(1.8)-idl軟件學(xué)習(xí)內(nèi)容

PAGE411、界面（了解各部分的功能、記住常用的操作） 41.1取屏幕坐標(biāo) 42、變量及文件的命名、定義變量 42.1變量的保存與恢復(fù) 42.2變量的銷毀 43、基本操作 43.1算術(shù)運(yùn)算 43.2數(shù)組操作 53.3字符串操作 63.4關(guān)系運(yùn)算 83.5邏輯運(yùn)算 83.6常用函數(shù) 83.7篩選與排序 84、判斷結(jié)構(gòu)、循環(huán)結(jié)構(gòu) 94.1if語(yǔ)句 94.2CASE語(yǔ)句 94.3WHILE語(yǔ)句 104.4FOR語(yǔ)句 105、文件操作（讀寫(xiě)文本文件、讀寫(xiě)二進(jìn)制文件、讀寫(xiě)word等其他文件） 105.1eex文件的讀寫(xiě) 105.2二進(jìn)制文件的寫(xiě) 115.3二進(jìn)制文件的讀 115.4文件的信息、結(jié)構(gòu)數(shù)組的個(gè)數(shù) 115.5寫(xiě)文本文件 115.6測(cè)試文件是否存在 115.7讀文本文件的一行 125.7讀文本文件的多行 126、圖像操作 136.1圖像信息的查詢 146.2圖像信息的讀取 156.3圖像信息的寫(xiě)入 166.4圖像縮放 176.5圖像移動(dòng) 196.6直接圖形系統(tǒng)圖像顯示 196.7對(duì)象圖形系統(tǒng)圖像顯示 217界面設(shè)計(jì) 227.1建菜單 227.2xmanager 397.3右鍵菜單 407.4右鍵菜單 408程序發(fā)布 419類 419.1對(duì)象的建立與銷毀 419.2類的建立 419.3類方法建立 419.4創(chuàng)建窗口對(duì)象 429.5創(chuàng)建視圖對(duì)象 429.6創(chuàng)建模式對(duì)象 429.12對(duì)象銷毀 4210有用的操作 4210.1Alt+?的妙用 4210.2Keyword_set（）函數(shù) 4310.3兩個(gè)比較特殊的關(guān)鍵字 4310.4IDL語(yǔ)言特點(diǎn) 4310.5定義程序根目錄 4311對(duì)話框 4312程序運(yùn)行時(shí)間測(cè)試 4413鼠標(biāo)事件 4413.1鼠標(biāo)按鍵的檢測(cè) 4413.2虛擬跟蹤球 4513.3 數(shù)據(jù)獲取DATAPICKING 4613.4選取SELECTION 4813.5 燈光LIGHT 4913.6曲面SURFACE 5013.7圖例LEGEND 5113.7輪廓線CONTOUR 5213.8坐標(biāo)軸AXIS 5213.9繪圖符號(hào)IDLgrSYMBOL 5413.10線IDLgrPLOT 5513.11折線PLOYLINE 5713.12填充模式PATTERN 5713.13多邊形POLYGON 5813.14字體FONT 5913.15文本TEXT 6013.16對(duì)象數(shù)組 61附錄A 組件的事件結(jié)構(gòu) 61一. 基本組件的事件結(jié)構(gòu) 611.base組件 612． 繪圖組件 613． 下拉式列表組件 624． 標(biāo)簽組件 625． 列表組件 626． 滑動(dòng)條組件 627． 表單組件 628. 文本組件 63二. 復(fù)合組件的事件結(jié)構(gòu) 641. CW_Animate 642. CW_Arcball 643. CW_BGroup 644. CW_Clr_Index 645. CW_Color_Sel 646. CW_DefROI 647. CW_Field 648. CW_Form 659. CW_Flisder 6510. CW_Orient 6511. CW_PDMenu 6512. CW_RGBSlider 6513. CW_Zoom 65三. 組件程序的事件結(jié)構(gòu) 65 Xcolors 65四. 其他組件的事件結(jié)構(gòu) 651. 鍵盤(pán)焦點(diǎn)事件 662. 組件退出請(qǐng)求事件 663. 組建計(jì)時(shí)器事件 664. 組件跟蹤事件 66

