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jefferyzhao
2025-07-31 17:44:12 +08:00
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109
node_modules/echarts/lib/chart/line/LineSeries.js generated vendored Normal file
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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.
*/
var _config = require("../../config");
var __DEV__ = _config.__DEV__;
var createListFromArray = require("../helper/createListFromArray");
var SeriesModel = require("../../model/Series");
/*
* 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 _default = SeriesModel.extend({
type: 'series.line',
dependencies: ['grid', 'polar'],
getInitialData: function (option, ecModel) {
return createListFromArray(this.getSource(), this, {
useEncodeDefaulter: true
});
},
defaultOption: {
zlevel: 0,
z: 2,
coordinateSystem: 'cartesian2d',
legendHoverLink: true,
hoverAnimation: true,
// stack: null
// xAxisIndex: 0,
// yAxisIndex: 0,
// polarIndex: 0,
// If clip the overflow value
clip: true,
// cursor: null,
label: {
position: 'top'
},
// itemStyle: {
// },
lineStyle: {
width: 2,
type: 'solid'
},
// areaStyle: {
// origin of areaStyle. Valid values:
// `'auto'/null/undefined`: from axisLine to data
// `'start'`: from min to data
// `'end'`: from data to max
// origin: 'auto'
// },
// false, 'start', 'end', 'middle'
step: false,
// Disabled if step is true
smooth: false,
smoothMonotone: null,
symbol: 'emptyCircle',
symbolSize: 4,
symbolRotate: null,
showSymbol: true,
// `false`: follow the label interval strategy.
// `true`: show all symbols.
// `'auto'`: If possible, show all symbols, otherwise
// follow the label interval strategy.
showAllSymbol: 'auto',
// Whether to connect break point.
connectNulls: false,
// Sampling for large data. Can be: 'average', 'max', 'min', 'sum'.
sampling: 'none',
animationEasing: 'linear',
// Disable progressive
progressive: 0,
hoverLayerThreshold: Infinity
}
});
module.exports = _default;

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node_modules/echarts/lib/chart/line/LineView.js generated vendored Normal file
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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.
*/
var _config = require("../../config");
var __DEV__ = _config.__DEV__;
var zrUtil = require("zrender/lib/core/util");
var _bbox = require("zrender/lib/core/bbox");
var fromPoints = _bbox.fromPoints;
var SymbolDraw = require("../helper/SymbolDraw");
var SymbolClz = require("../helper/Symbol");
var lineAnimationDiff = require("./lineAnimationDiff");
var graphic = require("../../util/graphic");
var modelUtil = require("../../util/model");
var _poly = require("./poly");
var Polyline = _poly.Polyline;
var Polygon = _poly.Polygon;
var ChartView = require("../../view/Chart");
var _helper = require("./helper");
var prepareDataCoordInfo = _helper.prepareDataCoordInfo;
var getStackedOnPoint = _helper.getStackedOnPoint;
var _createClipPathFromCoordSys = require("../helper/createClipPathFromCoordSys");
var createGridClipPath = _createClipPathFromCoordSys.createGridClipPath;
var createPolarClipPath = _createClipPathFromCoordSys.createPolarClipPath;
/*
* 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.
*/
// FIXME step not support polar
function isPointsSame(points1, points2) {
if (points1.length !== points2.length) {
return;
}
for (var i = 0; i < points1.length; i++) {
var p1 = points1[i];
var p2 = points2[i];
if (p1[0] !== p2[0] || p1[1] !== p2[1]) {
return;
}
}
return true;
}
function getBoundingDiff(points1, points2) {
var min1 = [];
var max1 = [];
var min2 = [];
var max2 = [];
fromPoints(points1, min1, max1);
fromPoints(points2, min2, max2); // Get a max value from each corner of two boundings.
return Math.max(Math.abs(min1[0] - min2[0]), Math.abs(min1[1] - min2[1]), Math.abs(max1[0] - max2[0]), Math.abs(max1[1] - max2[1]));
}
function getSmooth(smooth) {
return typeof smooth === 'number' ? smooth : smooth ? 0.5 : 0;
}
/**
* @param {module:echarts/coord/cartesian/Cartesian2D|module:echarts/coord/polar/Polar} coordSys
* @param {module:echarts/data/List} data
* @param {Object} dataCoordInfo
* @param {Array.<Array.<number>>} points
*/
function getStackedOnPoints(coordSys, data, dataCoordInfo) {
if (!dataCoordInfo.valueDim) {
return [];
}
var points = [];
for (var idx = 0, len = data.count(); idx < len; idx++) {
points.push(getStackedOnPoint(dataCoordInfo, coordSys, data, idx));
}
return points;
}
function turnPointsIntoStep(points, coordSys, stepTurnAt) {
var baseAxis = coordSys.getBaseAxis();
var baseIndex = baseAxis.dim === 'x' || baseAxis.dim === 'radius' ? 0 : 1;
var stepPoints = [];
for (var i = 0; i < points.length - 1; i++) {
var nextPt = points[i + 1];
var pt = points[i];
stepPoints.push(pt);
var stepPt = [];
switch (stepTurnAt) {
case 'end':
stepPt[baseIndex] = nextPt[baseIndex];
stepPt[1 - baseIndex] = pt[1 - baseIndex]; // default is start
stepPoints.push(stepPt);
break;
case 'middle':
// default is start
var middle = (pt[baseIndex] + nextPt[baseIndex]) / 2;
var stepPt2 = [];
stepPt[baseIndex] = stepPt2[baseIndex] = middle;
stepPt[1 - baseIndex] = pt[1 - baseIndex];
stepPt2[1 - baseIndex] = nextPt[1 - baseIndex];
stepPoints.push(stepPt);
stepPoints.push(stepPt2);
break;
default:
stepPt[baseIndex] = pt[baseIndex];
stepPt[1 - baseIndex] = nextPt[1 - baseIndex]; // default is start
stepPoints.push(stepPt);
}
} // Last points
points[i] && stepPoints.push(points[i]);
return stepPoints;
}
function getVisualGradient(data, coordSys) {
var visualMetaList = data.getVisual('visualMeta');
if (!visualMetaList || !visualMetaList.length || !data.count()) {
// When data.count() is 0, gradient range can not be calculated.
