node-gdal node-gdal

  • API Docs for Version: 0.11.0

    • Show:

    gdal.RasterBandPixels

    A representation of a RasterBand's pixels.

    Note: Typed arrays should be created with an external ArrayBuffer for versions of node >= 0.11

    var n = 16*16;
var data = new Float32Array(new ArrayBuffer(n*4));
//read data into the existing array
band.pixels.read(0,0,16,16,data);`

    Table of Contents

    Methods

    get
    (
    • x
    • y
    )
    Number

    Defined in src/collections/rasterband_pixels.cpp:93

    Returns the value at the x, y coordinate.

    Parameters:

    • x Integer
    • y Integer

    Returns:

    Number
    read
    (
    • x
    • y
    • width
    • height
    • data] The [TypedArray
    • options
    )
    TypedArray

    Defined in src/collections/rasterband_pixels.cpp:162

    Reads a region of pixels.

    Parameters:

    Returns:

    TypedArray:

    A TypedArray of values.

    readBlock
    (
    • x
    • y
    • data] The [TypedArray
    )
    TypedArray

    Defined in src/collections/rasterband_pixels.cpp:357

    Reads a block of pixels.

    Parameters:

    Returns:

    TypedArray:

    A TypedArray of values.

    set
    (
    • x
    • y
    • value
    )

    Defined in src/collections/rasterband_pixels.cpp:127

    Sets the value at the x, y coordinate.

    Parameters:

    • x Integer
    • y Integer
    • value Number
    write
    (
    • x
    • y
    • width
    • height
    • data
    • options
    )

    Defined in src/collections/rasterband_pixels.cpp:271

    Writes a region of pixels.

    Parameters:

    • x Integer
    • y Integer
    • width Integer
    • height Integer
    • data TypedArray

      The TypedArray to write to the band.

    • [options] Object optional
      • [buffer_width=x_size] Integer optional
      • [buffer_height=y_size] Integer optional
      • [pixel_space] Integer optional
      • [line_space] Integer optional
    writeBlock
    (
    • x
    • y
    • data
    )

    Defined in src/collections/rasterband_pixels.cpp:415

    Writes a block of pixels.

    Parameters:

    • x Integer
    • y Integer
    • data TypedArray

      The TypedArray of values to write to the band.