When you use the Save Current Map to AutoCAD wizard and specify the Editable conversion method, AutoCAD Map 3D can use one of two AutoCAD methods for determining line width: Lineweight or PolylineWidth. At installation, the wizard uses Lineweight. To change the line width method used by the wizard, enter the command MAPTOACADUSELINEWEIGHT at the command line and specify one of the possible values (Lineweight or PolylineWidth, abbreviated as L and P). The entry between the angle brackets <> is the current setting.
The differences between the two methods are as follows:
- Lineweights support only the range available in AutoCAD (0 to 2.11mm). Lines in AutoCAD Map 3D can be from 0 to 0.5 meters wide.
- You can turn lineweight viewing on or off for an entire drawing, while PolylineWidth cannot be controlled globally.
- Lineweight is set by Device Space, so it displays the same thickness when you zoom in and out in AutoCAD (as it does in AutoCAD Map 3D). PolylineWidth is set by Model/Map Space, so it will get smaller or larger as you zoom.
- Lineweight displays rounded ends and joins (as does in AutoCAD Map 3D), while PolylineWidth displays squared ends and joins.
- Lineweight displays in all views, while PolylineWidth displays only in “plan” view.
- You can use plot styles to adjust the plot width of lineweights, but PolylineWidth is always fixed. To change the way that PolylineWidth is plotted, zoom the drawing to the desired line width before plotting.