echarts SingleAxis 源码
echarts SingleAxis 代码
文件路径：/src/coord/single/SingleAxis.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 Axis from '../Axis';
import Scale from '../../scale/Scale';
import { OptionAxisType } from '../axisCommonTypes';
import SingleAxisModel, { SingleAxisPosition } from './AxisModel';
import { LayoutOrient } from '../../util/types';
import Single from './Single';
interface SingleAxis {
/**
* Transform global coord to local coord,
* i.e. let localCoord = axis.toLocalCoord(80);
*/
toLocalCoord(coord: number): number;
/**
* Transform global coord to local coord,
* i.e. let globalCoord = axis.toLocalCoord(40);
*/
toGlobalCoord(coord: number): number;
}
class SingleAxis extends Axis {
position: SingleAxisPosition;
orient: LayoutOrient;
coordinateSystem: Single;
model: SingleAxisModel;
constructor(
dim: string,
scale: Scale,
coordExtent: [number, number],
axisType?: OptionAxisType,
position?: SingleAxisPosition
) {
super(dim, scale, coordExtent);
this.type = axisType || 'value';
this.position = position || 'bottom';
}
/**
* Judge the orient of the axis.
*/
isHorizontal() {
const position = this.position;
return position === 'top' || position === 'bottom';
}
pointToData(point: number[], clamp?: boolean) { // TODO: clamp is not used.
return this.coordinateSystem.pointToData(point)[0];
}
}
export default SingleAxis;
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