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

# SoQuadMesh(3iv)

quadrilateral mesh shape node

## NAME

SoQuadMesh — quadrilateral mesh shape node

## INHERITS FROM

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

## SYNOPSIS

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

Fields from class SoQuadMesh:

**SoSFInt32**	**verticesPerColumn**\
 **SoSFInt32**	**verticesPerRow**

Fields from class SoNonIndexedShape:

**SoSFInt32**	**startIndex**

Fields from class SoVertexShape:

**SoSFNode**	**vertexProperty**

Methods from class SoQuadMesh:

	**SoQuadMesh()**\
 **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 shape node constructs quadrilaterals out of vertices. The vertices may be specified in the vertexProperty** field (from **SoVertexShape**), or by the current inherited coordinates. For optimal performance, the **vertexProperty** field is recommended.

**SoQuadMesh** uses the coordinates, in order, starting with the first one. The number of vertices in the columns and rows of the mesh are specified by the **verticesPerColumn** and **verticesPerRow** fields. (Note that these numbers are 1 greater than the number of quadrilaterals per row and per column.)

For example, an **SoQuadMesh** with **verticesPerColumn** of 3, and **verticesPerRow** of 4 would use coordinates 1, 2, 3, and 4 for the first row of vertices, coordinates 5, 6, 7, and 8 for the second row, and coordinates 9, 10, 11, and 12 for the third (last) row. The result is a mesh of 3 quadrilaterals across by 2 down. Note: non-planar quadrilaterals formed by a quad mesh may cause interesting but unpredictable results.

The coordinates of the mesh are transformed by the current cumulative transformation. The mesh is drawn with the current light model and drawing style.

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

If any normals (or materials) are specified, Inventor assumes you provide the correct number of them, as indicated by the binding. You will see unexpected results if you specify fewer normals (or materials) than the shape requires. If no normals are specified, they will be generated automatically.

## FIELDS

**SoSFInt32**	**verticesPerColumn**\
 **SoSFInt32**	**verticesPerRow**\
 Number of vertices per column and row.

## METHODS

	**SoQuadMesh()**\
 Creates a quadrilateral mesh node with default settings.

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

## ACTION BEHAVIOR

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

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

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

**SoCallbackAction**\
 If any triangle callbacks are registered with the action, they will be invoked for each successive triangle forming the quadrilaterals of the mesh.

## FILE FORMAT/DEFAULTS

```
QuadMesh {
vertexProperty	NULL
startIndex	0
verticesPerColumn	1
verticesPerRow	1
}
```

## SEE ALSO

**SoCoordinate3, SoDrawStyle, SoFaceDetail, SoFaceSet, SoTriangleStripSet, SoVertexProperty**