{"templateId":"markdown","sharedDataIds":{"sidebar":"sidebar-guides/sidebars.yaml"},"props":{"metadata":{"markdoc":{"tagList":["tabs","tab"]},"type":"markdown"},"seo":{"title":"Trace Header Axis","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":"trace-header-axis","__idx":0},"children":["Trace Header Axis"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["SeismicWidget"]}," and the ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["SeismicViewWidget"]}," display the \"TraceNumber\" as the default x-axis. This tutorial demonstrates how to customize this axis to display other seismic trace headers."]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"display-seismic-trace-headers-in-axis","__idx":1},"children":[{"$$mdtype":"Tag","name":"MarkdownLink","attributes":{"href":"#/Seismic/traceHeaderAxis#General"},"children":["#"]}," Display Seismic Trace Headers in Axis"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["This example shows how to create a seismic ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["MemoryReader"]}," which has two trace headers, XLINE and INLINE. The example then shows how to create a Seismic pipeline with this reader and add the pipline to the Seismic widget.",{"$$mdtype":"Tag","name":"br","attributes":{},"children":[]},"The next steps are to set the visibility of the desired trace headers to 'true' and add the Seismic widget to the canvas."]},{"$$mdtype":"Tag","name":"Tabs","attributes":{"size":"medium"},"children":[{"$$mdtype":"Tag","name":"div","attributes":{"label":"main","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"ts","header":{"controls":{"copy":{}}},"source":"import { SeismicViewWidget } from \"@int/geotoolkit/seismic/widgets/SeismicViewWidget.ts\";\nimport { SeismicColors } from \"@int/geotoolkit/seismic/util/SeismicColors.ts\";\nimport { SeismicPipeline } from \"@int/geotoolkit/seismic/pipeline/SeismicPipeline.ts\";\nimport { FieldDesc } from \"@int/geotoolkit/seismic/data/FieldDesc.ts\";\nimport { MemoryReader } from \"@int/geotoolkit/seismic/data/MemoryReader.ts\";\nimport { Plot } from \"@int/geotoolkit/plot/Plot.ts\";\nconst createSeismicReader = function() {\n  const sampleRate = 1;\n  const sampleCount = 350;\n  const traceCount = 500;\n  const reader = new MemoryReader({\n    \"numberoftraces\": traceCount,\n    \"numberofsamples\": sampleCount,\n    \"samplerate\": sampleRate\n  }).setTraceProcessor({\n    \"getTraceData\": function(reader2, trace, traceId) {\n      const thickness = 30;\n      const start = 80;\n      for (let i = start; i < start + thickness; i++) {\n        trace[i + Math.round(thickness * Math.cos(traceId / 64))] = Math.cos(i / 2);\n      }\n    },\n    \"getDataStatistics\": function() {\n      return {\n        \"average\": 0,\n        \"min\": -1,\n        \"max\": 1,\n        \"rms\": Math.sqrt(2) / 2\n      };\n    },\n    \"getTraceHeaderFields\": function() {\n      return [\n        new FieldDesc(0, \"XLINE\"),\n        new FieldDesc(1, \"INLINE\"),\n        new FieldDesc(2, \"OFFSET\")\n      ];\n    },\n    \"getTraceHeader\": function(reader2, header, headerData, traceId) {\n      headerData[0] = traceId + 2085;\n      headerData[1] = traceId + 1085;\n      headerData[2] = traceId;\n    }\n  });\n  return reader;\n};\nconst createPipeline = function(reader) {\n  const pipeline = new SeismicPipeline({\n    \"name\": \"MemorySeismic\",\n    \"reader\": reader,\n    \"statistics\": reader.getStatistics()\n  });\n  const colorProvider = SeismicColors.getDefault();\n  pipeline.setOptions({\n    \"colors\": {\n      \"colormap\": colorProvider.createNamedColorMap(\"RedWhiteBlue\")\n    },\n    \"plot\": {\n      \"type\": {\n        \"wiggle\": true,\n        \"interpolateddensity\": true\n      },\n      \"decimationspacing\": 5\n    },\n    \"traceoffset\": 15.2\n  });\n  return pipeline;\n};\nfunction createWidget(pipeline) {\n  const widget = new SeismicViewWidget(\n    {\n      \"pipeline\": pipeline,\n      \"layouttype\": \"inside\",\n      \"axes\": {\n        \"headers\": {\n          \"options\": {\n            \"minimumspan\": 50,\n            \"color\": \"gray\"\n          },\n          \"fields\": [\n            {\n              \"name\": \"TraceNumber\",\n              \"visible\": false,\n              \"color\": \"black\"\n            },\n            {\n              \"name\": \"XLINE\",\n              \"visible\": true\n            },\n            {\n              \"name\": \"INLINE\",\n              \"visible\": true\n            },\n            {\n              \"name\": \"OFFSET\",\n              \"title\": \"OFFSET (m)\",\n              \"visible\": true\n            }\n          ]\n        }\n      }\n    }\n  );\n  return widget;\n}\nfunction createScene(canvas) {\n  const seismicReader = createSeismicReader();\n  const pipeline = createPipeline(seismicReader);\n  const widget = createWidget(pipeline);\n  return new Plot({\n    \"canvaselement\": canvas,\n    \"root\": widget\n  });\n}\nexport { 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