idl軟件學(xué)習(xí)內(nèi)容1、界面（了解各部分的功能、記住常用的操作）1.1取屏幕坐標(biāo)Device,Get_Screen_Size=screenSize2、變量及文件的命名、定義變量2.1變量的保存與恢復(fù)RESTORE,'D:\EEXLT\SYSTEM\EEXLT_cur.sav'SAVE,CURDIR,CURFNA,FILENAME='D:\EEXLT\SYSTEM\EEXLT_cur.SAV'RESTORE,'D:\EEXLT\SYSTEM\EEXLT_INDEX.sav'RESTORE,'D:\EEXLT\SYSTEM\EEXLT_PCF.SAV'RESTORE,'D:\EEXLT\SYSTEM\EEXLT_WORK.SAV'SAVE,CURWORK,WORKATT,FILENAME='D:\EEXLT\SYSTEM\EEXLT_WORK.SAV'2.2變量的銷毀DELVAR,DEBUG3、基本操作3.1算術(shù)運(yùn)算3.2數(shù)組操作3.2.1數(shù)組的復(fù)制ELE200=REPLICATE(px32,POINTII)3.2.2結(jié)構(gòu)數(shù)組的建立jbxx={dgs:dgs,zdx:zdxz,zxx:zxxz,zdy:zdyz,zxy:zxyz,$zdz:zdzz,zxz:zxzz,cs:znum,ls:xnum,hs:ynum,$xfbl:xfbl,yfbl:yfbl,zfbl:zfbl}3.2.3測(cè)試結(jié)構(gòu)數(shù)組的N_ELEMENTS(pcsave)3.2.4結(jié)構(gòu)數(shù)組3.2.5測(cè)試結(jié)構(gòu)數(shù)組的成員StruVarSum=N_ELEMENTS(StruVar)FIELDNA=TAG_NAMES(StruVar)FIELDNASum=(SIZE(FIELDNA))(1)3.2.5將數(shù)字變?yōu)樽址鸅TZFC=BTZFC+self->SHUORZF(StruVar(MYII).(MYJJ))ELE200=DBLARR(NUM,POINTII)FIX(MYDBL)3.3字符串操作3.3.1去前后空格STRTRIM(STRING(INTX),2)Result1(*)=oFop->LONGSTRING(ResultData(0,*),3)curfile=oFop->Filenamesplit(srwjm)3.3.2FNAME0=pcsave(0).fname+'02BLOCKEEX\'3.3.3IFSTRCMP(NAMEII,EEXFILE(FJJ).fname)EQ1THENBEGINFILEYN=FJJENDIF3.3.4TITLECODE(myii).CODE=STRMID(ALINE,MY(0),MY(1)-my(0)-1)my2=STRSPLIT(ALINE(II)+',',',',count=N_column)3.3.5STRLEN(MYSTR)-1)3.3.6FIND_POS=STRPOS(ALINE(II),',')3.3.7FNAME4=STRARR(4)3.3.8函數(shù)名函數(shù)描述STRCMP(str1,str2,N,/FOLD_CASE)對(duì)兩個(gè)字符串進(jìn)行比較,如果N存在只對(duì)前N個(gè)進(jìn)行比較,/FOLD_CASE表示模糊比較STRMID(Str1,po1,Len,REVERSE_OFFSET)從字符串po1開(kāi)始取出Len個(gè)字符。字符串的第一個(gè)字符的位置為0STRUPCASE（）將所有的小寫(xiě)字母改寫(xiě)成大寫(xiě)字母STRLOWCASE（）將所有的大寫(xiě)字母改寫(xiě)成小寫(xiě)字母STRLEN（）字符串的長(zhǎng)度STRTRIM（str,Flag）移去字符串中的空格Flag：0（移去左邊空格），1（移去右邊空格），2（移去兩邊的空格）STRPOS(Exp_Str1,Sea_Str2,Pos,REVERSE_OFFSET,/REVERSE_SEARCH])從一個(gè)字符串中查找與另外一個(gè)字符串完全匹配的起始點(diǎn)所在的位置Pos查找點(diǎn)的起始位置，默認(rèn)值為0，1（如果指定/REVERSE_SEARCH]）指定時(shí)，則表示從開(kāi)始的Pos起，或者從末尾開(kāi)始的Pos其（如果指定REVERSE_OFFSET）STRPUT,Des_Var_str,Sou_str,Pos將Sou_str字符串插入到變量Des_Var_str之中POS插入點(diǎn)的默認(rèn)值為0Sou_str不為字符串，則按默認(rèn)格式自動(dòng)轉(zhuǎn)化從POS處開(kāi)始插入Des_Var_str，如果插入值的位置超過(guò)了Des_Var的最大長(zhǎng)度，則自然截?cái)?.4關(guān)系運(yùn)算3.5邏輯運(yùn)算3.6常用函數(shù)BLOCKNUM=(SIZE(PCSAVE))(1)PCSAVE(0).X0=MIN(PCSAVE(1:BLOCKNUM).X0)PCSAVE(0).POINTSUM=TOTAL(PCSAVE(1:BLOCKNUM).POINTSUM)px=sort(jl)ELE200=REPLICATE(px32,POINTII)READTIMES=FLOOR(POINTSUM/POINTII)MY=WHERE(DIIEQDELWJXH)EEXFILE(STATION).IMPTIME=SYSTIME()FNAME4=STRARR(4)dgs4=LONARR(4)zdxz=MAX(datax(*).X,MIN=zxxz)FITERR=MEAN(ABS(MYDIST))CSPCZ=INVERT(TRANSPOSE(XSB)##XSB)##TRANSPOSE(XSB)##CSXRADIUS=SQRT(ABS(CENTERX))sttoball=FLTARR(10000000)INTDBL=STRLEN(STRTRIM(STRING(FIX(MYDBL)),2))outdata=STRARR(1,dianshu)outdat2=DBLARR(3,dianshu)FIND_POS=STRPOS(ALINE(II),',')3.7篩選與排序Result=WHERE(Array_Expression[,

