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COG optimizations #250

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Merged
m-mohr merged 2 commits into from
Apr 15, 2026
Merged

COG optimizations #250

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9a31b4e
Disable interpolation
m-mohr Apr 15, 2026
3a33b99
Load optimized COGs faster
m-mohr Apr 15, 2026
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4 changes: 2 additions & 2 deletions src/composables/useSettings.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -166,9 +166,9 @@ export const get_global_pmtiles_url = (year: number) => {
}

export const AREA_OVERVIEW_COG =
'https://s3.us-west-2.amazonaws.com/us-west-2.opendata.source.coop/m-mohr/ftw-confidence-layers/prue_v1_field_area_500m_fieldsonly.tif'
'https://s3.us-west-2.amazonaws.com/us-west-2.opendata.source.coop/m-mohr/ftw-confidence-layers/prue_v1_field_area_500m_fieldsonly_uint8_3857.tif'
export const CONFIDENCE_OVERVIEW_COG =
'https://s3.us-west-2.amazonaws.com/us-west-2.opendata.source.coop/m-mohr/ftw-confidence-layers/prue_v1_confidence_global.tif'
'https://s3.us-west-2.amazonaws.com/us-west-2.opendata.source.coop/m-mohr/ftw-confidence-layers/prue_v1_confidence_global_uint8_3857.tif'

export default function useSettings() {
return {
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8 changes: 6 additions & 2 deletions src/layers/Global-Overview-Layers.ts
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Expand Up @@ -38,12 +38,16 @@ export const createGlobalOverviewLayer = (settings: Settings) => {
source: new GeoTIFF({
sources: [
{
// todo: try https://tiles.rdnt.io/tiles/{z}/{x}/{y}@2x?url=
url: settings.aggregate === 'confidence' ? CONFIDENCE_OVERVIEW_COG : AREA_OVERVIEW_COG,
nodata: 255,
min: 0,
max: settings.aggregate === 'confidence' ? 1 : 2500,
max: 200,
},
],
interpolate: false,
sourceOptions: {
blockSize: 512 * 1024, // 512KB: capture all IFDs in 1-2 requests instead of 100+
},
Comment on lines +48 to +50
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@ahocevar ahocevar Apr 15, 2026

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This works around a temporary ol/geotiff issue - with ol@10.9 and geotiff@3.1.0-beta.0, you don't need it. But it also does not hurt keeping it.

}),
minZoom: 0,
maxZoom: GLOBAL_DATA_MAP_FIELD_START_ZOOM_LEVEL,
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