**Inheritance:** java.lang.Object ``` public abstract class NodeRendererBase ``` Base class for [ShapeRenderer](../../com.aspose.words/shaperenderer/) and [OfficeMathRenderer](../../com.aspose.word......OFFICE_MATH, 0, true); OfficeMathRenderer renderer...getChild(NodeType.OFFICE_MATH, 0, true); OfficeMathRenderer renderer...