Count][,

COMPLEMENT=variable][,

/L64][,

NCOMPLEMENT=variable])4、判斷結(jié)構(gòu)、循環(huán)結(jié)構(gòu)4.1if語(yǔ)句IFFILEYNEQ-1THENBEGINENDIFELSEBEGINENDELSE4.2CASE語(yǔ)句CASE1OF(detxLE0)*(detyLE0):BEGINdgs4(0)=dgs4(0)+1IFdgs4(0)EQ1THENBEGINOPENW,1,FNAME4(0)WRITEU,1,element(ii)CLOSE,1OPENU,1,FNAME4(0),/APPENDENDIFELSEBEGINWRITEU,1,element(ii)ENDELSEEND;case1ENDCASE;case1ofCASEChaOrEngOF0:BTZFC=BTZFC+TITLECODE(MY).COLUMCHN+','1:BTZFC=BTZFC+TITLECODE(MY).COLUMENG+','ENDCASE4.3WHILE語(yǔ)句ygds=1LWHILEygdsLEquxhDOBEGINquhbm(2,ygds)=quhbm(3,ygds-1)+1quhbm(3,ygds)=quhbm(2,ygds)+quhbm(1,ygds)-1ygds++ENDWHILE4.4FOR語(yǔ)句FORMYBAL=0,BALLSUM-1DOBEGINPOINTN=MYBAL+1MYSORT=WHERE(LS_DIST.STARTPOIEQPOINTN)DIST00=LS_DIST(MYSORT)DIST01=ABS(LS_DIST.SDISTANC-DIST00(0).SDISTANC)DIST02=ABS(LS_DIST.SDISTANC-DIST00(1).SDISTANC)MYSOR1=WHERE(DIST01LT0.2)MYSOR2=WHERE(DIST02LT0.2)IF(MYSOR1(0)EQ-1)*(MYSOR2(0)EQ-1)THEN$BALLALL(MYBAL).TOF=0ENDFOR5、文件操作（讀寫(xiě)文本文件、讀寫(xiě)二進(jìn)制文件、讀寫(xiě)word等其他文件）5.1eex文件的讀寫(xiě)datax=oFop->READ_EEX(NAMEJ,PSUM100=PSUM)Data=[Transpose(datax(*).X),$Transpose(datax(*).Y),$Transpose(datax(*).Z)]5.2二進(jìn)制文件的寫(xiě)OPENU,LUNA,PCSAVE(FILEYN).FNAME,/GET_LUN,/APPENDWRITEU,LUNA,BLOCKPCLOSE,LUNA&FREE_LUN,LUNA；OPENW,LUNA,BLOCK.FNAME,/GET_LUNWRITEU,LUNA,BLOCKPCLOSE,LUNA&FREE_LUN,LUNA5.3二進(jìn)制文件的讀OPENR,LUNR00,NAMEII,/GET_LUNREADU,LUNR00,ELE200CLOSE,LUNR00&FREE_LUN,LUNR005.4文件的信息、結(jié)構(gòu)數(shù)組的個(gè)數(shù)FINFO=FSTAT(LUNR00)POINTSUM=FINFO.SIZE/405.5寫(xiě)文本文件xwj=oFop->EXPORT_TXT(pcsave(MYII).fname,NUM,xshift,yshift)5.6測(cè)試文件是否存在IFFILE_TEST(pcsave(MYII).fname)EQ0THENBEGINprint,pcsave(MYII).fname+'不存在。'ENDIFELSEBEGINWJLJ=oFop->Filenamesplit(pcsave(MYII).fname)ENDELSE5.7讀文本文件的一行ChnTile=self->Read_Line('D:\EEXLT\SYSTEM\TabColumCode.txt',N_line=LSum)5.7讀文本文件的多行OPENR,LUN,SRWJM,/GET_LUNFIND_FIRST=DBLARR(N_column,N_LINE)READF,LUN,FIND_FIRSTFREE_LUN,LUN&CLOSE,LUNOPENR,LUN,'D:\EEXLT\SYSTEM\MYSTR.DAT',/GET_LUNREADF,LUN,MYSTRCLOSE,LUN&FREE_LUN,LUNMYC=self->READ_COLOR(1)NUM=self->DET_COLUMN(INPFNA)6、圖像操作paddraw=WIDGET_DRAW(ltBase,$XSIZE=self.drawX*.25,$YSIZE=self.drawY*.25,$XOFFSET=0,$YOFFSET=self.scr_ysize*0.05,$UNAME='draw2',$RETAIN=2,$/BUTTON_EVENTS,$/MOTION_EVENTS,$/wheel_events,$GRAPHICS_LEVEL=2$)widget_control,ltbase,/REALIZEwidget_control,paddraw,get_value=dispWindowPaddispView=OBJ_NEW('IDLgrView',$ZCLIP=[1000,-1000],$EYE=2000.0,$VIEWPLANE_RECT=[-0.5,-0.5,1,1],$COLOR=[0,0,0]$)DispModel=OBJ_NEW('IDLgrModel')DispHolder=OBJ_NEW('IDL_Container')6.1圖像信息的查詢Result=QUERY_IMAGE(Filename[,

