IBM Release 1.93 manual Dissipation, Slice

DISSIPATION	Power dissipation density , -∇S (the Poynting vector). Normalized
	to the volume of one cell, so that volume integrals of this quantity
	give the correct power dissipation inside the region.
	Parameters: name xlo xhi ylo yhi zlo zhi file xinside yinside zinside
SLICE	Produce a bitmap of variable over the given domain, with control
	over the colour palette and the scale. Variables are always taken in
	cyclic order, i.e. x, y, z, x, y, z,..., which preserves the right-
	handedness of the coordinate system. The positive sense of the
	perpendicular axis is always out of the screen towards the viewer.
	(Technical detail: The Windows bitmap format has the pixel index
	starting at (0, 0) in the upper left corner of the screen, so that the
	column index corresponds to position correctly but the row index is
	inverted. POEMS flips the row index internally, so that the screen
	coordinates are correct for the simulation geometry--positive X is to
	the right, positive Y is up.)
Perpen-	Orienta-	Increasing	Increasing	Increasing out
dicular	tion	to right	upwards	of the screen
Z	XY	X	Y	Z
X	YZ	Y	Z	X
Y	ZX	Z	X	Y

Table 1: Axis orientations for SLICE bitmaps

Parameters: orientation variable phase xlo xhi ylo yhi zlo zhi file curve palette palfile

Choices of palette are grey, saturation, flame, bluered, and custom. Grey scale palettes are simple and unexciting, but clear. Saturation palettes keep the luminance level nearly constant (except that value 0 is black), but vary the hue from yellow to a saturated blue. Flame palettes start out black, go through dark grey, dull red, bright red, orange, yellow, white, and blue-white, mimicking the colour of a hot object. The bluered palette is suitable for bipolar values such as E and H fields; it forces white to be at value 0, with increasing red saturation for positive values and increasing blue saturation for negative values. A custom palette requires a palette file palfile. These are text files with the form

level	R	G	B<newline>
level	R	G	B<newline>
...

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