COMSOL 6.4 - Repair

Repair

Repair CAD objects.

Syntax

model.component(<ctag>).geom(<tag>).feature().create(<ftag>,"Repair");

model.component(<ctag>).geom(<tag>).feature(<ftag>).selection(property);

model.component(<ctag>).geom(<tag>).feature(<ftag>).set(property,<value>);

model.component(<ctag>).geom(<tag>).feature(<ftag>).getType(property)

model.component(<ctag>).geom(<tag>).feature(<ftag>).setAttribute(attribute,<value>);

model.component(<ctag>).geom(<tag>).feature(<ftag>).getAttribute(attribute);

Description

model.component(<ctag>).geom(<tag>).feature().create(<ftag>,"Repair")

creates a repair feature tagged <ftag>. The following properties are available.

Table 3-74: Available Properties.
Property	Value	Default	Description
input	Selection		Names of input objects.
check	on \| off	on	Check the input objects for errors.
deletedetails	on \| off	on	Delete small geometric details from the geometry.
fixerrors	on \| off	on	Attempt to repair errors.
healedges	on \| off	off	Attempt to replace tolerant edges with accurately calculated edges.
minimizetol	on \| off	off	Attempt to reduce edge and vertex tolerances.
repairtol	double	1e-5	Absolute repair tolerance
selresult	on \| off	off	Create selections of all resulting objects.
selresultshow	all \| obj \| dom \| bnd \| edg \| pnt \| off	dom	Show selections of resulting objects in physics, materials, and so on, or in part instances. obj is not available in a component’s geometry. dom, bnd, and edg are not available in all features.
simplify	on \| off	off	Simplify the underlying curve and surface manifolds of geometric entities
repairfacetoface	on \| off	off	Repair face-to-face inconsistencies in solid objects
contributeto	String	none	Tag of cumulative selection to contribute to.

The function tries to remove or repair the following geometric and topological errors:

•

Entities with invalid sense

•

Invalid edge and vertex tolerances

•

Invalid manifolds

•

Self-intersecting manifolds

•

Non-G1 manifolds

•

Missing edge or vertex manifolds

•

Missing vertex

•

Vertices not on curve of edge

•

Edges and vertices not on surface of face

•

Surface self-intersections that lie outside the face

•

Edge intersections that have no vertex

•

Removal of discontinuities by either splitting or smoothing.

The function can also remove small geometric details including short edges, small faces, sliver faces, and spikes.

The following attributes are available:

Table 3-75: Valid attributes
Name	Value	Default	Description
construction	on \| off \| inherit	inherit	Designate the resulting objects as construction geometry. Use inherit to set the construction geometry attribute only if all input objects are construction geometry.

Compatibility

The following property is no longer supported:

Table 3-76: Obsolete Properties.
Property	Value	Default	Description
Out	stx \| ftx \| ctx \| ptx	none	Output variables

Example

The following example imports the file repair_demo_2.x_b, and repairs the resulting objects.

Model model = ModelUtil.create("Model1");

model.component.create("comp1");

model.component("comp1").geom().create("geom1",3);

model.component("comp1").geom("geom1").feature().create("imp1","Import");

model.component("comp1").geom("geom1").feature("imp1").set("filename", "repair_demo_2.x_b");

model.component("comp1").geom("geom1").runAll();

model.component("comp1").geom("geom1").feature().create("rep1","Repair");

model.component("comp1").geom("geom1").feature("rep1").selection("input"). set("imp1");

model.component("comp1").geom("geom1").feature("rep1").set("repairtol",1e-3);

model.component("comp1").geom("geom1").runAll();