【170】◀▶ IDL 学习初体验-全
IDL Reference
参考：IDL部分系统函数(全)
- Relational Operators：【比较运算符】EQ(=), GT(>), LT(<), GE(≥), LE(≤), NE(!=).
- Mathematical Operators：【数学运算符】+、-、*、/、++、--、MOD
- Matrix Operators：【矩阵运算符】#、##
- Logical Operators：【逻辑运算符】&&（与）、||（或）、~（非）
- Bitwise Operators：AND、OR、NOT、XOR
- Minimum and Maximum Operators：>、<
- Other Operators：[]、()、[::]、?:（条件）、.（对象方法）、*（指针）
- IDL_VALIDNAME：判断变量名是否有效
- DEFSYSV：自定义系统变量
- 数组：
- 修改数组大小：a=indgen(3, 10)，b=a(0:2, 0:5)，b相当于indgen(3,6)
- MAKE_ARRAY：【函数】构建数组，返回值为数组。
语法：Result = MAKE_ARRAY ( [D1[, ..., D8]], DIMENSION=vector, INCREMENT=value, /INDEX, /NOZERO, SIZE=vector, START=value, TYPE=type_code, VALUE=value, /BOOLEAN, /BYTE, /COMPLEX, /DCOMPLEX, /DOUBLE, /FLOAT, /INTEGER, /L64, /LONG, /OBJ, /PTR, /STRING, /UINT, /UL64, /ULONG )- INCREMENT：增加量；
- /INDEX：等差增加；
- /NOZERO：不出现0值，默认情况下是0值；
- START=value：开始的数值；
- TYPE=type_code：返回值的类型，0为Undefined、1为Byte、2为Int等；
- VALUE=value：设置固定值；
- /BOOLEAN：设置一个布尔型数组。
- INCREMENT：增加量；
- SIZE：【函数】维度、列、行、类型、个数
- TYPENAME：
;通过数字，获取类型
IDL> arr=make_array(1,1,type=5)
IDL> typename(arr)
DOUBLE - WHERE：
View CodeIDL> arr=indgen(5) IDL> arr 0 1 2 3 4 IDL> where(arr eq 2) 2 IDL> where(arr gt 2) 3 4 IDL> arr[where(arr gt 2)] 3 4
- REFORM：调整数组的维度。The REFORM function changes the dimensions of an array without changing the total number of elements.
- REBIN：
- CONGRID：重采样，INTERP抽样采用线性内插法；CUBIC采用卷积内插法 。
- REVERSE：1，行反转，2，列反转。
字符串反转：string(reverse(byte(str)))
数组对折反转：reverse(reverse(array), 2)，第一个是行反转，然后是列反转 - ROTATE：旋转
- TV Procedure：
- ROT：任意角度旋转
- SORT：排序，返回的是排序后的下标
- UNIQ：相邻的唯一值，下标
b = array[UNIQ(array, SORT(array))] - --<< Math - Miscellaneous Routines >>--
- --<< Math - Transcendental Routines >>--
- MAX：最大值
- MIN：最小值
- TOTAL：总和
- PRODUCT：总乘积
- FACTORIAL：阶乘
- MEAN：平均值
- ALOG：自然对数
- ALOG10：以10为底的对数
- EXP：e的指数幂
- SQRT：平方根
- ^：幂，2^2=4, 2^0.5=1.414等
- DIALOG_MESSAGE：消息框
【函数】返回值为点击的按钮，可能是 “Yes”, “No”, “OK”, and “Cancel”。
语法：Result = DIALOG_MESSAGE( Message_Text [, /CANCEL] [, /CENTER] [, /DEFAULT_CANCEL | , /DEFAULT_NO] [, DIALOG_PARENT=widget_id] [, DISPLAY_NAME=string] [, /ERROR | , /INFORMATION | , /QUESTION] [, RESOURCE_NAME=string] [, TITLE=string] ) - DIALOG_PICKFILE：文件选择
【函数】当未指定 DIRECTORY 关键字的时候，返回值为所选文件的完整路径或者多个路径的数组，没指定文件则返回空字符串；当指定 DIRECTORY 关键字的时候，返回值为所选文件夹的路径数组。
语法：Result = DIALOG_PICKFILE( [, DEFAULT_EXTENSION=string] [, /DIRECTORY] [, DIALOG_PARENT=widget_id] [, DISPLAY_NAME=string] [, FILE=string] [, FILTER=string/string array] [, /FIX_FILTER] [, GET_PATH=variable] [, GROUP=widget_id] [, /MULTIPLE_FILES] [, /MUST_EXIST] [, /OVERWRITE_PROMPT] [, PATH=string] [, /READ | , /WRITE] [, RESOURCE_NAME=string] [, TITLE=string] )
说明：DEFAULT_EXTENSION 自动增加扩展名；
DIRECTORY 选择文件夹；
FILE 可以使用通配符进行筛选（FILE = 'sa*'）；
