echarts singleAxisHelper 源码
echarts singleAxisHelper 代码
文件路径：/src/coord/single/singleAxisHelper.ts
/*
* 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 zrUtil from 'zrender/src/core/util';
import SingleAxisModel from './AxisModel';
interface LayoutResult {
position: [number, number],
rotation: number
labelRotation: number
labelDirection: number // 1 | -1
tickDirection: number
nameDirection: number
z2: number
}
export function layout(axisModel: SingleAxisModel, opt?: {
labelInside?: boolean
rotate?: number
}) {
opt = opt || {};
const single = axisModel.coordinateSystem;
const axis = axisModel.axis;
const layout = {} as LayoutResult;
const axisPosition = axis.position;
const orient = axis.orient;
const rect = single.getRect();
const rectBound = [rect.x, rect.x + rect.width, rect.y, rect.y + rect.height];
const positionMap = {
horizontal: {top: rectBound[2], bottom: rectBound[3]},
vertical: {left: rectBound[0], right: rectBound[1]}
} as const;
layout.position = [
orient === 'vertical'
? positionMap.vertical[axisPosition as 'left' | 'right']
: rectBound[0],
orient === 'horizontal'
? positionMap.horizontal[axisPosition as 'top' | 'bottom']
: rectBound[3]
] as [number, number];
const r = {horizontal: 0, vertical: 1};
layout.rotation = Math.PI / 2 * r[orient];
const directionMap = {top: -1, bottom: 1, right: 1, left: -1} as const;
layout.labelDirection = layout.tickDirection =
layout.nameDirection = directionMap[axisPosition];
if (axisModel.get(['axisTick', 'inside'])) {
layout.tickDirection = -layout.tickDirection;
}
if (zrUtil.retrieve(opt.labelInside, axisModel.get(['axisLabel', 'inside']))) {
layout.labelDirection = -layout.labelDirection;
}
let labelRotation = opt.rotate;
labelRotation == null && (labelRotation = axisModel.get(['axisLabel', 'rotate']));
layout.labelRotation = axisPosition === 'top' ? -labelRotation : labelRotation;
layout.z2 = 1;
return layout;
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
6、 golang
-
8、 openharmony