scichart
Version:
Fast WebGL JavaScript Charting Library and Framework
74 lines (73 loc) • 4.24 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.IndexTickProvider = void 0;
var NumberRange_1 = require("../../../Core/NumberRange");
var NumericTickProvider_1 = require("./NumericTickProvider");
var TickProvider_1 = require("./TickProvider");
/**
* @summary The IndexTickProvider is a {@link TickProvider} implementation for Index Axis.
* @description TickProviders are responsible for calculating the interval between major and minor gridlines, ticks and labels.
*
* * The method {@link getMajorTicks} returns an array of major ticks (data-values values where SciChart will place labels and major gridlines.
* * The method {@link getMinorTicks} returns an array of minor ticks (data-values values where SciChart will place minor gridlines.
* * The method {@link isParamsValid} performs some sanity checks.
* * The method {@link calculateTicks} performs the actual calculation
*
* Override these methods to create custom implementations of Tick intervals in SciChart
* @remarks
* See also {@link TickProvider} for the base implementation.
*/
var IndexTickProvider = /** @class */ (function (_super) {
__extends(IndexTickProvider, _super);
/**
* Creates an instance of an IndexTickProvider
* @param webAssemblyContext The {@link TSciChart | SciChart 2D WebAssembly Context} or {@link TSciChart | SciChart 3D WebAssembly Context}
* containing native methods and access to our WebGL2 WebAssembly Rendering Engine
*/
function IndexTickProvider(webAssemblyContext) {
var _this = _super.call(this) || this;
_this.webAssemblyContext = webAssemblyContext;
_this.numericTickProvider = new NumericTickProvider_1.NumericTickProvider(webAssemblyContext);
return _this;
}
/** @inheritDoc */
IndexTickProvider.prototype.getMinorTicks = function (minorDelta, majorDelta, visibleRange, coordCalc) {
var dataGap = this.parentAxis.dataGap;
if (dataGap === 0)
return this.numericTickProvider.getMinorTicks(minorDelta, majorDelta, visibleRange);
var indexCoordCalc = coordCalc;
var minorTicks = this.numericTickProvider.getMinorTicks(minorDelta / dataGap, majorDelta / dataGap, this.getIndexRange(indexCoordCalc, visibleRange));
return minorTicks.map(function (t) { return indexCoordCalc.transformIndexToData(t); });
};
/** @inheritDoc */
IndexTickProvider.prototype.getMajorTicks = function (minorDelta, majorDelta, visibleRange, coordCalc) {
var dataGap = this.parentAxis.dataGap;
if (dataGap === 0)
return this.numericTickProvider.getMajorTicks(minorDelta, majorDelta, visibleRange);
var indexCoordCalc = coordCalc;
var majorTicks = this.numericTickProvider.getMajorTicks(minorDelta / dataGap, majorDelta / dataGap, this.getIndexRange(indexCoordCalc, visibleRange));
return majorTicks.map(function (t) { return indexCoordCalc.transformIndexToData(t); });
};
IndexTickProvider.prototype.getIndexRange = function (coordCalc, visibleRange) {
var minIndex = coordCalc.transformDataToIndex(visibleRange.min);
var maxIndex = coordCalc.transformDataToIndex(visibleRange.max);
return new NumberRange_1.NumberRange(minIndex, maxIndex);
};
return IndexTickProvider;
}(TickProvider_1.TickProvider));
exports.IndexTickProvider = IndexTickProvider;