FILTER 扩展名设置（FILTER = ['*.jpg', '*.tif', '*.png']）；
MULTIPLE_FILES 可以选择多个文件；
PATH 设置初始进去的路径，不指定的话就进到当前的工作空间；
READ 标题为 “Select File to Read”。
WRITE 标题为 “Select File to Write”。 - 特殊字符：
- 字符串相关
- STRING：返回字符串。
- STRCMP：比较字符串，一样返回1，不一样返回0，参数包括比较前几个字母和是否大小写敏感。
- STRCOMPRESS：将字符串中的空格和Tab等压缩成一个空格，参数包括删除所有空格。
- STRJOIN：将字符串数组合并成一个字符串，用什么符号进行连接。
- STRLEN：返回字符串的长度。
- STRPOS：字符串中字符位置查找，返回数值。/reverse_search从后面开始搜索。
- STRMID：字符串截取，参数有开始字母的位置，以及截取长度。不写长度就是到最后。
- STRSPLIT：拆分，用什么符号进行拆分。
- STRTRIM：删除前后空格（2）。
- strtrim(a)：去掉后面的空格
- strtrim(a, 1)：去掉前面的空格
- strtrim(a, 2)：去掉前后的空格
- STRUPCASE：字符串大写
- STRLOWCASE：字符串小写
- 命名结构体和匿名结构体
View CodePRO TEST_STURCTURE ;匿名结构体 s1 = {a:1, b:INDGEN(5), c:'hello'} HELP, s1 ;or s1 = CREATE_STRUCT('a',1, 'b',INDGEN(5), 'c','hello') HELP, s1 ;命名结构体 s2 = {s2name, a:1, b:INDGEN(5), c:'hello'} HELP, s2 ;or s2 = CREATE_STRUCT(name = 's2name' ,'a',1, 'b',INDGEN(5), 'c','hello') HELP, s2 ;获取结构体信息 PRINT, N_TAGS(s1) PRINT, TAG_NAMES(s1) ;获取结构体成员 PRINT, s1.C PRINT, s1.(2) ;动态扩展结构体 s11 = create_struct(s1, 'd', ptr_new('idl')) help, s11 ;结构体继承 s22 = {s22name, inherits s2name, d:ptr_new('idl')} help, s22 END
- CREATE_STRUCT：创建结构体
View CodeIDL> a={a:1,b:2} IDL> a=CREATE_STRUCT(a,'c',3) IDL> a { A: 1, B: 2, C: 3 } - N_TAGS：返回结构体中成员个数。
- TAG_NAMES：返回结构体成员的名字。
- PTR_NEW：创建指针，关键字/no_copy。
- PTR_VALID
- PTR_FREE
View CodePRO TEST_PTR data = INDGEN(5,5) ptr1 = PTR_NEW(data) HELP, data HELP, ptr1 HELP, *ptr1 ptr2 = PTR_NEW(data, /no_copy) HELP, data PRINT, PTR_VALID(ptr2) PTR_FREE, ptr2 PRINT, PTR_VALID(ptr2) END
- LIST：链表，访问用中括号[]。
链表方法：Add、Count、IsEmpty、Remove、Reverse、ToArray、Where等。 - HASH：哈希表，访问用中括号[]。
- OBJ_DESTROY：对象销毁
- FOR：循环
语法：
FOR variable = init, limit [, Increment] DO statement
or
FOR variable = init, limit [, Increment] DO BEGIN
statements
ENDFOR
View CodePRO TEST_FOR FOR i=0,3 DO PRINT,i*2 FOR i=0,5 DO BEGIN PRINT,i ENDFOR ; FOR i=10,1,-2 DO BEGIN PRINT,i ENDFOR END
- CONTINUE：
- BREAK：
- IF...THEN...ELSE：选择语句
语法：
IF expression THEN statement [ ELSE statement ]
or
IF expression THEN BEGIN
statements
ENDIF
or
IF expression THEN BEGIN
statements
ENDIF ELSE BEGIN
statements
ENDELSE
View CodePRO TEST_IF,num,div IF((num MOD 2) EQ 0) THEN BEGIN tmp = DIALOG_MESSAGE(STRING(num)+' 是偶数！') ENDIF IF((num MOD div) EQ 0) THEN BEGIN tmp = DIALOG_MESSAGE(STRING(num)+'能够被'+STRING(div)+'整除！') ENDIF ELSE BEGIN tmp = DIALOG_MESSAGE(STRING(num)+'不能够被'+STRING(div)+'整除！') ENDELSE IF 0 THEN BEGIN ENDIF ELSE IF 0 THEN BEGIN ENDIF ELSE IF 1 THEN BEGIN PRINT,'end' ENDIF END
-
View Code
pro alex_if a = 122 if (a mod 3 eq 0) then begin print, '0' endif else begin if (a mod 3 eq 1) then print, '1' else print, '2' endelse end
- CASE：只显示一条
语法：
CASE expression OF
expression: statement(s)
...
