{"_id":"5a3aa9d2bcc254001c4bfdc1","project":"55faeacad0e22017005b8265","version":{"_id":"55faeacad0e22017005b8268","project":"55faeacad0e22017005b8265","__v":37,"createdAt":"2015-09-17T16:31:06.800Z","releaseDate":"2015-09-17T16:31:06.800Z","categories":["55faeacbd0e22017005b8269","55faf550764f50210095078e","55faf5b5626c341700fd9e96","55faf8a7825d5f19001fa386","560052f91503430d007cc88f","560054f73aa0520d00da0b1a","56005aaf6932a00d00ba7c62","56005c273aa0520d00da0b3f","5601ae7681a9670d006d164d","5601ae926811d00d00ceb487","5601aeb064866b1900f4768d","5601aee850ee460d0002224c","5601afa02499c119000faf19","5601afd381a9670d006d1652","561d4c78281aec0d00eb27b6","561d588d8ca8b90d00210219","563a5f934cc3621900ac278c","5665c5763889610d0008a29e","566710a36819320d000c2e93","56ddf6df8a5ae10e008e3926","56e1c96b2506700e00de6e83","56e1ccc4e416450e00b9e48c","56e1ccdfe63f910e00e59870","56e1cd10bc46be0e002af26a","56e1cd21e416450e00b9e48e","56e3139a51857d0e008e77be","573b4f62ef164e2900a2b881","57c9d1335fd8ca0e006308ed","57e2bd9d1e7b7220000d7fa5","57f2b992ac30911900c7c2b6","58adb5c275df0f1b001ed59b","58c81b5c6dc7140f003c3c46","595412446ed4d9001b3e7b37","59e76ce41938310028037295","5a009de510890d001c2aabfe","5a96f89c89442e002041144b","5b3f9b7267cbc90003d283a5"],"is_deprecated":false,"is_hidden":false,"is_beta":false,"is_stable":true,"codename":"v1","version_clean":"1.0.0","version":"1"},"category":{"_id":"573b4f62ef164e2900a2b881","__v":0,"project":"55faeacad0e22017005b8265","version":"55faeacad0e22017005b8268","sync":{"url":"","isSync":false},"reference":false,"createdAt":"2016-05-17T17:05:38.443Z","from_sync":false,"order":9,"slug":"algorithm-guide","title":"Algorithms"},"user":"55fae9d4825d5f19001fa379","__v":0,"parentDoc":null,"updates":[],"next":{"pages":[],"description":""},"createdAt":"2017-12-20T18:20:02.961Z","link_external":false,"link_url":"","githubsync":"","sync_unique":"","hidden":false,"api":{"results":{"codes":[]},"settings":"","auth":"required","params":[],"url":""},"isReference":false,"order":129,"body":"### Inputs\nThe following table lists all ENVI_QuerySpectralLibrary inputs.\nMandatory (optional) settings are listed as Required = True (Required = False).\n\n  Name  |  Required  |  Default  |  Valid Values  |  Description  \n--------|:----------:|-----------|----------------|---------------\nfile_types|False|N/A|string|GBDX Option. Comma seperated list of permitted file type extensions. Use this to filter input files -- Value Type: STRING`[*]`\ninput_spectral_library|False|N/A|[See ENVISPECTRALLIBRARY input type](https://gbdxdocs.digitalglobe.com/docs/envi-task-engine#section-envispectrallibrary)|Specify a spectral library from which to retrieve spectra names. -- Value Type: ENVISPECTRALLIBRARY\ninput_spectral_library_filename|False|N/A|[See ENVISPECTRALLIBRARY input type](https://gbdxdocs.digitalglobe.com/docs/envi-task-engine#section-envispectrallibrary)|Provide the file name only of the ENVI built in spectral library file. -- Value Type: STRING\n\n\n### Outputs\n\nThe following table lists all ENVI_QuerySpectralLibrary outputs.\nMandatory (optional) settings are listed as Required = True (Required = False).\n\n  Name  |  Required  |  Default  |  Valid Values  |  Description\n--------|:----------:|-----------|----------------|---------------\ntask_meta_data|False|N/A|directory|GBDX Option. Output location for task meta data such as execution log and output JSON\nspectra_names|True|N/A|string|A string array containing all spectra names for the input spectral library. -- Value Type: STRINGARRAY\n\n\n**Output structure**\n\n\n\n### Background\nFor additional background information on this task please refer to the [Harris Geospatial ENVI documentation](http://www.harrisgeospatial.com/docs/home.html) and \n[ENVI® Query Spectral Library](http://www.harrisgeospatial.com/docs/enviqueryspectrallibrarytask.html). \n\n### Contact\nIf you have any questions or issues with this task, please contact [gbdx-support:::at:::digitalglobe.com](mailto:gbdx-support@digitalglobe.com).","excerpt":"This task queries a spectral library, returning the names of all spectra in the library.\n    \n**GBDX Registered Name:** ENVI_QuerySpectralLibrary\n**Provider:** Harris Geospatial Solutions","slug":"envi-query-spectral-library","type":"basic","title":"ENVI® Query Spectral Library"}

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ENVI® Query Spectral Library

This task queries a spectral library, returning the names of all spectra in the library. **GBDX Registered Name:** ENVI_QuerySpectralLibrary **Provider:** Harris Geospatial Solutions
### Inputs The following table lists all ENVI_QuerySpectralLibrary inputs. Mandatory (optional) settings are listed as Required = True (Required = False). Name | Required | Default | Valid Values | Description --------|:----------:|-----------|----------------|--------------- file_types|False|N/A|string|GBDX Option. Comma seperated list of permitted file type extensions. Use this to filter input files -- Value Type: STRING`[*]` input_spectral_library|False|N/A|[See ENVISPECTRALLIBRARY input type](https://gbdxdocs.digitalglobe.com/docs/envi-task-engine#section-envispectrallibrary)|Specify a spectral library from which to retrieve spectra names. -- Value Type: ENVISPECTRALLIBRARY input_spectral_library_filename|False|N/A|[See ENVISPECTRALLIBRARY input type](https://gbdxdocs.digitalglobe.com/docs/envi-task-engine#section-envispectrallibrary)|Provide the file name only of the ENVI built in spectral library file. -- Value Type: STRING ### Outputs The following table lists all ENVI_QuerySpectralLibrary outputs. Mandatory (optional) settings are listed as Required = True (Required = False). Name | Required | Default | Valid Values | Description --------|:----------:|-----------|----------------|--------------- task_meta_data|False|N/A|directory|GBDX Option. Output location for task meta data such as execution log and output JSON spectra_names|True|N/A|string|A string array containing all spectra names for the input spectral library. -- Value Type: STRINGARRAY **Output structure** ### Background For additional background information on this task please refer to the [Harris Geospatial ENVI documentation](http://www.harrisgeospatial.com/docs/home.html) and [ENVI® Query Spectral Library](http://www.harrisgeospatial.com/docs/enviqueryspectrallibrarytask.html). ### Contact If you have any questions or issues with this task, please contact [gbdx-support@digitalglobe.com](mailto:gbdx-support@digitalglobe.com).