Info][,

CHANNELS=variable][,

DIMENSIONS=variable][,

HAS_PALETTE=variable][,

IMAGE_INDEX=index][,

NUM_IMAGES=variable][,

PIXEL_TYPE=variable][,

SUPPORTED_READ=variable][,

SUPPORTED_WRITE=variable][,

TYPE=variable]

)6.2圖像信息的讀取Result=READ_IMAGE(Filename[,

Red,Green,Blue][,

IMAGE_INDEX=index]

)Result=DIALOG_READ_IMAGE([Filename][,

BLUE=variable][,

DIALOG_PARENT=widget_id][,

FILE=variable][,

FILTER_TYPE=string][,

/FIX_FILTER][,

GET_PATH=variable][,

GREEN=variable][,

IMAGE=variable][,

PATH=string][,

QUERY=variable][,

RED=variable][

,TITLE=string]

)6.3圖像信息的寫(xiě)入WRITE_IMAGE,Filename,Format,Data[,

Red,Green,Blue][,

/APPEND]Result=DIALOG_WRITE_IMAGE(Image[,R,G,B][,

DIALOG_PARENT=widget_id][,

FILENAME=string][,

/FIX_TYPE][,

/NOWRITE][,

OPTIONS=variable][,

PATH=string][

,TITLE=string][,

TYPE=variable][,

/WARN_EXIST])6.4圖像縮放6.4.1ZOOMZOOM[,

/CONTINUOUS][,

FACT=integer][,

/INTERP][,

/KEEP][,

/NEW_WINDOW][,

XSIZE=value][,

YSIZE=value][,

ZOOM_WINDOW=variable]6.4.2ZOOM_24ZOOM_24[,

FACT=integer][,

/RIGHT][,

XSIZE=value][,

YSIZE=value]6.4.3;Chapter09ZoomImageOPROChapter09ZoomImageObjectfile=FILEPATH('convec.dat',SUBDIRECTORY=['examples','data'])imageSize=[248,248]image=READ_BINARY(file,DATA_DIMS=imageSize)oWindow=OBJ_NEW('IDLgrWindow',RETAIN=2,$DIMENSIONS=imageSize,TITLE='GreyImage')oView=OBJ_NEW('IDLgrView',VIEWPLANE_RECT=[0.,0.,imageSize])oModel=OBJ_NEW('IDLgrModel')oImage=OBJ_NEW('IDLgrImage',image,/GREYSCALE)oModel->Add,oImageoView->Add,oModeloWindow->Draw,oViewoWindow=OBJ_NEW('IDLgrWindow',RETAIN=2,$DIMENSIONS=imageSize,TITLE='EnlargedArea')oView->SetProperty,VIEWPLANE_RECT=[0.,0.,imageSize/2]oWindow->Draw,oViewOBJ_DESTROY,oViewEND6.5圖像移動(dòng)6.6直接圖形系統(tǒng)圖像顯示6.6.1TVTV,Image[,

Position][,

/CENTIMETERS|,/INCHES][,

/ORDER][,

TRUE={1

|

2

|

3}][,

/WORDS][,

XSIZE=value][,

YSIZE=value]orTV,Image[,

X,Y[,

Channel]][,

/CENTIMETERS|,/INCHES][,

/ORDER][,

TRUE={1|2|3}][,

/WORDS][,

XSIZE=value][,

YSIZE=value]6.6.2TVTVSCL,Image[,

Position][,

/CENTIMETERS][,

/INCHES][,

/NAN][,

/ORDER][,

TOP=value][,

TRUE={1

|

2

|

3}][,

/WORDS][,

XSIZE=value][,

YSIZE=value]orTVSCL,Image[,

X,Y[,

Channel][,

/CENTIMETERS][,

/INCHES][,

/NAN][,

/ORDER][,

TOP=value][,

TRUE={1

|

2

|

3}][,

/WORDS][,

XSIZE=value][,

YSIZE=value]]6.7對(duì)象圖形系統(tǒng)圖像顯示6.7.17界面設(shè)計(jì)7.1建菜單7.1.1Result=WIDGET_BASE([Parent][,

