The avatar for @pnavarrc
Pablo Navarro
Mathematical engineer. Software developer at Act Now Coalition.
Public
Edited
Mar 11, 2023
2
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d3.geoMercator()
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Type JavaScript, then Shift-Enter. Ctrl-space for more options. Arrow ↑/↓ to switch modes.

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grasslandImage = await bigHornMontanaWebMercator.getImage()
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grasslandImage.pixelIsArea()
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width = grasslandImage.getWidth()
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height = grasslandImage.getHeight()
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grasslandImage.getOrigin()
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p = [Math.floor(width / 2), Math.floor(height/2)]
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coords = [origin[0] / width + p[0] / width, origin[1]/height + p[1] / height]
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grasslandImage.getBoundingBox()
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grasslandImage.dataView
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Type JavaScript, then Shift-Enter. Ctrl-space for more options. Arrow ↑/↓ to switch modes.

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fd.GeoAsciiParams
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grasslandImage.fileDirectory
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origin = grasslandImage.getOrigin()
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GeoTIFF = require("geotiff")
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plottyRenderer(values, 0, 255, "greys")
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image.getResolution()
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values = (
await image.readRasters()
)[0]
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u = _.uniq(values)
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c = _.countBy(values, d => d)
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sqm_176 = c[176] * 900
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acre_176 = 0.000247105 * sqm_176
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e = d3.extent(values)
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values.length / (imageWidth / 6)
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imageHeight
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xmin = 0
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xmax = imageWidth / image.getTileWidth()
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ymin = 0
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th = image.getTileHeight()
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nh = imageHeight / th
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image.getResolution()
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image.getGDALNoData()
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image.geoKeys.ProjectionGeoKey
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bbox = image.getBoundingBox()
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bboxWidth = bbox[2] - bbox[0]
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bboxHeight = bbox[3] - bbox[1]
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x0 = 0 * bboxWidth + bbox[0]
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image.geoKeys.GeogEllipsoidGeoKey
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fd = image.getFileDirectory()
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fd.GDAL_METADATA
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image.getGDALMetadata()
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image.geoKeys
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minVal = d3.min(values)
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image.getBytesPerPixel()
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imageWidth = image.getWidth()
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imageHeight = image.getHeight()
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point = image
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values[0]
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image = bigHornMontana.getImage()
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bigHornMontana = FileAttachment("big-horn-montana.tiff")
.arrayBuffer()
.then((buffer) => GeoTIFF.fromArrayBuffer(buffer))
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plotty = require("plotty@0.3.1/dist/plotty.js")
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import { plottyRenderer } from "@jbaba/display-a-geotiff-file"
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bigHornMontanaWebMercator = FileAttachment("big-horn-montana-web-mercator.TIF").arrayBuffer().then(buffer => GeoTIFF.fromArrayBuffer(buffer))
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