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metamod:faq [2010-09-27 19:00:48] steingod |
metamod:faq [2022-05-31 09:29:32] (current) |
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===== Operation and maintenance ===== | ===== Operation and maintenance ===== | ||
+ | |||
+ | ==== Which metadata standards are supported ==== | ||
+ | |||
+ | The [[: | ||
+ | * GCMD DIF | ||
+ | * ISO19115 | ||
+ | * MM2 | ||
+ | The native format of METAMOD is MM2 and this is connected to the datamodel used in the database. As of version 2.13 work is ongoing to support a new format named MMD which makes translation to DIF and ISO easier. For a new format to be supported, modifications of the software is required. | ||
==== How do I remove datasets? ==== | ==== How do I remove datasets? ==== | ||
- | FIXME | + | The best solution is to use the administration interface (require login and appropriate user rights) and the " |
+ | |||
+ | Unused or obsolete metadata files may be removed from the XML directory. Any warnings caused by this will be removed after full reinitialisation of the database. | ||
+ | |||
+ | ==== How do I edit metadata? ==== | ||
+ | |||
+ | FIXME - A new editor has been developed, but not fully integrated yet. | ||
+ | |||
+ | The preferred solution is to use the metadata editor included in the software. This is launched using the "File upload" | ||
+ | |||
+ | Sometimes, the solution above is insufficient. Under such conditions, direct modification of metadata and import of these from the webrun directory using '' | ||
+ | |||
+ | ==== How do I control visualisation and transformation of datasets ==== | ||
+ | |||
+ | Visualisation and transformation of datasets are configured through metadata. | ||
+ | |||
+ | For OGC WMS to be activated for a dataset a section similar to the one below is required. | ||
+ | |||
+ | < | ||
+ | <wmsInfo xmlns: | ||
+ | < | ||
+ | < | ||
+ | <w:layer name=" | ||
+ | <w:layer name=" | ||
+ | <w:layer name=" | ||
+ | <w:layer name=" | ||
+ | </ | ||
+ | </ | ||
+ | </ | ||
+ | |||
+ | This section describes the initial view to present and the layers that are available. If the number of layers should be truncated, add '' | ||
+ | |||
+ | To enable transformation of a gridded dataset, add '' | ||
+ | |||
+ | If the dataset is not a gridded dataset, but e.g. a timeseries, addition of a MM2 field named '' | ||
+ | |||
+ | < | ||
+ | < | ||
+ | </ | ||
+ | |||
+ | Where the first variable is used as the X axis. The others (up to two) will be plotted on the Y axis. | ||
+ | |||
+ | ==== How do I reinitialise the database? ==== | ||
+ | |||
+ | Use the following recipe (information in <> to be substituted as appropriate): | ||
- | ==== How do I change metadata? ==== | + | - sudo / |
+ | - sudo / | ||
+ | - sudo -u <web server owner> < | ||
+ | - sudo / | ||
+ | - sudo / | ||
- | FIXME | + | ==== Manual modification of metadata ==== |
+ | This is possible provided the user has the correct priveliges. XML-files in the XML-directory may be edited manually and inserted in the database utilising the script '' | ||
===== Metadata exchange ===== | ===== Metadata exchange ===== | ||
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===== File formats ===== | ===== File formats ===== | ||
+ | |||
+ | ==== File formats relevance for METAMOD ==== | ||
+ | |||
+ | METAMOD is essentially agnostic concerning file formats. However, [[# | ||
+ | |||
+ | Basically METAMOD can relate to any file as long as the metadata are created manually and uploaded, but metadata can be extracted automatically from NetCDF/CF files. | ||
==== NetCDF/CF ==== | ==== NetCDF/CF ==== | ||
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One possible cause can be that there is a conflict between users. Please remember that all scripts and processes has to be run under the user that owns the web server (e.g. www-user or www-data). If this is not the case, try removing the '' | One possible cause can be that there is a conflict between users. Please remember that all scripts and processes has to be run under the user that owns the web server (e.g. www-user or www-data). If this is not the case, try removing the '' | ||
+ | |||
+ | Another possible cause is that the XML-information is inconsistent/ | ||
==== Why is METAMOD not showing the data I uploaded? ==== | ==== Why is METAMOD not showing the data I uploaded? ==== | ||
One possible cause can be that the dataset tag is not correct. Check the contents of the '' | One possible cause can be that the dataset tag is not correct. Check the contents of the '' | ||
+ | |||
+ | See [[#Why is METAMOD not including the XML-information located in the webrun directory? |