/ALIGN_BOTTOM|,/ALIGN_CENTER|,/ALIGN_LEFT|,/ALIGN_RIGHT|,/ALIGN_TOP][,

/BASE_ALIGN_BOTTOM|,/BASE_ALIGN_CENTER|,/BASE_ALIGN_LEFT|,/BASE_ALIGN_RIGHT|,/BASE_ALIGN_TOP][,

BITMAP=value][,

COLUMN=ncols|,ROW=nrows][,

/CONTEXT_EVENTS][,

/CONTEXT_MENU][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

/EXCLUSIVE|,/NONEXCLUSIVE][,

/FLOATING][,

FRAME=width][,

FUNC_GET_VALUE=string][,

/GRID_LAYOUT][,

GROUP_LEADER=widget_id{mustspecifyformodaldialogs}][,

/KBRD_FOCUS_EVENTS][,

KILL_NOTIFY=string][,

/MAP{not

for

modal

bases}][,

/MASK][,MBAR=variable|,/MODAL][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SCROLL{notformodalbases}][,

/SENSITIVE][,

SPACE=value{ignoredifexclusiveornonexclusive}][,

TAB_MODE=value][,

TITLE=string][,

TLB_FRAME_ATTR=value{top-levelbasesonly}][,

/TLB_ICONIFY_EVENTS{top-levelbasesonly}][,

/TLB_KILL_REQUEST_EVENTS{top-levelbasesonly}][,

/TLB_MOVE_EVENTS{top-levelbasesonly}][,

/TLB_SIZE_EVENTS{top-levelbasesonly}][,

/TOOLBAR][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

XOFFSET=value][,

XPAD=value{ignoredifexclusiveornonexclusive}][,

XSIZE=value][,

X_SCROLL_SIZE=value][,

YOFFSET=value][,

YPAD=value{ignoredifexclusiveornonexclusive}][,

YSIZE=value][,

Y_SCROLL_SIZE=value])self.tlb=Widget_Base($MBAR=MenuBase,$/Column)self.tlb=Widget_Base(XOFFSET=150,$;主窗口起始點(diǎn)x方向位置YOFFSET=50,$;主窗口起始點(diǎn)y方向位置uname='top',$uvalue=self,$MBAR=MenuBase,$/TLB_MOVE_EVENTS,$/TLB_SIZE_EVENTS,$TITLE='EEXLT',$;窗口的標(biāo)題/TLB_KILL_REQUEST_EVENTS,$/Column)self->creatMainMenu,MenuBase7.1.2Result=WIDGET_BUTTON(Parent[,

ACCELERATOR=string][,

/ALIGN_CENTER|,/ALIGN_LEFT|,/ALIGN_RIGHT][,

/BITMAP][,

/CHECKED_MENU][,

/DYNAMIC_RESIZE][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

/FLAT][,

FONT=string][,

FRAME=width][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

/HELP][,

KILL_NOTIFY=string][,

/MENU][,

/NO_COPY][,

/NO_RELEASE][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

/PUSHBUTTON_EVENTS][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SENSITIVE][,

/SEPARATOR][,

TAB_MODE=value][,

TOOLTIP=string][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

VALUE=value][,

X_BITMAP_EXTRA=bits][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.47.1.57.1.6.10Result=WIDGET_DROPLIST(Parent[,

/DYNAMIC_RESIZE][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

/FLAT][,

FONT=string][,

FRAME=value][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

KILL_NOTIFY=string][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

RESOURCE_NAME=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SENSITIVE][,

TAB_MODE=value][,

TITLE=string][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

VALUE=value][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.11Result=WIDGET_LIST(Parent[,

/CONTEXT_EVENTS][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

FONT=string][,

FRAME=width][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

KILL_NOTIFY=string][,

/MULTIPLE][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

RESOURCE_NAME=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SENSITIVE][,

TAB_MODE=value][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

VALUE=value][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.12Result=WIDGET_SLIDER(Parent[,

/DRAG][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

FONT=string][,

FRAME=width][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

KILL_NOTIFY=string][,

MAXIMUM=value][,

MINIMUM=value][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

RESOURCE_NAME=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

SCROLL=units][,

/SENSITIVE][,

/SUPPRESS_VALUE][,

TAB_MODE=value][,

TITLE=string][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

VALUE=value][,

/VERTICAL][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.13Result=WIDGET_TEXT(Parent[,

