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Plot.ts
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Plot.ts
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/*
* Copyright 2017 TWO SIGMA OPEN SOURCE, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import widgets from './widgets';
import * as _ from 'underscore';
import PlotLayout from "./plot/PlotLayout";
import PlotScope from "./plot/PlotScope";
import CombinedPlotScope from "./plot/CombinedPlotScope";
const d3 = require('d3');
const OUTUPT_POINTS_LIMIT = 1000000;
const OUTUPT_POINTS_PREVIEW_NUMBER = 10000;
export class PlotModel extends widgets.DOMWidgetModel {
defaults() {
return {
...super.defaults(),_model_name : 'PlotModel',
_view_name : 'PlotView',
_model_module : 'beakerx',
_view_module : 'beakerx',
_model_module_version: BEAKERX_MODULE_VERSION,
_view_module_version: BEAKERX_MODULE_VERSION
}
}
}
export class PlotView extends widgets.DOMWidgetView {
render() {
this._currentScope = null;
this.displayed.then(() => {
const plotModel = this.model.get('model');
const type = plotModel.type || 'Text';
this.limitPoints(plotModel);
switch (type) {
case 'CombinedPlot':
this.initCombinedPlot(plotModel);
break;
default:
this.initStandardPlot(plotModel);
break;
}
this.listenTo(this.model, 'change:updateData', this.handleUpdateData);
this.listenTo(this.model, 'change:model', this.handleModelUpdate);
this.listenTo(this.model, 'beakerx-tabSelected', () => {
this._currentScope.adjustModelWidth();
});
this.on('remove', () => {
if (this._currentScope instanceof CombinedPlotScope) {
this._currentScope.scopes.forEach(function(scope) {
scope.destroy();
});
} else if (this._currentScope) {
this._currentScope.destroy();
}
setTimeout(() => { this._currentScope = null; });
});
});
}
getNumberOfPointsForStandardPlot(plotModel) {
return Math.max.apply(null, plotModel.graphics_list.map((graphic) => {
const points = graphic.x ? graphic.x : graphic.y;
return points ? points.length : 0;
}));
}
truncatePointsForStandardPlot(plotModel) {
plotModel.graphics_list.forEach((graphic) => {
if (graphic.x && graphic.y) {
graphic.x = graphic.x.slice(0, OUTUPT_POINTS_PREVIEW_NUMBER);
graphic.y = graphic.y.slice(0, OUTUPT_POINTS_PREVIEW_NUMBER);
}
});
}
limitPoints(plotModel) {
let numberOfPoints;
if (!_.isArray(plotModel.graphics_list)) {
return;
}
if (!plotModel.plots) {
numberOfPoints = this.getNumberOfPointsForStandardPlot(plotModel);
this.limitPointsForStandardPlot(plotModel, numberOfPoints);
return;
}
numberOfPoints = Math.max.apply(plotModel.plots.map(this.getNumberOfPointsForStandardPlot));
plotModel.plots.forEach((standardPlotModel) => {
this.limitPointsForStandardPlot(standardPlotModel, numberOfPoints);
});
}
limitPointsForStandardPlot(plotModel, numberOfPoints) {
this.truncatePointsForStandardPlot(plotModel);
plotModel.numberOfPoints = numberOfPoints;
plotModel.outputPointsLimit = OUTUPT_POINTS_LIMIT;
plotModel.outputPointsPreviewNumber = OUTUPT_POINTS_PREVIEW_NUMBER;
}
handleModelUpdate() {
const newModel = this.model.get('model');
this._currentScope.updateModelData && this._currentScope.updateModelData(newModel);
this._currentScope.updatePlot();
}
handleUpdateData() {
const change = this.model.get('updateData');
const currentModel = this.model.get('model');
const updatedModel = _.extend(currentModel, change);
this.model.set('model', updatedModel, {updated_view: this});
this.handleModellUpdate();
}
initStandardPlot(model) {
const wrapperId = `wrap_${this.model.model_id}`;
this._currentScope = new PlotScope(wrapperId);
const tmpl = PlotLayout.buildTemplate(wrapperId);
const tmplElement = $(tmpl);
tmplElement.appendTo(this.$el);
this._currentScope.setWidgetModel(this.model);
this._currentScope.setElement(tmplElement.children('.dtcontainer'));
this._currentScope.setModelData(model);
this._currentScope.setWidgetView(this);
this._currentScope.init(this.model);
}
initCombinedPlot(model) {
this._currentScope = new CombinedPlotScope(`wrap_${this.id}`);
const tmpl = this._currentScope.buildTemplate();
const tmplElement = $(tmpl);
tmplElement.appendTo(this.$el);
this._currentScope.setModelData(model);
this._currentScope.setElement(tmplElement);
this._currentScope.setWidgetView(this);
this._currentScope.init(this.model);
}
}
export default {
PlotModel,
PlotView
};