About 2D and 3D Section Display Components and Materials

2D and 3D section object consist of a number of display components which can be determined by materials.

When you assign materials to an object, you assign one material to each display component of an object. For example, you assign a wood material to the frame of a window and a glass component to the glass of a window.

When you create a 2D or 3D section object from building objects, the material assignments of the source objects are applied to the section. You do not assign a material directly to a 2D/3D section. The section takes its material assignments from the objects that are sectioned. For example if you create a section through a wall with a window, the section hatch you have defined in the glass, wood, and brick materials of the wall and the window are displayed in the section.

If you do not want to use the material display properties, but instead use those of the 2D or 3D section object, or the 2D section style, you can deactivate the material assignments in the display properties of the section or the section style.

Material Component Assignments

Material definitions consist of display components which correspond to component types of objects. For example, the Linework component of a material is used for all linework of objects in Plan view. The Surface Hatch component of a material is used to hatch all object surfaces in 3D model views and elevations.

The following table lists all section components plus information about the material components that determine them.

Note: Keep in mind that materials are not assigned directly to 2D section objects, but that the assignment of materials happens indirectly via the sectioned objects. For example, if a brick material has a surface hatch component with a red brick pattern, this surface hatch determines the display of the surface hatch in a brick wall. When you create a 2D section from that wall, the resulting section object will inherit the red brick pattern from the wall. When you change the material of the wall from brick to concrete, and then update the 2D section, it will now display with a grey concrete pattern.

2D Section Component	Material Component
Defining Line	2D Section/Elevation Linework or 3D Body.
Outer Shrinkwrap	No Material
Inner Shrinkwrap	No Material
Shrinkwrap Hatch	No Material
Surface Hatch Linework	Surface Hatch
Section Hatch Linework	Section Hatch
Hidden	No Material
Erased	No Material
Subdivision 1-10	2D Section/Elevation Linework or 3D Body.