@quartic/bokehjs
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Interactive, novel data visualization
77 lines (76 loc) • 3.47 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var extend = function (child, parent) { for (var key in parent) {
if (hasProp.call(parent, key))
child[key] = parent[key];
} function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }, hasProp = {}.hasOwnProperty;
var continuous_ticker_1 = require("./continuous_ticker");
var p = require("core/properties");
var array_1 = require("core/util/array");
exports.CompositeTicker = (function (superClass) {
extend(CompositeTicker, superClass);
function CompositeTicker() {
return CompositeTicker.__super__.constructor.apply(this, arguments);
}
CompositeTicker.prototype.type = 'CompositeTicker';
CompositeTicker.define({
tickers: [p.Array, []]
});
CompositeTicker.getters({
min_intervals: function () {
var i, len, ref, results, ticker;
ref = this.tickers;
results = [];
for (i = 0, len = ref.length; i < len; i++) {
ticker = ref[i];
results.push(ticker.get_min_interval());
}
return results;
},
max_intervals: function () {
var i, len, ref, results, ticker;
ref = this.tickers;
results = [];
for (i = 0, len = ref.length; i < len; i++) {
ticker = ref[i];
results.push(ticker.get_max_interval());
}
return results;
},
min_interval: function () {
return this.min_intervals[0];
},
max_interval: function () {
return this.max_intervals[0];
}
});
CompositeTicker.prototype.get_best_ticker = function (data_low, data_high, desired_n_ticks) {
var best_index, best_ticker, best_ticker_ndx, data_range, errors, ideal_interval, intervals, ticker_ndxs;
data_range = data_high - data_low;
ideal_interval = this.get_ideal_interval(data_low, data_high, desired_n_ticks);
ticker_ndxs = [array_1.sortedIndex(this.min_intervals, ideal_interval) - 1, array_1.sortedIndex(this.max_intervals, ideal_interval)];
intervals = [this.min_intervals[ticker_ndxs[0]], this.max_intervals[ticker_ndxs[1]]];
errors = intervals.map(function (interval) {
return Math.abs(desired_n_ticks - (data_range / interval));
});
best_index = array_1.argmin(errors);
if (best_index === 2e308) {
return this.tickers[0];
}
best_ticker_ndx = ticker_ndxs[best_index];
best_ticker = this.tickers[best_ticker_ndx];
return best_ticker;
};
CompositeTicker.prototype.get_interval = function (data_low, data_high, desired_n_ticks) {
var best_ticker;
best_ticker = this.get_best_ticker(data_low, data_high, desired_n_ticks);
return best_ticker.get_interval(data_low, data_high, desired_n_ticks);
};
CompositeTicker.prototype.get_ticks_no_defaults = function (data_low, data_high, cross_loc, desired_n_ticks) {
var best_ticker, ticks;
best_ticker = this.get_best_ticker(data_low, data_high, desired_n_ticks);
ticks = best_ticker.get_ticks_no_defaults(data_low, data_high, cross_loc, desired_n_ticks);
return ticks;
};
return CompositeTicker;
})(continuous_ticker_1.ContinuousTicker);