field. The length is measured from the end of the rafter. Alternatively, you can define the bevel's distance from the surface of the wall's exterior siding by entering the following formula in the text field:

  #SIDING#-D, where D is the distance from the siding. For example, #SIDING#-50.

  

• Bevel width - Enter the value (W) in the text field.

  

• Even - When this checkbox is empty, the rafters are placed on the eave according to the value entered in the Spacing field. When the checkbox is ticked, the rafters are placed on the eaves at an even spacing, with the spacing as close to the specified value as possible.

• Surface Prop. - Select the category which determines the rendering material of the rafters.

  Rendering Materials in a Building Model

Eave

You can also select the following parameters for side eaves:

• Full length - When this checkbox is empty, only the rafter sections extending outside walls are modeled.

  

  When the checkbox is ticked, the side eaves rafters are modeled all the way to the ridge of the roof. Gable eaves rafters reach the sides of the side eaves rafters.

  

Gable

You can also select the following parameters for gable eaves:

• Ridge beam - Tick this checkbox when you wish to add a rafter (A) to the ridge of a roof. A ridge beam has the same properties as the gable eaves rafters.

  

Corner eave

In addition, select one of the following for the corner rafters:

• On all corners - Corner rafters are added to all corners of a slope, including 90-degree corners.

• Only on corners other than 90 deg - Corner rafters are added to all corners except 90-degree corners.

  

• No corner rafters - Corner rafters are not added.

Pick

You can select the parameters of architectural rafters already added to the building by clicking the Pick button. Click a roof in the drawing or in the model. The dialog box reopens, and you can further edit the parameters, if necessary.

Preview Image

The preview image shows the architectural rafters for the side and gable eaves.

Adding Architectural Rafters to an Open Eave
Restoring the Frame Layer of a Roof