{"id":338441,"date":"2023-12-13T15:14:52","date_gmt":"2023-12-13T15:14:52","guid":{"rendered":"\/forum\/forums\/topic\/color-bar-issue-2\/"},"modified":"2023-12-13T15:14:52","modified_gmt":"2023-12-13T15:14:52","slug":"color-bar-issue-2","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/color-bar-issue-2\/","title":{"rendered":"Color bar issue"},"content":{"rendered":"<p>Dear all,<\/p>\n<p>I am so confused about the log scaling of color bar in FDTD. The upper pic is with linear scaling while the lower pic is with log scaling. It seems it&#8217;s not loge,log2 &amp;log10 cuz the intensity is less than 1 and will be transformed to negative numbers if so. Could you please tell me how the math goes in this transformation? I wanna process this graph in MATLAB but don&#8217;t know how.&nbsp;<\/p>\n<p>.<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/13-12-2023-1702480198-log.png\" alt=\"\"><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/13-12-2023-1702480153-linear.png\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-338441","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["285599","18532"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["713"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["338441"],"_bbp_forum_id":["27833"],"_bbp_engagement":["18532","285599"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["338751"],"_bbp_last_active_id":["338751"],"_bbp_last_active_time":["2023-12-15 12:34:28"]},"test":"zmjingstd-uestc-edu-cn"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/338441","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\/338441\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=338441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}