return;
}
if (coordSys.type !== 'cartesian2d') {
return;
}
var coordDim;
var visualMeta;
for (var i = visualMetaList.length - 1; i >= 0; i--) {
var dimIndex = visualMetaList[i].dimension;
var dimName = data.dimensions[dimIndex];
var dimInfo = data.getDimensionInfo(dimName);
coordDim = dimInfo && dimInfo.coordDim; // Can only be x or y
if (coordDim === 'x' || coordDim === 'y') {
visualMeta = visualMetaList[i];
break;
}
}
if (!visualMeta) {
return;
} // If the area to be rendered is bigger than area defined by LinearGradient,
// the canvas spec prescribes that the color of the first stop and the last
// stop should be used. But if two stops are added at offset 0, in effect
// browsers use the color of the second stop to render area outside
// LinearGradient. So we can only infinitesimally extend area defined in
// LinearGradient to render `outerColors`.
var axis = coordSys.getAxis(coordDim); // dataToCoor mapping may not be linear, but must be monotonic.
var colorStops = zrUtil.map(visualMeta.stops, function (stop) {
return {
coord: axis.toGlobalCoord(axis.dataToCoord(stop.value)),
color: stop.color
};
});
var stopLen = colorStops.length;
var outerColors = visualMeta.outerColors.slice();
if (stopLen && colorStops[0].coord > colorStops[stopLen - 1].coord) {
colorStops.reverse();
outerColors.reverse();
}
var tinyExtent = 10; // Arbitrary value: 10px
var minCoord = colorStops[0].coord - tinyExtent;
var maxCoord = colorStops[stopLen - 1].coord + tinyExtent;
var coordSpan = maxCoord - minCoord;
if (coordSpan < 1e-3) {
return 'transparent';
}
zrUtil.each(colorStops, function (stop) {
stop.offset = (stop.coord - minCoord) / coordSpan;
});
colorStops.push({
offset: stopLen ? colorStops[stopLen - 1].offset : 0.5,
color: outerColors[1] || 'transparent'
});
colorStops.unshift({
// notice colorStops.length have been changed.
offset: stopLen ? colorStops[0].offset : 0.5,
color: outerColors[0] || 'transparent'
}); // zrUtil.each(colorStops, function (colorStop) {
// // Make sure each offset has rounded px to avoid not sharp edge
// colorStop.offset = (Math.round(colorStop.offset * (end - start) + start) - start) / (end - start);
// });
var gradient = new graphic.LinearGradient(0, 0, 0, 0, colorStops, true);
gradient[coordDim] = minCoord;
gradient[coordDim + '2'] = maxCoord;
return gradient;
}
function getIsIgnoreFunc(seriesModel, data, coordSys) {
var showAllSymbol = seriesModel.get('showAllSymbol');
var isAuto = showAllSymbol === 'auto';
if (showAllSymbol && !isAuto) {
return;
}
var categoryAxis = coordSys.getAxesByScale('ordinal')[0];
if (!categoryAxis) {
return;
} // Note that category label interval strategy might bring some weird effect
// in some scenario: users may wonder why some of the symbols are not
// displayed. So we show all symbols as possible as we can.
if (isAuto // Simplify the logic, do not determine label overlap here.
&& canShowAllSymbolForCategory(categoryAxis, data)) {
return;
} // Otherwise follow the label interval strategy on category axis.
var categoryDataDim = data.mapDimension(categoryAxis.dim);
var labelMap = {};
zrUtil.each(categoryAxis.getViewLabels(), function (labelItem) {
labelMap[labelItem.tickValue] = 1;
});
return function (dataIndex) {
return !labelMap.hasOwnProperty(data.get(categoryDataDim, dataIndex));
};
}
function canShowAllSymbolForCategory(categoryAxis, data) {
// In mose cases, line is monotonous on category axis, and the label size
// is close with each other. So we check the symbol size and some of the
// label size alone with the category axis to estimate whether all symbol
// can be shown without overlap.
var axisExtent = categoryAxis.getExtent();
var availSize = Math.abs(axisExtent[1] - axisExtent[0]) / categoryAxis.scale.count();
isNaN(availSize) && (availSize = 0); // 0/0 is NaN.
// Sampling some points, max 5.
var dataLen = data.count();
var step = Math.max(1, Math.round(dataLen / 5));
for (var dataIndex = 0; dataIndex < dataLen; dataIndex += step) {
if (SymbolClz.getSymbolSize(data, dataIndex // Only for cartesian, where `isHorizontal` exists.
