three moment maps

.mean:an image containing the integrated intensities

.velo: an image containing the centroid velocities

.width: an image containing the line width map

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首先画integrated intensity.

从数据中提取x-y强度，

设置类似AIPS的配色方案，将轮廓间距设置为4Kkm/s(从4Kkm/s开始)，绘制轮廓，并生成用于打印的彩色PostScript文件：

 

 GRAPHIC> image hcop43.mean
W-GDF_RHSEC,  Absent section EXTREMA
W-GDF_RHSEC,  Absent section RESOLUTION
W-GDF_RHSEC,  Absent section NOISE
    GRAPHIC> limits /rgd
    GRAPHIC> set box square
    GRAPHIC> plot
    GRAPHIC> wedge
    GRAPHIC> resample 100 100 /bl 0
I-RESAMPLE,  Got    79 pages of virtual memory
    GRAPHIC> box /u s    表示unit second
S-CHAR,  Fonts loaded
    GRAPHIC> let hue[i] = 256-2*i  配色方案
    GRAPHIC> lut
    GRAPHIC> plot
    GRAPHIC> wed   !wedge
    GRAPHIC> levels 4 to 30 by 4   !轮廓从4km/s to 30km/s 间隔为4km/s
I-LEVELS,  Contour levels are :
     4.000         8.000         12.00         16.00         20.00
     24.00         28.00
    GRAPHIC> rgmap
I-RGMAP,  Contouring checks the blanking value   0.00000
I-RGMAP,  Pens  0 & 15 used for positive & negative levels
I-RGMAP,  Contour   1   4.00000
I-RGMAP,  Contour   2   8.00000
I-RGMAP,  Contour   3   12.0000
I-RGMAP,  Contour   4   16.0000
I-RGMAP,  Contour   5   20.0000
I-RGMAP,  Contour   6   24.0000
I-RGMAP,  Contour   7   28.0000
    GRAPHIC> hardcopy hcop43.ps /dev ps color