Name:         GRPIXL

Purpose:      solid-fill multiple rectangular areas

Category:     GRAPHICS

File:         pgplot.src

Author:       T.J. Pearson

Use:          see description below.

Description:

            SUBROUTINE GRPIXL (IA, IDIM, JDIM, I1, I2, J1, J2, 
           1                   X1, X2, Y1, Y2)
            INTEGER IDIM, JDIM, I1, I2, J1, J2
            INTEGER IA(IDIM,JDIM)
            REAL    X1, X2, Y1, Y2
      
       Determine the size of each rectangular element. If it is equal
       to the device pen width and the device supports pixel primitives,
       use pixel primitives. Otherwise, if the size is smaller than the
       device pen width emulate pixel output by plotting points. If the
       size is larger than the device pen width, emulate by outputting
       solid-filled rectangles.
      
       Arguments:
        IA     (input)  : the array to be plotted.
        IDIM   (input)  : the first dimension of array A.
        JDIM   (input)  : the second dimension of array A.
        I1, I2 (input)  : the inclusive range of the first index
                          (I) to be plotted.
        J1, J2 (input)  : the inclusive range of the second
                          index (J) to be plotted.
        X1, Y1 (input)  : world coordinates of one corner of the output
                          region
        X2, Y2 (input)  : world coordinates of the opposite corner of the
                          output region

Updates:      Oct 16, 1998: JPT automatically extracted from source.