123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279 |
- import { each, map } from 'zrender/lib/core/util.js';
- import { linearMap, getPixelPrecision, round } from '../util/number.js';
- import { createAxisTicks, createAxisLabels, calculateCategoryInterval } from './axisTickLabelBuilder.js';
- var NORMALIZED_EXTENT = [0, 1];
- var Axis = function () {
- function Axis(dim, scale, extent) {
- this.onBand = false;
- this.inverse = false;
- this.dim = dim;
- this.scale = scale;
- this._extent = extent || [0, 0];
- }
-
- Axis.prototype.contain = function (coord) {
- var extent = this._extent;
- var min = Math.min(extent[0], extent[1]);
- var max = Math.max(extent[0], extent[1]);
- return coord >= min && coord <= max;
- };
-
- Axis.prototype.containData = function (data) {
- return this.scale.contain(data);
- };
-
- Axis.prototype.getExtent = function () {
- return this._extent.slice();
- };
-
- Axis.prototype.getPixelPrecision = function (dataExtent) {
- return getPixelPrecision(dataExtent || this.scale.getExtent(), this._extent);
- };
-
- Axis.prototype.setExtent = function (start, end) {
- var extent = this._extent;
- extent[0] = start;
- extent[1] = end;
- };
-
- Axis.prototype.dataToCoord = function (data, clamp) {
- var extent = this._extent;
- var scale = this.scale;
- data = scale.normalize(data);
- if (this.onBand && scale.type === 'ordinal') {
- extent = extent.slice();
- fixExtentWithBands(extent, scale.count());
- }
- return linearMap(data, NORMALIZED_EXTENT, extent, clamp);
- };
-
- Axis.prototype.coordToData = function (coord, clamp) {
- var extent = this._extent;
- var scale = this.scale;
- if (this.onBand && scale.type === 'ordinal') {
- extent = extent.slice();
- fixExtentWithBands(extent, scale.count());
- }
- var t = linearMap(coord, extent, NORMALIZED_EXTENT, clamp);
- return this.scale.scale(t);
- };
-
- Axis.prototype.pointToData = function (point, clamp) {
-
- return;
- };
-
- Axis.prototype.getTicksCoords = function (opt) {
- opt = opt || {};
- var tickModel = opt.tickModel || this.getTickModel();
- var result = createAxisTicks(this, tickModel);
- var ticks = result.ticks;
- var ticksCoords = map(ticks, function (tickVal) {
- return {
- coord: this.dataToCoord(this.scale.type === 'ordinal' ? this.scale.getRawOrdinalNumber(tickVal) : tickVal),
- tickValue: tickVal
- };
- }, this);
- var alignWithLabel = tickModel.get('alignWithLabel');
- fixOnBandTicksCoords(this, ticksCoords, alignWithLabel, opt.clamp);
- return ticksCoords;
- };
- Axis.prototype.getMinorTicksCoords = function () {
- if (this.scale.type === 'ordinal') {
-
- return [];
- }
- var minorTickModel = this.model.getModel('minorTick');
- var splitNumber = minorTickModel.get('splitNumber');
-
- if (!(splitNumber > 0 && splitNumber < 100)) {
- splitNumber = 5;
- }
- var minorTicks = this.scale.getMinorTicks(splitNumber);
- var minorTicksCoords = map(minorTicks, function (minorTicksGroup) {
- return map(minorTicksGroup, function (minorTick) {
- return {
- coord: this.dataToCoord(minorTick),
- tickValue: minorTick
- };
- }, this);
- }, this);
- return minorTicksCoords;
- };
- Axis.prototype.getViewLabels = function () {
- return createAxisLabels(this).labels;
- };
- Axis.prototype.getLabelModel = function () {
- return this.model.getModel('axisLabel');
- };
-
- Axis.prototype.getTickModel = function () {
- return this.model.getModel('axisTick');
- };
-
- Axis.prototype.getBandWidth = function () {
- var axisExtent = this._extent;
- var dataExtent = this.scale.getExtent();
- var len = dataExtent[1] - dataExtent[0] + (this.onBand ? 1 : 0);
-
- len === 0 && (len = 1);
- var size = Math.abs(axisExtent[1] - axisExtent[0]);
- return Math.abs(size) / len;
- };
-
- Axis.prototype.calculateCategoryInterval = function () {
- return calculateCategoryInterval(this);
- };
- return Axis;
- }();
- function fixExtentWithBands(extent, nTick) {
- var size = extent[1] - extent[0];
- var len = nTick;
- var margin = size / len / 2;
- extent[0] += margin;
- extent[1] -= margin;
- }
- function fixOnBandTicksCoords(axis, ticksCoords, alignWithLabel, clamp) {
- var ticksLen = ticksCoords.length;
- if (!axis.onBand || alignWithLabel || !ticksLen) {
- return;
- }
- var axisExtent = axis.getExtent();
- var last;
- var diffSize;
- if (ticksLen === 1) {
- ticksCoords[0].coord = axisExtent[0];
- last = ticksCoords[1] = {
- coord: axisExtent[1]
- };
- } else {
- var crossLen = ticksCoords[ticksLen - 1].tickValue - ticksCoords[0].tickValue;
- var shift_1 = (ticksCoords[ticksLen - 1].coord - ticksCoords[0].coord) / crossLen;
- each(ticksCoords, function (ticksItem) {
- ticksItem.coord -= shift_1 / 2;
- });
- var dataExtent = axis.scale.getExtent();
- diffSize = 1 + dataExtent[1] - ticksCoords[ticksLen - 1].tickValue;
- last = {
- coord: ticksCoords[ticksLen - 1].coord + shift_1 * diffSize
- };
- ticksCoords.push(last);
- }
- var inverse = axisExtent[0] > axisExtent[1];
-
- if (littleThan(ticksCoords[0].coord, axisExtent[0])) {
- clamp ? ticksCoords[0].coord = axisExtent[0] : ticksCoords.shift();
- }
- if (clamp && littleThan(axisExtent[0], ticksCoords[0].coord)) {
- ticksCoords.unshift({
- coord: axisExtent[0]
- });
- }
- if (littleThan(axisExtent[1], last.coord)) {
- clamp ? last.coord = axisExtent[1] : ticksCoords.pop();
- }
- if (clamp && littleThan(last.coord, axisExtent[1])) {
- ticksCoords.push({
- coord: axisExtent[1]
- });
- }
- function littleThan(a, b) {
-
-
- a = round(a);
- b = round(b);
- return inverse ? a > b : a < b;
- }
- }
- export default Axis;
|