Name: PGPIXL Purpose: draw pixels Category: GRAPHICS File: pgplot.src Author: T.J. Pearson Use: see description below. Description: SUBROUTINE PGPIXL (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 Draw lots of solid-filled (tiny) rectangles aligned with the coordinate axes. Best performance is achieved when output is directed to a pixel-oriented device and the rectangles coincide with the pixels on the device. In other cases, pixel output is emulated. The subsection of the array IA defined by indices (I1:I2, J1:J2) is mapped onto world-coordinate rectangle defined by X1, X2, Y1 and Y2. This rectangle is divided into (I2 - I1 + 1) * (J2 - J1 + 1) small rectangles. Each of these small rectangles is solid-filled with the color index specified by the corresponding element of IA. On most devices, the output region is "opaque", i.e., it obscures all graphical elements previously drawn in the region. But on devices that do not have erase capability, the background shade is "transparent" and allows previously-drawn graphics to show through. 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.