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<H3><A NAME="SECTION001013100000000000000">
<TT>SET/GRAPHIC</TT> and
<TT>SHOW/GRAPHIC</TT></A>
</H3><A NAME="8149"> </A><A NAME="8150"> </A>
<P>
<TT>SET/GRAPHIC</TT> plays an important role in the plot package. This
command gives the user control over the plot size, line types (<TT> LTYPE</TT>)<A NAME="8153"> </A>, line thickness (<TT> LWIDTH</TT>)<A NAME="8155"> </A>, symbol type (<TT> STYPE</TT>)<A NAME="8157"> </A> and size (<TT> SSIZE</TT>)<A NAME="8159"> </A>, etc. In
Table <A HREF="node88.html#set-options">6.2</A> the various options that can be set with the
<TT>SET/GRAPH</TT> command are listed, together with the default
settings. Below we briefly discuss some of the options. More
extended documentation can be found in the help file of the <TT> SET/GRAPHIC</TT> command.
<P>
By default, all data points in frames, keywords and descriptors are
connected with a line; data points in tables are plotted individually.
This setting can be changed with the <TT>LTYPE</TT> and <TT>STYPE</TT> options
in <TT>SET/GRAPH</TT>. Normally, when plotting data points in a frame,
descriptor, or keyword, the plot package first looks for the line type.
If the line type is set to 0 (<TT>LTYPE=0</TT>) it looks for the symbol
(<TT>STYPE</TT>). If both <TT>LTYPE</TT> and <TT>STYPE</TT> are found to be 0 a
fatal error occurs.
<P>
In case of table plotting the package first looks for the symbol
type. When <TT>STYPE=0</TT> a line will be drawn corresponding to <TT> LTYPE</TT>. An error occurs if both <TT>LTYPE</TT> and <TT>STYPE</TT> are 0.
For histogram plotting or when the bin mode <A NAME="8174"> </A>@<TT>BIN</TT>is on (<TT>BIN=ON</TT>), the package needs a line type
greater than zero; an error occurs when <TT>LTYPE=0</TT>. Table data
can not be plotted with <TT>BIN=ON</TT>.
<P>
By default, before a <TT>PLOT</TT> command is executed the graphics
window is erased. To switch off the erase, you can use the option
<TT>CLEARGRA=OFF</TT>. By doing so, subsequently issued plot commands
will run in overplot mode: the screen content is kept. Hence, by
issuing a number of <TT>PLOT</TT> commands you can easily produce
several plots on one screen (page). To help you more in designing
the layout of your plot scales <A NAME="8182"> </A>(and
sizes)<A NAME="8183"> </A><A NAME="8184"> </A> as well as the position
on the screen (paper) can be pre-defined by <TT> XSCALE</TT><A NAME="8186"> </A> and <TT> YSCALE</TT><A NAME="8188"> </A>, and <TT> XOFFSET</TT><A NAME="8190"> </A> and <TT> YOFFSET</TT><A NAME="8192"> </A>.
The default font used by MIDAS is a simple one but is plotted
fast. More fonts are available to enable you to obtain publication
quality graphics output. With the command <TT>SET/GRAPHIC
FONT=n</TT><A NAME="8194"> </A>, where n is larger than 0, you can
use a different (nicer) font than the default one. Currently, the
following font sets are available:
<BR>
<TABLE CELLPADDING=3>
<TR><TD ALIGN="LEFT"><TT> 0</TT></TD>
<TD ALIGN="LEFT">Default built-in font</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> 1</TT></TD>
<TD ALIGN="LEFT">High quality roman font</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> 2</TT></TD>
<TD ALIGN="LEFT">Greek font</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> 3</TT></TD>
<TD ALIGN="LEFT">Script font</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> 4</TT></TD>
<TD ALIGN="LEFT">Old English font with astronomical symbols</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> 5</TT></TD>
<TD ALIGN="LEFT">Tiny roman font, simpler than 1</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT"> </TD>
</TR>
</TABLE>
To display these fonts and the associated character and symbol sets
you can run the tutorial <TT>TUTORIAL/GRAPH GENERAL</TT>.
