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test.html
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test.html
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<!DOCTYPE html>
<html>
<head>
<script src="./node_modules/chroma-js/chroma.min.js"></script>
<script src="./node_modules/flug/index.js"></script>
<script src="./node_modules/geotiff/dist-browser/geotiff.js"></script>
<script src="./dist/web/geotiff-tile.js"></script>
<script>
window.process = {
env: {
TEST_timed: false,
// TEST_NAME: "geotiff tile (near-vectorize)",
// TEST_NAME: "pulling tile from 4-band Web Mercator GeoTIFF"
// TEST_NAME: "tile greater than extent of source projection",
// TEST_NAME: "clamp"
}
}
</script>
</head>
<body>
<script>
function three_to_four_bands({ tile, height, width }) {
const data = new Array(4 * height * width).fill(255);
for (let b = 0; b <= 2; b++) {
for (let r = 0; r < height; r++) {
for (let c = 0; c < width; c++) {
data[(r * 4 * width) + (4 * c) + b] = tile[b][r][c];
}
}
}
return data;
}
function displayTile({ id, tile, height, width }) {
const data = Uint8ClampedArray.from(tile);
const imageData = new ImageData(data, width, height);
const canvas = document.createElement("CANVAS");
canvas.id = id;
canvas.height = imageData.height;
canvas.width = imageData.width;
const context = canvas.getContext("2d");
context.webkitImageSmoothingEnabled = false;
context.mozImageSmoothingEnabled = false;
context.imageSmoothingEnabled = false;
context.putImageData(imageData, 0, 0);
context.webkitImageSmoothingEnabled = false;
context.mozImageSmoothingEnabled = false;
context.imageSmoothingEnabled = false;
document.body.appendChild(canvas);
canvas.style.background = "darkred";
canvas.style.border = "5px solid chartreuse";
canvas.style.margin = "10px";
canvas.style.height = "512px";
}
test("displaying warped geotiff", async ({ eq }) => {
const url = "./data/umbra_mount_yasur.tiff";
const geotiff = await GeoTIFF.fromUrl(url);
const { height, width, tile } = await geotiff_tile.createTile({
geotiff,
// bbox for https://c.tile.openstreetmap.org/14/15903/9098.png
bbox: [169.43115234375, -19.53908413550933, 169.453125, -19.518375478601566],
bbox_srs: 4326,
debug_level: 0,
expr: ({ pixel }) => [pixel[0], pixel[0], pixel[0]],
method: "near",
pixel_depth: 3,
tile_array_types_strategy: "auto",
tile_height: 512,
tile_layout: "[band][row][column]",
tile_srs: 4326,
tile_width: 512,
timed: false
});
eq(tile[0][0].constructor.name, "Array");
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("pulling tile from antarctic COG", async ({ eq }) => {
const url = "./data/GA4886_VanderfordGlacier_2022_EGM2008_64m-epsg3031.cog";
const geotiff = await GeoTIFF.fromUrl(url);
const scale = chroma.scale('Spectral').domain([0, -5000]);
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [2409289.215, -965456.642, 2577115.317, -835539.341],
bbox_srs: 3031,
expr: ({ pixel }) => {
const elevation = pixel[0];
if (elevation == null || elevation >= 0) return [0, 0, 0];
return scale(elevation).rgb();
},
method: "near",
pixel_depth: 3,
tile_array_types_strategy: "auto",
tile_height: 256,
tile_layout: "[band][row][column]",
tile_srs: 3031,
tile_width: 211,
timed: false
});
eq(tile[0][0].constructor.name, "Array");
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("pulling tile from Harvey COG", async ({ eq }) => {
const url = "https://storage.googleapis.com/pdd-stac/disasters/hurricane-harvey/0831/20170831_172754_101c_3b_Visual.tif";
const geotiff = await GeoTIFF.fromUrl(url);
const { height, width, tile } = await geotiff_tile.createTile({
geotiff,
// mercator tile at x: 956, y: 1695, z: 12
bbox: [-95.976562, 29.535232, -95.888671, 29.611673],
method: "near",
tile_height: 64,
tile_layout: "[band][row][column]",
tile_width: 64,
timed: false,
});
eq(tile[0][0].constructor.name, "Uint8Array");
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("pulling all black empty tile from Harvey COG", async ({ eq }) => {
// this raster uses the color black as no data
const url = "https://storage.googleapis.com/pdd-stac/disasters/hurricane-harvey/0831/20170831_172754_101c_3b_Visual.tif";
const geotiff = await GeoTIFF.fromUrl(url);
const { height, width, tile } = await geotiff_tile.createTile({
geotiff,
// mercator tile at x: 61158, y: 108475, z: 18
// tile is in the "nodata" region of the geotiff
bbox: [-96.01226806640625, 29.616445727622548, -96.01089477539062, 29.61763959537609],
bbox_srs: 4326,
debug_level: 0,
method: "near",
round: false,
timed: false,
tile_height: 256,
tile_layout: "[band][row][column]",
tile_no_data: NaN,
tile_width: 256,
tile_srs: 3857,
use_overview: true
});
console.log("empty tile harvey:", tile);
// it's an array because of fill values
eq(tile[0][0].constructor.name, "Uint8Array");
eq(tile[0][0][0], 0);
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("pulling tile from 4-band Web Mercator GeoTIFF", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("./data/gadas.tif");
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [74.35546875, 4.214943141390651, 84.90234375, 13.752724664396988],
