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Table Of Contents
Chapter 1 Using the Grading Commands
48
AutoCAD Editing Commands and the
Grading Object
The following table lists AutoCAD command behavior in relation to the grading object.
AutoCAD Editing Commands and the Grading Object
Command Behavior
Explode
The grading object is exploded into 3D polyline entities. The elevations of the polylines match those of
the grading object. The linetype and color of the resultant entities are as set in the Appearance tab in the
grading properties. The layer of the entities is the layer that the grading object resided on when
exploded.
Projection lines are converted to 3D polylines, each consisting of two vertices, one vertex at the footprint
and one at the daylight line. The daylight line is converted to a 3D polyline. The daylight points become
the vertices of the new 3D polyline. The daylight lines are broken at the change between cut and fill. The
footprint is converted to a continuous 3D polyline. Each vertex coincides with the vertex of a projection
line. On radial corners, only the footprint vertex is used. On arcs, the vertices coincide with the projection
lines.
Trim to object
The grading object can be used as a trim edge, but not trimmed.
Extend to object
The grading object can be used as an extend edge, but not extended.
Break
The grading object cannot be broken with the BREAK command.
Offset
The grading object cannot be offset.
Mirror
When mirrored, the grading object is copied and rotated 180 degrees based on a user defined reference
point. All the slope tags and target regions are mirrored along the object and slopes are updated. If the
object is locked, the slopes are mirrored, but remain locked.
Stretch
The grading object cannot be stretched, only grip edited (if unlocked and grips are visible).
Scale
The grading object can be scaled. When scaled, the slope tags and target regions remain in the same
locations relative to the vertices. The object is updated if it is unlocked.
Copy
The object can be copied to a new location, and searches for new slopes if the original grading object
was unlocked. If the original grading object was locked, the slopes/daylight lines of the new grading
object do not update until the object is unlocked.
Move
The object can be moved. If the object is unlocked, the slopes/daylight lines update automatically. If the
object is locked, the original slope and daylight lines do not update until the object is unlocked.
Cut and Paste
Using the Cut and Paste commands from the AutoCAD Edit menu with a grading object produces a block
that you must explode prior to regrading.
Rotate
The object can be rotated. If the object is locked, the original slope and daylight lines do not update until
the object is unlocked.
Erase
You can erases the object, even if it is locked.
Grip Editing
You can use grips to edit a grading object. There are grips for the footprint vertices, slope values, slope
tags, and target region boundaries. Grips are only visible if the grading object is unlocked and the grip
check box is selected in the Appearance tab in the Grading Properties dialog box. When you move a
vertex grip, the slope and target regions remain a fixed distance relative to the previous vertex.
Osnap
Snap points are fully enabled for the grading object.