Creating a Matching Constraint

From the Operations toolbar, click Creation Match Surface .

Select the edge of a subdivision and then select the boundary curve.

Click Apply .

A matching constraint between the two geometrical elements is created.

From the Tools Palette, select any one of the following:

Option	Description
Modification	Selects the matching constraint to be edited.
Remove	Removes the selected matching constraint.
Remove All	Removes all matching constraints.
Creation Match Surface	Creates a new matching constraint.
Target Selection	Selects the boundary curve of a matching constraint.
Tangent Propagation	Propagates the selected edges in tangency.
Sharp to Smooth	Chooses between a very sharp matching surface, or a smooth and curved matching surface. Click Sharp to Smooth to switch to Smooth to Sharp .
Deform	Adds a new ribbon of faces to lower the deformation of the original surface. Click Deform to switch to Add.
Automatic or Custom Options	Provides additional options.
Cut	Defines the number of cuts on your matching surface.
Ratio	Spreads the deformation created by the match.
Connection Quality	Defines the connection quality and continuity of a matching surface.
Curvature Quality	Defines the curvature quality and continuity of a matching surface.
Mesh View	Hides or displays the base mesh.
Apply	Validates the command.

You must click Apply each time you use an option. You do not need to create a curve on a surface to make a matching constraint. You can only use the Sharp to Smooth option if you create a matching constraint with a curve that does not lie on a surface. You can work in automatic mode for a more efficient use of the options.

From the Analysis toolbar, click Isophotes Mapping Analysis .

In the Isophote Mapping Analysis dialog box, select Analysis mapping on part or element by element .

This option lets you analyze the quality of the matching constraint you have applied.

From the Tools Palette, click Curvature Quality and use the slider to modify the reflection quality of your matching surface as desired.