COMSOL 6.4 - Loft

Loft

Create a lofted surface through a set of profile curves.

Syntax

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

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>,"Loft")

creates a Loft feature.

Use model.component(<ctag>).geom(<tag>).feature(<ftag>).
selection("profile") to select loft profiles that are not specified as start or end profiles. The default selection is empty.

Use model.component(<ctag>).geom(<tag>).feature(<ftag>).
selection("startprofile") to select the loft start profile. The default selection is empty.

Use model.component(<ctag>).geom(<tag>).feature(<ftag>).
selection("endprofile") to select the loft start profile. The default selection is empty.

Use model.component(<ctag>).geom(<tag>).feature(<ftag>).
selection("guide") to select guide curves that are not specified as start or end guide curves. The default selection is empty.

Use model.component(<ctag>).geom(<tag>).feature(<ftag>).
selection("startguide") to select the start guide curve. The default selection is empty.

Use model.component(<ctag>).geom(<tag>).feature(<ftag>).
selection("endguide") to select the end guide curve. The default selection is empty.

Table 3-54: Available properties.
Property	Value	Default	Description
periodic	on \| off	off	Periodic loft.
unite	on \| off	on	Unite with input objects.
crossfaces	on \| off	off	Keep intermediate profile faces.
type	solid \| surface	solid	Object type.
facepartioning	minimal \| columns \| grid	minimal	Face partitioning.
removeredundant	on \| off	off	Remove vertices that separate edges with identical curves before the loft.
profile	Selection		Profiles.
startprofile	Selection		Start profile selection.
startprofiledir	notprescribed \| parallel \| perpendicular \| atangle	notprescribed	Loft direction.
startprofilerel	profilefaces \| adjacent \| profileedges	adjacent	Relative to.
startprofileangle	double	0	Angle.
endprofile	Selection		End profile selection.
endprofiledir	notprescribed \| parallel \| perpendicular \| atangle	notprescribed	Loft direction.
endprofilerel	profilefaces \| adjacent \| profileedges	adjacent	Relative to.
endprofileangle	double	0	Angle.
guide	Selection		Guide curves.
startguide	Selection		Start guide curve.
startguidedir	notprescribed \| parallel	notprescribed	Loft surface direction.
endguide	Selection		Start guide curve.
endguidedir	notprescribed \| parallel	notprescribed	Loft surface direction.
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.
propagatesel	on \| off	on	Propagate selections from input objects to resulting objects.
contributeto	String	none	Tag of cumulative selection to contribute to.

For information about the selresult, selresultshow and contributeto properties, search the online help in COMSOL Multiphysics to locate and search the documentation.

The following attributes are available:

Table 3-55: 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.

Example

Create a cylinder from two disc profiles. This illustrates two different ways of specifying the profile.

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

model.component().create("comp1");

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

model.component("comp1").geom("geom1").geomRep("cadps");

model.component("comp1").geom("geom1").feature().
create("wp1", "WorkPlane");

model.component("comp1").geom("geom1").feature("wp1").geom().
create("c1", "Circle");

model.component("comp1").geom("geom1").create("copy1", "Copy");

model.component("comp1").geom("geom1").feature("copy1").
selection("input").set(new String[]{"wp1"});

model.component("comp1").geom("geom1").feature("copy1").
set("displz", "1");

model.component("comp1").geom("geom1").create("loft1", "Loft");

model.component("comp1").geom("geom1").feature("loft1").
selection("profile").set(new String[]{"wp1"});

model.component("comp1").geom("geom1").feature("loft1").
selection("startprofile").init(1);

model.component("comp1").geom("geom1").feature("loft1").
selection("startprofile").
set("copy1", new int[]{1, 2, 3, 4});

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