expression: statement(s)
[ ELSE: statement(s) ]
ENDCASE
View CodePRO TEST_CASE ; index = 0 READ, index CASE index OF 0: PLOT,SIN(FINDGEN(100)*0.25) 1: SURFACE,DIST(32) 2: BEGIN ERASE image=DIST(400) TVSCL,image END ELSE: PRINT,index ENDCASE END
- SWITCH：下面的全部都显示
语法：
SWITCH expression OF
expression: statement
...
expression: statement
ELSE: statement
ENDSWITCH
View CodePRO TEST_SWITH x=2 SWITCH x OF 1: PRINT,'one' 2: PRINT,'two' 3: PRINT,'three' 4: PRINT, 'four' ENDSWITCH PRINT,'end' END
- REPEAT：
- FOREACH：
语法：
FOREACH Element, Variable [, Index] DO Statement
or
FOREACH Element, Variable [, Index] DO BEGIN
statements
ENDFOREACH
View CodePRO Test_Foreach array = [1, 3, 5, 7, 9] FOREACH element, array DO PRINT, 'Value = ', element PRINT, '**********************' list = LIST(77.97, 'Galactic', [2, 7, 1, 8, 2]) FOREACH element, list DO BEGIN PRINT, 'Value = ', element ENDFOREACH END
- WHILE...DO：循环
语法：
WHILE expression DO statement
or
WHILE expression DO BEGIN
statements
ENDWHILE
- PRO：过程，Procedure，无返回值，位置参数和关键字参数。
View CodePRO test_pro a = 1 PRINT,a HELP,a END
- FUNCTION：函数，有返回值
参考：IDL中的关键字参数（keywords parameter） - N_PARAMS：The N_PARAMS function returns the number of parameters used in calling an IDL procedure or function.
【函数】返回非关键字参数的个数（即位置参数的个数）。
语法：Result = N_PARAMS()
View CodePRO test_parameters, param1,param2 HELP,param1,param2 PRINT,N_PARAMS() END - N_ELEMENTS：The N_ELEMENTS function returns the number of elements contained in an expression or variable.
【函数】返回一个表达式或变量中包含的元素数。
语法：Result = N_ELEMENTS(Expression) - KEYWORD_SET：The KEYWORD_SET function returns a byte value based on the value of the specified expression.
- PLOT：The PLOT function draws a line plot of vector arguments.
- CATCH：错误捕捉。
View CodePRO CATCH_EXAMPLE A = FLTARR(10) CATCH, Error_status IF Error_status NE 0 THEN BEGIN PRINT, 'Error index: ', Error_status PRINT, 'Error message: ', !ERROR_STATE.MSG A=FLTARR(12) CATCH, /CANCEL ENDIF A[11]=12 HELP, A END
- TEMPORARY：为变量不需要增加额外的空间。类似于!NULL。
View CodeIDL> u eq !null 1 IDL> u=2 IDL> u eq !null 0 IDL> temporary(u) 2 IDL> u eq !null 1
- PRINT：PRINT performs output to the standard output stream.
- SYSTIME：The SYSTIME function returns the current time as either a date/time string.
