XDSGUI: Difference between revisions

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# ''Another question concerning TOOLS: "Further analyses" on Mac: again pointless runs nicely but there is no output for the user.'' <br> Answer: Could it be that you started xdsgui by double-clicking its icon in the Finder? In that case, there is no output visible, because there is no console. Unfortunately, for all the Tools, the output is in the console window where xdsgui was started. Thus, you should really start xdsgui in a console window.
# ''Another question concerning TOOLS: "Further analyses" on Mac: again pointless runs nicely but there is no output for the user.'' <br> Answer: Could it be that you started xdsgui by double-clicking its icon in the Finder? In that case, there is no output visible, because there is no console. Unfortunately, for all the Tools, the output is in the console window where xdsgui was started. Thus, you should really start xdsgui in a console window.
# both generate_XDS.INP and [[XDS]] do not tolerate spaces ("blanks") in file/directory names. While frame names rarely have a space in them, directories might, e.g. if an external disk has the label "John's USB disk" then this would be mounted on Linux as /media/John's USB disk/ and that would result in a error message from generate_XDS.INP and/or XDS. The '''workaround''' is to use a symlink on a different hard disk.  
# both generate_XDS.INP and [[XDS]] do not tolerate spaces ("blanks") in file/directory names. While frame names rarely have a space in them, directories might, e.g. if an external disk has the label "John's USB disk" then this would be mounted on Linux as /media/John's USB disk/ and that would result in a error message from generate_XDS.INP and/or XDS. The '''workaround''' is to use a symlink on a different hard disk.  
# ''Problem description: On the Mac, after loading frames, by clicking “generate XDS.INP”, the program gives some strange symbol “” in XDS.INP. And the more you click “save” button, the more “” appeared. This looks like <br>SPACE_GROUP_NUMBER=0  ! 0 if unknown <br>UNIT_CELL_CONSTANTS= 70 80 90 90 90 90  .''<br> The problem is due to the “Rich text” format in TextEdit when saving "generate_XDS.INP". It is solved by re-downloading the script, and changing format to Plain - everything is working now.
# ''Problem description: On the Mac, after loading frames, by clicking “generate XDS.INP”, the program gives some strange symbol “” in XDS.INP. And the more you click “save” button, the more “” appeared. This looks like <br>SPACE_GROUP_NUMBER=0  ! 0 if unknown <br>UNIT_CELL_CONSTANTS= 70 80 90 90 90 90  .''<br> The problem is due to the “Rich text” format in TextEdit when saving "generate_XDS.INP". It is solved by changing format to Plain in TextEdit, and re-downloading the script.
# on a Mac, you may find a stream of the following error messages in the console window: <code>Jan 31 14:35:17  xdsgui[20939] <Error>: Error: this application, or a library it uses, has passed an invalid numeric value (NaN, or not-a-number) to CoreGraphics API and this value is being ignored. Please fix this problem. Jan 31 14:35:17  xdsgui[20939] <Error>: If you want to see the backtrace, please set CG_NUMERICS_SHOW_BACKTRACE environmental variable.</code> This sounds terrible, but is actually harmless. Since it is a message from Qt (which XDSGUI uses for graphics), ''it does not compromise the XDS data processing in any way''. If it bothers you, just suppress the printout of these messages, by <code>xdsgui 2>&1 | egrep -v 'CoreGraphics|CG_NUMERICS'</code>
# on a Mac, you may find a stream of the following error messages in the console window: <code>Jan 31 14:35:17  xdsgui[20939] <Error>: Error: this application, or a library it uses, has passed an invalid numeric value (NaN, or not-a-number) to CoreGraphics API and this value is being ignored. Please fix this problem. Jan 31 14:35:17  xdsgui[20939] <Error>: If you want to see the backtrace, please set CG_NUMERICS_SHOW_BACKTRACE environmental variable.</code> This sounds terrible, but is actually harmless. Since it is a message from Qt (which XDSGUI uses for graphics), ''it does not compromise the XDS data processing in any way''. If it bothers you, just suppress the printout of these messages, by <code>xdsgui 2>&1 | egrep -v 'CoreGraphics|CG_NUMERICS'</code>
# Frames from HDF5-files (*master.h5) are not being displayed: the symptom is that the frames appear to be empty/blank. This means you have not specified the correct "generic library" - see [[XDSGUI#Technical aspects of XDSGUI usage|Technical aspects of XDSGUI usage]]. The fix is: go to (upper left) "Menu"->"Settings"->insert the string "/usr/local/lib64/dectris-neggia.so" as "generic library", or try "/usr/local/lib64/durin-plugin.so" for DIAMOND data. Ask the system administrator for the exact path! If none of these works, leave "generic library" empty and install <code>H5ToXds</code> or <code>hdf2mini-cbf</code> as explained above.
# Frames from HDF5-files (*master.h5) are not being displayed: the symptom is that the frames appear to be empty/blank. This means you have not specified the correct "generic library" - see [[XDSGUI#Technical aspects of XDSGUI usage|Technical aspects of XDSGUI usage]]. The fix is: go to (upper left) "Menu"->"Settings"->insert the string "/usr/local/lib64/dectris-neggia.so" as "generic library", or try "/usr/local/lib64/durin-plugin.so" for DIAMOND data. Ask the system administrator for the exact path! If none of these works, leave "generic library" empty and install <code>H5ToXds</code> or <code>hdf2mini-cbf</code> as explained above.
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