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Turnbull China Bikeride
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GRAPHING
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CHARTDRAW
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!ChartDraw
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GraphHelp
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1995-02-12
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Information is available on:
Chart Window Menus
Further Information
__________________________________________________
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.
ChartDraw is © Chris Johnson, 1992-4
__________________________________________________
This application provides interactive help when
the !Help application is active.
__________________________________________________
Chart Window Menus
Once a chart has been drawn, clicking on its
window with the menu button will present a number
of choices. Some of these are common to all
charts, others are specific to a particular type
of chart. All the actions are summarised below.
Common choices
Some actions are fairly clear. It is possible to
replot the chart in an alternative form by
choosing the new chart format. If pie charts, line
graphs or grouped barcharts are chosen, then you
may choose to plot one or all of the sets. The
barcharts can be toggled between vertical and
horizontal bars as the user wishes.
Label
Following this to the right allows four choices,
viz. New label, Edit label, Display, Delete all.
These options should be self explanatory.
New label
---------
You can add a maximum of TEN labels. When you
choose "new label" from the graphic menu, a
dialogue box will open. You can add the label text
up to a maximum of one hundred characters. When
the text is displayed on the chart it can be
dragged anywhere in the graph window. If you
double click on any label the dialogue box reopens
for editing.
Each label may have up to four font styles, and
supports multi-level super and sub script.
BORDER will toggle a border on/off around the text
FILLED will toggle the solid background on/off
(useful if the label overlays part of the chart)
DELETE will delete that particular label.
VERTICAL will toggle the label between normal and
rotated 90°.
Edit
----
If no labels have been entered, then Edit
will be greyed out, otherwise it will raise the
same dialogue box. If instead of using the menu,
you double click on the label on the chart, the
dialogue box will open set up for that particular
label ready for editing. If more than one label
has been entered, then the arrow buttons at the
top of the dbox will cycle through the labels.
Display
-------
This will simply toggle the DISPLAY of labels on
and off. It will not delete the labels.
Delete all
----------
This will clear all labels.
Print chart
Selecting this option will print the chart
directly, using whichever printer driver is
installed. The printed output should be the whole
chart as displayed on the screen, but without any
window borders etc.
Make Drawfile
This option will allow a copy of the chart to be
output to disc as a draw file, which can
subsequently be loaded into !Draw to allow
additional annotation or various enhancements to
be undertaken. The modified chart may then be
printed from !Draw in the normal way.
This option leads to a standard "save as"
dialogue box, and the file may be saved in any of
the normal RISC-OS ways, i.e. by dragging the icon
to a directory display, or, if the full path name
is set up, by simply clicking on OK or pressing
<return>.
Function key F3 is a short cut for this option.
Line and Bar Charts only
========================
Change Axes
When a chart is first plotted the program selects
automatically the range of the axes and the size
of the index marks along the axis. For barcharts,
it is assumed that the origin (zero) should be
included in the graph, whereas the line graph is
simply plotted over the range of values. The
program chooses round numbers for the range and
indexing along the axes (e.g. a full scale of 2000
rather than 1922.5, with indexing at 400, rather
than 384.5?). The change axes option allows the
user to override to some extent the program
choice, although the algorithm is not completely
overriden, in that round numbers close to the user
entered values may be chosen rather than the exact
values entered! Piecharts always add up to 100%,
so there is no need for any user choice.
Piecharts Only
==============
In the piechart menu, choosing segments allows
all segments to be `exploded' or returned to
normal.
Note that to explode or return an individual
segment, it is necessary to DOUBLE CLICK on the
segment. If there is more than one piechart on
screen, then the corresponding segment in each pie
will be exploded or returned. More than one
segment can be exploded by double clicking on a
different segment each time. When clicking to mark
a particular segment for canceling, click in the
inner half of the segment to ensure the click is
always registered.
Bar Graphs Only
===============
Vertical or Horizontal
This action is self explanatory, the chart may be
toggled between vertical and horizontal format
bars.
__________________________________________________
Further Information
Help windows with appropriate text are also
available from the Iconbar menu, and from the edit
window menu.
__________________________________________________