project/node_modules/echarts/lib/chart/heatmap/HeatmapView.js

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2024-07-14 15:48:34 +08:00
/*
* 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.
*/
/**
* AUTO-GENERATED FILE. DO NOT MODIFY.
*/
/*
* 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 { __extends } from "tslib";
import * as graphic from '../../util/graphic.js';
import { toggleHoverEmphasis } from '../../util/states.js';
import HeatmapLayer from './HeatmapLayer.js';
import * as zrUtil from 'zrender/lib/core/util.js';
import ChartView from '../../view/Chart.js';
import { isCoordinateSystemType } from '../../coord/CoordinateSystem.js';
import { setLabelStyle, getLabelStatesModels } from '../../label/labelStyle.js';
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) {
var i;
// Try to find in the location of the last found
for (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 (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 coordSys.type === 'geo' because coordSys maybe extended
return dimensions[0] === 'lng' && dimensions[1] === 'lat';
}
var HeatmapView = /** @class */function (_super) {
__extends(HeatmapView, _super);
function HeatmapView() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.type = HeatmapView.type;
return _this;
}
HeatmapView.prototype.render = function (seriesModel, ecModel, api) {
var visualMapOfThisSeries;
ecModel.eachComponent('visualMap', function (visualMap) {
visualMap.eachTargetSeries(function (targetSeries) {
if (targetSeries === seriesModel) {
visualMapOfThisSeries = visualMap;
}
});
});
if (process.env.NODE_ENV !== 'production') {
if (!visualMapOfThisSeries) {
throw new Error('Heatmap must use with visualMap');
}
}
// Clear previously rendered progressive elements.
this._progressiveEls = null;
this.group.removeAll();
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);
}
};
HeatmapView.prototype.incrementalPrepareRender = function (seriesModel, ecModel, api) {
this.group.removeAll();
};
HeatmapView.prototype.incrementalRender = function (params, seriesModel, ecModel, api) {
var coordSys = seriesModel.coordinateSystem;
if (coordSys) {
// geo does not support incremental rendering?
if (isGeoCoordSys(coordSys)) {
this.render(seriesModel, ecModel, api);
} else {
this._progressiveEls = [];
this._renderOnCartesianAndCalendar(seriesModel, api, params.start, params.end, true);
}
}
};
HeatmapView.prototype.eachRendered = function (cb) {
graphic.traverseElements(this._progressiveEls || this.group, cb);
};
HeatmapView.prototype._renderOnCartesianAndCalendar = function (seriesModel, api, start, end, incremental) {
var coordSys = seriesModel.coordinateSystem;
var isCartesian2d = isCoordinateSystemType(coordSys, 'cartesian2d');
var width;
var height;
var xAxisExtent;
var yAxisExtent;
if (isCartesian2d) {
var xAxis = coordSys.getAxis('x');
var yAxis = coordSys.getAxis('y');
if (process.env.NODE_ENV !== 'production') {
if (!(xAxis.type === 'category' && yAxis.type === 'category')) {
throw new Error('Heatmap on cartesian must have two category axes');
}
if (!(xAxis.onBand && yAxis.onBand)) {
throw new Error('Heatmap on cartesian must have two axes with boundaryGap true');
}
}
// add 0.5px to avoid the gaps
width = xAxis.getBandWidth() + .5;
height = yAxis.getBandWidth() + .5;
xAxisExtent = xAxis.scale.getExtent();
yAxisExtent = yAxis.scale.getExtent();
}
var group = this.group;
var data = seriesModel.getData();
var emphasisStyle = seriesModel.getModel(['emphasis', 'itemStyle']).getItemStyle();
var blurStyle = seriesModel.getModel(['blur', 'itemStyle']).getItemStyle();
var selectStyle = seriesModel.getModel(['select', 'itemStyle']).getItemStyle();
var borderRadius = seriesModel.get(['itemStyle', 'borderRadius']);
var labelStatesModels = getLabelStatesModels(seriesModel);
var emphasisModel = seriesModel.getModel('emphasis');
var focus = emphasisModel.get('focus');
var blurScope = emphasisModel.get('blurScope');
var emphasisDisabled = emphasisModel.get('disabled');
var dataDims = isCartesian2d ? [data.mapDimension('x'), data.mapDimension('y'), data.mapDimension('value')] : [data.mapDimension('time'), data.mapDimension('value')];
for (var idx = start; idx < end; idx++) {
var rect = void 0;
var style = data.getItemVisual(idx, 'style');
if (isCartesian2d) {
var dataDimX = data.get(dataDims[0], idx);
var dataDimY = data.get(dataDims[1], idx);
// Ignore empty data and out of extent data
if (isNaN(data.get(dataDims[2], idx)) || isNaN(dataDimX) || isNaN(dataDimY) || dataDimX < xAxisExtent[0] || dataDimX > xAxisExtent[1] || dataDimY < yAxisExtent[0] || dataDimY > yAxisExtent[1]) {
continue;
}
var point = coordSys.dataToPoint([dataDimX, dataDimY]);
rect = new graphic.Rect({
shape: {
x: point[0] - width / 2,
y: point[1] - height / 2,
width: width,
height: height
},
style: style
});
} 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: style
});
}
// Optimization for large dataset
if (data.hasItemOption) {
var itemModel = data.getItemModel(idx);
var emphasisModel_1 = itemModel.getModel('emphasis');
emphasisStyle = emphasisModel_1.getModel('itemStyle').getItemStyle();
blurStyle = itemModel.getModel(['blur', 'itemStyle']).getItemStyle();
selectStyle = itemModel.getModel(['select', 'itemStyle']).getItemStyle();
// Each item value struct in the data would be firstly
// {
// itemStyle: { borderRadius: [30, 30] },
// value: [2022, 02, 22]
// }
borderRadius = itemModel.get(['itemStyle', 'borderRadius']);
focus = emphasisModel_1.get('focus');
blurScope = emphasisModel_1.get('blurScope');
emphasisDisabled = emphasisModel_1.get('disabled');
labelStatesModels = getLabelStatesModels(itemModel);
}
rect.shape.r = borderRadius;
var rawValue = seriesModel.getRawValue(idx);
var defaultText = '-';
if (rawValue && rawValue[2] != null) {
defaultText = rawValue[2] + '';
}
setLabelStyle(rect, labelStatesModels, {
labelFetcher: seriesModel,
labelDataIndex: idx,
defaultOpacity: style.opacity,
defaultText: defaultText
});
rect.ensureState('emphasis').style = emphasisStyle;
rect.ensureState('blur').style = blurStyle;
rect.ensureState('select').style = selectStyle;
toggleHoverEmphasis(rect, focus, blurScope, emphasisDisabled);
rect.incremental = incremental;
// PENDING
if (incremental) {
// Rect must use hover layer if it's incremental.
rect.states.emphasis.hoverLayer = true;
}
group.add(rect);
data.setItemGraphicEl(idx, rect);
if (this._progressiveEls) {
this._progressiveEls.push(rect);
}
}
};
HeatmapView.prototype._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);
};
HeatmapView.type = 'heatmap';
return HeatmapView;
}(ChartView);
export default HeatmapView;