[Tcl-nap-users] Nap Memory Problem

[salah j. <s_...@ya...>]

Hi Guys
   
  I am working with NAP to do some image processing. i am using a nap function "get_gridascii" to read arc grid ASCII files. the size of images ranges from 2 MB to 100 MB and the platform that i am using is WINXP.
   
   I faced a problem such that the TCL shell give me message can not allocate memory. after calling "get_gridascii" several times.
   
  I used windows task manager utility to trace the process memory usage I find that a little a mount is freed after destroying a NAO object, I  did the same test on two PCs and i get the same result on two versions of TCL.
   
  This is how i am using  get_gridascii
   
  nap "get_gridascii('red.ASC')";
  ::NAP::16-16
   
  i used  ::NAP::16-16 in order to free the memory but the memory did not freed.
   
  also i did another test like that 
   
  nap "red=get_gridascii('red.ASC')";
   
  and i used set red "" also i used unset red to free memory but the memory did not freed.
   
  I checked this with another versions like 5.0.3 and 5.0.2  and i get the same result.
   
  finally i made this test with  4.0.1 i get a good result doing the same test ,The memory was freed  BUT I tried to open an image a bout 80 MB. the TCL shell stop responding. this image i was able to create ANO Object out of it with NAP 5.0.5 but i could not do the same with NAP 4.0.1. i did this test a gain twice an i faild to creat  NAO object.
   
  What is the cause of this problem , is it a bug . and how can i free the memory.
   
   
   
   
   
   
   
   
    
   
   
   
   
   
   
   
   
   
   
   




Best Regard
 
Eng. Salah Al Jubeh

MCP,MCAD,MCSD 



Mobile:00306947192421

 



		
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