cione-comp-lib
Version:
`$ yarn add cione-comp-lib` 或者 `$ npm i cione-comp-lib -S`
188 lines (187 loc) • 5.93 kB
JavaScript
import { __extends } from "../../../tslib/tslib.es6.mjs";
import { getPrecision, round } from "../util/number.mjs";
import { addCommas } from "../util/format.mjs";
import Scale from "./Scale.mjs";
import { contain, normalize, scale, getIntervalPrecision, intervalScaleNiceTicks } from "./helper.mjs";
var roundNumber = round;
var IntervalScale = function(_super) {
__extends(IntervalScale2, _super);
function IntervalScale2() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.type = "interval";
_this._interval = 0;
_this._intervalPrecision = 2;
return _this;
}
IntervalScale2.prototype.parse = function(val) {
return val;
};
IntervalScale2.prototype.contain = function(val) {
return contain(val, this._extent);
};
IntervalScale2.prototype.normalize = function(val) {
return normalize(val, this._extent);
};
IntervalScale2.prototype.scale = function(val) {
return scale(val, this._extent);
};
IntervalScale2.prototype.setExtent = function(start, end) {
var thisExtent = this._extent;
if (!isNaN(start)) {
thisExtent[0] = parseFloat(start);
}
if (!isNaN(end)) {
thisExtent[1] = parseFloat(end);
}
};
IntervalScale2.prototype.unionExtent = function(other) {
var extent = this._extent;
other[0] < extent[0] && (extent[0] = other[0]);
other[1] > extent[1] && (extent[1] = other[1]);
this.setExtent(extent[0], extent[1]);
};
IntervalScale2.prototype.getInterval = function() {
return this._interval;
};
IntervalScale2.prototype.setInterval = function(interval) {
this._interval = interval;
this._niceExtent = this._extent.slice();
this._intervalPrecision = getIntervalPrecision(interval);
};
IntervalScale2.prototype.getTicks = function(expandToNicedExtent) {
var interval = this._interval;
var extent = this._extent;
var niceTickExtent = this._niceExtent;
var intervalPrecision = this._intervalPrecision;
var ticks = [];
if (!interval) {
return ticks;
}
var safeLimit = 1e4;
if (extent[0] < niceTickExtent[0]) {
if (expandToNicedExtent) {
ticks.push({
value: roundNumber(niceTickExtent[0] - interval, intervalPrecision)
});
} else {
ticks.push({
value: extent[0]
});
}
}
var tick = niceTickExtent[0];
while (tick <= niceTickExtent[1]) {
ticks.push({
value: tick
});
tick = roundNumber(tick + interval, intervalPrecision);
if (tick === ticks[ticks.length - 1].value) {
break;
}
if (ticks.length > safeLimit) {
return [];
}
}
var lastNiceTick = ticks.length ? ticks[ticks.length - 1].value : niceTickExtent[1];
if (extent[1] > lastNiceTick) {
if (expandToNicedExtent) {
ticks.push({
value: roundNumber(lastNiceTick + interval, intervalPrecision)
});
} else {
ticks.push({
value: extent[1]
});
}
}
return ticks;
};
IntervalScale2.prototype.getMinorTicks = function(splitNumber) {
var ticks = this.getTicks(true);
var minorTicks = [];
var extent = this.getExtent();
for (var i = 1; i < ticks.length; i++) {
var nextTick = ticks[i];
var prevTick = ticks[i - 1];
var count = 0;
var minorTicksGroup = [];
var interval = nextTick.value - prevTick.value;
var minorInterval = interval / splitNumber;
while (count < splitNumber - 1) {
var minorTick = roundNumber(prevTick.value + (count + 1) * minorInterval);
if (minorTick > extent[0] && minorTick < extent[1]) {
minorTicksGroup.push(minorTick);
}
count++;
}
minorTicks.push(minorTicksGroup);
}
return minorTicks;
};
IntervalScale2.prototype.getLabel = function(data, opt) {
if (data == null) {
return "";
}
var precision = opt && opt.precision;
if (precision == null) {
precision = getPrecision(data.value) || 0;
} else if (precision === "auto") {
precision = this._intervalPrecision;
}
var dataNum = roundNumber(data.value, precision, true);
return addCommas(dataNum);
};
IntervalScale2.prototype.calcNiceTicks = function(splitNumber, minInterval, maxInterval) {
splitNumber = splitNumber || 5;
var extent = this._extent;
var span = extent[1] - extent[0];
if (!isFinite(span)) {
return;
}
if (span < 0) {
span = -span;
extent.reverse();
}
var result = intervalScaleNiceTicks(extent, splitNumber, minInterval, maxInterval);
this._intervalPrecision = result.intervalPrecision;
this._interval = result.interval;
this._niceExtent = result.niceTickExtent;
};
IntervalScale2.prototype.calcNiceExtent = function(opt) {
var extent = this._extent;
if (extent[0] === extent[1]) {
if (extent[0] !== 0) {
var expandSize = Math.abs(extent[0]);
if (!opt.fixMax) {
extent[1] += expandSize / 2;
extent[0] -= expandSize / 2;
} else {
extent[0] -= expandSize / 2;
}
} else {
extent[1] = 1;
}
}
var span = extent[1] - extent[0];
if (!isFinite(span)) {
extent[0] = 0;
extent[1] = 1;
}
this.calcNiceTicks(opt.splitNumber, opt.minInterval, opt.maxInterval);
var interval = this._interval;
if (!opt.fixMin) {
extent[0] = roundNumber(Math.floor(extent[0] / interval) * interval);
}
if (!opt.fixMax) {
extent[1] = roundNumber(Math.ceil(extent[1] / interval) * interval);
}
};
IntervalScale2.prototype.setNiceExtent = function(min, max) {
this._niceExtent = [min, max];
};
IntervalScale2.type = "interval";
return IntervalScale2;
}(Scale);
Scale.registerClass(IntervalScale);
var IntervalScale$1 = IntervalScale;
export { IntervalScale$1 as default };