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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 * as graphic from '../../util/graphic';
import ChartView from '../../view/Chart';
var DEFAULT_SMOOTH = 0.3;
var ParallelView = ChartView.extend({
type: 'parallel',
init: function () {
/**
* @type {module:zrender/container/Group}
* @private
*/
this._dataGroup = new graphic.Group();
this.group.add(this._dataGroup);
/**
* @type {module:echarts/data/List}
*/
this._data;
/**
* @type {boolean}
*/
this._initialized;
},
/**
* @override
*/
render: function (seriesModel, ecModel, api, payload) {
var dataGroup = this._dataGroup;
var data = seriesModel.getData();
var oldData = this._data;
var coordSys = seriesModel.coordinateSystem;
var dimensions = coordSys.dimensions;
var seriesScope = makeSeriesScope(seriesModel);
data.diff(oldData)
.add(add)
.update(update)
.remove(remove)
.execute();
function add(newDataIndex) {
var line = addEl(data, dataGroup, newDataIndex, dimensions, coordSys);
updateElCommon(line, data, newDataIndex, seriesScope);
}
function update(newDataIndex, oldDataIndex) {
var line = oldData.getItemGraphicEl(oldDataIndex);
var points = createLinePoints(data, newDataIndex, dimensions, coordSys);
data.setItemGraphicEl(newDataIndex, line);
var animationModel = (payload && payload.animation === false) ? null : seriesModel;
graphic.updateProps(line, {shape: {points: points}}, animationModel, newDataIndex);
updateElCommon(line, data, newDataIndex, seriesScope);
}
function remove(oldDataIndex) {
var line = oldData.getItemGraphicEl(oldDataIndex);
dataGroup.remove(line);
}
// First create
if (!this._initialized) {
this._initialized = true;
var clipPath = createGridClipShape(
coordSys, seriesModel, function () {
// Callback will be invoked immediately if there is no animation
setTimeout(function () {
dataGroup.removeClipPath();
});
}
);
dataGroup.setClipPath(clipPath);
}
this._data = data;
},
incrementalPrepareRender: function (seriesModel, ecModel, api) {
this._initialized = true;
this._data = null;
this._dataGroup.removeAll();
},
incrementalRender: function (taskParams, seriesModel, ecModel) {
var data = seriesModel.getData();
var coordSys = seriesModel.coordinateSystem;
var dimensions = coordSys.dimensions;
var seriesScope = makeSeriesScope(seriesModel);
for (var dataIndex = taskParams.start; dataIndex < taskParams.end; dataIndex++) {
var line = addEl(data, this._dataGroup, dataIndex, dimensions, coordSys);
line.incremental = true;
updateElCommon(line, data, dataIndex, seriesScope);
}
},
dispose: function () {},
// _renderForProgressive: function (seriesModel) {
// var dataGroup = this._dataGroup;
// var data = seriesModel.getData();
// var oldData = this._data;
// var coordSys = seriesModel.coordinateSystem;
// var dimensions = coordSys.dimensions;
// var option = seriesModel.option;
// var progressive = option.progressive;
// var smooth = option.smooth ? SMOOTH : null;
// // In progressive animation is disabled, so use simple data diff,
// // which effects performance less.
// // (Typically performance for data with length 7000+ like:
// // simpleDiff: 60ms, addEl: 184ms,
// // in RMBP 2.4GHz intel i7, OSX 10.9 chrome 50.0.2661.102 (64-bit))
// if (simpleDiff(oldData, data, dimensions)) {
// dataGroup.removeAll();
// data.each(function (dataIndex) {
// addEl(data, dataGroup, dataIndex, dimensions, coordSys);
// });
// }
// updateElCommon(data, progressive, smooth);
// // Consider switch between progressive and not.
// data.__plProgressive = true;
// this._data = data;
// },
/**
* @override
*/
remove: function () {
this._dataGroup && this._dataGroup.removeAll();
this._data = null;
}
});
function createGridClipShape(coordSys, seriesModel, cb) {
var parallelModel = coordSys.model;
var rect = coordSys.getRect();
var rectEl = new graphic.Rect({
shape: {
x: rect.x,
y: rect.y,
width: rect.width,
height: rect.height
}
});
var dim = parallelModel.get('layout') === 'horizontal' ? 'width' : 'height';
rectEl.setShape(dim, 0);
graphic.initProps(rectEl, {
shape: {
width: rect.width,
height: rect.height
}
}, seriesModel, cb);
return rectEl;
}
function createLinePoints(data, dataIndex, dimensions, coordSys) {
var points = [];
for (var i = 0; i < dimensions.length; i++) {
var dimName = dimensions[i];
var value = data.get(data.mapDimension(dimName), dataIndex);
if (!isEmptyValue(value, coordSys.getAxis(dimName).type)) {
points.push(coordSys.dataToPoint(value, dimName));
}
}
return points;
}
function addEl(data, dataGroup, dataIndex, dimensions, coordSys) {
var points = createLinePoints(data, dataIndex, dimensions, coordSys);
var line = new graphic.Polyline({
shape: {points: points},
silent: true,
z2: 10
});
dataGroup.add(line);
data.setItemGraphicEl(dataIndex, line);
return line;
}
function makeSeriesScope(seriesModel) {
var smooth = seriesModel.get('smooth', true);
smooth === true && (smooth = DEFAULT_SMOOTH);
return {
lineStyle: seriesModel.getModel('lineStyle').getLineStyle(),
smooth: smooth != null ? smooth : DEFAULT_SMOOTH
};
}
function updateElCommon(el, data, dataIndex, seriesScope) {
var lineStyle = seriesScope.lineStyle;
if (data.hasItemOption) {
var lineStyleModel = data.getItemModel(dataIndex).getModel('lineStyle');
lineStyle = lineStyleModel.getLineStyle();
}
el.useStyle(lineStyle);
var elStyle = el.style;
elStyle.fill = null;
// lineStyle.color have been set to itemVisual in module:echarts/visual/seriesColor.
elStyle.stroke = data.getItemVisual(dataIndex, 'color');
// lineStyle.opacity have been set to itemVisual in parallelVisual.
elStyle.opacity = data.getItemVisual(dataIndex, 'opacity');
seriesScope.smooth && (el.shape.smooth = seriesScope.smooth);
}
// function simpleDiff(oldData, newData, dimensions) {
// var oldLen;
// if (!oldData
// || !oldData.__plProgressive
// || (oldLen = oldData.count()) !== newData.count()
// ) {
// return true;
// }
// var dimLen = dimensions.length;
// for (var i = 0; i < oldLen; i++) {
// for (var j = 0; j < dimLen; j++) {
// if (oldData.get(dimensions[j], i) !== newData.get(dimensions[j], i)) {
// return true;
// }
// }
// }
// return false;
// }
// FIXME
// 公用方法?
function isEmptyValue(val, axisType) {
return axisType === 'category'
? val == null
: (val == null || isNaN(val)); // axisType === 'value'
}
export default ParallelView;