NAME

       loch — Therion model viewer

SYNOPSIS

       loch [FILE]

DESCRIPTION

       This manual page documents loch, which is part of the therion-viewer package.

       loch is a 3D viewer which displays .lox files produced by therion and allows them to be examined.

OPTIONS

       loch optionally takes a .lox, Survex .3d or Compass .plt file to open.

BASIC CONTROL

       Key and Mouse Controls

       Function        Mouse action                                                   Key
       Zoom & Rotate   Left click + drag
       Zoom only       Left click + drag up/down, then hold left and click right      Ctrl + Up/Down
       Rotate only     Left click + drag left/right, then hold left and click right   Left/Right
       Pan             Right click + drag                                             Shift + Arrows
       Tilt            Middle (wheel) click + drag  or wheel rotate                   Up/Down
       Full screen     Left double click F11
       Context menu    Right click

       If  continuous  rotation  is  turned  on,  then rotation mouse movements change the speed or direction of
       rotation. If rotation is locked, then rotation mouse movements have no effect.

OFF SCREEN RENDERING

       Loch is able to render large bitmaps that can be afterwards post processed and printed.  Bitmaps  can  be
       exported in PDF, PNG or BMP formats. Configuration of export is done via the Rendering setup dialog.  You
       can set the following features:

       Size and Scaling

       Screen shot: Screen copy will be saved into a file with no other changes.

       Image width:  The screen image will be exported with the specified width.

       Image height: The screen image will be exported with the specified height.

       Scale: The screen image will be exported with the specified scale.

       Image options

       Rendering resolution: Resolution of the image file used when image size or scale are specified.

       Image size: Image size in pixels and uncompressed bytes calculated from previous settings.

       White background: Force white background in exported image.

KNOWN BUGS

       Sometimes empty rectangles appear in off screen rendered file.  Changing the window size usually helps.

       * Crashes have been observed on intel graphics cards unless the
        texture initialisations are removed in the code.

       * Stereo mode does not work correctly on some graphics adapters.

       * This help does not work.

SEE ALSO

       therion(1), xtherion(1)

       For full information see the Therion  Manual  in  /usr/share/doc/therion-doc/thbook.pdf  which  describes
       therion-viewer and its use in detail.

AUTHOR

       This  manual  page  was adapted from existing docs by Wookey wookey@debian.org for the Debian system (but
       may be used by others).  Permission is granted to copy, distribute and/or modify this document under  the
       terms  of  the  GNU General Public Licence, Version 2 or any later version published by the Free Software
       Foundation.

                                                                                                      THERION(1)