<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Roden,<div class=""><br class=""></div><div class="">The ChimeraX reader is for AmiraMesh format 2.1 and you are trying to read a version 3.0 file. I don't know if those are compatible. You can test by making ChimeraX not check the Amira file version by editing the following file (location for Mac, ChimeraX 1.3 daily build shown)<div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>ChimeraX.app/Contents/lib/python3.9/site-packages/chimerax/map_data/amira/amira_format.py<br class=""><div class=""><br class=""></div><div class="">changing these lines</div><div class=""><br class=""></div><div class=""><div class=""> if not (line.startswith(b'# AmiraMesh BINARY-LITTLE-ENDIAN 2.1') or</div><div class=""> line.startswith(b'# Avizo BINARY-LITTLE-ENDIAN 2.1')):</div><div class=""> raise SyntaxError('First line of AmiraMesh file must start with '</div><div class=""> '"# AmiraMesh BINARY-LITTLE-ENDIAN 2.1", '</div><div class=""> 'instead got "%s"' % line[:256])</div></div><div class=""><br class=""></div><div class="">to</div><div class=""><br class=""></div><div class=""><div class=""># if not (line.startswith(b'# AmiraMesh BINARY-LITTLE-ENDIAN 2.1') or</div><div class=""># line.startswith(b'# Avizo BINARY-LITTLE-ENDIAN 2.1')):</div><div class=""># raise SyntaxError('First line of AmiraMesh file must start with '</div><div class=""># '"# AmiraMesh BINARY-LITTLE-ENDIAN 2.1", '</div><div class=""># 'instead got "%s"' % line[:256])</div><div class=""><br class=""></div><div class="">so the version test will not be done.</div><div class=""><br class=""></div><div class=""> Or you could use ChimeraX menu Help / Report a Bug... and attach a modest size Amira 3.0 file and I can try it.</div><div class=""><br class=""></div><div class=""> Or you could make a copy of your Amira file and edit the first line so instead of saying it is version 3.0 it says it is version 2.1.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Tom</div><div class=""><br class=""></div><div><br class=""><blockquote type="cite" class=""><div class="">On Oct 23, 2021, at 8:12 AM, Roden Deng Luo via ChimeraX-users <<a href="mailto:chimerax-users@cgl.ucsf.edu" class="">chimerax-users@cgl.ucsf.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Dear ChimeraX Users,<div class=""><br class=""></div><div class="">I have an AmiraMesh .am file exported from Amira 3D 2021.1 (Build date: 2021-06-21 13:21:22, SHA id: 213bd1......13c73e). When I load it into ChimeraX 1.2.5 or ChimeraX 1.3.dev202110231141, ChimeraX tells me the following error.</div><div class=""><br class=""></div><div class=""><div style="margin: 0px; white-space: pre-wrap;" class="">First line of AmiraMesh file must start with "# AmiraMesh BINARY-LITTLE-ENDIAN 2.1", instead got "b'# AmiraMesh BINARY-LITTLE-ENDIAN 3.0\n'"</div></div><div class=""><br class=""></div><div class="">Googling "AmiraMesh site:<a href="https://www.rbvi.ucsf.edu/pipermail/chimerax-users" class="">https://www.rbvi.ucsf.edu/pipermail/chimerax-users</a>" shows no result. Can anyone kindly help here? <br class=""></div><div class=""><br class=""></div><div class="">Many thanks,</div><div class="">Roden</div><div class=""><br class=""></div><div class=""><br class=""></div></div>
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