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Turnbull China Bikeride
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Turnbull China Bikeride - Disc 2.iso
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GRAPHING
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MULTIPLOT
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!MultiPlot
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IbarHelp
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1996-03-17
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Information is available on:
What this software does
Running the application
The Iconbar Menu
________________________________________________
Note that if any read me files are supplied as
part of this application, they may have more
recent informationthan is contained in this file.
MultiPlot is © Chris Johnson, 1992
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This application provides interactive help when
the !Help application is active.
________________________________________________
What this software does
This fully RISC-OS compliant multitasking
application allows the plotting of up to eight
graphs on the same set of axes. Each set of data
may contain up to 200 data points, and the line
associated with the points may have up to 200
segments. Suitable data files may be produced
using e.g. !GraphDraw, !FnPlotter or !CurveFit.
This application does not allow the direct entry
of data, and does no data processing. It simply
combines several graphs onto the same set of
scaled axes.
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Running the application
As a fully RISC-OS compliant application it can
be started from within the desktop in all the
normal ways. Double clicking on the !MultiPlot
icon in a directory viewer will install its icon
on the icon bar.
The application may also be started by double
clicking on any !MultiPlot data file in a
directory viewer. This will only work if the
!MultiPlot application has been 'seen' by the
filer, so that the filer knows to run !MultiPlot
before loading the file. If the application is
started in this way, besides the icon appearing on
the icon bar, the icon will show the number of
data files loaded, and the graph window will open.
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The Iconbar Menu
Clicking with MENU on the iconbar icon offers the
following options:
Info
The standard information box, with version
number. This is the number that should be quoted
in any communication regarding the application.
Help
Opens this help window
Plot type
This option leads to a submenu allowing
the data to be plotted normally, or with
either the x-axis, the y-axis or both x-
and y- axes on a logarithmic scale. For
speed, simply clicking on the Plot graph
option itself will produce a normal
plot. The program traps (I hope)
attempts to take the log of zero or a
negative number.
Choices...
Selecting this brings up a dialogue box that
allows a range of options to be changed, and these
changes may be made permanent so that they become
the new defaults when the application is
subsequently started.
The choices should be self explanatory. The font
names and size can be changed. To change the font,
simply click on the menu button to the right of
the font name field, when a menu will open with
all the installed fonts shown, from which a choice
can be made. Clicking on the menu button to the
right of the font size field will raise a menu to
choose the new size. The type of line (dashed or
continuous) used for plotting the data lines and
for producing a graph grid for the graph may be
chosen. The thichness of the lines when printing
or exporting drawfiles may also be set.
During data file load, certain error situations
are always reported. However, if the "Give
warnings during load" option is selected, then
additional messages will be displayed during file
load operations, e.g. whether a particular set of
data is just points, or just lines.
If the "Save graph layout options" is selected,
then all the CURRENT layout settings will be saved
in the default file, otherwise the old layout
default settings will not altered.
The changes will not come into operation until
the Set button is pressed. If the cancel button is
pressed, the dialogue box is removed from the
screen, and the original defaults remain in
effect. The selection can be made the new default
by clicking on the save icon. Note that the
default file is saved within the !MultiPlot
application, therefore, if the application is
being run from a floppy disc, the filer may
request the disc containing the !MultiPlot
application to be inserted in the disc drive.
Save Data
This will lead to a standard "save as" dialogue
box, allowing all the current data to be saved in
the one file in MultiPlot format. This is useful
if you have several lines loaded and wish to save
the complete set. Remember that MultiPlot data
files cannot be loaded into any other
applications, and once a composite data file has
been produced, there is no simple way to extract
the component parts again.
Clear data
Selecting this option will irretrievably clear
all data currently loaded, thus the program checks
with the user before clearing the data. The
iconbar icon will show 'no lines' below it after
this operation.
Quit
Terminates the application. It is up to the user
to ensure that any data which is to be saved has
been saved before the quit operation is invoked.
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