Unconstrained And Referenced-Based Forms; Converting Reference-Based Forms To Unconstrained Forms - Autodesk 256B1-05A761-1301 - AutoCAD Revit Structure Suite 2010 User Manual

Unconstrained and Referenced-Based Forms

Depending on the tools used to create them, 2 types of form are created in the conceptual design environment.
unconstrained form
reference-based form
The behavior of these 2 forms may differ when they are modified.
Unconstrained form
Displays a solid line when highlighted.
Created when there is no need to rely on
another form or type of reference.
Created using any line in the Draw panel.
Click Create tab
Not dependent on other objects.
Profiles are unlocked by default.
The edges, surfaces, and vertices can be
edited directly.
Related topic
Form Types

Converting Reference-based Forms to Unconstrained Forms

1 Select the reference lines on a reference-based form.
2 Click Modify Reference Lines tab
Properties.
3 Clear Is Reference Line.
The form is unconstrained.
554 | Chapter 11 Conceptual Design Environment
Reference-based form
Displays a dashed line when highlighted.
Created when there is a need for a paramet-
ric relationship between the form and
other geometry or references.
Created using reference lines, reference
points, or any part of another form. Click
Draw panel Line.
Create Tab
Dependent on its references. When its de-
pendent reference changes, the reference-
based form changes.
Profiles are locked by default for extrusions
and sweeps.
Edited by directly editing the reference
element. For example, select a reference
line and drag it using the 3D controls.
on page 556
Draw panel Reference.
Element panel Element Properties drop-down Instance