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Performance optimazations

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This commit is contained in:
Pieter Vander Vennet 2022-01-26 20:47:08 +01:00
parent 632e7e9f9a
commit d2b245ab54
15 changed files with 321 additions and 214 deletions
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20
Logic/BBox.ts
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@ -48,12 +48,12 @@ export class BBox {
}
return feature.bbox;
}
static bboxAroundAll(bboxes: BBox[]): BBox{
static bboxAroundAll(bboxes: BBox[]): BBox {
let maxLat: number = -90;
let maxLon: number= -180;
let minLat: number= 80;
let minLon: number= 180;
let maxLon: number = -180;
let minLat: number = 80;
let minLon: number = 180;
for (const bbox of bboxes) {
maxLat = Math.max(maxLat, bbox.maxLat)
@ -61,7 +61,7 @@ export class BBox {
minLat = Math.min(minLat, bbox.minLat)
minLon = Math.min(minLon, bbox.minLon)
}
return new BBox([[maxLon, maxLat],[minLon,minLat]])
return new BBox([[maxLon, maxLat], [minLon, minLat]])
}
static fromTile(z: number, x: number, y: number): BBox {
@ -75,6 +75,14 @@ export class BBox {
return BBox.fromTile(...Tiles.tile_from_index(i))
}
public unionWith(other: BBox) {
return new BBox([[
Math.max(this.maxLon, other.maxLon),
Math.max(this.maxLat, other.maxLat)],
[Math.min(this.minLon, other.minLon),
Math.min(this.minLat, other.minLat)]])
}
/**
* Constructs a tilerange which fully contains this bbox (thus might be a bit larger)
* @param zoomlevel