/ALL_EVENTS][,

/CONTEXT_EVENTS][,

/EDITABLE][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

FONT=string][,

FRAME=width][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

IGNORE_ACCELERATORS=value][,

/KBRD_FOCUS_EVENTS][,

KILL_NOTIFY=string][,

/NO_COPY][,

/NO_NEWLINE][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

RESOURCE_NAME=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SCROLL][,

/SENSITIVE][,

TAB_MODE=value][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

VALUE=value][,

/WRAP][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.14Result=WIDGET_TREE(Parent[,

/ALIGN_BOTTOM|,

/ALIGN_CENTER|,/ALIGN_LEFT|,

/ALIGN_RIGHT|,

/ALIGN_TOP][,

BITMAP=array][,

/CONTEXT_EVENTS][,

DRAG_NOTIFY=string][,

/DRAGGABLE][,

/DROP_EVENTS][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

/EXPANDED][,

/FOLDER][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

INDEX=value][,

KILL_NOTIFY=string][,

/MASK][,

/MULTIPLE][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SENSITIVE][,

TAB_MODE=value][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

VALUE=string][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.15Result=WIDGET_TAB(Parent[,

/ALIGN_BOTTOM|,/ALIGN_CENTER|,/ALIGN_LEFT|,/ALIGN_RIGHT|,/ALIGN_TOP][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

KILL_NOTIFY=string][,

LOCATION={0

|

1

|

2

|

3}][,

MULTILINE=0

|

1

(Windows)ornumtabsperrow(Motif)][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SENSITIVE][,

TAB_MODE=value][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.16WIDGET_TABLEResult=WIDGET_TABLE(Parent[,

ALIGNMENT={0|1|2}][,

/ALL_EVENTS][,

AM_PM=[string,string]][,

BACKGROUND_COLOR=array][,

COLUMN_LABELS=string_array][,

/COLUMN_MAJOR

|

,

/ROW_MAJOR][,

COLUMN_WIDTHS=array][,

/CONTEXT_EVENTS][,

DAYS_OF_WEEK=string_array{7names}][,

/DISJOINT_SELECTION][,

/EDITABLE][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

FONT=string][,

FOREGROUND_COLOR=array][,

FORMAT=value][,

FRAME=width][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

IGNORE_ACCELERATORS=value][,

/KBRD_FOCUS_EVENTS][,

KILL_NOTIFY=string][,

MONTHS=string_array{12names}][,

/NO_COLUMN_HEADERS][,

/NO_COPY][,

/NO_HEADERS][,

/NO_ROW_HEADERS][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

/RESIZEABLE_COLUMNS][,

/RESIZEABLE_ROWS{notsupportedinWindows}][,

RESOURCE_NAME=string][,

ROW_HEIGHTS=array][,

ROW_LABELS=string_array][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SCROLL][,

/SENSITIVE][,

TAB_MODE=value][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0

|

1

|

2}][,

UVALUE=value][,

VALUE=value][,

XOFFSET=value][,

XSIZE=value][,

X_SCROLL_SIZE=width][,

YOFFSET=value][,

YSIZE=value][,

Y_SCROLL_SIZE=height])WIDGET_LABELResult=WIDGET_LABEL(Parent[,

/ALIGN_CENTER|,/ALIGN_LEFT|,/ALIGN_RIGHT][,

/DYNAMIC_RESIZE][,

FONT=string][,

FRAME=width][,

FUNC_GET_VALUE=string][,

GROUP_LEADER=widget_id][,

KILL_NOTIFY=string][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

RESOURCE_NAME=string][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SENSITIVE][,