)[categoryAxis.isHorizontal() ? 1 : 0] // Empirical number
* 1.5 > availSize) {
return false;
}
}
return true;
}
function createLineClipPath(coordSys, hasAnimation, seriesModel) {
if (coordSys.type === 'cartesian2d') {
var isHorizontal = coordSys.getBaseAxis().isHorizontal();
var clipPath = createGridClipPath(coordSys, hasAnimation, seriesModel); // Expand clip shape to avoid clipping when line value exceeds axis
if (!seriesModel.get('clip', true)) {
var rectShape = clipPath.shape;
var expandSize = Math.max(rectShape.width, rectShape.height);
if (isHorizontal) {
rectShape.y -= expandSize;
rectShape.height += expandSize * 2;
} else {
rectShape.x -= expandSize;
rectShape.width += expandSize * 2;
}
}
return clipPath;
} else {
return createPolarClipPath(coordSys, hasAnimation, seriesModel);
}
}
var _default = ChartView.extend({
type: 'line',
init: function () {
var lineGroup = new graphic.Group();
var symbolDraw = new SymbolDraw();
this.group.add(symbolDraw.group);
this._symbolDraw = symbolDraw;
this._lineGroup = lineGroup;
},
render: function (seriesModel, ecModel, api) {
var coordSys = seriesModel.coordinateSystem;
var group = this.group;
var data = seriesModel.getData();
var lineStyleModel = seriesModel.getModel('lineStyle');
var areaStyleModel = seriesModel.getModel('areaStyle');
var points = data.mapArray(data.getItemLayout);
var isCoordSysPolar = coordSys.type === 'polar';
var prevCoordSys = this._coordSys;
var symbolDraw = this._symbolDraw;
var polyline = this._polyline;
var polygon = this._polygon;
var lineGroup = this._lineGroup;
var hasAnimation = seriesModel.get('animation');
var isAreaChart = !areaStyleModel.isEmpty();
var valueOrigin = areaStyleModel.get('origin');
var dataCoordInfo = prepareDataCoordInfo(coordSys, data, valueOrigin);
var stackedOnPoints = getStackedOnPoints(coordSys, data, dataCoordInfo);
var showSymbol = seriesModel.get('showSymbol');
var isIgnoreFunc = showSymbol && !isCoordSysPolar && getIsIgnoreFunc(seriesModel, data, coordSys); // Remove temporary symbols
var oldData = this._data;
oldData && oldData.eachItemGraphicEl(function (el, idx) {
if (el.__temp) {
group.remove(el);
oldData.setItemGraphicEl(idx, null);
}
}); // Remove previous created symbols if showSymbol changed to false
if (!showSymbol) {
symbolDraw.remove();
}
group.add(lineGroup); // FIXME step not support polar
var step = !isCoordSysPolar && seriesModel.get('step');
var clipShapeForSymbol;
if (coordSys && coordSys.getArea && seriesModel.get('clip', true)) {
clipShapeForSymbol = coordSys.getArea(); // Avoid float number rounding error for symbol on the edge of axis extent.
// See #7913 and `test/dataZoom-clip.html`.
if (clipShapeForSymbol.width != null) {
clipShapeForSymbol.x -= 0.1;
clipShapeForSymbol.y -= 0.1;
clipShapeForSymbol.width += 0.2;
clipShapeForSymbol.height += 0.2;
} else if (clipShapeForSymbol.r0) {
clipShapeForSymbol.r0 -= 0.5;
clipShapeForSymbol.r1 += 0.5;
}
}
this._clipShapeForSymbol = clipShapeForSymbol; // Initialization animation or coordinate system changed
if (!(polyline && prevCoordSys.type === coordSys.type && step === this._step)) {
showSymbol && symbolDraw.updateData(data, {
isIgnore: isIgnoreFunc,
clipShape: clipShapeForSymbol
});
if (step) {
// TODO If stacked series is not step
points = turnPointsIntoStep(points, coordSys, step);
stackedOnPoints = turnPointsIntoStep(stackedOnPoints, coordSys, step);
}
polyline = this._newPolyline(points, coordSys, hasAnimation);
if (isAreaChart) {
polygon = this._newPolygon(points, stackedOnPoints, coordSys, hasAnimation);
}
lineGroup.setClipPath(createLineClipPath(coordSys, true, seriesModel));
} else {
if (isAreaChart && !polygon) {
// If areaStyle is added
polygon = this._newPolygon(points, stackedOnPoints, coordSys, hasAnimation);
} else if (polygon && !isAreaChart) {
// If areaStyle is removed
lineGroup.remove(polygon);
polygon = this._polygon = null;
} // Update clipPath
lineGroup.setClipPath(createLineClipPath(coordSys, false, seriesModel)); // Always update, or it is wrong in the case turning on legend
// because points are not changed
showSymbol && symbolDraw.updateData(data, {
isIgnore: isIgnoreFunc,
clipShape: clipShapeForSymbol
}); // Stop symbol animation and sync with line points
// FIXME performance?
