103 lines
6.0 KiB
Plaintext
103 lines
6.0 KiB
Plaintext
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C NXOFF NYOFF NXID6 NYID6 NXVERN NYVERN IDXBAS IDYBAS JXDISL JYDISL
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1600 1200 1800 6700 0 -150 80 110 0 0
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C NXDISL NYDISL JSLOW NODISK KLIPX JPERC INCHX INCHY JTICW JTICH
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1024 768 200 0 -3 60 23000 10000 15 90
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C MULFNT
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350
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NXOFF is the horizontal offset of the grid in thousandths of an inch.
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NYOFF is the vertical offset of the grid in thousandths of an inch.
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An increase in NXOFF means the grid (and axes, curves, etc.) will
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be moved to the right within the plot window. An increase in NYOFF
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means the grid is moved upward within the plot window. NXOFF and
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NYOFF are margins on the left and bottom.
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NXID6 Horizontal location for start of plot legend in thousandths of an inch.
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NYID6 Vertical location for start of plot legend in thousandths of an inch.
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Only SPY PLOT is involved (the location of the CALCOMP PLOT legend
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is controlled by very old variables within STARTUP). In the above,
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"location" refers to the start of the legend --- the left edge of
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the top line of the several lines. Zero NYID6 corresponds to the top
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of the plot window. Vertical distance is measured positively downward.
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Horizontal location increases as one moves left to right.
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NXVERN is horizontal location of Y-axis numbers, in thousandths of an inch.
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NYVERN is vertical location of 1st Y-axis number, in thousandths of an inch.
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Only SPY PLOT is involved (CALCOMP PLOT axis numbers are unaffected).
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As with the preceding legend, location refers to the start of the
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number. Increasing NXVERN will move Y-axis numbers to the right.
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Increasing NYVERN will move Y-axis numbers downward.
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IDXBAS is the width of characters of the base font, in monitor pixels.
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IDYBAS is the height of characters of the base font, in monitor pixels.
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These numbers no longer are used for vector screen graphics. DISLIN
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uses the single MULFNT below as an alternative. So, IDXBAS and
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IDYBAS can be ignored except for PostScript output if NOPOST = 0.
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Because of PostScript output, we continue using values of years past.
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are largely arbitrary, since MULFNT will scale the text,
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anyway. Later, either this pair of sizes or MULFNT is expected to
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disappear. Obviously, one does not need 3 parameters to control the
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size of text.
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JXDISL Horizontal pixels that locate of upper-left corner of the plot window.
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JYDISL Vertical pixels that locate of upper-left corner of the plot window.
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Normally, the user will ignore this parameter pair, which then will
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be set to (1, 1) which corresponds to the upper-left corner of the
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screen. The idea is to have graphics above and text (ATP printout)
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below.
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NXDISL Pixels of horizontal resolution for the monitor being used.
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NYDISL Pixels of vertical resolution for the monitor being used.
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JSLOW Artificial added time delay in milliseconds after each refresh of a
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ROLLing SPY PLOT. For any positive value, one line of output to
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the DOS window of the screen (not the .LIS file) will document each
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such waste of time. Note KSLOWR of STARTUP defines the frequency
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of plot refreshing.
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NODISK is a binary switch that allows the suppression of DISLIN graphics
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during DISK use. Value unity will suppress the graphics whereas
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value zero will not. Note the difference compared with Salford EMTP,
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which automatically suppressed screen graphics during DISK use.
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With GNU ATP and DISLIN, this decision is left to the user.
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KLIPX Meaning depends on the sign. For full-width plotting, there is a
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minus sign, and the absolute value will be small. Then -KLIPX =
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is the number of X pixels that are to be removed from NXDISL as
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the plot window is defined. If zero, the right side of the window
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frame will be missing. Value 3 is enough to show the frame, which
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reassures the user that nothing has been lost on the right. This
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represents waste, but is an aesthetically pleasing choice. This is
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for a negative value. For a positive value, the name and meaning
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JXPERC change. JXPERC > 0 is the width of the graphic window as a
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percentage of the total screen width NXDISL.
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JYPERC is the height of the graphic window as a percentage of the total
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screen height NYDISL. Value 60 is referred to as full-height,
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although 80% and 93% have been used (see HIGHER*.AUX).
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INCHX is the width of the plot window in thousandths of an inch.
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INCHY is the height of the plot window in thousandths of an inch.
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Remember that the Y axis is 8 inches high, and the time axis is
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20 inches long (for full width). So this pair of numbers should
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allow some extra space on all sides. Something such as 10 and 22
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thousand are reasonable. These two numbers provide magnification.
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The grid size varies inversely with these numbers. As more space
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is allowed, less is used, so a plot becomes smaller.
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JTICW is half the width of an axis tic mark, in thousandths of an inch.
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JTICH is half the length of an axis tic mark, in thousandths of an inch.
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Generally, the second number will be 5 or more times the first.
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X-axis tic marks will be drawn using the color of the X axis. But
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Y-axis tic marks will be drawn using the color of the grid in order
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not to interfere with Y-axis numbers.
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MULFNT is an empirical scaling factor for text. Values as small as 200
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and as large as 400 have been used. "Beauty is in the eye of the
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beholder." Were it not for QUARTER PLOT, a larger value probably
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would be used. As QUART.DAT illustrates, value 300 is plenty
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big for this use. Overprinting generally is to be avoided.
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