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fcf3b03 | 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 | // @flow
import Point from '@mapbox/point-geometry';
import type {PossiblyEvaluatedPropertyValue} from "./properties";
import type StyleLayer from '../style/style_layer';
import type CircleBucket from '../data/bucket/circle_bucket';
import type LineBucket from '../data/bucket/line_bucket';
export function getMaximumPaintValue(property: string, layer: StyleLayer, bucket: CircleBucket<*> | LineBucket): number {
const value = ((layer.paint: any).get(property): PossiblyEvaluatedPropertyValue<any>).value;
if (value.kind === 'constant') {
return value.value;
} else {
return bucket.programConfigurations.get(layer.id).getMaxValue(property);
}
}
export function translateDistance(translate: [number, number]) {
return Math.sqrt(translate[0] * translate[0] + translate[1] * translate[1]);
}
export function translate(queryGeometry: Array<Point>,
translate: [number, number],
translateAnchor: 'viewport' | 'map',
bearing: number,
pixelsToTileUnits: number) {
if (!translate[0] && !translate[1]) {
return queryGeometry;
}
const pt = Point.convert(translate)._mult(pixelsToTileUnits);
if (translateAnchor === "viewport") {
pt._rotate(-bearing);
}
const translated = [];
for (let i = 0; i < queryGeometry.length; i++) {
const point = queryGeometry[i];
translated.push(point.sub(pt));
}
return translated;
}
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