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fitsdisp

显示 FITS 元数据

    说明

    示例

    fitsdisp(filename) 显示指定 FITS 文件中所有标头/数据单元 (HDU) 的元数据。

    示例

    fitsdisp(filename,Name=Value) 使用一个或多个名称-值参量指定选项。例如,fitsdisp(filename,Mode="full") 显示所有 HDU 关键字。

    示例

    全部折叠

    fitsdisp("tst0012.fits")
    
    HDU:  1 (Primary HDU)
    	SIMPLE  =                    T / Standard FITS file
    	BITPIX  =                  -32 / No. of bits per pixel
    	NAXIS   =                    2 / No. of axes in matrix
    	NAXIS1  =                  102 / No. of pixels in X
    	NAXIS2  =                  109 / No. of pixels in Y
    	EXTEND  =                    T / There may be FITS extensions
    	CDELT1  =                  3.1 / Coordinate increment
    	CRVAL1  =               1299.1 / Coordinate of reference pixel
    	CRPIX1  =                 12.3 / Reference pixel in X
    ...
    
    fitsdisp("tst0012.fits",Index=[4 5])
    
    HDU:  4 
    	XTENSION= 'IMAGE   '           / FITS IMAGE Extension
    	BITPIX  =                   16 / No. of bits per pixel
    	NAXIS   =                    3 / Three axes
    	NAXIS1  =                   73 / No. of pixels in X
    	NAXIS2  =                   31 / No. of pixels in Y
    	NAXIS3  =                    5 / No. of pixels in Z
    	PCOUNT  =                    0 / No group parameters
    	GCOUNT  =                    1 / One data group only
    	EXTNAME = 'quality '           / Extension name
    	EXTVER  =                    1 / Extension version is 1
    	OBJECT  = 'Ramp 16-bit'        / Name of image
    	ORIGIN  = 'ESO     '           / File was prepared at ESO-Garching
    	DATE    = '20/08/92'           / Creation date of this file
    	COMMENT  This test file was created by P.Grosbol, ESO (pgrosbol@eso.org)
    	COMMENT  Simple 16-bit ramp wave pattern for testing of FITS readers
    	CDELT1  =                 -2.3 / Coordinate increment
    	CRVAL1  =                -73.0 / Coordinate of reference pixel
    	CRPIX1  =                 12.1 / Reference pixel in X
    	CDELT2  =                  7.1 / Coordinate increment
    	CRVAL2  =                300.6 / Coordinate of reference pixel
    	CRPIX2  =                -11.3 / Reference pixel in Y
    	CDELT3  =                 .003 / Coordinate increment
    	CRVAL3  =                 21.2 / Coordinate of reference pixel
    	CRPIX3  =                199.0 / Reference pixel in Y
    
    HDU:  5 
    	XTENSION= 'TABLE   '           / FITS ASCII table extension
    	BITPIX  =                    8 / Character data 8 bits per pixel
    	NAXIS   =                    2 / ASCII tables has 2 axes
    	NAXIS1  =                   59 / Characters in row
    ...
    
    fitsdisp("tst0012.fits",Index=5,Mode="full")
    
    HDU:  5 
    	XTENSION= 'TABLE   '           / FITS ASCII table extension
    	BITPIX  =                    8 / Character data 8 bits per pixel
    	NAXIS   =                    2 / ASCII tables has 2 axes
    	NAXIS1  =                   59 / Characters in row
    	NAXIS2  =                   53 / No. or rows in table
    	PCOUNT  =                    0 / No group parameters
    	GCOUNT  =                    1 / only one group
    	TFIELDS =                    8 / No. of table fields
    	
    	EXTNAME = 'Asciitable'         / Extension name
    	EXTVER  =                    1 / Extension version is 1
    	EXTLEVEL=                    1 / Extension level is 1
    ...
    

    输入参数

    全部折叠

    FITS 文件的名称,指定为字符串标量或字符向量。

    示例: "myFile.fits"

    名称-值参数

    将可选的参量对组指定为 Name1=Value1,...,NameN=ValueN,其中 Name 是参量名称,Value 是对应的值。名称-值参量必须出现在其他参量之后,但参量对组的顺序无关紧要。

    示例: fitsdisp("myFile.fits",Mode="min")

    在 R2021a 之前,使用逗号分隔每个名称和值,并用引号将 Name 引起来。

    示例: fitsdisp("myFile.fits","Mode","min")

    要显示的 HDU,指定为正整数标量或正整数行向量。

    示例: Index=1

    示例: Index=[2 3]

    数据类型: double

    显示类型,指定为 "standard""min""full"

    • "standard" - 显示标准关键字。

    • "min" - 仅显示类型和大小。

    • "full" - 显示所有关键字。

    数据类型: string | char

    版本历史记录

    在 R2012a 中推出