---
name: "SoLineSet"
section: "3iv"
platform: "linux"
package: "inventor-doc"
version: "2.1.6+ds-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SoLineSet/3iv"
---

# SoLineSet(3iv)

polyline shape node

## NAME

SoLineSet — polyline shape node

## INHERITS FROM

SoBase \> SoFieldContainer \> SoNode \> SoShape \> SoVertexShape \> SoNonIndexedShape \> SoLineSet

## SYNOPSIS

**#include \<Inventor/nodes/SoLineSet.h\>**

Fields from class SoLineSet:

**SoMFInt32**	**numVertices**

Fields from class SoNonIndexedShape:

**SoSFInt32**	**startIndex**

Fields from class SoVertexShape:

**SoSFNode**	**vertexProperty**

Methods from class SoLineSet:

	**SoLineSet()**\
 **static SoType**	**getClassTypeId()**

Methods from class SoNode:

**void**	**setOverride(SbBool state)**\
 **SbBool**	**isOverride() const**\
 **SoNode \***	**copy(SbBool copyConnections = FALSE) const**\
 **virtual SbBool**	**affectsState() const**\
 **static SoNode \***	**getByName(const SbName &name)**\
 **static int**	**getByName(const SbName &name, SoNodeList &list)**

Methods from class SoFieldContainer:

**void**	**setToDefaults()**\
 **SbBool**	**hasDefaultValues() const**\
 **SbBool**	**fieldsAreEqual(const SoFieldContainer \*fc) const**\
 **void**	**copyFieldValues(const SoFieldContainer \*fc, SbBool copyConnections = FALSE)**\
 **SbBool**	**set(const char \*fieldDataString)**\
 **void**	**get(SbString &fieldDataString)**\
 **virtual int**	**getFields(SoFieldList &resultList) const**\
 **virtual SoField \***	**getField(const SbName &fieldName) const**\
 **SbBool**	**getFieldName(const SoField \*field, SbName &fieldName) const**\
 **SbBool**	**isNotifyEnabled() const**\
 **SbBool**	**enableNotify(SbBool flag)**

Methods from class SoBase:

**void**	**ref()**\
 **void**	**unref() const**\
 **void**	**unrefNoDelete() const**\
 **void**	**touch()**\
 **virtual SoType**	**getTypeId() const**\
 **SbBool**	**isOfType(SoType type) const**\
 **virtual void**	**setName(const SbName &name)**\
 **virtual SbName**	**getName() const**

## DESCRIPTION

**This node represents a 3D shape formed by constructing polylines from vertices located at the coordinates specified in the vertexProperty** field (from **SoVertexShape**), or the current inherited coordinates. For optimal performance, the **vertexProperty** field is recommended.

**SoLineSet** uses the coordinates in order, starting with the first one. Each line has a number of vertices specified by a value in the **numVertices** field. For example, an **SoLineSet** with a **numVertices** of \[3,4,2\] would use coordinates 1, 2, and 3 for the first line, coordinates 4, 5, 6, and 7 for the second line, and coordinates 8 and 9 for the third.

The number of values in the **numVertices** field indicates the number of polylines in the set.

The coordinates of the line set are transformed by the current cumulative transformation. The lines are drawn with the current light model and drawing style (drawing style **FILLED** is treated as **LINES**).

Treatment of the current material and normal binding is as follows: The **PER\_PART** binding specifies a material or normal for each segment of the line. The **PER\_FACE** binding specifies a material or normal for each polyline. The **\_INDEXED** bindings are equivalent to their non-indexed counterparts. The default material binding is **OVERALL**. The default normal binding is **PER\_VERTEX**.

The current complexity value has no effect on the rendering of line sets.

## FIELDS

**SoMFInt32**	**numVertices**\
 Number of vertices per polyline.

## METHODS

	**SoLineSet()**\
 Creates a line set node with default settings.

**static SoType**	**getClassTypeId()**\
 Returns type identifier for this class.

## ACTION BEHAVIOR

**SoGLRenderAction**\
 Draws lines based on the current coordinates, normals, materials, drawing style, and so on.

**SoRayPickAction**\
 Picks lines based on the current coordinates and transformation. Details about the intersection are returned in an **SoLineDetail**.

**SoGetBoundingBoxAction**\
 Computes the bounding box that encloses all vertices of the line set with the current transformation applied to them. Sets the center to the average of the coordinates of all vertices.

**SoCallbackAction**\
 If any line segment callbacks are registered with the action, they will be invoked for each successive segment in the line set.

## FILE FORMAT/DEFAULTS

```
LineSet {
vertexProperty	NULL
startIndex	0
numVertices	-1
}
```

## SEE ALSO

**SoCoordinate3, SoDrawStyle, SoIndexedLineSet, SoLineDetail, SoVertexProperty**