参考：IDL中的日期和时间函数
【函数】返回指定的时间形式。
语法：
Result = SYSTIME( [0 [, ElapsedSeconds]] [, /UTC] )
or
Result = SYSTIME( 1 | /SECONDS )
or
Result = SYSTIME( /JULIAN [, /UTC] )
View Code;+ ;:Description: ; Describe the procedure. ; ; Author: DYQ 2009-2-3; ; ;- PRO TEST_FORMAT ;IDL的format语法结构如下： ;[N]FC[+][-][width] ; ;符号描述: ;N ----- 代表格式控制的重复次数，默认是1 ;FC ---- 即format codes的简写，格式控制代码 ;+ ----- 给正数加上前缀 ;- ----- 控制输出时对齐方向 ;Width - 输出字符的宽度 COMPILE_OPT idl2 ; PRINT, FORMAT = '(A6)', '123456789' PRINT, FORMAT = '(I2,$)', INDGEN(6) ;X是偏移字符数，T是绝对字符数位置 PRINT, FORMAT = '("First", 20X, "Last", T10, "Middle")' PRINT, FORMAT = '("First", 20X, "Last", T4, "Middle")' ; PRINT, FORMAT = '("First", 5X, "Last", TL2, "Middle")' ; PRINT, SYSTIME(/JULIAN) ;儒略日 PRINT, FORMAT='(C())', SYSTIME(/JULIAN) PRINT, FORMAT='(C(CMOI,"/",CDI))',SYSTIME(/JULIAN) PRINT, FORMAT='(C(CHI2.2,":",CMI2.2,":",CSF05.2))',SYSTIME(/JULIAN) ; PRINT, FORMAT='(%"I have %d monkeys, %s,", " and ", I0, " parrots.")', 10, 'Scott', 5 PRINT, FORMAT='(%"I have \xb1%d monkeys \\")', 5 ; PRINT,'进制转换' PRINT,'0F'X ; 十六进制转十进制 PRINT,"17 ; 八进制转十进制 PRINT, 119, format='(B)';十进制转二进制的 PRINT, 119, format='(O)';十进制转到八进制 PRINT, 119, format='(Z)';十进制转到十六进制 END
View CodeIDL> PRINT, SYSTIME(/JULIAN) ;儒略日 2457255.0 IDL> PRINT, FORMAT='(C())', SYSTIME(/JULIAN) Thu Aug 20 11:15:33 2015 IDL> PRINT, FORMAT='(C(CMOI,"/",CDI))',SYSTIME(/JULIAN)【Y/MO/D/H/M/S】 8/20 IDL> PRINT, FORMAT='(C(CHI2.2,":",CMI2.2,":",CSF05.2))',SYSTIME(/JULIAN) 11:15:50.00
- TIC：开始时的系统时间。
- TOC：结束时的系统时间，并计算两者时间差。
- Format Codes：Format codes specify either how data should be transferred or how input/output is handled.
- READ：格式化变量输入。
语法：READ, [Prompt,] Var1, ..., Varn - READF：READF requires a file unit to be explicitly specified.
语法：READF, [Prompt,] Unit, Var1, ..., Varn - READS：格式化的从字符串读入。
语法：READS, Input, Var1, ..., Varn [, AM_PM=[string, string]] [, DAYS_OF_WEEK=string_array{7 names}] [, FORMAT=value] [, MONTHS=string_array{12 names}]
View CodeIDL> str='abc100def' IDL> a='' IDL> b=0 IDL> c='' IDL> reads,str,a,b,c,format='(A3,I3,A3)' IDL> print,a,b,c abc 100def IDL> help,a,b,c A STRING = 'abc' B INT = 100 C STRING = 'def'
-
View Code
IDL> tmp = ' 2 4 4 ' IDL> row = 0 IDL> columns = 0 IDL> type = 0 IDL> reads, tmp, row, columns, type IDL> row 2 IDL> columns 4 IDL> type 4 IDL> str=' IDL> str='' IDL> reads, tmp,row IDL> row 2 IDL> reads, tmp, str IDL> str 2 4 4 IDL> reads, tmp, type IDL> type 2
- READU：读取二进制文件
语法：READU, Unit, Var1, ..., Varn [, TRANSFER_COUNT=variable] - OPENR/OPENU/OPENW：【WIDTH/APPEND】打开读（已存在的文件）、打开更新（已存在文件）、打开写（新建文件，若已经存在，则删除原内容）
语法：OPENR, Unit, File
语法：OPENW, Unit, File
语法：OPENU, Unit, File
Keywords: [, /APPEND | , /COMPRESS] [, BUFSIZE={0 | 1 | value>512}] [, /DELETE] [, ERROR=variable] [, /F77_UNFORMATTED] [, /GET_LUN] [, /MORE] [, /NOEXPAND_PATH] [, /STDIO] [, /SWAP_ENDIAN] [, /SWAP_IF_BIG_ENDIAN] [, /SWAP_IF_LITTLE_ENDIAN] [, /VAX_FLOAT] [, WIDTH=value] [, /XDR]
