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How to create a BMP file using SKILL and Virtuoso ?

BruceD

Hello All

This is my first topic here :) And i need your help for doing something a little bit tricky (to me!)

I have a layout with let's say 2 layers. (to keep things simple.) overlapping a bunch of instances.

Everytime layer1 or Layer2 is overlapping a part of the matrix , i calculate the percentage of covered area.

I assume that if there is no overlap, my value is 255.

If i have let's say 3%of coverage,  then my value will be(100%-3%)*255 = 247.

Foreach instance in ly layout, i calculate the corresponding value of coverage. So my values can be from 0 to 255, if i have full coverage or not..

I would like to create a BMP file (not XPM, not  XBM because i need the sequence RGB )  with those calculated values (0 to 255).

But BMP is a binary format, so i need to convet the decimal values to ASCII chars and put that in a file.

The command IntToChar works almost -- not for every decimal value (00 for example) and even if i can get a result with intToChar, i can not print it in a file using fprintf command :( 

If someone can think about a smart way to create a BMP using Virtuoso (IPC ok, using another language) could you please help me with that? i'm unfortunately not "fluent" in perl or tcl. Any help is welcome!

Thanks a lot guys for your help.

Best,

Bruce

 

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  • serricat

     HI Andrew,

     I am trying to do the same thing and I have been able to convert the hex file to binary format but I am unsure of how to generate the hex file so that it creates a bmp.  Do you have any idea of how to format the hex file for bmp format?

    Thanks,

    Heather

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  • serricat

     HI Andrew,

     I am trying to do the same thing and I have been able to convert the hex file to binary format but I am unsure of how to generate the hex file so that it creates a bmp.  Do you have any idea of how to format the hex file for bmp format?

    Thanks,

    Heather

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