data.eachItemGraphicEl(function (el) {
el.stopAnimation(true);
}); // In the case data zoom triggerred refreshing frequently
// Data may not change if line has a category axis. So it should animate nothing
if (!isPointsSame(this._stackedOnPoints, stackedOnPoints) || !isPointsSame(this._points, points)) {
if (hasAnimation) {
this._updateAnimation(data, stackedOnPoints, coordSys, api, step, valueOrigin);
} else {
// Not do it in update with animation
if (step) {
// TODO If stacked series is not step
points = turnPointsIntoStep(points, coordSys, step);
stackedOnPoints = turnPointsIntoStep(stackedOnPoints, coordSys, step);
}
polyline.setShape({
points: points
});
polygon && polygon.setShape({
points: points,
stackedOnPoints: stackedOnPoints
});
}
}
}
var visualColor = getVisualGradient(data, coordSys) || data.getVisual('color');
polyline.useStyle(zrUtil.defaults( // Use color in lineStyle first
lineStyleModel.getLineStyle(), {
fill: 'none',
stroke: visualColor,
lineJoin: 'bevel'
}));
var smooth = seriesModel.get('smooth');
smooth = getSmooth(seriesModel.get('smooth'));
polyline.setShape({
smooth: smooth,
smoothMonotone: seriesModel.get('smoothMonotone'),
connectNulls: seriesModel.get('connectNulls')
});
if (polygon) {
var stackedOnSeries = data.getCalculationInfo('stackedOnSeries');
var stackedOnSmooth = 0;
polygon.useStyle(zrUtil.defaults(areaStyleModel.getAreaStyle(), {
fill: visualColor,
opacity: 0.7,
lineJoin: 'bevel'
}));
if (stackedOnSeries) {
stackedOnSmooth = getSmooth(stackedOnSeries.get('smooth'));
}
polygon.setShape({
smooth: smooth,
stackedOnSmooth: stackedOnSmooth,
smoothMonotone: seriesModel.get('smoothMonotone'),
connectNulls: seriesModel.get('connectNulls')
});
}
this._data = data; // Save the coordinate system for transition animation when data changed
this._coordSys = coordSys;
this._stackedOnPoints = stackedOnPoints;
this._points = points;
this._step = step;
this._valueOrigin = valueOrigin;
},
dispose: function () {},
highlight: function (seriesModel, ecModel, api, payload) {
var data = seriesModel.getData();
var dataIndex = modelUtil.queryDataIndex(data, payload);
if (!(dataIndex instanceof Array) && dataIndex != null && dataIndex >= 0) {
var symbol = data.getItemGraphicEl(dataIndex);
if (!symbol) {
// Create a temporary symbol if it is not exists
var pt = data.getItemLayout(dataIndex);
if (!pt) {
// Null data
return;
} // fix #11360: should't draw symbol outside clipShapeForSymbol
if (this._clipShapeForSymbol && !this._clipShapeForSymbol.contain(pt[0], pt[1])) {
return;
}
symbol = new SymbolClz(data, dataIndex);
symbol.position = pt;
symbol.setZ(seriesModel.get('zlevel'), seriesModel.get('z'));
symbol.ignore = isNaN(pt[0]) || isNaN(pt[1]);
symbol.__temp = true;
data.setItemGraphicEl(dataIndex, symbol); // Stop scale animation
symbol.stopSymbolAnimation(true);
this.group.add(symbol);
}
symbol.highlight();
} else {
// Highlight whole series
ChartView.prototype.highlight.call(this, seriesModel, ecModel, api, payload);
}
},
downplay: function (seriesModel, ecModel, api, payload) {
var data = seriesModel.getData();
var dataIndex = modelUtil.queryDataIndex(data, payload);
if (dataIndex != null && dataIndex >= 0) {
var symbol = data.getItemGraphicEl(dataIndex);
if (symbol) {
if (symbol.__temp) {
data.setItemGraphicEl(dataIndex, null);
this.group.remove(symbol);
} else {
symbol.downplay();
}
}
} else {
// FIXME
// can not downplay completely.
// Downplay whole series
ChartView.prototype.downplay.call(this, seriesModel, ecModel, api, payload);
}
},
/**
* @param {module:zrender/container/Group} group
* @param {Array.<Array.<number>>} points
* @private
*/
_newPolyline: function (points) {
var polyline = this._polyline; // Remove previous created polyline
if (polyline) {
this._lineGroup.remove(polyline);
}
polyline = new Polyline({
shape: {
points: points
},
silent: true,
z2: 10
});
this._lineGroup.add(polyline);
this._polyline = polyline;
return polyline;
},
/**
* @param {module:zrender/container/Group} group
* @param {Array.<Array.<number>>} stackedOnPoints
* @param {Array.<Array.<number>>} points
* @private
*/
_newPolygon: function (points, stackedOnPoints) {
var polygon = this._polygon; // Remove previous created polygon
if (polygon) {
this._lineGroup.remove(polygon);
}
polygon = new Polygon({
shape: {
points: points,
stackedOnPoints: stackedOnPoints
},
silent: true
});
this._lineGroup.add(polygon);
this._polygon = polygon;
return polygon;
},
/**
* @private
*/
// FIXME Two value axis
_updateAnimation: function (data, stackedOnPoints, coordSys, api, step, valueOrigin) {
var polyline = this._polyline;
var polygon = this._polygon;
var seriesModel = data.hostModel;
var diff = lineAnimationDiff(this._data, data, this._stackedOnPoints, stackedOnPoints, this._coordSys, coordSys, this._valueOrigin, valueOrigin);
var current = diff.current;
var stackedOnCurrent = diff.stackedOnCurrent;
var next = diff.next;
var stackedOnNext = diff.stackedOnNext;
if (step) {
// TODO If stacked series is not step
current = turnPointsIntoStep(diff.current, coordSys, step);
stackedOnCurrent = turnPointsIntoStep(diff.stackedOnCurrent, coordSys, step);
next = turnPointsIntoStep(diff.next, coordSys, step);
stackedOnNext = turnPointsIntoStep(diff.stackedOnNext, coordSys, step);
} // Don't apply animation if diff is large.
