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export function Slope() {
const _ = L.Control.Elevation.Utils;
let opts = this.options;
let slope = {};
slope.label = opts.slopeLabel || '%';
return {
name: 'slope',
meta: 'slope',
unit: slope.label,
deltaMax: this.options.slopedDeltaMax,
clampRange: this.options.slopeRange,
decimals: 2,
pointToAttr: (_, i) => { // slope in % = ( dy / dx ) * 100;
let dx = (this._data[i].dist - this._data[i > 0 ? i - 1 : i].dist) * 1000;
let dy = this._data[i][this.options.yAttr] - this._data[i > 0 ? i - 1 : i][this.options.yAttr];
return dx !== 0 ? (dy / dx) * 100 : NaN;
},
onPointAdded: (_, i) => {
let dz = this._data[i][this.options.yAttr] - this._data[i > 0 ? i - 1 : i][this.options.yAttr];
if (dz > 0) this.track_info.ascent = (this.track_info.ascent || 0) + dz; // Total Ascent
else if (dz < 0) this.track_info.descent = (this.track_info.descent || 0) - dz; // Total Descent
},
stats: { max: _.iMax, min: _.iMin, avg: _.iAvg, },
scale: {
axis : "y",
position : "right",
scale : { min: -1, max: +1 },
tickPadding: 16,
labelX : 25,
labelY : -8,
},
path: {
label : 'Slope',
yAttr : 'slope',
scaleX : 'distance',
scaleY : 'slope',
color : '#F00',
strokeColor : '#000',
strokeOpacity: "0.5",
fillOpacity : "0.25",
},
tooltip: {
chart: (item) => L._("m: ") + item.slope + slope.label,
marker: (item) => Math.round(item.slope) + slope.label,
order: 40,
},
summary: {
"minslope": {
label: "Min Slope: ",
value: (track, unit) => Math.round(track.slope_min || 0) + ' ' + unit,
order: 40
},
"maxslope": {
label: "Max Slope: ",
value: (track, unit) => Math.round(track.slope_max || 0) + ' ' + unit,
order: 41
},
"avgslope": {
label: "Avg Slope: ",
value: (track, unit) => Math.round(track.slope_avg || 0) + ' ' + unit,
order: 42
},
"ascent" : {
label: "Total Ascent: ",
value: (track, unit) => Math.round(track.ascent || 0) + ' ' + (this.options.imperial ? 'ft' : 'm'),
order: 43
},
"descent" : {
label: "Total Descent: ",
value: (track, unit) => Math.round(track.descent || 0) + ' ' + (this.options.imperial ? 'ft' : 'm'),
order: 45
},
}
};
}
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