/SUNKEN_FRAME][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0|1|2}][,

UVALUE=value][,

VALUE=value][,

XOFFSET=value][,

XSIZE=value][,

YOFFSET=value][,

YSIZE=value])7.1.17Result=WIDGET_DRAW(Parent[,

/APP_SCROLL][,

/BUTTON_EVENTS][,

CLASSNAME=string][,

/COLOR_MODEL][,

COLORS=integer][,

DRAG_NOTIFY=string][,

/DROP_EVENTS][,

EVENT_FUNC=string][,

EVENT_PRO=string][,

/EXPOSE_EVENTS][,

FRAME=width][,

FUNC_GET_VALUE=string][,

GRAPHICS_LEVEL=2][,

GROUP_LEADER=widget_id][,

IGNORE_ACCELERATORS=value][,

KEYBOARD_EVENTS={1|2}][,

KILL_NOTIFY=string][,

/MOTION_EVENTS][,

/NO_COPY][,

NOTIFY_REALIZE=string][,

PRO_SET_VALUE=string][,

RENDERER={0

|

1}][,

RESOURCE_NAME=string][,

RETAIN={0

|

1

|

2}][,

SCR_XSIZE=width][,

SCR_YSIZE=height][,

/SCROLL][,

/SENSITIVE][,

TOOLTIP=string][,

/TRACKING_EVENTS][,

UNAME=string][,

UNITS={0

|

1

|

2}][,

UVALUE=value][,

/VIEWPORT_EVENTS][,

/WHEEL_EVENTS][,

XOFFSET=value][,

XSIZE=value][,

X_SCROLL_SIZE=width][,

YOFFSET=value][,

YSIZE=value][,

Y_SCROLL_SIZE=height])7.1.18topLevelBase=WIDGET_BASE(/COLUMN)imageDraw=WIDGET_DRAW(topLevelBase,/BUTTON_EVENTS,XSIZE=imageSize[0],$YSIZE=imageSize[1],UNAME='imageDisplay')contextBase=WIDGET_BASE(topLevelBase,/CONTEXT_MENU,UNAME='drawContext')loadCTButton=WIDGET_BUTTON(contextBase,VALUE='XLOADCT',$EVENT_PRO='CDE_LoadCTEvent')7.1.17Result=TAG_NAMES(Expression[,