// For better result and avoid memory explosion problems like
// https://github.com/apache/incubator-echarts/issues/12229
if (getBoundingDiff(current, next) > 3000 || polygon && getBoundingDiff(stackedOnCurrent, stackedOnNext) > 3000) {
polyline.setShape({
points: next
});
if (polygon) {
polygon.setShape({
points: next,
stackedOnPoints: stackedOnNext
});
}
return;
} // `diff.current` is subset of `current` (which should be ensured by
// turnPointsIntoStep), so points in `__points` can be updated when
// points in `current` are update during animation.
polyline.shape.__points = diff.current;
polyline.shape.points = current;
graphic.updateProps(polyline, {
shape: {
points: next
}
}, seriesModel);
if (polygon) {
polygon.setShape({
points: current,
stackedOnPoints: stackedOnCurrent
});
graphic.updateProps(polygon, {
shape: {
points: next,
stackedOnPoints: stackedOnNext
}
}, seriesModel);
}
var updatedDataInfo = [];
var diffStatus = diff.status;
for (var i = 0; i < diffStatus.length; i++) {
var cmd = diffStatus[i].cmd;
if (cmd === '=') {
var el = data.getItemGraphicEl(diffStatus[i].idx1);
if (el) {
updatedDataInfo.push({
el: el,
ptIdx: i // Index of points
});
}
}
}
if (polyline.animators && polyline.animators.length) {
polyline.animators[0].during(function () {
for (var i = 0; i < updatedDataInfo.length; i++) {
var el = updatedDataInfo[i].el;
el.attr('position', polyline.shape.__points[updatedDataInfo[i].ptIdx]);
}
});
}
},
remove: function (ecModel) {
var group = this.group;
var oldData = this._data;
this._lineGroup.removeAll();
this._symbolDraw.remove(true); // Remove temporary created elements when highlighting
oldData && oldData.eachItemGraphicEl(function (el, idx) {
if (el.__temp) {
group.remove(el);
oldData.setItemGraphicEl(idx, null);
}
});
this._polyline = this._polygon = this._coordSys = this._points = this._stackedOnPoints = this._data = null;
}
});
module.exports = _default;

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node_modules/echarts/lib/chart/line/helper.js generated vendored Normal file
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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.
*/
var _dataStackHelper = require("../../data/helper/dataStackHelper");
var isDimensionStacked = _dataStackHelper.isDimensionStacked;
var _util = require("zrender/lib/core/util");
var map = _util.map;
/*
* 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.
*/
/**
* @param {Object} coordSys
* @param {module:echarts/data/List} data
* @param {string} valueOrigin lineSeries.option.areaStyle.origin
*/
function prepareDataCoordInfo(coordSys, data, valueOrigin) {
var baseAxis = coordSys.getBaseAxis();
var valueAxis = coordSys.getOtherAxis(baseAxis);
var valueStart = getValueStart(valueAxis, valueOrigin);
var baseAxisDim = baseAxis.dim;
var valueAxisDim = valueAxis.dim;
var valueDim = data.mapDimension(valueAxisDim);
var baseDim = data.mapDimension(baseAxisDim);
var baseDataOffset = valueAxisDim === 'x' || valueAxisDim === 'radius' ? 1 : 0;
var dims = map(coordSys.dimensions, function (coordDim) {
return data.mapDimension(coordDim);
});
var stacked;
var stackResultDim = data.getCalculationInfo('stackResultDimension');
if (stacked |= isDimensionStacked(data, dims[0]
/*, dims[1]*/
)) {
// jshint ignore:line
dims[0] = stackResultDim;
}
if (stacked |= isDimensionStacked(data, dims[1]
/*, dims[0]*/
)) {
// jshint ignore:line
dims[1] = stackResultDim;
}
return {
dataDimsForPoint: dims,
valueStart: valueStart,
valueAxisDim: valueAxisDim,
baseAxisDim: baseAxisDim,
stacked: !!stacked,
valueDim: valueDim,
baseDim: baseDim,
baseDataOffset: baseDataOffset,
stackedOverDimension: data.getCalculationInfo('stackedOverDimension')
};
}
function getValueStart(valueAxis, valueOrigin) {
var valueStart = 0;
var extent = valueAxis.scale.getExtent();
if (valueOrigin === 'start') {
valueStart = extent[0];
} else if (valueOrigin === 'end') {
valueStart = extent[1];
} // auto
else {
// Both positive
if (extent[0] > 0) {
valueStart = extent[0];
} // Both negative
else if (extent[1] < 0) {
valueStart = extent[1];
} // If is one positive, and one negative, onZero shall be true
}
return valueStart;
}
function getStackedOnPoint(dataCoordInfo, coordSys, data, idx) {
var value = NaN;
if (dataCoordInfo.stacked) {
value = data.get(data.getCalculationInfo('stackedOverDimension'), idx);
}
if (isNaN(value)) {
value = dataCoordInfo.valueStart;
}
var baseDataOffset = dataCoordInfo.baseDataOffset;
var stackedData = [];
stackedData[baseDataOffset] = data.get(dataCoordInfo.baseDim, idx);
stackedData[1 - baseDataOffset] = value;
return coordSys.dataToPoint(stackedData);
}
exports.prepareDataCoordInfo = prepareDataCoordInfo;
exports.getStackedOnPoint = getStackedOnPoint;

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node_modules/echarts/lib/chart/line/lineAnimationDiff.js generated vendored Normal file
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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.
