批處理重投影MOD04

1、IDL 代碼共享 -批處理重投影 MOD042011-03-31 19:44:49| 分類： 代碼類 | 標簽： |字號 大中小 訂閱 ;+; :Description:; Describe the procedure.; Reproject MODISs mod04 to Lambert Conformal Conic.; :Params:; input_directory; output_directory; :Examples:; input_directory = c:mod04; output_directory = d:mod04_out; reproject_mod04, inp

2、ut_directory, output_directory ; :Author: dabinPRO reproject_mod04, input_directory, output_directoryCOMPILE_OPT IDL2ENVI, /RESTORE_BASE_SAVE_FILESENVI_BATCH_INIT, LOG_FILE = reproj_mod04.logIF STRCMP(STRMID(input_directory, 0, 1, /REVERSE_OFFSET), ) THEN BEGIN input_directory = input_directory + EN

3、DIFIF STRCMP(STRMID(output_directory, 0, 1, /REVERSE_OFFSET), ) THEN BEGIN output_directory = output_directory + ENDIFinput_filenames = FILE_SEARCH(input_directory + MOD04 + *.hdf)IF SIZE(input_filenames, /N_ELEMENT) GE 1 THEN BEGIN ;Output method schema is:;0 = Standard, 1 = Projected, 2 = Standard

4、 and Projected out_method = 1name = China_Lambert_Conformal_Conic datum = WGS-84params = 6378137.0, 6356752.3, 0.000000,$105.000000, 0.0, 0.0, 25.000000, 47.000000 type = 4out_projection = ENVI_PROJ_CREATE(TYPE = type, NAME = name, DATUM = datum,$PARAMS = params)interpolation_method = 6 swath_name =

5、 mod04 sd_names = Image_Optical_Depth_Land_And_Oceanfilecount = SIZE(input_filenames, /DIMENSIONS) FOR i = 0, filecount0 - 1 DO BEGINtmp_filename = input_filenamesi fname = getfilename(tmp_filename) out_rootname = STRMID(fname, 0, STRLEN(fname) - 4)CONVERT_MODIS_DATA, IN_FILE = tmp_filename, OUT_PAT

6、H = output_directory, $OUT_ROOT = out_rootname, /HIGHER_PRODUCT, /SWATH, $ SWT_NAME = swath_name, OUT_METHOD = out_method, $ INTERP_METHOD = interpolation_method, SD_NAMES = sd_names, $ NUM_X_PTS = 50, NUM_Y_PTS = 50, /NO_MSG, OUT_PROJ = out_projection, $BACKGROUND = 0.0, FILL_REPLACE_VALUE = 0.0 EN

7、DFORENDIFENVI_BATCH_EXITPRINT, Job Done!END以上程序運行用到 MODIS Conversion Toolkit, 下載地址：IDL 代碼共享 -創(chuàng)建 GIF 動畫2011-04-10 17:32:42| 分類： 代碼類 | 標簽： |字號 大中小 訂閱 ;+; :Description:; Create a GIF animation.; :Params:; in_filenamelist- Filename list. The columns and rows of image in each must be same.; outfname- Out

8、put GIF filename.; :Keywords:; delay_time- Set this keyword to an integer giving the delay in hundredths (1/100) of a second after the decoder displays the current image. This keyword can be settoa different value for each image within the file.; :Usage:; file_list = E:IDLtestinputtiff3B42_030501_00

9、.tif, $;E:IDLtestinputtiff3B42_030501_03.tif, $;E:IDLtestinputtiff3B42_030501_06.tif, $;E:IDLtestinputtiff3B42_030501_09.tif, $;E:IDLtestinputtiff3B42_030501_12.tif, $;E:IDLtestinputtiff3B42_030501_15.tif, $;E:IDLtestinputtiff3B42_030501_18.tif, $;E:IDLtestinputtiff3B42_030501_21.tifoutfname = E:IDL

10、testinputtiffanimation.gifcreate_gif_animation, file_list, outfname, delay_time = 20; :Author: Dabin Ji; :Email:; :Date: 2011-4-10PRO create_gif_animation, in_filenamelist, outfname, delay_time = delay_time COMPILE_OPT IDL2;Get the number of input files.file_nums = N_ELEMENTS(in_filenamelist)IF (fil

11、e_nums GT 0) AND STRCMP(in_filenamelist0, ) THEN BEGINFOR i = 0, file_nums - 1 DO BEGINimg = READ_IMAGE(in_filenamelisti, red, green, blue);Get the size information.img_s = SIZE(img);If the dimension of the img is 3-D, then convert it to a index image first.IF (img_s0 EQ 3) THEN BEGIN img_idx = COLO

12、R_QUAN(img0, *, *, img1, *, *, img2, *, *, tbl_r, tbl_g, tbl_b);Reverse array in the second dimension.img_idx = REVERSE(REFORM(img_idx), 2)WRITE_GIF, outfname, img_idx, tbl_r, tbl_g, tbl_b, $DELAY_TIME = delay_time, /MULTIPLE, REPEAT_COUNT = 0 ENDIF;If the dimension of the img is 2-D, then write it

13、to the gif file directly. IF (img_s0 EQ 2) THEN BEGINimg = REVERSE(REFORM(img), 2)IF (N_ELEMENTS(red) GT 0) AND (N_ELEMENTS(green) GT 0) AND(N_ELEMENTS(blue) GT 0) THEN BEGINWRITE_GIF, outfname, img, red, green, blue, DELAY_TIME = delay_time, /MULTIPLE,REPEAT_COUNT = 0ENDIFENDIFENDFOR;Close the file

14、.WRITE_GIF, outfname, /CLOSEENDIFENDIDL 代碼共享 -IDL 讀取文本格式矩陣數(shù)據(jù)2011-03-30 19:48:17| 分類： 代碼類 | 標簽： |字號 大中小 訂閱 ;+; :Description:; Read digital number sotred in a text file, and the; separater of the data in each line must be a Space or Tab.; :Params:; infilename : Input filename of the text file.; :Uses:

15、; data = read_txt_data_file(c:test.txt) ; :Author: dabin; :Email:; :Date: 2009-12-16FUNCTION read_txt_data_file, infilename ;Get the number of lines nlines = FILE_LINES(infilename)OPENR, lun1, infilename, /GET_LUN;Used to store a line tmp_str = ;Get columns of the input fileREADF, lun1, tmp_strtmp = STRSPLIT(tmp_str, COUNT = col_count) POINT_LUN, lun1, 0;Allocate memorydata = FLTARR(col_count, nlines)row_count = 0LWHILE EOF(lun1) DO BEGINREA