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79 lines
2.9 KiB
JavaScript
79 lines
2.9 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2016, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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define(
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[],
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function () {
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/**
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* Tracks the limit state of telemetry objects being plotted.
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* @memberof platform/features/plot
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* @constructor
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* @param {platform/telemetry.TelemetryHandle} handle the handle
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* to telemetry access
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* @param {string} range the key to use when looking up range values
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*/
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function PlotLimitTracker(handle, range) {
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this.handle = handle;
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this.range = range;
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this.legendClasses = {};
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}
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/**
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* Update limit states to reflect the latest data.
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*/
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PlotLimitTracker.prototype.update = function () {
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var legendClasses = {},
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range = this.range,
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handle = this.handle;
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function updateLimit(telemetryObject) {
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var limit = telemetryObject.getCapability('limit'),
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datum = handle.getDatum(telemetryObject);
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if (limit && datum) {
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legendClasses[telemetryObject.getId()] =
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(limit.evaluate(datum, range) || {}).cssClass;
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}
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}
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handle.getTelemetryObjects().forEach(updateLimit);
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this.legendClasses = legendClasses;
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};
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/**
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* Get the CSS class associated with any limit violations for this
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* telemetry object.
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* @param {DomainObject} domainObject the telemetry object to check
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* @returns {string} the CSS class name, if any
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*/
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PlotLimitTracker.prototype.getLegendClass = function (domainObject) {
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var id = domainObject && domainObject.getId();
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return id && this.legendClasses[id];
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};
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return PlotLimitTracker;
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}
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);
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