StarInfo/Goodliffe/Docs/GPMan

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StarInfo/Goodliffe/Docs/GPMan_txt

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++------------------------+
||       GraphPlus        |
||     Pete Goodliffe     |
++------------------------+
||        Manual          |
++------------------------+

1.0 INTRODUCTION

GraphPlus is a desktop graph processor, taking data from CSV files and
generating high quality graphs in the form of drawfiles. It can
produce line and scatter graphs, various bar charts, multiple pie
charts, and tables. It can produce all but the latter in 2D or
pseudo-3D versions.

CSV files are a standard for data transfer, and should be produced by
any speadsheet. However, if you do not have a means of producing data
for a graph then the application CsvEdit is provided to create them. It
is also a convenient application or minor editing of CSV files. Secion
6 describes more about CSV files.

See the CsvEdit manual inside it's directory for instructions in its
operation.


2.0 GRAPHPLUS OPERATION

GraphPlus loads with a double click of the !GraphPlus filer icon,
installing itself on the icon bar. A window displaying information
about the program appears which disappears when a mouse button is next
pressed. Clicking with Menu over the GraphPlus icon brings up the
standard GraphPlus menu, and clicking on the icon with Select brings
up the Graph Format Window.

Up to six sets of data can be incoroparted on each graph. These are
known as data groups.

In order to create a graph, GraphPlus needs to be told which CSV file
to use as the data file containing the data groups. Drag the file onto
the Graph Format window, or onto the GraphPlus icon to do this. If it
is not a CSV filetype file, a query window will occur to verify the
choice of file. Once a data file has been shown to GraphPlus certain
information about the graph needs to be set; these settings are
explained in the following summary of the GraphPlus menus.

2.1 THE ICON BAR MENU

Clicking with Menu over the GraphPlus icon brings up the menu in
figure 2.1

The Info option leads to the GraphPlus information window, and Quit
leaves the application. Clicking on either Line, Bar, Pie, or Table
selects the type of graph GraphPlus will produce, the current choice
is ticked.

    +-----------+
    | GraphPlus |
    +-----------+
    |  Info   > |
    |  Style  > |
    |  Groups > |
    |  File   > |
    +-----------+
    |� Line     |
    |  Bar      |
    |  Pie      |
    |  Table    |
    +-----------+
    |  Quit     |
    +-----------+     figure 2.1

2.2 THE STYLE SUBMENU

This is shown in figure 2.2.

To make GraphPlus produce a key for the graph, select Key. Switching
the key on causes GraphPlus to use the key data in the Map Groups
window (see section 2.6). In most cases this will add a key to the
right hand side of the graph, although when creating pie charts, the
key data is used as a label for each separate chart, and when creating
tables, the key data is used as column headings.

The background entry selects whether or not the graph is given a
background box. The dialogue box it leads to is a colour picker to
choose the colour of this box. The default is a light shade of blue.

The fonts submenu is discussed in the following section.
The best fit submenu is discussed in section 2.4
The palette submenu is discussed in section 2.5

3D graphs is ticked when the graph output will be pseudo-3D.

Outline is ticked when bar chart and pie chart features are drawn with
a black outline.

    +---------------+
    |    Style      |
    +---------------+
    |� Key          |
    |� Background > |
    |  Fonts      > |
    |  Best fit   > |
    |  Palette    > |
    |� 3D graphs    |
    |� Outline      |
    +---------------+     figure 2.2

2.3 THE FONTS SUBMENU

This is shown in figure 2.3.

Each of the Fonts submenu entries lead to a font selector dialogue
box, in which you can choose which fonts, and at what size, the graph
is drawn using. These selections are split into three categories:

Title - The graph title is displayed in this font

Axis - Any axis labels and data markings on the axis appear in this
       font. All text in the body of a table is displayed in this font.

Key - The key is produced with this font, as are labels on pie charts.
      N.B. The table headings using the key data from 'Group Map' dialogue
           boxes ARE NOT displayed in this font, but in the axis font.