View Codepro alex_openw file='D:\idl1.txt' str=FINDGEN(4,3) openw, lun, file, /get_lun printf, lun, str, format='(4F-)' free_lun,lun end
View CodeIDL> file='D:\idl.txt' IDL> openw,lun,file,/get_lun IDL> lun 100 IDL> printf,lun,arr IDL> free_lun,lun
- PRINT：格式化输出。
语法：PRINT [, Expression1, ..., Expressionn] - PRINTF：PRINTF requires a file unit to be explicitly specified.（写入文件中）
语法：PRINTF [, Unit, Expression1, ..., Expressionn]
Keywords: [, AM_PM=[string, string]] [, DAYS_OF_WEEK=string_array{7 names}] [, FORMAT=value] [, /IMPLIED_PRINT] [, MONTHS=string_array{12 names}] [, /STDIO_NON_FINITE] - WRITEU：写入二进制文件。
语法：WRITEU, Unit, Expr1 ..., Exprn [, TRANSFER_COUNT=variable] - FREE_LUN：The FREE_LUN procedure deallocates previously-allocated file units.
释放一个逻辑设备号并关闭文件。
语法：FREE_LUN [, Unit1, ..., Unitn] [, EXIT_STATUS=variable] [, /FORCE] - SKIP_LUN：The SKIP_LUN procedure reads data in an open file and moves the file pointer.
移动文件指针来读取文件。
语法：SKIP_LUN, FromUnit, [, Num] [, /EOF] [, /LINES] [, /TRANSFER_COUNT=variable] - POINT_LUN：The POINT_LUN procedure sets or obtains the current position of the file pointer for the specified file.
设置或者获取指定文件的文件指针位置。
语法：POINT_LUN, Unit, Position - FILE_LINES：The FILE_LINES function reports the number of lines of text contained within the specified file or files.
【函数】返回文本文件的行数。
语法：Result = FILE_LINES(Path [, /COMPRESS] [, /NOEXPAND_PATH] ) - FILE_DIRNAME：The FILE_DIRNAME function returns the dirname of a file path.
【函数】返回文件路径所在的文件夹路径。
语法：Result = FILE_DIRNAME(Path [, /MARK_DIRECTORY]) - ROUTINE_FILEPATH：The ROUTINE_FILEPATH function returns the full path to a currently-compiled procedure or function.
【函数】返回当前编译过程或函数的完整路径。
语法：Result = ROUTINE_FILEPATH( [Routine] [, /EITHER] [, /IS_FUNCTION] ) - FILEPATH：The FILEPATH function returns the fully-qualified path to a file contained in the IDL distribution.
- PATH_SEP：The PATH_SEP function returns the proper file path segment separator character for the current operating system.
【函数】返回当前系统路径的分割符号。
语法：Result = PATH_SEP( [, /PARENT_DIRECTORY] [, /SEARCH_PATH] ) - EOF：The EOF function tests the specified file unit for the end-of-file condition.
【函数】检测是否到文件末。到达文件的结尾返回1，没到达返回0.
语法：Result = EOF(Unit)
View Code - While循环阅读文本文件内容asciiFile = FILE_DIRNAME(ROUTINE_FILEPATH('alex_while_readf')) + $ '\data\ascii.txt' ;依次读取 PRINT, '依次读取--------------------------------' OPENR,lun,asciifile,/get_lun IF lun EQ -1 THEN RETURN; tmp = '' WHILE(~EOF(lun)) DO BEGIN READF,lun,tmp PRINT,tmp ENDWHILE ; FREE_LUN,lun
- CLOSE：The CLOSE procedure closes the file units specified as arguments.
关闭一个文件。 - FSTAT：The FSTAT function returns status information about a specified file unit.
