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Diffstat (limited to 'doc/man/crystfel_geometry.5.md')
| -rw-r--r-- | doc/man/crystfel_geometry.5.md | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/doc/man/crystfel_geometry.5.md b/doc/man/crystfel_geometry.5.md index ecaf60bf..640771ee 100644 --- a/doc/man/crystfel_geometry.5.md +++ b/doc/man/crystfel_geometry.5.md @@ -529,13 +529,20 @@ Groups can themselves be combined into higher-level groups, for example: group_all = abc,def -This defines a group called *all** which contains both of the groups created +This defines a group called **all** which contains both of the groups created above. The highest-level group should always be called **all**. -If the detector consists of only one panel, CrystFEL will automatically create -the **all** group containing it. +All members of a group need to be defined before defining the group. This +means that the group definitions must come **after** the panel definitions, and +the groups should be defined from the bottom to top level of the hierarchy - +the **all** group coming last. + +If you do not define any groups, CrystFEL will automatically create the **all** +group for you, containing all panels in a flat hierarchy. This allows basic +geometry refinement (level zero, see **align_detector**) to work without any +extra work. The **group** system replaces the **rigid_group** system used in older versions of CrystFEL. If the geometry file contains any **rigid_group** lines, they |