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Thread: glutBitmapString misses blank spaces

  1. #1
    Junior Member Newbie
    Join Date
    Jun 2009
    Posts
    18

    glutBitmapString misses blank spaces

    Hi,
    It seems that glutBitmapString misses blank spaces.
    I am making an animation, at each time step, I use glutBitmapString to print out some information like this,

    sprintf(message, "step=%-8d t=%-15g mass=", step, t);
    glutBitmapString(GLUT_BITMAP_HELVETICA_18, (unsigned char*) message);

    however, as the variables step ,t, change at each time step, and the message is of different length which should not be ( If I use printf("%s\n",message) to print the same message to screen, it is of exact length and mass aligns at the same column). I need "mass=" to apear at the exact location at each time step.

    Anybody else has met the same problem? Any suggestion how to fix it?
    Thanks.

  2. #2
    Senior Member OpenGL Pro BionicBytes's Avatar
    Join Date
    Mar 2009
    Location
    UK, London
    Posts
    1,169

    Re: glutBitmapString misses blank spaces

    work around the problem.
    Break the print statement up into two or more parts and use gltranslatef to position the printing of the string.

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