C_Ext - superclass: GeometryClass; super-superclass:node - classID: #(867248205, 2062557197) 
Constructor:
c_ext...   Properties:
<C_Ext>.Back_Length Float default: 0.0 -- animatable; worldunitsSets the length of the back edge.
<C_Ext>.Side_Length Float default: 0.0 -- animatable; worldunitsSets the length of the side edge.
<C_Ext>.Front_Length Float default: 0.0 -- animatable; worldunitsSets the length of the front edge.
<C_Ext>.Back_Width Float default: 0.0 -- animatable; worldunitsSets the width of the back edge.
<C_Ext>.Side_Width Float default: 0.0 -- animatable; worldunitsSets the width of the side edge.
<C_Ext>.Front_Width Float default: 0.0 -- animatable; worldunitsSets the width of the front edge.
<C_Ext>.height Float default: 0.0 -- animatable; worldunitsSets the overall height of the object.
<C_Ext>.mapCoords booleanclass default: true -- boolean Available in 3ds Max 2018 and higher: These properties reflect the parameters on the Keyboard Entry rollout for each geometry object. These parameters can be set on any existing object.
<C_Ext>.typeinCreationMethod     Integer    default: 0   --  integer; Creation_MethodGets or sets the Creation Method. Possible values are:
<C_Ext>.typeInHeight     Float    default: 0.0   --  float; HeightGets or sets the height Keyboard Entry value.
<C_Ext>.typeInBackLength     Float    default: 0.0   --  float; Back_Length
<C_Ext>.typeInBackWidth     Float    default: 0.0   --  float; Back_Width
<C_Ext>.typeInFrontLength     Float    default: 0.0   --  float; Front_Length
<C_Ext>.typeInFrontWidth     Float    default: 0.0   --  float; Front_Width
<C_Ext>.typeInSideLength     Float    default: 0.0   --  float; Side_Length
<C_Ext>.typeInSideWidth     Float    default: 0.0   --  float; Side_WidthGets or sets the Back Length, Side Length, Front Length, Back Width, Side Width, and Front Width Keyboard Entry values.
<C_Ext>.typeInPos     Point3    default: [0,0,0]   --  point3; Type_in_PositionGets or sets the Keyboard Entry position values as a Point3.
Interfaces:
Interface:realWorldMapSizeInterface Properties:
.realWorldMapSize: boolean : Read|Write Enables/disables the real-world map size option.
Available in 3ds Max 8 and higher.