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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | 7x 7x 7x 7x 1x 7x 7x 7x 7x 7x | import { Component, Input, OnChanges } from '@angular/core';
import * as _ from 'lodash';
@Component({
selector: 'cd-osd-performance-histogram',
template: require('./osd-performance-histogram.component.html'),
styles: []
})
export class OsdPerformanceHistogramComponent implements OnChanges {
@Input()
histogram: any;
valuesStyle: any;
last = {};
constructor() {}
ngOnChanges() {
this.render();
}
hexdigits(v): string {
const i = Math.floor(v * 255).toString(16);
return i.length === 1 ? '0' + i : i;
}
hexcolor(r, g, b) {
return '#' + this.hexdigits(r) + this.hexdigits(g) + this.hexdigits(b);
}
render() {
if (!this.histogram) {
return;
}
let max = 0;
_.each(this.histogram.values, (row, i) => {
_.each(row, (col, j) => {
let val;
if (this.last && this.last[i] && this.last[i][j]) {
val = col - this.last[i][j];
} else {
val = col;
}
max = Math.max(max, val);
});
});
this.valuesStyle = this.histogram.values.map((row, i) => {
return row.map((col, j) => {
const val = this.last && this.last[i] && this.last[i][j] ? col - this.last[i][j] : col;
const g = max ? val / max : 0;
const r = 1 - g;
return { backgroundColor: this.hexcolor(r, g, 0) };
});
});
this.last = this.histogram.values;
}
}
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