The tail is the low point and the head is the high point.
Modifying points in revit for roof plan.
Make sure define slope is inactive and that the arrow lies on the boundaries.
This video shows you how to add a split line and a point to a flat roof so that you can edit the roof to allow for drainage channels gulleys.
Edit the roof sketch.
Use the modify sub elements button to select your newly placed points.
Select your flat roof press the modify sub elements button that appears.
In the example below we add a bunch of points and change their relative height with modify sub elements tool.
If you want to change the position of the roof use the properties palette to edit the base level and offset properties to change the position of the reference plane.
Select the linework tool in the view panel on the home ribbon.
Add point or split line if better suited creates points at intersections place your new points as required.
Draw the arrow then click it and change the properties to select the right levels and offsets.
We could of course just draw these on the appropriate floor plan views using detail lines which would certainly get the job done.
If you found t.
If you select relative new points will be.
Select the floor or roof to modify.
This makes the roof line visible in the plan view but the lines appear as solid lines.
This create an uni directional slope parallel to the arrow.
The elevation edit box displays on the options bar with a relative check box next to it.
Select the desired linetype from the line style type selector.
Revit displays the modify linework contextual ribbon.
To use this do the following.
Add a negative value to the middle points and a slope is created.
Some typical scenarios are the include the outline of the perimeter of the roof the outline of an entrance canopy roof light positions etc.
Click modify floors tabshape editing paneladd point.
The points are used by the shape modification tools to change the element geometry.
Add a negative value to the middle points and a slope is created.