expr: async ({ pixel: [r, g, b, a] }) => b > 150 ? [223, 255, 0] : [r, g, b],
method: "near",
tile_array_types: ["Array", "Array", "Uint8Array"],
tile_height: 512,
tile_layout: "[band][row][column]",
tile_resolution: 0.25,
tile_width: 512,
timed: false,
turbo: true
});
eq(tile[0][0].constructor.name, "Uint8Array");
const data = three_to_four_bands({ height, width, tile })
displayTile({ height, width, tile: data });
});
test("pulling tile from 3-band Geographic GeoTIFF", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("./data/wildfires.tiff");
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [-122.49755859375, 38.8520508, -120.06958007812499, 40.697299008636755],
bbox_srs: 4326,
method: "near",
round: true,
tile_height: 512,
tile_layout: "[band][row][column]",
tile_srs: 4326,
tile_width: 512,
timed: false
});
eq(tile[0][0].constructor.name, "Uint8Array");
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("geotiff tile crop by cutline", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("./data/wildfires.tiff");
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [-122.49755859375, 38.8520508, -120.06958007812499, 40.697299008636755],
bbox_srs: 4326,
method: "near",
cutline: {
type: "Polygon",
coordinates: [
[
[-121.2835693359375, 39.77467490431838],
[-121.2835693359375, 40.697299008636755],
[-120.06958007812499, 40.697299008636755],
[-120.06958007812499, 39.77467490431838],
[-121.2835693359375, 39.77467490431838]
]
]
},
round: true,
tile_height: 512,
tile_layout: "[band][row][column]",
tile_srs: 4326,
tile_width: 512,
timed: false
});
eq(tile[0][0].constructor.name, "Uint8Array");
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("pulling tile from 3-band Geographic GeoTIFF as layout [row][column][band]", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("./data/wildfires.tiff");
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [-122.49755859375, 38.8520508, -120.06958007812499, 40.697299008636755],
bbox_srs: 4326,
method: "near",
round: true,
tile_height: 512,
tile_layout: "[row][column][band]",
tile_srs: 4326,
tile_width: 512,
timed: false
});
eq(tile[0][0].constructor.name, "Uint8Array");
eq(tile.length, height);
eq(tile[0].length, width);
eq(tile[0][0].length, 3);
const data = tile.map(row => row.map(values => [...values, 255] )).flat(2);
displayTile({ tile: data, height, width});
});
test("geotiff tile (near-vectorize)", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("./data/wildfires.tiff");
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [ -122.0361328125, 40.97989806962013, -121.9921875, 41.0130657870063 ],
bbox_srs: 4326,
method: "near-vectorize",
round: true,
tile_height: 512,
tile_layout: "[band][row][column]",
tile_srs: 4326,
tile_width: 512,
timed: false
});
console.log("geotiff tile (near-vectorize)", tile);
eq(tile[0][0].constructor.name, "Uint8Array");
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("ycbcr", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("https://maxar-ard-samples.s3.amazonaws.com/v3/australia_vineyards/50/213133231011/2019-10-07/10500100191CD200-visual.tif");
console.log("geotiff:", geotiff);
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [
12802284.9934276,
-4026091.1538368035,
12807176.963237852,
-4023811.776507525
],
bbox_srs: 3857,
method: "near-vectorize",
round: true,
tile_height: 60,
tile_layout: "[band][row][column]",
tile_srs: 3857,
tile_width: 128,
timed: false,
use_overview: true,
turbo: false
});
eq(tile[0][0].constructor.name, "Uint8Array");
eq(tile.length, 3);
console.log("tile:", tile)
const data = three_to_four_bands({ height, width, tile })
displayTile({ tile: data, height, width});
});
test("clamp", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("./data/dom1_32_356_5699_1_nw_2020.tif");
// console.log("geotiff:", geotiff);
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [771265.3262627776, 6698176.788629993, 771402.4894539987, 6698269.944045576],
bbox_srs: 3857,
method: "near-vectorize",
round: true,
tile_height: 60,
tile_layout: "[band][row][column]",
tile_no_data: -32767,
tile_srs: 3857,
tile_width: 60,
timed: false,
use_overview: true,
turbo: false
});
eq(tile[0][0][0], -32767);
eq(tile[0][0].constructor.name, "Float32Array");
eq(tile.length, 1);
console.log("clamp tile:", tile)
const data = three_to_four_bands({ height, width, tile: [tile[0], tile[0], tile[0]] })
displayTile({ tile: data, height, width});
});
test("tile greater than extent of source projection", async ({ eq }) => {
const geotiff = await GeoTIFF.fromUrl("./data/gadas-world.tif");
// console.log("geotiff:", geotiff);
const { height, width, tile } = await geotiff_tile.createTile({
debug_level: 0,
geotiff,
bbox: [-180, -90, 180, 90],
bbox_srs: 4326,
method: "near-vectorize",
round: true,
tile_height: 180,
tile_layout: "[row,column,band]",
tile_srs: 4326,
tile_width: 360,
timed: false,
use_overview: true,
turbo: false
});
eq(tile.slice(0, 4), Uint8Array.from([0, 0, 0, 0]));
eq(tile.length, 259200);
console.log("gadas world tile:", tile);
displayTile({ tile, height, width});
});
</script>
</body>
</html>