*/
var _helper = require("./helper");
var prepareDataCoordInfo = _helper.prepareDataCoordInfo;
var getStackedOnPoint = _helper.getStackedOnPoint;
/*
* 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 arrayDiff = require('zrender/src/core/arrayDiff');
// 'zrender/src/core/arrayDiff' has been used before, but it did
// not do well in performance when roam with fixed dataZoom window.
// function convertToIntId(newIdList, oldIdList) {
// // Generate int id instead of string id.
// // Compare string maybe slow in score function of arrDiff
// // Assume id in idList are all unique
// var idIndicesMap = {};
// var idx = 0;
// for (var i = 0; i < newIdList.length; i++) {
// idIndicesMap[newIdList[i]] = idx;
// newIdList[i] = idx++;
// }
// for (var i = 0; i < oldIdList.length; i++) {
// var oldId = oldIdList[i];
// // Same with newIdList
// if (idIndicesMap[oldId]) {
// oldIdList[i] = idIndicesMap[oldId];
// }
// else {
// oldIdList[i] = idx++;
// }
// }
// }
function diffData(oldData, newData) {
var diffResult = [];
newData.diff(oldData).add(function (idx) {
diffResult.push({
cmd: '+',
idx: idx
});
}).update(function (newIdx, oldIdx) {
diffResult.push({
cmd: '=',
idx: oldIdx,
idx1: newIdx
});
}).remove(function (idx) {
diffResult.push({
cmd: '-',
idx: idx
});
}).execute();
return diffResult;
}
function _default(oldData, newData, oldStackedOnPoints, newStackedOnPoints, oldCoordSys, newCoordSys, oldValueOrigin, newValueOrigin) {
var diff = diffData(oldData, newData); // var newIdList = newData.mapArray(newData.getId);
// var oldIdList = oldData.mapArray(oldData.getId);
// convertToIntId(newIdList, oldIdList);
// // FIXME One data ?
// diff = arrayDiff(oldIdList, newIdList);
var currPoints = [];
var nextPoints = []; // Points for stacking base line
var currStackedPoints = [];
var nextStackedPoints = [];
var status = [];
var sortedIndices = [];
var rawIndices = [];
var newDataOldCoordInfo = prepareDataCoordInfo(oldCoordSys, newData, oldValueOrigin);
var oldDataNewCoordInfo = prepareDataCoordInfo(newCoordSys, oldData, newValueOrigin);
for (var i = 0; i < diff.length; i++) {
var diffItem = diff[i];
var pointAdded = true; // FIXME, animation is not so perfect when dataZoom window moves fast
// Which is in case remvoing or add more than one data in the tail or head
switch (diffItem.cmd) {
case '=':
var currentPt = oldData.getItemLayout(diffItem.idx);
var nextPt = newData.getItemLayout(diffItem.idx1); // If previous data is NaN, use next point directly
if (isNaN(currentPt[0]) || isNaN(currentPt[1])) {
currentPt = nextPt.slice();
}
currPoints.push(currentPt);
nextPoints.push(nextPt);
currStackedPoints.push(oldStackedOnPoints[diffItem.idx]);
nextStackedPoints.push(newStackedOnPoints[diffItem.idx1]);
rawIndices.push(newData.getRawIndex(diffItem.idx1));
break;
case '+':
var idx = diffItem.idx;
currPoints.push(oldCoordSys.dataToPoint([newData.get(newDataOldCoordInfo.dataDimsForPoint[0], idx), newData.get(newDataOldCoordInfo.dataDimsForPoint[1], idx)]));
nextPoints.push(newData.getItemLayout(idx).slice());
currStackedPoints.push(getStackedOnPoint(newDataOldCoordInfo, oldCoordSys, newData, idx));
nextStackedPoints.push(newStackedOnPoints[idx]);
rawIndices.push(newData.getRawIndex(idx));
break;
case '-':
var idx = diffItem.idx;
var rawIndex = oldData.getRawIndex(idx); // Data is replaced. In the case of dynamic data queue
// FIXME FIXME FIXME
if (rawIndex !== idx) {
currPoints.push(oldData.getItemLayout(idx));
nextPoints.push(newCoordSys.dataToPoint([oldData.get(oldDataNewCoordInfo.dataDimsForPoint[0], idx), oldData.get(oldDataNewCoordInfo.dataDimsForPoint[1], idx)]));
currStackedPoints.push(oldStackedOnPoints[idx]);
nextStackedPoints.push(getStackedOnPoint(oldDataNewCoordInfo, newCoordSys, oldData, idx));
rawIndices.push(rawIndex);
} else {
pointAdded = false;
}
} // Original indices
if (pointAdded) {
status.push(diffItem);
sortedIndices.push(sortedIndices.length);
}
} // Diff result may be crossed if all items are changed
// Sort by data index
sortedIndices.sort(function (a, b) {
return rawIndices[a] - rawIndices[b];
});
var sortedCurrPoints = [];
var sortedNextPoints = [];
var sortedCurrStackedPoints = [];
var sortedNextStackedPoints = [];
var sortedStatus = [];
for (var i = 0; i < sortedIndices.length; i++) {
var idx = sortedIndices[i];
sortedCurrPoints[i] = currPoints[idx];
sortedNextPoints[i] = nextPoints[idx];
sortedCurrStackedPoints[i] = currStackedPoints[idx];
sortedNextStackedPoints[i] = nextStackedPoints[idx];
sortedStatus[i] = status[idx];
}
return {
current: sortedCurrPoints,
next: sortedNextPoints,
stackedOnCurrent: sortedCurrStackedPoints,
stackedOnNext: sortedNextStackedPoints,
status: sortedStatus
};
}
module.exports = _default;

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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.