<P>
<BR>
<DIV ALIGN="CENTER"><A NAME="8380"> </A>
<TABLE>
<CAPTION><STRONG>Table 6.2:</STRONG>
<TT> SET/GRAPHIC</TT> Options</CAPTION>
<TR><TD>
<DIV ALIGN="CENTER">
<TABLE CELLPADDING=3 BORDER="1" ALIGN="CENTER">
<TR><TH ALIGN="LEFT"><B>Option </B></TH>
<TH ALIGN="LEFT"><B>Value and meaning and defaults</B></TH>
</TR>
<TR><TD ALIGN="LEFT"><TT> DEFAULT</TT></TD>
<TD ALIGN="LEFT">no value; sets plot package in default mode</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> XAXIS</TT>=</TD>
<TD ALIGN="LEFT"><TT> AUTO</TT> or <TT> xstart,xend,xbig_tick,xsmall_tick</TT>
in world coordinates;</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">when xsmall_tick < 0 a logarithmic axis is plotted;
the default is <TT> AUTO</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YAXIS</TT>=</TD>
<TD ALIGN="LEFT"><TT> AUTO</TT> or <TT> ystart,yend,ybig_tick,ysmall_tick</TT>
in world coordinates;</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">when ysmall_tick < 0 a logarithmic axis is plotted;
default is <TT> AUTO</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> FRAME</TT>=</TD>
<TD ALIGN="LEFT"><TT> RECT</TT> or <TT> SQUA</TT>; default is <TT> RECT</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> XSCALE</TT>=</TD>
<TD ALIGN="LEFT"><TT> AUTO</TT>, scale in world units/per mm or size of
plot</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YSCALE</TT>=</TD>
<TD ALIGN="LEFT"><TT> AUTO</TT>, scale in world units/per mm or size of
plot</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> XOFFSET</TT>=</TD>
<TD ALIGN="LEFT"><TT> NONE</TT> or the offset of the left y axis to left
device boundary</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YOFFSET</TT>=</TD>
<TD ALIGN="LEFT"><TT> NONE</TT> or the offset of the lower x axis to lower
device boundary</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> XFORMAT</TT>=</TD>
<TD ALIGN="LEFT"><TT> NONE</TT>, <TT> AUTO</TT> or format description
(see below)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YFORMAT</TT>=</TD>
<TD ALIGN="LEFT"><TT> NONE</TT>, <TT> AUTO</TT> or format description
(see below)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> PMODE</TT>=</TD>
<TD ALIGN="LEFT">0 (plot without frame and legend), or</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">1 (plot with frame and some information), or</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">2 (plot with frame and full legenda) which is default</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> FONT</TT>=</TD>
<TD ALIGN="LEFT">font to be used to write text; default is 1;
(see below)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> LTYPE</TT>=</TD>
<TD ALIGN="LEFT">1 (solid line) to 6 (long dash - short dash);
(see below)</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">default is 1; 0 corresponds with no line at all</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> LWIDTH</TT>=</TD>
<TD ALIGN="LEFT">set line width; 0 or 1 for single width; 2, 3 and 4
for increasing thickness</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> STYPE</TT>=</TD>
<TD ALIGN="LEFT">1 (dot) to 21 (left arrow); default 4 (cross);
0 corresponds with no symbol at all</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> SSIZE</TT>=</TD>
<TD ALIGN="LEFT">value; set the scaling factor of symbols;
default is 1</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> TSIZE</TT>=</TD>
<TD ALIGN="LEFT">value; set the scaling factor for text strings; default
is 1</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> TWIDTH</TT>=</TD>
<TD ALIGN="LEFT">value; set the line width for text strings;
default is 1</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> BINMODE</TT>=</TD>
<TD ALIGN="LEFT"><TT> OFF</TT> or <TT> ON</TT>; default is <TT> OFF</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> COLOUR</TT>=</TD>
<TD ALIGN="LEFT">number ranging from 0 to 7; the default is black (1)</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">The setting has only effect on graphic display devices
supporting colour</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> BCOLOUR</TT>=</TD>
<TD ALIGN="LEFT">number ranging from 0 to 7; set the background colour;
the default is black (1)</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">The setting has only effect on graphic display devices
upporting colour</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> CLEARGRA</TT>=</TD>
<TD ALIGN="LEFT"><TT> ON</TT> or <TT> OFF</TT>. <TT> OFF</TT> will not clear graphic
screen for a <TT> PLOT</TT> command;</TD>
</TR>
<TR><TD ALIGN="LEFT"> </TD>
<TD ALIGN="LEFT">default <TT> ON</TT></TD>
</TR>
</TABLE></DIV> <A NAME="8381"> </A>
<A NAME="set-options"> </A> </TD></TR>
</TABLE>
</DIV>
<BR>
<P>
If a colour postscript printer is at your disposal you may use the
colour setting options <TT>COLOUR=n</TT><A NAME="8207"> </A> and
<TT>BCOLOUR=n</TT><A NAME="8209"> </A>.
In the <TT>SET/GRAPH</TT> command defaults for single parameters can be
(re)set by: <TT>SET/GRAPH par_name=value</TT>. The reinitialization of all
plot parameters can be done by: <TT>SET/GRAPHIC</TT> or <TT>SET/GRAPHIC DEF</TT>.
<P>
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<ADDRESS>
<I>Petra Nass</I>
<BR><I>1999-06-09</I>
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