返回一个已打开文件的信息。 - ASCII_TEMPLATE：The ASCII_TEMPLATE function presents a graphical user interface (GUI) which generates a template defining an ASCII file format.
- QUERY_BMP：QUERY_BMP is a method of obtaining information about a BMP image file without having to read the file.
【函数】获取BMP图片的信息。读取成功返回1，读取失败返回0.
语法：Result = QUERY_BMP( Filename [, Info] ) - READ_BMP：The READ_BMP function reads a Microsoft Windows Version 3 device independent bitmap file (.BMP) and returns the image.
【函数】读取BMP图片
语法：Result = READ_BMP( Filename, [, R, G, B] [, Ihdr] [, /RGB] ) - WRITE_JPEG：写入JPEG格式图片。（TRUE的值通过3那个值所处位置来确定）
语法：WRITE_JPEG [, Filename], Image [, /ORDER] [, /PROGRESSIVE] [, QUALITY=value{0 to 100}] [, TRUE={1 | 2 | 3}] [, UNIT=lun] - WRITE_TIFF：写入TIFF格式图片。
语法：WRITE_TIFF, Filename[, Image] [, /APPEND] [, /BIGTIFF] [, BITS_PER_SAMPLE={1 | 4 | 8}] [, RED, GREEN, BLUE=value] [, /CMYK] [, COMPRESSION={0 | 1 | 2 | 3}] [, DESCRIPTION=string] [, DOCUMENT_NAME=string] [, DOT_RANGE=intarray] [, GEOTIFF=structure] [, /COMPLEX | , /DCOMPLEX | , /DOUBLE | , /L64 | , /LONG | , /SHORT | , /FLOAT] [, ICC_PROFILE=bytearray] [, ORIENTATION=value] [, PHOTOSHOP=array] [, PLANARCONFIG={1 | 2}] [, /SIGNED] [, UNITS={1 | 2 | 3}] [, /VERBOSE] [, XPOSITION=units] [, XRESOL=pixels/inch] [, YPOSITION=units] [, YRESOL=pixels/inch] - ：
- ：
- ：
- ：
- !NULL：未定义。
- !ERROR_STATE：!EXCEPT、!MOUSE、!WARN。
- ：
- ：
- ：
- CD：The CD procedure is used to set and/or change the current working directory.
修改当前的工作空间路径。
语法：CD [, Directory] [, CURRENT=variable] - FILE_SEARCH：The FILE_SEARCH function returns a string array containing the names of all files matching the input path specification.
【函数】对文件名进行特定的查找。返回字符串数组。
语法：
Result = FILE_SEARCH(Path_Specification)
or for recursive searching,
Result = FILE_SEARCH(Dir_Specification, Recur_Pattern)
Keywords: [, COUNT=variable ] [, /EXPAND_ENVIRONMENT ] [, /EXPAND_TILDE ] [, /FOLD_CASE ] [, /FULLY_QUALIFY_PATH ] [, /ISSUE_ACCESS_ERROR ] [, /MARK_DIRECTORY ] [, /MATCH_ALL_INITIAL_DOT | /MATCH_INITIAL_DOT ] [, /NOSORT ] [, /QUOTE ] [, /TEST_DIRECTORY ] [, /TEST_EXECUTABLE ] [, /TEST_READ ] [, /TEST_REGULAR ] [, /TEST_WRITE ] [, /TEST_ZERO_LENGTH ] [, /WINDOWS_SHORT_NAMES ]
- FILE_COPY：The FILE_COPY procedure copies files, or directories of files, to a new location.
语法：FILE_COPY, SourcePath, DestPath [, /ALLOW_SAME] [, /NOEXPAND_PATH] [, /OVERWRITE] [, /RECURSIVE] [, /REQUIRE_DIRECTORY] [, /VERBOSE]
说明：SourcePath 想要复制的文件夹或文件的路径
DestPath 目的地文件夹
OVERWRITE 覆盖文件 - FILE_DELETE：The FILE_DELETE procedure deletes a file or empty directory.
语法：FILE_DELETE, File1[,... Filen] [, /ALLOW_NONEXISTENT] [, /NOEXPAND_PATH] [, /QUIET] [, /RECURSIVE] [, /RECYCLE] [, /VERBOSE]
说明：RECURSIVE 默认情况下只能删除空文件夹，设置此参数能够删除非空文件夹
RECYCLE 默认情况下永久删除，设置此参数可以将删除的文件放在回收站里面 - FILE_MOVE：The FILE_MOVE procedure renames files and directories, effectively moving them to a new location.
