Search found 2254 matches

by Ayman Habib
Mon Aug 18, 2008 10:11 am
Forum: OpenSim
Topic: Static Opt Java Error
Replies: 1
Views: 543

RE: Static Opt Java Error

<t>Dear Kathleen, <br/> <br/> The error you see is because OpenSim is trying to load a dll that contains the StaticOptimization "symbols" and not finding it. Since static optimization was introduced only in 1.5.5 you'll see this error if you're using old libraries (from a previous install) which wou...
by Ayman Habib
Sun Jul 27, 2008 8:36 pm
Forum: OpenSim
Topic: 1 set of external vs 2 sets of external loads
Replies: 4
Views: 702

RE: 1 set of external vs 2 sets of external l

<t>Dear Anthony,<br/> <br/> As of now the code expects two sets of external forces. We're aware of this, serious, limitation and will have a fix for it later in the summer (release 2.0) For the time being however, as a work around, you may want to add a set of columns with 0 value for the missing co...
by Ayman Habib
Tue Jul 15, 2008 11:32 am
Forum: OpenSim
Topic: Cost function.
Replies: 10
Views: 2265

RE: Cost function.

<t>Hi Andrea, <br/> <br/> In this context (tracking), the cost function referred to is the function used in CMC to resolve the redundancy (too many muscles for the number of degrees of freedom). For now this function is fixed but we plan to expose this function (allow users to provide their own) in ...
by Ayman Habib
Wed Jul 02, 2008 9:47 am
Forum: OpenSim
Topic: MarkerSet
Replies: 19
Views: 5209

RE: MarkerSet

<t>Hi Pablo, <br/> <br/> Markers are included in the model file (.osim) under the xml tag <br/> <MarkerSet name=""><br/> <objects><br/> <Marker name="Sternum"><br/> <!--Body segment in the model on which the marker resides.--> <br/> <body> torso </body><br/> <!--Location of a marker on the body segm...
by Ayman Habib
Sat Jun 14, 2008 12:10 am
Forum: OpenSim
Topic: Extending graphics output and models
Replies: 2
Views: 548

RE: Extending graphics output and models

<t>Dear Rene,<br/> <br/> Currently, the gfx environment is not extensible (or there is no exposed API). What you're trying to do, however, will be possible when we expose OpenSim as a public API so that you can link the OpenSim libraries to any other software platform you're familiar with. This (exp...
by Ayman Habib
Mon Jun 09, 2008 1:25 pm
Forum: OpenSim
Topic: Segment definitions in osim file
Replies: 1
Views: 1055

RE: Segment definitions in osim file

<t>Hi JunJay, <br/> <br/> OpenSim model file does not contain lengths, as these are not used by OpenSim. The attachment of different segments to their parents in the linkage are stored in the OpenSim file with every joint that attaches the segment to its parent (e.g. below). If you assume attachment...
by Ayman Habib
Thu Jun 05, 2008 9:01 am
Forum: OpenSim
Topic: a question about install SDFast
Replies: 1
Views: 293

RE: a question about install SDFast

Hi,

SDFast is a commercial package distributed by Parametric Technology Corporation, if you want to use it you'll have to buy it separately.

Good luck,
-Ayman
by Ayman Habib
Thu Jun 05, 2008 8:57 am
Forum: OpenSim
Topic: musculotendon length calculations
Replies: 1
Views: 628

RE: musculotendon length calculations

<t>Hi Tim,<br/> <br/> If you make a motion file with one frame per pose that contains a column for each coordinate and load it, you can use the plotter to create the curves for muscle tendon lengths thru the motion (for the muscles you care about). Then you can export the data to a storage file usin...
by Ayman Habib
Thu Jun 05, 2008 8:50 am
Forum: OpenSim
Topic: Linux version? And suitability question.
Replies: 5
Views: 866

RE: Linux version? And suitability question.

<t>Dear James,<br/> <br/> Thanks for your interest in OpenSim.<br/> <br/> Although we have been able to build and use the software on Linux, most of the testing is done on Windows machines as of now and so we didn't feel we tested the Linux environment enough to release a build. This will change wit...
by Ayman Habib
Sat May 17, 2008 11:31 pm
Forum: OpenSim
Topic: Error Opening models (even demos)
Replies: 15
Views: 3121

RE: Error Opening models (even demos)

<t>Dear Mark,<br/> <br/> Installing OpenSim on a virgin machine does not reproduce your problem. It's likely an environment issue. Did you have earlier installations of OpenSim on the same machine? If so I'd remove that first before reinstalling. and did you check the box for "Add OpenSim to the use...