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--- visual3d:getting_started:visual3d_faq [2024/07/17 15:46] – created sgranger
+++ visual3d:getting_started:visual3d_faq [2024/11/20 17:02] (current) – wikisysop
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 ====== Visual3D FAQ ======
-This Frequently Asked Questions page contains a fairly eclectic mix of questions regarding Visual3D. It is made up of questions that are regularly asked by users via support@c-motion.com and the typical answers provided by us to those questions. More complete solutions/answers/explanations can be found within the C-Motion documentation wiki. Wherever appropriate, links to information within the wiki are provided. "Subject-specific" FAQ pages, dealing with individual topics, can be found by using the FAQ Category link at the bottom of this page and some questions here are also on those other pages.
+This Frequently Asked Questions page contains a fairly eclectic mix of questions regarding Visual3D. It is made up of questions that are regularly asked by users via support@has-motion.ca and the typical answers provided by us to those questions. More complete solutions/answers/explanations can be found within the C-Motion documentation wiki. Wherever appropriate, links to information within the wiki are provided. "Subject-specific" FAQ pages, dealing with individual topics, can be found by using the FAQ Category link at the bottom of this page and some questions here are also on those other pages.
 ==== FAQs ====
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-Many people collect analog data at a higher rate than their motion capture data, which is the point rate. This is fine, as long as the higher rate is an integer multiple of the point rate. When force data are applied to a model, the resulting Link_Model_Based data are at point rate. This is because forces applied to segments cannot be calculated where the segment location is unknown (between point frames), i.e. there are no target data to generate segment locations for the ‘extra’ analog frames. However, the FORCE data retain the analog data rate. These ‘extra’ sample points are displayed as SUB frames within the point rate. Other Link_Model_Based data, which are based on segments, are also sampled at the point rate, since segmental data can only ever be calculated at point rate.
+Many people collect analog data at a higher rate than their motion capture data, which is the point rate.
+This is fine, as long as the higher rate is an integer multiple of the point rate.
+When force data are applied to a model, the resulting Link_Model_Based data are at point rate.
+This is because forces applied to segments cannot be calculated where the segment location is unknown (between point frames),
+i.e. there are no target data to generate segment locations for the ‘extra’ analog frames.
+However, the FORCE data retain the analog data rate.
+These ‘extra’ sample points are displayed as SUB frames within the point rate.
+The first subframe is synchronized with the point data, and it is this first subframe that is used for Inverse Dynamics calculations.
+Other Link_Model_Based data, which are based on segments, are also sampled at the point rate, since segmental data can only ever be calculated at point rate.
 **Question**: I can’t get my data out of Visual3D and into **OpenSim**, Help!!!\\