语法：FILE_MOVE, SourcePath, DestPath [, /ALLOW_SAME] [, /NOEXPAND_PATH] [, /OVERWRITE] [, /REQUIRE_DIRECTORY] [, /VERBOSE] - FILE_MKDIR：The FILE_MKDIR procedure creates a new directory, or directories, with the default access permissions for the current process.
语法：FILE_MKDIR, File1 [,... Filen] [, /NOEXPAND_PATH] - FILE_TEST：The FILE_TEST function checks files for existence and other attributes without having to first open the file.
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- TV：
语法：
TV, Image [, Position] [, /CENTIMETERS | , /INCHES] [, /ORDER] [, TRUE={1 | 2 | 3}] [, /WORDS] [, XSIZE=value] [, YSIZE=value]
or
TV, Image [, X, Y [, Channel]] [, /CENTIMETERS | , /INCHES] [, /ORDER] [, TRUE={1 | 2 | 3}] [, /WORDS] [, XSIZE=value] [, YSIZE=value]
Graphics Keywords: [, ../../Resources/CHANNEL=value] [, /DATA | , /DEVICE | , /NORMAL] [, /T3D] [, Z=value] - TVSCL：
语法：
TVSCL, Image [, Position] [, /CENTIMETERS] [, /INCHES] [, /NAN] [, /ORDER] [, TOP=value] [, TRUE={1 | 2 | 3}] [, /WORDS] [, XSIZE=value] [, YSIZE=value]
or
TVSCL, Image [, X, Y [, Channel] [, /CENTIMETERS] [, /INCHES] [, /NAN] [, /ORDER] [, TOP=value] [, TRUE={1 | 2 | 3}] [, /WORDS] [, XSIZE=value] [, YSIZE=value]]
Graphics Keywords: [, CHANNEL=value] [, /DATA | , /DEVICE | , /NORMAL] [, /T3D] [, Z=value] - DIST：
【函数】发挥N列M行的数组，省略M就返回N列N行的数组。
语法：Result = DIST(N [, M]) - ：
语法：
graphic = PLOT(Y, [Format] [, Keywords=value] [, Properties=value])
graphic = PLOT(X, Y, [Format] [, Keywords=value] [, Properties=value])
graphic = PLOT(Equation, [Format] [, Keywords=value] [, Properties=value])
Keywords
Keywords are applied only during the initial creation of the graphic.
AXIS_STYLE=value
/BUFFER, /CURRENT, /DEVICE, DIMENSIONS=[width, height], LAYOUT=array, LOCATION=[x, y], MARGIN=scalar or [left, bottom, right, top], /NO_TOOLBAR, /NODATA, /OVERPLOT, /WIDGETS
Properties
Properties can be set as keywords to the function during creation, or retrieved or changed using the "." notation after creation.
ANTIALIAS, ASPECT_RATIO, AXES, BACKGROUND_COLOR, BACKGROUND_TRANSPARENCY, CLIP, COLOR, CROSSHAIR, EQN_SAMPLES, EQN_USERDATA, EQUATION, FILL_BACKGROUND, FILL_COLOR, FILL_LEVEL, FILL_TRANSPARENCY, FONT_COLOR, FONT_NAME, FONT_SIZE, FONT_STYLE, HIDE, HISTOGRAM, LINESTYLE, MAPGRID, MAPPROJECTION, MAP_PROJECTION, MAX_VALUE, MIN_VALUE, NAME, POSITION, RGB_TABLE, STAIRSTEP, SYM_COLOR, SYM_FILLED, SYM_FILL_COLOR, SYM_INCREMENT（指定横坐标步长）, SYM_OBJECT, SYM_SIZE, SYM_THICK, SYM_TRANSPARENCY, SYMBOL, THICK, TITLE, TRANSPARENCY, UVALUE, VERT_COLORS, WINDOW, WINDOW_TITLE, XRANGE, YRANGE, ZVALUE
Methods
CloseConvertCoordCopyWindowDeleteEraseGenerateCodeGetDataGetValueAtLocationMapForwardMapInverseOrderPrintRefreshRotateSaveScaleSelectSetDataTranslate - ：
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posted on 2015-08-18 15:33 McDelfino 阅读(2470) 评论(0) 编辑 收藏 举报
