If you updated an earlier version of Multiframe to version 10.04 using a patch, the uninstall button may be missing from Add/Remove Programs for Multiframe 10. This problem is caused by a change in our installer program. To uninstall please run the following from the command line:

MsiExec.exe /uninstall {AA3A4386-9F99-45D8-B109-2D3F7B40BC5D}

This will remove Multiframe 10 from your system.

When installing Multiframe 11 you may see the "Library Migration Error..." message. This is caused by an issue when patching to 10.04.

On XP\2000 systems you must copy LoadLibrary.llb (Multiframe 4D only) and SectionsLibrary.slb from c:\program files\multiframe10\ to c:\program files\multiframe11\.

On Vista systems you must copy LoadLibrary.llb (Multiframe 4D only) and SectionsLibrary.slb from c:\Users\Public\Documents\Multiframe\Multiframe10 to c:\Users\Public\Documents\Multiframe\Multiframe11.

The difference between masking and clipping is that clipping is 'spatial' and masking is 'logical'. When you clip you define the boundaries of a 3D space and all the members that are physically contained within that space remain active. The clipping bars you see on screen define the boundaries of the clipping box. You can move these clip bars with the mouse or use the 'clip to selection' or 'clip to frame' commands to automatically position the clipping box around the area of interest.
 
Masking allows you to select members to include or exclude from the active list. Mask To Selection makes all the selected members active while Mask Out Selection makes all of the selected inactive. The selection can contain any number of members in any part of the frame.
 
If you mask and clip at the same time, the active member list will comprise those members which will be visible due to the effects of both clipping and masking.

Multiframe adopts the convention that joint 1 is always the joint to the left of the member in the front view and in the case of members which are vertical joint 1 is at the bottom, joint 2 at the top.
 
In the case of a member which lies in the xy plane, joint 1 will be the joint on the left and joint 2 will be the joint on the right. In the case of a member which lies in the xz plane, joint 1 will be the joint on the left as viewed in the right hand view and joint 2 will be the joint on the right as viewed in the right hand view.