Overview: In this lesson, you will learn how to edit composition plies in your BIM model.
After completing this lesson, you will be able to:
- Use the LevelOfDetail setting to display composition plies.
- Use the RenderCompositionMaterial setting to display render materials.
- Manipulate the composition plies.
Tutorial: How to extend a Ply
Click here to watch
The BIM Ply Editing function allows you to manipulate all the composition plies in your model. In BricsCAD, each drawing has settings stored inside to control the composition plies, called LOD (Level Of Detail), and the render materials, called RenderCompositionMaterial. These two settings can be turned on/off separately.
Composition plies and render materials
Composition plies display only when LevelOfDetail = 2 (high).
Building elements do not need to be selected, they will be automatically adjusted. When LevelOfDetail = 0 (low) the material definition of the solid is used.
To toggle the value of the Level of Detail user preference, click the icon in the ribbon under the Home tab or in the quad under the BIM tab:
For more information about this setting visit the article LevelOfDetail.
Render materials display only when RenderCompositionMaterial = 1 (on). The render material of each ply is defined in the 3D Render Material setting of the material definition.
To toggle the value of the RenderCompositionMaterial user preference, click the icon in the ribbon under the Home tab or in the quad under the BIM tab:
For more information about this command, visit the article RenderCompositionMaterial.
RenderCompositionMaterial = 0 (off)
RenderCompositionMaterial = 1 (on)
Note: Only when Visual Styles have their Face Settings / Material Display settings set to Materials and Textures (e.g. BIM, Modeling, and Realistic), a visual representation of materials is displayed. Composition plies are displayed in the model as well as render materials.
Note: If the render materials of the selected composition are not downloaded or the composition is incorrect, the entity will be displayed in red.
There are different combinations possible with LOD and RenderCompositionMaterials turned on or off.
LOD =0, RenderCompositionMaterials = 0
The material definition of the solid is used and no materials are displayed.
LOD =2, RenderCompositionMaterials = 0
The solid is subdivided into plies, no materials are displayed. When face detection is turned on, you can select the faces of different plies to push/pull for example.
LOD =0, RenderCompositionMaterials = 1
The material definition of a solid is used. The materials of the exterior and interior face are displayed and the material of the exterior layer will be wrapped around the object.
LOD =2, RenderCompositionMaterials = 1
The solid is subdivided into plies. Each ply will be displayed with its own material. When face detection is turned on, you can select the faces of different plies to push/pull for example.
Manipulating the composition plies
- Make sure the value of Level of Detail = 2 (High).
Place your cursor near the composition ply you want to edit and press the Tab key until the ply face (1) highlights.
Note: The highlighted ply face is displayed in the detected boundary color (default = 95).
Face detection must be enabled to do this.
Select Push/Pull from the Quad and drag the ply to a new position (2).
Note: Make sure DmPushPullSubtract = 1. This ensures that plies being push/pulled are subtracted from any of the other 3D solids they intersect.
Note: Make sure ESNAP is turned on to snap to the edge of a ply.
Procedure: Creating a rooftop detail
It is also possible to create more complex details with extra solids added apart from the existing compositions. As an example, a rooftop detail will be created, starting from a rooftop edge.
- Start with this roof-wall connection
Click the Face detection icon in the ribbon to enable face detection.
Turn on LOD to be able to select ply faces. Click the icon in the ribbon or type LevelOfDetail in the commandline, type 2 and press Enter.
Hover over the edge of the concrete ply of the floor slab and press Tab to select the face of the ply.
- Choose Push/Pull in the model tab of the Quad.
- Push/Pull the face to the next ply of the wall.
- To create a wall cap, select the top surface of the wall by pressing Tab and extrude the surface up for 50mm. The created cap isn't classified yet.
- Delete the part where the insulating building block will come. Hover over the surface of the supporting wall and the gypsum board and press tab to select the surface. Then Extrude till the ply of the wall cap.
Extrude the same surface again, now a new solid will be created.