#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!N  #!Rtrace Trace 
#!N #!N Category #!N #!N  #!Lcatdbg,dxall754 h Debugging  #!EL  #!N #!N Function #!N #!N 
Enable or disables tracing options. #!N #!N Syntax #!CForestGreen #!N #!N 
 #!F-adobe-courier-bold-r-normal--18*   #!N Trace(  #!F-adobe-times-bold-r-normal--18*   what, how #!EF ); #!EF #!N #!N 
#!EC #!N #!N Inputs #!T,1,91,276,461,646  #!F-adobe-times-medium-r-normal--14*    #!F-adobe-times-bold-r-normal--18*   #!N TAB Name TAB 
Type TAB Default TAB Description #!EF #!N TAB what TAB string 
TAB none TAB the object to be traced #!N TAB how 
TAB integer TAB 1 TAB 0: set tracing off #!N TAB 
- TAB - TAB - TAB 1: set tracing on #!N 
TAB - TAB - TAB - TAB #!EF #!N #!N Functional 
Details #!N #!N #!I0 #!N #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   what 
#!EF #!EF #!I50 #!N is (1) a keyword specifying the object 
to be traced  #!F-adobe-times-medium-i-normal--18*   or #!EF (2) a set of letters 
specifying a group of debug message classes, as used by the 
 #!F-adobe-times-bold-r-normal--18*   DXEnableDebug() #!EF library function (see IBM Visualization Data Explorer Programmer's 
Reference). #!N #!N At present, the only keyword value allowed for 
this parameter is  #!F-adobe-times-bold-r-normal--18*   "time" #!EF :  #!F-adobe-times-bold-r-normal--18*   Trace("time", 1); #!EF 
will begin the trace, and  #!F-adobe-times-bold-r-normal--18*   Trace("time", 0); #!EF will print 
a record of time use since the tracing was started. The 
output appears in the Message window. #!N If  #!F-adobe-times-bold-r-normal--18*   what #!EF 
is a string of lowercase letters other than  #!F-adobe-times-bold-r-normal--18*   time #!EF 
, the module calls the  #!F-adobe-times-bold-r-normal--18*   DXEnableDebug #!EF library function. (The 
uppercase letters A-Z and the numbers 0-9 are reserved for system 
use). #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   how #!EF #!EF #!I50 #!N 
specifies whether the trace option is activated or not. #!I0 #!N 
#!N Note: If the executive is started with the flag -timing 
on, the command Trace("time", 0) causes all module entry and exit 
times to be printed. In the VPE window, this command can 
be enabled using the Debug Tracing button in the  #!F-adobe-times-bold-r-normal--18*   Commands 
#!EF menu of the Message window (see  #!Ldebug,dxall482 h Using the Message Window  #!EL  in IBM Visualization 
Data Explorer User's Guide). #!N #!N Script Language Example #!N #!N 
In this example, the module traces the use of time by 
Isosurface. #!CForestGreen #!N #!N  #!F-adobe-courier-bold-r-normal--18*   #!N electrondensity = Import("/usr/local/dx/samples/data/watermolecule"); #!N electrondensity 
= Partition(electrondensity); #!N camera = AutoCamera(electrondensity, width=5); #!N Trace("time", 1); #!N 
isosurface = Isosurface(electrondensity, 0.3); #!N Trace("time", 0); #!N Display(isosurface, \camera); #!EF 
#!N #!N #!EC #!N #!N See Also #!N #!N  #!Lusage,dxall974 h Usage  #!EL  #!N 
#!N #!N  #!F-adobe-times-medium-i-normal--18*   Next Topic #!EF #!N #!N  #!Ltransfo,dxall967 h Transform  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   
#!N 