*/
var Path = require("zrender/lib/graphic/Path");
var vec2 = require("zrender/lib/core/vector");
var fixClipWithShadow = require("zrender/lib/graphic/helper/fixClipWithShadow");
/*
* 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.
*/
// Poly path support NaN point
var vec2Min = vec2.min;
var vec2Max = vec2.max;
var scaleAndAdd = vec2.scaleAndAdd;
var v2Copy = vec2.copy; // Temporary variable
var v = [];
var cp0 = [];
var cp1 = [];
function isPointNull(p) {
return isNaN(p[0]) || isNaN(p[1]);
}
function drawSegment(ctx, points, start, segLen, allLen, dir, smoothMin, smoothMax, smooth, smoothMonotone, connectNulls) {
// if (smoothMonotone == null) {
// if (isMono(points, 'x')) {
// return drawMono(ctx, points, start, segLen, allLen,
// dir, smoothMin, smoothMax, smooth, 'x', connectNulls);
// }
// else if (isMono(points, 'y')) {
// return drawMono(ctx, points, start, segLen, allLen,
// dir, smoothMin, smoothMax, smooth, 'y', connectNulls);
// }
// else {
// return drawNonMono.apply(this, arguments);
// }
// }
// else if (smoothMonotone !== 'none' && isMono(points, smoothMonotone)) {
// return drawMono.apply(this, arguments);
// }
// else {
// return drawNonMono.apply(this, arguments);
// }
if (smoothMonotone === 'none' || !smoothMonotone) {
return drawNonMono.apply(this, arguments);
} else {
return drawMono.apply(this, arguments);
}
}
/**
* Check if points is in monotone.
*
* @param {number[][]} points Array of points which is in [x, y] form
* @param {string} smoothMonotone 'x', 'y', or 'none', stating for which
* dimension that is checking.
* If is 'none', `drawNonMono` should be
* called.
* If is undefined, either being monotone
* in 'x' or 'y' will call `drawMono`.
*/
// function isMono(points, smoothMonotone) {
// if (points.length <= 1) {
// return true;
// }
// var dim = smoothMonotone === 'x' ? 0 : 1;
// var last = points[0][dim];
// var lastDiff = 0;
// for (var i = 1; i < points.length; ++i) {
// var diff = points[i][dim] - last;
// if (!isNaN(diff) && !isNaN(lastDiff)
// && diff !== 0 && lastDiff !== 0
// && ((diff >= 0) !== (lastDiff >= 0))
// ) {
// return false;
// }
// if (!isNaN(diff) && diff !== 0) {
// lastDiff = diff;
// last = points[i][dim];
// }
// }
// return true;
// }
/**
* Draw smoothed line in monotone, in which only vertical or horizontal bezier
* control points will be used. This should be used when points are monotone
* either in x or y dimension.
*/
function drawMono(ctx, points, start, segLen, allLen, dir, smoothMin, smoothMax, smooth, smoothMonotone, connectNulls) {
var prevIdx = 0;
var idx = start;
for (var k = 0; k < segLen; k++) {
var p = points[idx];
if (idx >= allLen || idx < 0) {
break;
}
if (isPointNull(p)) {
if (connectNulls) {
idx += dir;
continue;
}
break;
}
if (idx === start) {
ctx[dir > 0 ? 'moveTo' : 'lineTo'](p[0], p[1]);
} else {
if (smooth > 0) {
var prevP = points[prevIdx];
var dim = smoothMonotone === 'y' ? 1 : 0; // Length of control point to p, either in x or y, but not both
var ctrlLen = (p[dim] - prevP[dim]) * smooth;
v2Copy(cp0, prevP);
cp0[dim] = prevP[dim] + ctrlLen;
v2Copy(cp1, p);
cp1[dim] = p[dim] - ctrlLen;
ctx.bezierCurveTo(cp0[0], cp0[1], cp1[0], cp1[1], p[0], p[1]);
} else {
ctx.lineTo(p[0], p[1]);
}
}
prevIdx = idx;
idx += dir;
}
return k;
}
/**
* Draw smoothed line in non-monotone, in may cause undesired curve in extreme
* situations. This should be used when points are non-monotone neither in x or
* y dimension.
