C++
AcDbDimension();
Description
Default constructor. Initializes the dimension object's normal vector to (0,0,1), the text location to (0,0,0), the elevation to 0.0, the dimension flags to indicate that the dimension uses the default text location, the annotation text string to NULL, the text rotation, and horizontal rotation angles to 0.0, this dimension's dimension style object ID to AcDbObjectId::kNull, the block table record object ID to AcDbObjectId::kNull, and the insertion point to (0,0,0).