lepu-test-platform-web/node_modules/echarts/lib/chart/heatmap/HeatmapView.js

281 lines
9.7 KiB
JavaScript

/*
* 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.
*/
var _config = require("../../config");
var __DEV__ = _config.__DEV__;
var echarts = require("../../echarts");
var graphic = require("../../util/graphic");
var HeatmapLayer = require("./HeatmapLayer");
var zrUtil = require("zrender/lib/core/util");
/*
* 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.
*/
function getIsInPiecewiseRange(dataExtent, pieceList, selected) {
var dataSpan = dataExtent[1] - dataExtent[0];
pieceList = zrUtil.map(pieceList, function (piece) {
return {
interval: [(piece.interval[0] - dataExtent[0]) / dataSpan, (piece.interval[1] - dataExtent[0]) / dataSpan]
};
});
var len = pieceList.length;
var lastIndex = 0;
return function (val) {
// Try to find in the location of the last found
for (var i = lastIndex; i < len; i++) {
var interval = pieceList[i].interval;
if (interval[0] <= val && val <= interval[1]) {
lastIndex = i;
break;
}
}
if (i === len) {
// Not found, back interation
for (var i = lastIndex - 1; i >= 0; i--) {
var interval = pieceList[i].interval;
if (interval[0] <= val && val <= interval[1]) {
lastIndex = i;
break;
}
}
}
return i >= 0 && i < len && selected[i];
};
}
function getIsInContinuousRange(dataExtent, range) {
var dataSpan = dataExtent[1] - dataExtent[0];
range = [(range[0] - dataExtent[0]) / dataSpan, (range[1] - dataExtent[0]) / dataSpan];
return function (val) {
return val >= range[0] && val <= range[1];
};
}
function isGeoCoordSys(coordSys) {
var dimensions = coordSys.dimensions; // Not use coorSys.type === 'geo' because coordSys maybe extended
return dimensions[0] === 'lng' && dimensions[1] === 'lat';
}
var _default = echarts.extendChartView({
type: 'heatmap',
render: function (seriesModel, ecModel, api) {
var visualMapOfThisSeries;
ecModel.eachComponent('visualMap', function (visualMap) {
visualMap.eachTargetSeries(function (targetSeries) {
if (targetSeries === seriesModel) {
visualMapOfThisSeries = visualMap;
}
});
});
this.group.removeAll();
this._incrementalDisplayable = null;
var coordSys = seriesModel.coordinateSystem;
if (coordSys.type === 'cartesian2d' || coordSys.type === 'calendar') {
this._renderOnCartesianAndCalendar(seriesModel, api, 0, seriesModel.getData().count());
} else if (isGeoCoordSys(coordSys)) {
this._renderOnGeo(coordSys, seriesModel, visualMapOfThisSeries, api);
}
},
incrementalPrepareRender: function (seriesModel, ecModel, api) {
this.group.removeAll();
},
incrementalRender: function (params, seriesModel, ecModel, api) {
var coordSys = seriesModel.coordinateSystem;
if (coordSys) {
this._renderOnCartesianAndCalendar(seriesModel, api, params.start, params.end, true);
}
},
_renderOnCartesianAndCalendar: function (seriesModel, api, start, end, incremental) {
var coordSys = seriesModel.coordinateSystem;
var width;
var height;
if (coordSys.type === 'cartesian2d') {
var xAxis = coordSys.getAxis('x');
var yAxis = coordSys.getAxis('y');
width = xAxis.getBandWidth();
height = yAxis.getBandWidth();
}
var group = this.group;
var data = seriesModel.getData();
var itemStyleQuery = 'itemStyle';
var hoverItemStyleQuery = 'emphasis.itemStyle';
var labelQuery = 'label';
var hoverLabelQuery = 'emphasis.label';
var style = seriesModel.getModel(itemStyleQuery).getItemStyle(['color']);
var hoverStl = seriesModel.getModel(hoverItemStyleQuery).getItemStyle();
var labelModel = seriesModel.getModel(labelQuery);
var hoverLabelModel = seriesModel.getModel(hoverLabelQuery);
var coordSysType = coordSys.type;
var dataDims = coordSysType === 'cartesian2d' ? [data.mapDimension('x'), data.mapDimension('y'), data.mapDimension('value')] : [data.mapDimension('time'), data.mapDimension('value')];
