Here i am using 2 reference planes to control the start and end of the roof extrusion.
Revit 2018 trim roof with plane.
Revit places a reference plane at the specified offset.
Trim levels tool works similarly to trim and extend tool of revit.
Get this revit file here.
Using the reference plane you can control the position of the extruded roof in relation to a level.
1 create another named ref plane in plan view so as to draw the roof profile roughly at end of roof image 1 2.
Reference plane creates a reference plane using drawing tools.
To cut a beam at a wall create a reference plane in the plane of the wall where you want the cut to occur.
Naming reference planes makes it easier to track their.
Select the reference plane.
Detailed review of reference planes beam and roof systems.
This method is worth learning so when plane moves everything goes with it.
With it you can easily trim or extend one or more levels to a boundary defined by grid reference plane or detail line.
Click modify tabgeometry panelcut drop down cut geometry.
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For example use cut geometry to cut a column to a certain height or to stop a beam at a wall.
Go to end view of roof elevation face on to new named ref plane select roof by extrusion the select new named ref plane from drop box.
Levels 2d extent will switch to.
Use the cut geometry tool to cut a structural member with a plane.
I have actually selected the left hand reference plane you can see that i have also named it roof start.
Trim extend level 3d.
Split element cuts an element such as a wall or line at a selected point.
Split face divides the face of an element into regions for application of different materials.
Trim extend to corner trims or extend one or more elements to form a corner.
Trim or extend level 3d extents to the reference grid reference plane or detail line as a boundary.
That is the vertical reference planes on the left and right hand side of the image.
