{"templateId":"markdown","sharedDataIds":{"sidebar":"sidebar-guides/sidebars.yaml"},"props":{"metadata":{"markdoc":{"tagList":["tabs","tab"]},"type":"markdown"},"seo":{"title":"Seismic Caching Reader","description":"Accelerate E&P application development and protect your innovation by consuming our Data and Domain APIs / Platform APIs.","lang":"en-US","meta":[{"name":"robots","content":"noindex"}],"llmstxt":{"hide":true,"excludeFiles":[]}},"dynamicMarkdocComponents":[],"compilationErrors":[],"ast":{"$$mdtype":"Tag","name":"article","attributes":{},"children":[{"$$mdtype":"Tag","name":"Heading","attributes":{"level":1,"id":"seismic-caching-reader","__idx":0},"children":["Seismic Caching Reader"]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"create-a-seismic-caching-reader","__idx":1},"children":[{"$$mdtype":"Tag","name":"MarkdownLink","attributes":{"href":"#/Seismic/Readers/seismicCachingReader#Reader"},"children":["#"]}," Create a Seismic Caching Reader"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Create the caching reader as a proxy for another reader."]},{"$$mdtype":"Tag","name":"Tabs","attributes":{"size":"medium"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"result","__idx":2},"children":[{"$$mdtype":"Tag","name":"MarkdownLink","attributes":{"href":"#/Seismic/Readers/seismicCachingReader#Result"},"children":["#"]}," Result"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["This tutorial demonstrates how to create a cache for traces. In this example, the ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["CachingSeismicReader"]}," is the proxy for any ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["SeismicReader"]},". It saves traces in the inner cache at the first request and retrieves them from the cache at the following requests."]},{"$$mdtype":"Tag","name":"Tabs","attributes":{"size":"medium"},"children":[{"$$mdtype":"Tag","name":"div","attributes":{"label":"main","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"ts","header":{"controls":{"copy":{}}},"source":"import { CachingReader } from \"@int/geotoolkit/seismic/data/CachingReader.ts\";\nimport { SeismicWidget } from \"@int/geotoolkit/seismic/widgets/SeismicWidget.ts\";\nimport { SeismicColors } from \"@int/geotoolkit/seismic/util/SeismicColors.ts\";\nimport { NormalizationType } from \"@int/geotoolkit/seismic/pipeline/NormalizationType.ts\";\nimport { SeismicPipeline } from \"@int/geotoolkit/seismic/pipeline/SeismicPipeline.ts\";\nimport { RemoteSeismicDataSource } from \"@int/geotoolkit/seismic/data/RemoteSeismicDataSource.ts\";\nimport { Plot } from \"@int/geotoolkit/plot/Plot.ts\";\nconst createSectionQuery = (position, key, oppositeKey) => {\n  const selectKeys = [];\n  selectKeys[0] = {\n    \"name\": key[\"key\"],\n    \"min\": position,\n    \"max\": position,\n    \"step\": key[\"increment\"],\n    \"order\": \"asc\"\n  };\n  selectKeys[1] = {\n    \"name\": oppositeKey[\"key\"],\n    \"min\": oppositeKey[\"min\"],\n    \"max\": oppositeKey[\"max\"],\n    \"step\": oppositeKey[\"increment\"],\n    \"order\": \"asc\"\n  };\n  return {\n    \"keys\": selectKeys,\n    \"options\": null,\n    \"emptyTracesKey\": {\n      \"name\": oppositeKey[\"key\"],\n      \"min\": oppositeKey[\"min\"],\n      \"max\": oppositeKey[\"max\"]\n    }\n  };\n};\nconst createReader = function(onready, onfailure) {\n  const host = \"https://demo.int.com/INTGeoServer/json\";\n  const data = new RemoteSeismicDataSource({\n    \"host\": host,\n    \"file\": \"data/seismic/Gullfaks_Amplitude.xgy\",\n    \"version\": 2\n  });\n  data.open(\n    () => {\n      const keys = data.getKeys();\n      const key = keys[0];\n      const oppositeKey = keys[1];\n      const query = createSectionQuery(key[\"min\"], key, oppositeKey);\n      data.select(query, (reader) => {\n        onready(reader);\n      });\n    },\n    (err) => {\n      onfailure(err);\n    }\n  );\n};\nconst createPipeline = function(reader) {\n  const pipeline = new SeismicPipeline({\n    \"name\": \"Seismic\",\n    \"reader\": reader,\n    \"statistics\": reader.getStatistics()\n  });\n  pipeline.setOptions({\n    \"normalization\": {\n      \"type\": NormalizationType.RMS,\n      \"scale\": 1\n    },\n    \"plot\": {\n      \"type\": {\n        \"wiggle\": false,\n        \"interpolateddensity\": true\n      },\n      \"decimationspacing\": 5\n    },\n    \"colors\": {\n      \"colormap\": SeismicColors.getDefault().createNamedColorMap(\"WhiteBlack\", 32)\n    }\n  });\n  return pipeline;\n};\nconst zoomIn = function(plot) {\n  const widget = plot.getRoot();\n  if (!(widget instanceof SeismicWidget)) {\n    return;\n  }\n  widget.zoomIn();\n};\nconst zoomOut = function(plot) {\n  const widget = plot.getRoot();\n  if (!(widget instanceof SeismicWidget)) {\n    return;\n  }\n  widget.zoomOut();\n};\nfunction createScene(canvas, cb) {\n  const widget = new SeismicWidget({\n    \"colorbar\": {\n      \"axis\": {\n        \"tickgenerator\": {\n          \"edge\": {\n            \"tickvisible\": false,\n            \"labelvisible\": false\n          }\n        }\n      }\n    },\n    \"layouttype\": \"inside\",\n    \"statusbar\": {\n      \"visible\": false\n    },\n    \"table\": {\n      \"size\": 100,\n      \"visible\": false\n    }\n  });\n  createReader((reader) => {\n    const memoryLimit = 20;\n    const cachingReader = new CachingReader(reader, memoryLimit);\n    const pipeline = createPipeline(cachingReader);\n    widget.setPipeline(pipeline);\n    widget.setScaleOptions({\n      \"tracescale\": 20,\n      \"samplescale\": 200,\n      \"deviceunit\": \"in\",\n      \"sampleunit\": \"ft\"\n    });\n    const headerFields = pipeline.getReader().getTraceHeaderFields();\n    let headerInfo;\n    for (let i = 0; i < headerFields.length; i++) {\n      const header = headerFields[i];\n      if (header.getName() === \"INLINE\" || header.getName() === \"XLINE\") {\n        widget.setTraceHeaderVisible(header, true);\n      } else if (header.getName() === \"TraceNumber\") {\n        widget.setTraceHeaderVisible(header, false);\n      }\n      headerInfo = widget.getTraceHeaderAxis(header);\n      if (headerInfo) {\n        headerInfo[\"label\"].getTextStyle().setColor(\"#6b6b6b\");\n      }\n    }\n  }, (msg) => {\n    alert(msg);\n  });\n  return new Plot({\n    \"canvaselement\": canvas,\n    \"root\": widget\n  });\n}\nexport { createScene, zoomIn, zoomOut };\n\ncreateScene(document.querySelector('[ref=\"plot\"]'));\n\n","lang":"ts"},"children":[]}]},{"$$mdtype":"Tag","name":"div","attributes":{"label":"css","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"css","header":{"controls":{"copy":{}}},"source":"\n.cg-tooltip-holder {\n  position: relative;\n}\n\n.cg-tooltip {\n  position: absolute;\n  display: block;\n  padding: 2px 12px 3px 7px;\n  overflow: visible !important;\n  font-family: Roboto, Helvetica, Arial, sans-serif;\n  font-size: 13px;\n  background: white !important;\n  opacity: 0.9;\n  color: #333333;\n  border: solid 1px gray;\n  border-radius: 5px;\n  text-align: left;\n  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);\n  border-radius: 5px;\n  margin: 0 !important;\n  z-index: 10000;\n  max-width: 400px;\n  text-wrap: normal !important;\n  white-space: normal !important;\n}\n/* Default setting for tooltip */\n.cg-tooltip-container {\n  position: absolute;\n  display: block;\n  overflow: visible !important;\n  font-family: Roboto, Helvetica, Arial, sans-serif;\n  font-size: 12px;\n  padding: 3px 7px;\n  background: #f7f7f7;\n  color: #333333;\n  border: 1px solid #938e8e;\n  opacity: 0.8;\n  text-align: left;\n  box-shadow: 3px 3px 10px #888;\n  margin: 0 !important;\n  z-index: 10000;\n  max-width: 400px;\n  text-wrap: normal !important;\n  white-space: normal !important;\n  user-select: none;\n}\n@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {\n  .cg-tooltip-container {\n    border-radius: 0;\n  }\n}\n/* Default left arrow for tooltip */\n.cg-tooltip-arrow-left::before {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  left: 0;\n  top: 50%;\n  border: 5px solid transparent;\n  border-left: 0;\n  border-right: 5px solid  #938e8e;\n  transform: translate(calc(-100%), -50%);\n}\n.cg-tooltip-arrow-left::after {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  left: 0;\n  top: 50%;\n  border: 4px solid transparent;\n  border-left: 0;\n  border-right: 4px solid #f7f7f7;\n  transform: translate(calc(-100%), -50%);\n}\n/* Default top arrow for tooltip */\n.cg-tooltip-arrow-top::before {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  left: 50%;\n  top: 0;\n  border: 5px solid transparent;\n  border-top: 0;\n  border-bottom: 5px solid #938e8e;\n  transform: translate(-50%, -100%);\n}\n.cg-tooltip-arrow-top::after {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  left: 50%;\n  top: 0;\n  border: 4px solid transparent;\n  border-top: 0;\n  border-bottom: 4px solid #f7f7f7;\n  transform: translate(-50%, -100%);\n}\n/* Default right arrow for tooltip */\n.cg-tooltip-arrow-right::before {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  right: 0;\n  top: 50%;\n  border: 5px solid transparent;\n  border-right: 0;\n  border-left: 5px solid #938e8e;\n  transform: translate(100%, -50%);\n}\n.cg-tooltip-arrow-right::after {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  right: 0;\n  top: 50%;\n  border: 4px solid transparent;\n  border-right: 0;\n  border-left: 4px solid #f7f7f7;\n  transform: translate(100%, -50%);\n}\n/* Default bottom arrow for tooltip */\n.cg-tooltip-arrow-bottom::before {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  left: 50%;\n  bottom: 0px;\n  border: 5px solid transparent;\n  border-bottom: 0;\n  border-top: 5px solid #938e8e;\n  transform: translate(-50%, 100%);\n  z-index: 10000;\n}\n.cg-tooltip-arrow-bottom::after {\n  content: '';\n  position: absolute;\n  display: block;\n  width: 0px;\n  left: 50%;\n  bottom: 0;\n  border: 4px solid transparent;\n  border-bottom: 