Hi Kangh, Maybe the command is not known because you have not defined the ranges for materials before it ? Try to put it after the line /gate/hof_brain/interfileReader/rangeTranslator/readTable range_CT.dat Simon <div class="gmail_quote">On Mon, Jun 2, 2008 at 5:31 PM, <<a href="mailto:kangh@mskcc.org">kangh@mskcc.org</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div> Hello, I am trying to simulate a voxelized phantom using with compressed voxel (variable-size voxels).  Here is the macro file I am try to run # V O X E L I Z E D  M A T R I X   H O F F M A N   B R A I N   P H A N T O M /gate/world/daughters/name hof_brain #/gate/world/daughters/insert parameterizedBoxMatrix /gate/world/daughters/insert compressedMatrix /gate/hof_brain/compression/excludeList Lung Adipose Water Muscle Heart Liver SpineBone Bone /gate/hof_brain/geometry/insertReader interfile /gate/hof_brain/interfileReader/insertTranslator range /gate/hof_brain/interfileReader/rangeTranslator/readTable range_CT.dat /gate/hof_brain/interfileReader/rangeTranslator/describe 1 /gate/hof_brain/interfileReader/readFile  m000-newptCTscan.h33 /gate/hof_brain/placement/setTranslation  0. 0. 0. mm /gate/hof_brain/placement/setRotationAxis 1 0 0 /gate/hof_brain/placement/setRotationAngle 0 deg /gate/hof_brain/attachVoxelPhantomSD /gate/hof_brain/addOutput doseOutput /gate/output/doseOutput/saveUncertainty true /gate/output/doseOutput/setFileName hof_brain_paraDose.bin   The blue command lines are added as in the user guide manual on p. 89. When I ran the macro file I have gotten the following error message. /control/execute VoxelizedPhantom.mac /gate/world/daughters/name hof_brain /gate/world/daughters/insert compressedMatrix I/O warning : failed to load external entity "Materials.xml"    GateMaterialDatabase: did not find the Materials.xml file: no properties read for material 'Vacuum'      This is only a problem when OPTICAL PHOTONS are transported in this material.' /gate/hof_brain/compression/excludeList Lung Adipose Water Muscle Heart Liver SpineBone Bone ***** COMMAND NOT FOUND </gate/hof_brain/compression/excludeList Lung Adipose Water Muscle Heart Liver SpineBone Bone> ***** ***** Batch is interupted!! ***** It seems that GATE does not understand the command /gate/hof_brain/compression/excludeList Lung Adipose Water Muscle Heart Liver SpineBone Bone. I tried to look for any example to use compressedMatrix in the user talk archive but I could not find one.  Could anyone tell me what I did wrong? Thanks, Hyejoo <pre> ===================================================================== Please note that this e-mail and any files transmitted with it may be privileged, confidential, and protected from disclosure under applicable law. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, or other use of this communication or any of its attachments is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and deleting this message, any attachments, and all copies and backups from your computer. </pre></div> _______________________________________________ Gate-users mailing list <a href="mailto:Gate-users@lists.healthgrid.org">Gate-users@lists.healthgrid.org</a> <a href="http://lists.healthgrid.org/mailman/listinfo/gate-users" target="_blank">http://lists.healthgrid.org/mailman/listinfo/gate-users</a> </blockquote></div>