{"id":394790,"date":"2024-11-21T14:42:25","date_gmt":"2024-11-21T14:42:25","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/"},"modified":"2024-11-21T14:42:25","modified_gmt":"2024-11-21T14:42:25","slug":"optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/","title":{"rendered":"Optic studio-zemax operand values are different from the plot (Genc and Denc)"},"content":{"rendered":"<p>&lt;p class=&#8221;xmsonormal&#8221;&gt;I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC report after I apply any clocking or decentering adjustments to a segment. However, in the nominal model&mdash;where no disturbances are applied to the segments&mdash;the GENC and DENC values are accurate. I have used different sampling does effect DENC but not GENC&lt;\/p&gt;&lt;p class=&#8221;xmsonormal&#8221;&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/21-11-2024-1732200056-1.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p class=&#8221;xmsonormal&#8221;&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/21-11-2024-1732200089-2.png\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-394790","topic","type-topic","status-publish","hentry","topic-tag-merit-function","topic-tag-non-sequential","topic-tag-opticstudio","topic-tag-optimization"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Optic studio-zemax operand values are different from the plot (Genc and Denc) | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-11-21T14:42:25+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-11-21T14:42:25+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Optic studio-zemax operand values are different from the plot (Genc and Denc) | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/optimization\\\/#listItem\",\"name\":\"optimization\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/optimization\\\/#listItem\",\"position\":3,\"name\":\"optimization\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/optimization\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\\\/#listItem\",\"name\":\"Optic studio-zemax operand values are different from the plot (Genc and Denc)\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\\\/#listItem\",\"position\":4,\"name\":\"Optic studio-zemax operand values are different from the plot (Genc and Denc)\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/optimization\\\/#listItem\",\"name\":\"optimization\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\\\/\",\"name\":\"Optic studio-zemax operand values are different from the plot (Genc and Denc) | Ansys Learning Forum\",\"description\":\"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\\\/#breadcrumblist\"},\"datePublished\":\"2024-11-21T14:42:25+00:00\",\"dateModified\":\"2024-11-21T14:42:25+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Optic studio-zemax operand values are different from the plot (Genc and Denc) | Ansys Learning Forum","description":"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/forum\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/optimization\/#listItem","name":"optimization"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/optimization\/#listItem","position":3,"name":"optimization","item":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/optimization\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/#listItem","name":"Optic studio-zemax operand values are different from the plot (Genc and Denc)"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/#listItem","position":4,"name":"Optic studio-zemax operand values are different from the plot (Genc and Denc)","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/optimization\/#listItem","name":"optimization"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/","name":"Optic studio-zemax operand values are different from the plot (Genc and Denc) | Ansys Learning Forum","description":"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/#breadcrumblist"},"datePublished":"2024-11-21T14:42:25+00:00","dateModified":"2024-11-21T14:42:25+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Optic studio-zemax operand values are different from the plot (Genc and Denc) | Ansys Learning Forum","og:description":"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/","article:published_time":"2024-11-21T14:42:25+00:00","article:modified_time":"2024-11-21T14:42:25+00:00","twitter:card":"summary_large_image","twitter:title":"Optic studio-zemax operand values are different from the plot (Genc and Denc) | Ansys Learning Forum","twitter:description":"I have a segmented telescope model, which is using non-sequential components to represent the segments. The issue arises with the DENC and GENC operands, which return incorrect values when I introduce disturbances to the segments(for example, center and clocking). The encircled energy value I observe in the plot differs from what GENC and DENC"},"aioseo_meta_data":{"post_id":"394790","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2025-10-19 09:26:00","updated":"2025-10-19 09:26:00","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/optimization\/\" title=\"optimization\">optimization<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tOptic studio-zemax operand values are different from the plot (Genc and Denc)\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"optimization","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/optimization\/"},{"label":"Optic studio-zemax operand values are different from the plot (Genc and Denc)","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/optic-studio-zemax-operand-values-are-different-from-the-plot-genc-and-denc\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["369211","50911","29675"],"_bbp_author_ip":["150.204.240.232"],"_btv_view_count":["965"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["394790"],"_bbp_forum_id":["27816"],"_bbp_engagement":["29675","50911","369211"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["404060"],"_bbp_last_active_id":["404060"],"_bbp_last_active_time":["2025-01-08 08:46:14"]},"test":"a-ranjbarljmu-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/394790","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\/394790\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=394790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}