* Vector Graphics Commands - @(#)grafhelp.dat 2.1 04/23/99 *


EP - This is an alias for ERASE; PLOT
ERASE - Clear the graphics screen and delete previous MONGO commands.
LRPLOT [ x1 x2 ] - Make twp plots, left channel over right channel.
M - This is an alias for MONGO
MONGO [ command ] - Pass the `command' to MONGO for execution.
PCOPY [ devtype ] - Make a hardcopy of the plot on device devtype.
PLIM x1 x2 [or ?] - Set plotting limits. Default is the left half: 0 to 4095.
PLOT [ CHANNEL n ] [ x1 x2 ] - Plots the working buffer from pixels x1 to x2.
PLOT ALL - Plot the entire spectrum as one linear array, disregarding PLIM.
PLOT LEFT - Plots the Reticon's `A' side, i.e. the lower-numbered pixels.
PLOT RIGHT - Plots the Reticon's `B' side, i.e. the higher-numbered pixels.
PLOTID [ string ] - Set or examine MONGO ID label
POLYPLOT - Performs a scatter plot with curve for data in the working buffer.
REPLOT [ CHAN n ] x1 x2 - Replots x1 through x2 with the last vertical scale.
SAMEPLOT [ CHAN n ] [ x1 x2 ] - Replots with the last X and Y scales.
VTMODE - Alias for MONGO FORCEVT - to reset to the vt100-type window.

EP - This is an alias for ERASE; PLOT

ERASE - Clear the graphics screen and delete previous MONGO commands. Note that MONGO has its own ERASE command which simply clears the graphics screen and does nothing else.

LRPLOT [ x1 x2 ] - Make twp plots, left channel over right channel. The scale is set by the maximum Y value in the interval, and is the same for both plots.

M - This is an alias for MONGO

MONGO [ command ] - Pass the `command' to MONGO for execution. If `command' is missing, drop into MONGO interactively. Type `HELP MONGO word' for help information on MONGO words.

PCOPY [ devtype ] - Make a hardcopy of the plot on device devtype. This uses MONGO commands to play back the plot at the printer device's resolution. If `devtype' is missing or out of range, the landscape printer (6) is chosen. Type `HELP MONGO PRINTER' for more details.

PLIM x1 x2 [or ?] - Set plotting limits. Default is the left half: 0 to 4095. The limits given to PLIM become those plotted whenever there is a 1-D spectrum in the working buffer and no arguments are given to the PLOT or STATS command. One exception: for the PLOT RIGHT command, the limits are those given in the previous PLIM command plus half the size of the total array. For example, if `PLIM 100 4000' has been executed, and the data is 8192 pixels long, then `PLOT RIGHT' will plot from 4196 through 8095. If the argument is `?', the existing limits are printed.

PLOT [ CHANNEL n ] [ x1 x2 ] - Plots the working buffer from pixels x1 to x2. The plot is autoscaled to the data, and a box and ID label are drawn. If x1 and x2 are missing, plots between left and right limits set by the PLIM command (default is 1 through 4096). For multichannel data (including the Reticon, which has channels `A' = 1 and `B' = 2), the CHANNEL modifier can be used to select a particular channel or row from an image to be graphed. For the Reticon, the first possible pixel is 1 and the last is 4096; there are two channels for the A and B arrays (usually called `left' and `right'). Note that ROW and CHAN are equivalent to CHANNEL.

PLOT ALL - Plot the entire spectrum as one linear array, disregarding PLIM.

PLOT LEFT - Plots the Reticon's `A' side, i.e. the lower-numbered pixels.

PLOT RIGHT - Plots the Reticon's `B' side, i.e. the higher-numbered pixels.

PLOTID [ string ] - Set or examine MONGO ID label

POLYPLOT - Performs a scatter plot with curve for data in the working buffer. Note that the appropriate routines must previously have been executed to have left the appropriate data there for plotting.

REPLOT [ CHAN n ] x1 x2 - Replots x1 through x2 with the last vertical scale. No box or id label is drawn. Note that, as with PLOT, `right' and `left' are also acceptable arguments. The CHAN modifier acts exactly as it does for PLOT.

SAMEPLOT [ CHAN n ] [ x1 x2 ] - Replots with the last X and Y scales. This means if the x1 and x2 limits are beyond the graph, they are not plotted. No box or id label is drawn. Note that, as with PLOT, `right' and `left' are also acceptable arguments. The CHAN modifier acts exactly as it does for PLOT.

VTMODE - Alias for MONGO FORCEVT - to reset to the vt100-type window. This is only needed if an interrupt has left the interpreter I/O in the Tektronix window when. This can only happen when the xterm is being used for both alphanumerics and graphics output in the new MONGO TEKXTERM mode.