for (var idx = start; idx < end; idx++) {
var rect;
if (coordSysType === 'cartesian2d') {
// Ignore empty data
if (isNaN(data.get(dataDims[2], idx))) {
continue;
}
var point = coordSys.dataToPoint([data.get(dataDims[0], idx), data.get(dataDims[1], idx)]);
rect = new graphic.Rect({
shape: {
x: Math.floor(Math.round(point[0]) - width / 2),
y: Math.floor(Math.round(point[1]) - height / 2),
width: Math.ceil(width),
height: Math.ceil(height)
},
style: {
fill: data.getItemVisual(idx, 'color'),
opacity: data.getItemVisual(idx, 'opacity')
}
});
} else {
// Ignore empty data
if (isNaN(data.get(dataDims[1], idx))) {
continue;
}
rect = new graphic.Rect({
z2: 1,
shape: coordSys.dataToRect([data.get(dataDims[0], idx)]).contentShape,
style: {
fill: data.getItemVisual(idx, 'color'),
opacity: data.getItemVisual(idx, 'opacity')
}
});
}
var itemModel = data.getItemModel(idx); // Optimization for large datset
if (data.hasItemOption) {
style = itemModel.getModel(itemStyleQuery).getItemStyle(['color']);
hoverStl = itemModel.getModel(hoverItemStyleQuery).getItemStyle();
labelModel = itemModel.getModel(labelQuery);
hoverLabelModel = itemModel.getModel(hoverLabelQuery);
}
var rawValue = seriesModel.getRawValue(idx);
var defaultText = '-';
if (rawValue && rawValue[2] != null) {
defaultText = rawValue[2];
}
graphic.setLabelStyle(style, hoverStl, labelModel, hoverLabelModel, {
labelFetcher: seriesModel,
labelDataIndex: idx,
defaultText: defaultText,
isRectText: true
});
rect.setStyle(style);
graphic.setHoverStyle(rect, data.hasItemOption ? hoverStl : zrUtil.extend({}, hoverStl));
rect.incremental = incremental; // PENDING
if (incremental) {
// Rect must use hover layer if it's incremental.
rect.useHoverLayer = true;
}
group.add(rect);
data.setItemGraphicEl(idx, rect);
}
},
_renderOnGeo: function (geo, seriesModel, visualMapModel, api) {
var inRangeVisuals = visualMapModel.targetVisuals.inRange;
var outOfRangeVisuals = visualMapModel.targetVisuals.outOfRange; // if (!visualMapping) {
// throw new Error('Data range must have color visuals');
// }
var data = seriesModel.getData();
var hmLayer = this._hmLayer || this._hmLayer || new HeatmapLayer();
hmLayer.blurSize = seriesModel.get('blurSize');
hmLayer.pointSize = seriesModel.get('pointSize');
hmLayer.minOpacity = seriesModel.get('minOpacity');
hmLayer.maxOpacity = seriesModel.get('maxOpacity');
var rect = geo.getViewRect().clone();
var roamTransform = geo.getRoamTransform();
rect.applyTransform(roamTransform); // Clamp on viewport
var x = Math.max(rect.x, 0);
var y = Math.max(rect.y, 0);
var x2 = Math.min(rect.width + rect.x, api.getWidth());
var y2 = Math.min(rect.height + rect.y, api.getHeight());
var width = x2 - x;
var height = y2 - y;
var dims = [data.mapDimension('lng'), data.mapDimension('lat'), data.mapDimension('value')];
var points = data.mapArray(dims, function (lng, lat, value) {
var pt = geo.dataToPoint([lng, lat]);
pt[0] -= x;
pt[1] -= y;
pt.push(value);
return pt;
});
var dataExtent = visualMapModel.getExtent();
var isInRange = visualMapModel.type === 'visualMap.continuous' ? getIsInContinuousRange(dataExtent, visualMapModel.option.range) : getIsInPiecewiseRange(dataExtent, visualMapModel.getPieceList(), visualMapModel.option.selected);
hmLayer.update(points, width, height, inRangeVisuals.color.getNormalizer(), {
inRange: inRangeVisuals.color.getColorMapper(),
outOfRange: outOfRangeVisuals.color.getColorMapper()
}, isInRange);
var img = new graphic.Image({
style: {
width: width,
height: height,
x: x,
y: y,
image: hmLayer.canvas
},
silent: true
});
this.group.add(img);
},
dispose: function () {}
});
module.exports = _default;