/STRUCTURE_NAME])7.1.18WIDGET_controluname=widget_info(event.id,/uname)7.2xmanagerxmanager,'EEXLTClass',self.tlb,$/no_block,$event_handler='EEXLTClass_Event',$cleanup='EEXLTClass_Cleanup'/no_block禁用IDL命令編輯行event_handlerGUI中有事件發(fā)生時(shí)，調(diào)用的過(guò)程cleanup刪除GUI時(shí)調(diào)用的過(guò)程7.3右鍵菜單PROChapter07BaseRightClick_event,eventcontextBase=WIDGET_INFO(event.ID,FIND_BY_UNAME='contextMenu')WIDGET_DISPLAYCONTEXTMENU,event.ID,event.X,event.Y,contextBaseENDPROChapter07BaseRightClicktopLevelBase=WIDGET_BASE(/COLUMN,XSIZE=500,YSIZE=300,/CONTEXT_EVENTS)contextBase=WIDGET_BASE(topLevelBase,/CONTEXT_MENU,UNAME='contextMenu')firstButton=WIDGET_BUTTON(contextBase,$VALUE='Selection1',EVENT_PRO='CBE_FirstEvent')secondButton=WIDGET_BUTTON(contextBase,$VALUE='Selection2',EVENT_PRO='CBE_SecondEvent')doneButton=WIDGET_BUTTON(contextBase,VALUE='Done',$/SEPARATOR,EVENT_PRO='CBE_DoneEvent')WIDGET_CONTROL,topLevelBase,/REALIZEXMANAGER,'Chapter07BaseRightClick',topLevelBaseEND7.4右鍵菜單8程序發(fā)布9類9.1對(duì)象的建立與銷毀oFop=OBJ_NEW('EEXLTFileOperate')OBJ_DESTROY,oFopoCloud=OBJ_NEW('EEXLTCloudPro')OBJ_DESTROY,oCloud9.2類的建立PROEEXLTClass__Define;oClass=obj_new('EEXLTClass')COMPILE_OPTStrictarrdefine={EEXLTClass,$INHERITSEEXLTCreat,$tlb:0L,$wToolbase:0L,$toolpos:0L,$oView:obj_new(),$oWindow:obj_new(),$}END9.3類方法建立FUNCTIONEEXLTCloudPro::SPACEINDEXSTRU,datax,xfbl,yfblsrwjm=DIALOG_PICKFILE($FILTER='*.txt',$title='SelectDATAfileofbigpointcloud:',$path=curdir,$FILE=curfna,$/MULTIPLE_FILES)9.4創(chuàng)建窗口對(duì)象Mywindow=OBJ_NEW('IDLgrWindow')9.5創(chuàng)建視圖對(duì)象PaddispView=OBJ_NEW('IDLgrView',$ZCLIP=[1000,-1000],$EYE=2000.0,$;VIEWPLANE_RECT=[-10,-10,20,20],$VIEWPLANE_RECT=[-0.5,-0.5,1,1],$COLOR=[0,0,0]$)9.6創(chuàng)建模式對(duì)象Mymodel=OBJ_NEW('IDLgrModel')9.12對(duì)象銷毀OBJ_DESTROY,MywindowOBJ_DESTROY,MyviewOBJ_DESTROY,Myfont1OBJ_DESTROY,Myfont210有用的操作10.1Alt+?的妙用Alt+?的妙用10.2Keyword_set（）函數(shù)Keyword_set（）函數(shù)與N_Elements（）函數(shù)的相同之處在于，都能檢測(cè)到有效參數(shù)被傳遞了，但是都不能檢測(cè)無(wú)效傳遞的變量（比如說(shuō)被傳遞變量沒(méi)有被定義時(shí)，則檢測(cè)不到）；不同點(diǎn)是：N_Elements（）能返回具體傳遞變量中元素的個(gè)數(shù)，而Keyword_set（）只能通過(guò)0或1的值來(lái)標(biāo)識(shí)是否被傳遞了。10.3兩個(gè)比較特殊的關(guān)鍵字IDL中有兩個(gè)比較特殊的關(guān)鍵字參數(shù)：_EXTRA：（值傳遞型）_REF_EXTRA：（地址傳遞型）10.4IDL語(yǔ)言特點(diǎn)IDL語(yǔ)言是一種完全基于矩陣運(yùn)算的語(yǔ)言，掌握和了解矩陣運(yùn)算的技巧，以及相關(guān)函數(shù)非常重要。10.5定義程序根目錄;定義程序根目錄RootDir=’D:\IDLWork\IDL3D'11對(duì)話框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])Result=DIALOG_MESSAGE(‘’)12程序運(yùn)行時(shí)間測(cè)試oSurF=obj_new('EEXLTSurvBasefunction')oSurF->timeOn,Time0=Time0self->DrawPloygon,varis,TemObject=TemObjectwidget_control,self.draw,set_Uvalue=TemObjectself->AddObject,TemObjectoSurF->timeOff,Time0OBJ_DESTROY,oSurF13鼠標(biāo)事件13.1鼠標(biāo)按鍵的檢測(cè)IF(ev.CLICKSEQ2)THENTWE_ToggleValue,ev.ID雙擊操作IF(event.typeEQ7)THENBEGIN滾輪操作13.2虛擬跟蹤球數(shù)據(jù)獲取DATAPICKINGIF(event.pressEQ1)THENbegin;;這里要轉(zhuǎn)換成為屏幕的01坐標(biāo)cor1=[event.x,event.y]-[self.drawX/2,self.drawY/2]self.Lcorne1=cor1cor1=cor1+[self.drawX/2,self.drawy/2]cor1[0]=cor1[0]/self.drawX-0.5cor1[1]=cor1[1]/self.drawY-0.5d1=cor1d2=[cor2[0],cor1[1]]d3=cor2d4=[cor1[0],cor2[1]]data=[[d1],[d2],[d3],[d4]]Opoly=OBJ_NEW('IDLgrPolygon',$COLOR=[218,16,32],$DATA=data,$THICK=1,$STYLE=1$);dataxyz[0]=(dataxyz[0]+0.5)/(self.lmn2)+self.xmindataxyz[1]=(dataxyz[1]+0.5)/(self.lmn2)+self.ymindataxyz[2]=(dataxyz[2]+0.5)/(self.lmn2)+self.zminstaX=string(dataxyz[0])staY=string(dataxyz[1])staZ=string(dataxyz[2])13.4選取SELECTION燈光LIGHToLight1=OBJ_NEW('IDLgrLight',LOCATION=[2,2,5],TYPE=2,INTENSITY=0.25)13.6曲面SURFACE13.7圖例LEGEND13.7輪廓線CONTOUR13.8坐標(biāo)軸AXIS;Chapter08APROChapter08Axisdata=FINDGEN(100)myplot=OBJ_NEW('IDLgrPlot',data)xaxis=OBJ_NEW('IDLgrAxis',0)yaxis=OBJ_NEW('IDLgrAxis',1)myplot->GetProperty,XRANGE=xr,YRANGE=yrxaxis->SetProperty,RANGE=xryaxis->SetProperty,RANGE=yrxtl=0.02*(xr[1]-xr[0])ytl=0.02*(yr[1]-yr[0])xaxis->SetProperty,TICKLEN=xtlyaxis->SetProperty,TICKLEN=ytlmymodel=OBJ_NEW('IDLgrModel')myview=OBJ_NEW('IDLgrView')mywindow=OBJ_NEW('IDLgrWindow',RETAIN=2)mymodel->Add,myplotmymodel->Add,xaxismymodel->Add,yaxismyview->Add,mymodelSET_VIEW,myview,mywindowmywindow->Draw,myviewval=''READ,val,PROMP='Press<Return>todestroyobjects.'OBJ_DESTROY,mywindowOBJ_DESTROY,myviewEND13.9繪圖符號(hào)IDLgrSYMBOL13.10線IDLgrPLOT13.11折線PLOYLINE13.12填充模式PATTERNpattern=BYTE(RANDOMN(seed,32,4)*255)myPattern=OBJ_NEW('IDLgrPattern',STYLE=