FRAMEn.p

The image frame file is a binary file that describes the contents of an image frame. For single panel (i.e. full screen) frames, y is zero. A single panel frame 1 uses file FRAME1.0; a 4-panel frame 2 uses files FRAME2.1 through FRAME2.4.

The default size of the user extension is zero. The size can be modified by editing the the file m0panel.h and rebuilding McIDAS-X. No SSEC programs use the extension.

The navigation block contains the information for determining the location of the data points in physical space. The navigation block's format varies with each satellite. See the section titled Image-specific characteristics for image files (AREAnnnn).

For image frame Application Program Interfaces (APIs), refer to the API functions listing.

Frame directory

Word	Description
0	sensor source number; -1 means no image is currently loaded on the frame and the remaining words can be ignored; see the SATANNOT file in this chapter for a description of the sensor source numbers
1	year and Julian day of the image, ccyyddd
2	time of the image, hhmmss
3	spectral band
4	upper-left image line in satellite coordinates
5	upper-left image element in satellite coordinates
6	reserved for system use
7	image frame line containing the upper-left image line
8	image frame element containing the upper-left image element
9	value specified for lmag in IMGDISP's MAG keyword, if it's positive; 1 if lmag is negative
10	displayed line resolution factor (where 1=base resolution of the instrument) if lmag in IMGDISP's MAG kewyord is negative; line resolution factor of source image file if lmag is positive
11	displayed element resolution if emag in IMGDISP's MAG keyword is negative; element resolution factor of source image file if emag is positive
12	year and Julian day the image was created, ccyyddd
13	time the image was created, hhmmss
14	year and Julian day the image frame was created, ccyyddd
15	time the image frame was created, hhmmss
16-18	reserved
19	value specified for lmag in IMGDISP's MAG keyword
20	value specified for emag in IMGDISP's MAG keyword
21-31	reserved
32	if positive, element blowup; if negative, same as word 11
33-35	reserved
36	original source type if changed by IMGCOPY, IMGREMAP, etc.; CHARACTER
37-38	file name used by the SU application; CHARACTER
39-52	reserved
53	displayed geographic line resolution x100 if GEORES=YES is specified in IMGDISP; 0 if GEORES=YES is not specified
54	displayed geographic element resolution x100 if GEORES=YES is specified in IMGDISP; 0 if GEORES=YES is not specified
55-60	ASCII ADDE dataset name from IMGDISP
61	position number within the ADDE dataset
62-63	NEXRAD station ID (NEXRAD image only)

API functions

Fortran Function	Description
erafrm	flags a frame directory or navigation block as unused (erased)
frtonv	reads a navigation block
getfrm	reads a frame directory block
m0getusr	reads a user extension block
m0putusr	writes a user extension block
nvtofr	writes a navigation block
putfrm	writes a frame directory block