*/
function drawNonMono(ctx, points, start, segLen, allLen, dir, smoothMin, smoothMax, smooth, smoothMonotone, connectNulls) {
var prevIdx = 0;
var idx = start;
for (var k = 0; k < segLen; k++) {
var p = points[idx];
if (idx >= allLen || idx < 0) {
break;
}
if (isPointNull(p)) {
if (connectNulls) {
idx += dir;
continue;
}
break;
}
if (idx === start) {
ctx[dir > 0 ? 'moveTo' : 'lineTo'](p[0], p[1]);
v2Copy(cp0, p);
} else {
if (smooth > 0) {
var nextIdx = idx + dir;
var nextP = points[nextIdx];
if (connectNulls) {
// Find next point not null
while (nextP && isPointNull(points[nextIdx])) {
nextIdx += dir;
nextP = points[nextIdx];
}
}
var ratioNextSeg = 0.5;
var prevP = points[prevIdx];
var nextP = points[nextIdx]; // Last point
if (!nextP || isPointNull(nextP)) {
v2Copy(cp1, p);
} else {
// If next data is null in not connect case
if (isPointNull(nextP) && !connectNulls) {
nextP = p;
}
vec2.sub(v, nextP, prevP);
var lenPrevSeg;
var lenNextSeg;
if (smoothMonotone === 'x' || smoothMonotone === 'y') {
var dim = smoothMonotone === 'x' ? 0 : 1;
lenPrevSeg = Math.abs(p[dim] - prevP[dim]);
lenNextSeg = Math.abs(p[dim] - nextP[dim]);
} else {
lenPrevSeg = vec2.dist(p, prevP);
lenNextSeg = vec2.dist(p, nextP);
} // Use ratio of seg length
ratioNextSeg = lenNextSeg / (lenNextSeg + lenPrevSeg);
scaleAndAdd(cp1, p, v, -smooth * (1 - ratioNextSeg));
} // Smooth constraint
vec2Min(cp0, cp0, smoothMax);
vec2Max(cp0, cp0, smoothMin);
vec2Min(cp1, cp1, smoothMax);
vec2Max(cp1, cp1, smoothMin);
ctx.bezierCurveTo(cp0[0], cp0[1], cp1[0], cp1[1], p[0], p[1]); // cp0 of next segment
scaleAndAdd(cp0, p, v, smooth * ratioNextSeg);
} else {
ctx.lineTo(p[0], p[1]);
}
}
prevIdx = idx;
idx += dir;
}
return k;
}
function getBoundingBox(points, smoothConstraint) {
var ptMin = [Infinity, Infinity];
var ptMax = [-Infinity, -Infinity];
if (smoothConstraint) {
for (var i = 0; i < points.length; i++) {
var pt = points[i];
if (pt[0] < ptMin[0]) {
ptMin[0] = pt[0];
}
if (pt[1] < ptMin[1]) {
ptMin[1] = pt[1];
}
if (pt[0] > ptMax[0]) {
ptMax[0] = pt[0];
}
if (pt[1] > ptMax[1]) {
ptMax[1] = pt[1];
}
}
}
return {
min: smoothConstraint ? ptMin : ptMax,
max: smoothConstraint ? ptMax : ptMin
};
}
var Polyline = Path.extend({
type: 'ec-polyline',
shape: {
points: [],
smooth: 0,
smoothConstraint: true,
smoothMonotone: null,
connectNulls: false
},
style: {
fill: null,
stroke: '#000'
},
brush: fixClipWithShadow(Path.prototype.brush),
buildPath: function (ctx, shape) {
var points = shape.points;
var i = 0;
var len = points.length;
var result = getBoundingBox(points, shape.smoothConstraint);
if (shape.connectNulls) {
// Must remove first and last null values avoid draw error in polygon
for (; len > 0; len--) {
if (!isPointNull(points[len - 1])) {
break;
}
}
for (; i < len; i++) {
if (!isPointNull(points[i])) {
break;
}
}
}
while (i < len) {
i += drawSegment(ctx, points, i, len, len, 1, result.min, result.max, shape.smooth, shape.smoothMonotone, shape.connectNulls) + 1;
}
}
});
var Polygon = Path.extend({
type: 'ec-polygon',
shape: {
points: [],
// Offset between stacked base points and points
stackedOnPoints: [],
smooth: 0,
stackedOnSmooth: 0,
smoothConstraint: true,
smoothMonotone: null,
connectNulls: false
},
brush: fixClipWithShadow(Path.prototype.brush),
buildPath: function (ctx, shape) {
var points = shape.points;
var stackedOnPoints = shape.stackedOnPoints;
var i = 0;
var len = points.length;
var smoothMonotone = shape.smoothMonotone;
var bbox = getBoundingBox(points, shape.smoothConstraint);
var stackedOnBBox = getBoundingBox(stackedOnPoints, shape.smoothConstraint);
if (shape.connectNulls) {
// Must remove first and last null values avoid draw error in polygon
for (; len > 0; len--) {
if (!isPointNull(points[len - 1])) {
break;
}
}
for (; i < len; i++) {
if (!isPointNull(points[i])) {
break;
}
}
}
while (i < len) {
var k = drawSegment(ctx, points, i, len, len, 1, bbox.min, bbox.max, shape.smooth, smoothMonotone, shape.connectNulls);
drawSegment(ctx, stackedOnPoints, i + k - 1, k, len, -1, stackedOnBBox.min, stackedOnBBox.max, shape.stackedOnSmooth, smoothMonotone, shape.connectNulls);
i += k + 1;
ctx.closePath();
}
}
});
exports.Polyline = Polyline;
exports.Polygon = Polygon;