get pixel value for onclick() in tilelayer that renders COG with sublayer type of BitmapLayer

[lawrencenika]

I successfully loaded COG on deckgl map react with bitmaplayer to render the tiles, but when I add the onClick to TileLayer that wraps the bitmaplayer, it only prints the following pickinfo:

bitmap
: 
pixel
: 
(2) [12, 57]
size
: 
{width: 256, height: 256}
uv
: 
(2) [0.048095703125, 0.2255859375]
[[Prototype]]
: 
Object
color
: 
Uint8Array(4) [12, 57, 197, 1, buffer: ArrayBuffer(4), byteLength: 4, byteOffset: 0, length: 4, Symbol(Symbol.toStringTag): 'Uint8Array']
coordinate
: 
(2) [-49.920889005604366, -6.429468891539225]
devicePixel
: 
(2) [116, 693]
index
: 
0
layer
: 
TileLayer {props: {…}, id: 'cog_Hansen_GFC-2023-v1.11_lossyear_00N_050W_chunk_100_1_2021.tif', count: 0, internalState: LayerState, lifecycle: 'Matched. State transferred from previous layer', …}
picked
: 
true
pixel
: 
(2) [128.9156709361876, 727.2611050557671]
pixelRatio
: 
0.8992673992673993
sourceLayer
: 
BitmapLayer {props: {…}, id: 'cog_Hansen_GFC-2023-v1.11_lossyear_00N_050W_chunk_100_1_2021.tif-5920-8485-14', count: 22, internalState: LayerState, lifecycle: 'Matched. State transferred from previous layer', …}
sourceTile
: 
Tile2DHeader {index: OSMNode, isVisible: true, isSelected: true, parent: null, children: Array(0), …}
sourceTileSubLayer
: 
BitmapLayer {props: {…}, id: 'cog_Hansen_GFC-2023-v1.11_lossyear_00N_050W_chunk_100_1_2021.tif-5920-8485-14', count: 22, internalState: LayerState, lifecycle: 'Matched. State transferred from previous layer', …}
tile
: 
Tile2DHeader {index: OSMNode, isVisible: true, isSelected: true, parent: null, children: Array(0), …}
viewport
: 
WebMercatorViewport {_frustumPlanes: {…}, id: 'default-view', x: 0, y: 0, width: 546, …}
x
: 
128.9156709361876
y
: 
727.2611050557671

with the following code:

            onClick: (pickInfo) => {
                console.log(pickInfo);      
            },

For the same point, I got 8000+ for pixel value from the same point (lat, lon) via titiler. How come the pixel value here is an array of length 2 instead?

[Pessimistress]

I got 8000+ for pixel value from the same point (lat, lon) via titiler

Not sure what this "8000+" is. pixel is documented here: https://deck.gl/docs/api-reference/layers/bitmap-layer#pixel-picking