{"id":439830,"date":"2025-08-21T02:43:57","date_gmt":"2025-08-21T02:43:57","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/grid-distortion-with-different-field-of-view-angles\/"},"modified":"2025-08-21T02:43:57","modified_gmt":"2025-08-21T02:43:57","slug":"grid-distortion-with-different-field-of-view-angles","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/grid-distortion-with-different-field-of-view-angles\/","title":{"rendered":"Grid distortion with different field of view angles"},"content":{"rendered":"<p>&lt;p&gt;1. When the reference field of view is set to a field angle size of 0, the size of the Grid distortion is similar to that in the Field curv\/Dist graph; however, when the maximum field angle is selected, the maximum distortion displayed by the Grid distortion is significantly different from the former. What is the reason for this?&nbsp;&lt;br&gt;2. Is the maximum distortion given by the optical indicators the size of the reference Field curv\/Dist graph or the size in the Grid distortion, or do all of these need to be referred to?&lt;br&gt;&nbsp;3. If the value of the Grid distortion at the maximum field angle needs to be reduced, what method should be used to solve it? I have tried using DIMX, DISG, etc. operators to reduce it, but the effect seems not very obvious.&lt;br&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/08\/21-08-2025-1755744122-mceclip0.png\" width=\"502\" height=\"412\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/08\/21-08-2025-1755744154-mceclip1.png\" width=\"421\" height=\"407\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/08\/21-08-2025-1755744177-mceclip2.png\" width=\"428\" height=\"412\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-439830","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27816"],"_bbp_topic_id":["439830"],"_bbp_subscription":["60655","521833"],"_bbp_author_ip":["2409:8918:cd:4944:9895:62d5:b8e5:4f57"],"_bbp_last_reply_id":["439914"],"_bbp_last_active_id":["439914"],"_bbp_last_active_time":["2025-08-22 03:33:32"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["60655","521833"],"_btv_view_count":["271"],"_bbp_topic_status":["unanswered"]},"test":"2973391932qq-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/439830","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\/439830\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=439830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}