0;\n  border-top: 4px solid #f7f7f7;\n  transform: translate(-50%, 100%);\n  z-index: 10000;\n}\n/* Tooltip item name */\n/* Tooltip item value */\n/* .cg-tooltip-item-value */\n/* Tooltip item value */\n.cg-tooltip-item-unit {\n  text-transform: none;\n}\n\n.cg-tooltip-item-name {\n    text-transform: capitalize;\n    white-space: nowrap;\n    vertical-align: middle;\n    font-size: 13px;\n}\n.cg-tooltip-row {\n  display: flex;\n  flex-direction: row;\n  align-items: center;\n  white-space: pre-wrap;\n  font-size: 12px;\n  line-height: 100%;\n  margin: 1px 0;\n}\n.cg-tooltip-title {\n  font-size: 13px;\n  height: 14px;\n  text-transform: capitalize;\n}\n.cg-tooltip-title .cg-tooltip-symbol {\n  margin-right: 0 !important;\n}\n.cg-tooltip-title-name {\n  vertical-align: middle;\n}\n.cg-tooltip-row + .cg-tooltip-row {\n  margin-top: 4px;\n}\n.cg-tooltip-row.cg-tooltip-title + .cg-tooltip-row {\n  margin-top: 5px;\n}\n.cg-tooltip-item-value + .cg-tooltip-item-unit {\n    margin-left: 1px;\n}\n/* Tooltip symbol */\n.cg-tooltip-symbol-cell {\n  display: inline-flex;\n  min-width: 13px; /* 10px size + 3px margin */\n}\n.cg-tooltip-symbol {\n  margin-right: 3px;\n  background-color: transparent;\n  display: block;\n}\n.cg-tooltip-symbol > img {\n  display: block;\n}\n.cg-tooltip-list-cell {\n  display: inline-flex;\n}\n.cg-tooltip-list-symbol {\n  display: block;\n  margin-right: 3px;\n  width: 6px;\n  height: 6px;\n  vertical-align: middle;\n  border-radius: 50%;\n  border: 1px solid rgba(0,0,0,.4);\n}\n.cg-tooltip-symbol-legacy {\n  border-radius: 4px;\n  margin-right: 5px;\n  height: 8px;\n  width: 8px;\n  display: inline-block;\n}\n.cg-tooltip-title-legacy {\n  font-weight: 900;\n}\n\n/* Tooltip symbol circle */\n.cg-tooltip-symbol.circle {\n  height: 10px;\n  width: 10px;\n  display: inline-block;\n  border-radius: 50%;\n  border: 1px solid rgba(0,0,0,.4);\n}\n/* Tooltip symbol line */\n.cg-tooltip-symbol.line {\n    height: 10px;\n    width: 10px;\n    display: inline-block;\n    transform: scale(1.2, 0.2);\n}\n/* Tooltip symbol diamond */\n.cg-tooltip-symbol.diamond {\n    height: 10px;\n    width: 10px;\n    display: inline-block;\n    transform: rotate(45deg);\n    border-radius: 0px;\n}\n/* Tooltip symbol square */\n.cg-tooltip-symbol.square {\n    height: 10px;\n    width: 10px;\n    display: inline-block;\n    border-radius: 0px;\n    border: 1px solid rgba(0,0,0,.4);\n}\n\n","lang":"css"},"children":[]}]}]},{"$$mdtype":"Tag","name":"iframe","attributes":{"src":"https://dc2-documentation.s3.amazonaws.com/documentation/slb-docs-test/5.0/examples/vue/tutorials/index.html#/Seismic/Readers/seismicCachingReader?section=Result&extract=true","width":"100%","height":"548.5px","style":{"border":"none"}},"children":[]}]},"headings":[{"value":"Seismic Caching Reader","id":"seismic-caching-reader","depth":1},{"value":"Create a Seismic Caching Reader","id":"create-a-seismic-caching-reader","depth":3},{"value":"Result","id":"result","depth":3}],"frontmatter":{"title":"Seismic Caching Reader","seo":{"title":"Seismic Caching Reader"}},"lastModified":"2026-02-11T19:54:32.000Z","pagePropGetterError":{"message":"","name":""}},"slug":"/solutions/geotoolkit/tutorials/seismic/readers/seismic-caching-reader","userData":{"isAuthenticated":false,"teams":["anonymous"]},"isPublic":true}