ARM Club 3/TheARMClub_PDCD3.iso/hensa/maths/graphdraw_1/!GraphDraw_Resources_GraphHelp

Text File | 1995-04-22 | 5.2 KB | 184 lines

Information is available on:


  Graph window menus

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Note that if any read me files are
supplied as part of this application,
they may have more recent information
than is contained in this file.

GraphDraw is © Chris Johnson, 1992
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This application provides interactive
help when the !Help application is
active.
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Graph Window Menus

Whenever a graph is being displayed,
clicking 'menu' will lead to a further
range of options. Some of these are
common to all the graph types, others
are specific to cubic spline.


Legend
 This opens a window which allows you to
enter text to label the graph axes, and
a title string for the graph. Clicking
on display will place the labels on the
graph, while delete will remove labels
from the graph (the text remains in
memory and can be reinstated by
reselecting label and clicking on
display). Simply closing the menu will
leave the state of the labels as they
were. This current version allows you to
use up to four font styles, and also
super and sub scripts by clicking on the
appropriate icons.

 The labels are dragable icons and can
thus be dragged to anywhere on the graph
if you do not like the default
positions. The same labels will appear
on any graph, with the previous position
being remembered. The y-axis label may
be plotted either horizontally or
vertically, with the text rotated
through 90 degree.

 If data is saved after legends have
been entered, then the text is also
saved, and is reloaded when the data is
reloaded.

 If labels are displayed on the graph,
then simply double clicking over one of
them will raise this dialogue box.


Layout

This leads to a submenu with two
choices, axes and points.

Axes leads to a dialogue window in
which various aspects of the way the
graph is laid out may be changed, e.g.
whether the axis pips are inside,
outside or straddle the axis lines, the
size of the pips, whether the graph is
boxed in. The choices available are
under continuous review, and may be
changed in future releases.

Points leads to a further submenu which
allows the size of the symbols on the
graph to be changed, and the type of
symbol (shape and whether filled or
outline) used to plot each set of data
to be independently chosen. Note that
the size of the symbols is set in os
units.


Make Drawfile
A standard 'save as' dialogue box will
be opened. The file icon may be dragged
to a directory viewer, or if the full
filename path is set up it is possible
to click on OK. The file saved is a
Drawfile of the graph being displayed.
This file can then be loaded into !Draw
or !DrawPlus for further enhancement. It
is also permissible to drag the file
icon into a !draw window to add the
graph to an existing draw document, or
drag the icon to the !draw icon on the
iconbar, when a new draw window will be
opened. These latter operations now make
use of direct memory transfer.

The production of !Draw format files
means that the graphs can be loaded into
!Draw for enhancement, and can also be
loaded into the various DTP packages now
available.

When it is first loaded into !Draw, the
whole graph appears as one object, and
may be scaled, moved, etc. as a whole.
The line thickness may be changed, etc.
The objects making up the graph may be
ungrouped in the normal way. This allows
adjustment of individual parts of the
graph, or annotation. It needs care when
dealing with the individual parts of the
graph, otherwise you may inadvertantly
move parts of the axis for example, or
even the graph itself, and have great
trouble getting it back to the correct
place.

If you are familiar with using !Draw,
then it should be easy to play around
with the draw files output by
!Graphdraw.

If the graphdraw edit window has input
focus, then the function key F3 may be
used as a short cut for this option.


Make plotfile
This will output a data file of the
points AND the current fitted line in a
form suitable for loading into the
MultiPlot application. (If only the
points have been plotted, then only the
points will appear in the multiplot
file). This has the same look and feel
of graphdraw, but allows the combining
of up to 8 sets of line and point data
onto the same set of axes (check the
read me files in Multiplot for the
latest information). Multiplot deals
only with the graphical display, it has
no data entry or processing facilities.
It will accept plotfiles from a number
of applications besides graphdraw.
Contact the author for information.


Print Graph
Choosing this option gives a printout of
the complete graph via whichever printer
driver application is installed. A
printer driver must be installed,
otherwise !Graphdraw will complain. The
"Print" key may be used as a short cut
if the edit window has input focus.


Explain
Opens this window.


Cubic Spline option only


Interpolate
This option is available ONLY from the
cubic spline graph, and allows the
interpolation of single values, or the
dumping of a range of values to the
printer. Note that it is not possible to
extrapolate the spline curve beyond
either of the end points.
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Further Information

Help windows similar to this one can be
accessed from the iconbar and the edit
window menus.
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