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Co-authored-by: Shefali Joshi <simplyrender@gmail.com>
127 lines
7.4 KiB
Markdown
127 lines
7.4 KiB
Markdown
# Open MCT [![license](https://img.shields.io/badge/license-Apache%202.0-blue.svg)](http://www.apache.org/licenses/LICENSE-2.0) [![Language grade: JavaScript](https://img.shields.io/lgtm/grade/javascript/g/nasa/openmct.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/nasa/openmct/context:javascript)
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Open MCT (Open Mission Control Technologies) is a next-generation mission control framework for visualization of data on desktop and mobile devices. It is developed at NASA's Ames Research Center, and is being used by NASA for data analysis of spacecraft missions, as well as planning and operation of experimental rover systems. As a generalizable and open source framework, Open MCT could be used as the basis for building applications for planning, operation, and analysis of any systems producing telemetry data.
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Please visit our [Official Site](https://nasa.github.io/openmct/) and [Getting Started Guide](https://nasa.github.io/openmct/getting-started/)
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Once you've created something amazing with Open MCT, showcase your work in our GitHub Discussions [Show and Tell](https://github.com/nasa/openmct/discussions/categories/show-and-tell) section. We love seeing unique and wonderful implementations of Open MCT!
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## See Open MCT in Action
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Try Open MCT now with our [live demo](https://openmct-demo.herokuapp.com/).
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![Demo](https://nasa.github.io/openmct/static/res/images/Open-MCT.Browse.Layout.Mars-Weather-1.jpg)
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## Building and Running Open MCT Locally
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Building and running Open MCT in your local dev environment is very easy. Be sure you have [Git](https://git-scm.com/downloads) and [Node.js](https://nodejs.org/) installed, then follow the directions below. Need additional information? Check out the [Getting Started](https://nasa.github.io/openmct/getting-started/) page on our website.
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(These instructions assume you are installing as a non-root user; developers have [reported issues](https://github.com/nasa/openmct/issues/1151) running these steps with root privileges.)
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1. Clone the source code
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`git clone https://github.com/nasa/openmct.git`
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2. Install development dependencies
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`npm install`
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3. Run a local development server
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`npm start`
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Open MCT is now running, and can be accessed by pointing a web browser at [http://localhost:8080/](http://localhost:8080/)
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## Open MCT v1.0.0
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This represents a major overhaul of Open MCT with significant changes under the hood. We aim to maintain backward compatibility but if you do find compatibility issues, please let us know by filing an issue in this repository. If you are having major issues with v1.0.0 please check-out the v0.14.0 tag until we can resolve them for you.
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If you are migrating an application built with Open MCT as a dependency to v1.0.0 from an earlier version, please refer to [our migration guide](https://nasa.github.io/openmct/documentation/migration-guide).
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## Documentation
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Documentation is available on the [Open MCT website](https://nasa.github.io/openmct/documentation/).
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### Examples
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The clearest examples for developing Open MCT plugins are in the
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[tutorials](https://github.com/nasa/openmct-tutorial) provided in
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our documentation.
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We want Open MCT to be as easy to use, install, run, and develop for as
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possible, and your feedback will help us get there! Feedback can be provided via [GitHub issues](https://github.com/nasa/openmct/issues/new/choose), [Starting a GitHub Discussion](https://github.com/nasa/openmct/discussions), or by emailing us at [arc-dl-openmct@mail.nasa.gov](mailto:arc-dl-openmct@mail.nasa.gov).
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## Building Applications With Open MCT
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Open MCT is built using [`npm`](http://npmjs.com/) and [`webpack`](https://webpack.js.org/).
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See our documentation for a guide on [building Applications with Open MCT](https://github.com/nasa/openmct/blob/master/API.md#starting-an-open-mct-application).
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## Plugins
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Open MCT can be extended via plugins that make calls to the Open MCT API. A plugin is a group
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of software components (including source code and resources such as images and HTML templates)
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that is intended to be added or removed as a single unit.
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As well as providing an extension mechanism, most of the core Open MCT codebase is also
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written as plugins.
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For information on writing plugins, please see [our API documentation](https://github.com/nasa/openmct/blob/master/API.md#plugins).
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## Tests
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Tests are written for [Jasmine 3](https://jasmine.github.io/api/3.1/global)
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and run by [Karma](http://karma-runner.github.io). To run:
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`npm test`
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The test suite is configured to load any scripts ending with `Spec.js` found
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in the `src` hierarchy. Full configuration details are found in
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`karma.conf.js`. By convention, unit test scripts should be located
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alongside the units that they test; for example, `src/foo/Bar.js` would be
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tested by `src/foo/BarSpec.js`. (For legacy reasons, some existing tests may
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be located in separate `test` folders near the units they test, but the
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naming convention is otherwise the same.)
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### Test Reporting
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When `npm test` is run, test results will be written as HTML to
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`dist/reports/tests/`. Code coverage information is written to `dist/reports/coverage`.
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# Glossary
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Certain terms are used throughout Open MCT with consistent meanings
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or conventions. Any deviations from the below are issues and should be
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addressed (either by updating this glossary or changing code to reflect
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correct usage.) Other developer documentation, particularly in-line
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documentation, may presume an understanding of these terms.
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* _plugin_: A plugin is a removable, reusable grouping of software elements.
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The application is composed of plugins.
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* _composition_: In the context of a domain object, this refers to the set of
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other domain objects that compose or are contained by that object. A domain
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object's composition is the set of domain objects that should appear
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immediately beneath it in a tree hierarchy. A domain object's composition is
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described in its model as an array of id's; its composition capability
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provides a means to retrieve the actual domain object instances associated
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with these identifiers asynchronously.
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* _description_: When used as an object property, this refers to the human-readable
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description of a thing; usually a single sentence or short paragraph.
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(Most often used in the context of extensions, domain
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object models, or other similar application-specific objects.)
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* _domain object_: A meaningful object to the user; a distinct thing in
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the work support by Open MCT. Anything that appears in the left-hand
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tree is a domain object.
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* _identifier_: A tuple consisting of a namespace and a key, which together uniquely
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identifies a domain object.
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* _model_: The persistent state associated with a domain object. A domain
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object's model is a JavaScript object which can be converted to JSON
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without losing information (that is, it contains no methods.)
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* _name_: When used as an object property, this refers to the human-readable
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name for a thing. (Most often used in the context of extensions, domain
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object models, or other similar application-specific objects.)
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* _navigation_: Refers to the current state of the application with respect
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to the user's expressed interest in a specific domain object; e.g. when
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a user clicks on a domain object in the tree, they are _navigating_ to
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it, and it is thereafter considered the _navigated_ object (until the
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user makes another such choice.)
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* _namespace_: A name used to identify a persistence store. A running open MCT
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application could potentially use multiple persistence stores, with the
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