{"id":408164,"date":"2025-02-03T16:01:01","date_gmt":"2025-02-03T16:01:01","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/iso-surface-combination-across-time-steps\/"},"modified":"2025-02-03T16:01:01","modified_gmt":"2025-02-03T16:01:01","slug":"iso-surface-combination-across-time-steps","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/iso-surface-combination-across-time-steps\/","title":{"rendered":"Iso-surface combination across time steps"},"content":{"rendered":"<p>&lt;p&gt;Hi all,&nbsp;&lt;\/p&gt;&lt;p&gt;I have been trying to work with iso-surfaces across time steps.&lt;\/p&gt;&lt;p&gt;&lt;span data-ogsc=&#8221;black&#8221; data-olk-copy-source=&#8221;MessageBody&#8221;&gt;Here&rsquo;s what I wanted to achieve:&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&middot;&nbsp;&nbsp;&lt;span data-ogsc=&#8221;black&#8221;&gt;At&nbsp;<strong>time t\u2081<\/strong>, I generate an&nbsp;<strong>iso-surface<\/strong>&nbsp;over a certain set of&nbsp;<strong>cells in my domain&nbsp;<\/strong>from time step 1.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&middot;&nbsp;&nbsp;&lt;span data-ogsc=&#8221;black&#8221;&gt;At&nbsp;<strong>time t\u2082<\/strong>, I obtain another&nbsp;<strong>iso-surface from&nbsp;<\/strong>time step 2, which may overlap with or include different cells than at <strong>t\u2081<\/strong>.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&middot;&nbsp;&nbsp;&lt;span data-ogsc=&#8221;black&#8221;&gt;After&nbsp;<strong>t\u2082<\/strong>, I want the&nbsp;<strong>total spatially integrated iso-surface<\/strong>&nbsp;to include&nbsp;<strong>all cells that were part of the iso-surfaces at t\u2081 and t\u2082<\/strong>.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;Is there any specific method available to perform such operations. My simulation is a multiphase vof model.&nbsp;&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;Thanks in advance for your help.&nbsp;&lt;\/span&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-408164","topic","type-topic","status-publish","hentry","topic-tag-iso-surface"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["408164"],"_bbp_subscription":["241663","199"],"_bbp_author_ip":["193.61.145.108"],"_bbp_last_reply_id":["408186"],"_bbp_last_active_id":["408186"],"_bbp_last_active_time":["2025-02-03 16:44:31"],"_bbp_reply_count":["4"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["241663","199"],"_btv_view_count":["140"],"_bbp_topic_status":["unanswered"]},"test":"sivaraman-sulster-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/408164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/408164\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=408164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}