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The workplane created by a 2D projection is positioned in the same way as the projecting plane of the selected 2D projection. For example, if the projecting direction is defined by a body face, then the workplane will lie on this face. If the projecting direction was defined by a section, then the workplane will lie in the plane of the section, etc. Such construction technique allows creating, for example, workplanes parallel to the plane of an arbitrary section, whose orientation in the space is different from any other body faces or any existing workplanes.

To create a workplane by a 2D projection, just select the desired projection while in the workplane creation command. The created workplane is placed on the same page of the 2D drawing as the selected projection. The origin of the coordinate system of such plane is not defined explicitly. It is assigned by the system automatically as coinciding with the origin of the drawing page containing the 2D projection.

To create such workplane, select the option in the main command automenu. The following actions become accessible as a result:

       <J>        Construct Workplane based on 2D Projection        

       <B>        Define Workplane borders        

The 2D projection to use for the workplane creation is selected by clicking in the 2D window while the option is active. After selecting the 2D projection, a rectangle is displayed on the current page, defining the borders of the workplane being created.

The display of such workplane in the 3D view is controlled by the respective parameter in the operation settings.

The workplane borders are set by the system. If necessary, those can be redefined using the option . The workplane creation is finalized by pressing .