    +----------+
    |  Fonts   |
    +----------+
    |  Title > |
    |  Axis  > |
    |  Key   > |
    +----------+     figure 2.3

2.4 THE BEST FIT SUBMENU

GraphPlus uses linear regression to calculate lines of best fit. This
menu allows you to choose whether it uses X-on-Y or Y-on-X
relationships. These are two different methods of calulating the line
of best fit, each giving a slightly different line.

    +----------+
    | Best fit |
    +----------+
    |  X on Y  |
    |� Y on X  |
    +----------+     figure 2.4

2.5 THE PALETTE SUBMENU

This menu is a list of 16 colours, each definable by a standard colour
picker dialogue box. The pie charts are drawn with these colours, the
first segment in pie colour 1, the second in pie colour 2, and so on.
When the sixteenth colour is reached, the table cycles back to use pie
colour 1 again.

2.6 THE GROUPS SUBMENU

From this submenu information about individual groups can be altered.
The first entry, Map leads to the Map Groups submenu (see following
section), and the latter leads to the Group Style submenu (see section
2.8).

    +----------+
    |  Groups  |
    +----------+
    |  Map   > | 
    |  Style > |
    +----------+     figure 2.6

2.7 THE MAP GROUPS SUBMENU

This is shown in figure 2.7.

Each of these entries lead to a dialogue box allowing the user to
select which column of the CSV data file is to be used for each data
group. The Labels entry allows you to choose which column labels are
to be found in (labels are text entries used to define 'rows' of the
CSV file; used in bar graphs, pie charts, and tables). The dialogue
box also contains the text which will be used for that group's key
entry, if key has been selected from the Style submenu (see section
2.2)

If any mappings are made outside the limits of the given CSV file,
they will be disregarded when the graph is made.

    +------------+
    | Map groups |
    +------------+
    |  Group 1 > |
    |  Group 2 > |
    |  Group 3 > |
    |  Group 4 > |
    |  Group 5 > |
    |  Group 6 > |
    |  Labels  > |
    +------------+     figure 2.7

2.8 THE GROUP STYLE SUBMENU

This submenu is similar to the Map group menu, but without the last
entry, Labels.

Each of these entries leads to a dialogue box in which you set the
appearance of a data group; the style and size of points (used in line
graphs), the colour of the group (i.e. the colour the points/line/bar
is drawn in), the thickness and dash-style of a line produced in a
line graph, and on a line graph whether the points are joined with a
line, whether the line is solid underneath (i.e. the area under the
line shaded in the group's colour - N.B. This can obscure parts of the
graph underneath), and whether a line of best fit is plotted for the
group.

To produce a scatter graph, simply deselect the Join icon.

The produce a line without points, select the blank point style.

2.9 THE FILE SUBMENU

This menu, reached from the main menu is shown in figure 2.9.

The Save oprion leads to a save window from which you can save the
current GraphPlus template; a record of the style and mapping settings
you have entered, so that a graph can be replicated at a later date.
To load a template file into GraphPlus, either double click on it or
drag it into a GraphPlus window.

The Datapath entry leads to a window displaying the path name of the
CSV file GraphPlus will use as the data file. If it is blank, no CSV
file has been dragged into GraphPlus.

Selecting Default causes the graph template to be reset to its default
version. Before this occurs a dialogue box prompts for conformation of
the procedure, as it cannot be reversed.

    +-------------+
    |    File     |
    +-------------+
    |  Save     > |
    |  Datapath > |
    |  Default    |
    +-------------+     figure 2.9


3.0 THE GRAPH FORMAT WINDOW

Clicking with select on the GraphPlus icon bar icon brings up the
Graph Format window. This allows you to enter further information
about the graph prior to its creation. This is entered in a central
scrollable pane. When any change has been made to this pane, click on
the OK icon at the bottom of the Graph Format window. If you make a
mistake and want to restore the pane to the settings currently in
memory, click on Cancel. Any alterations in this window are not stored
until OK is clicked.

At the top of the graph format window is an icon detailing the
currently selected graph type, and the create button. When all the
required selections have been made click on this (see section 3.2).

Clicking menu within the Graph Format window brings up the Format
menu. This is similar to the icon bar menu, but without the Info and
Quit options. It therefore contains all the graph formatting options
not contained within the Graph Format window.

3.1 THE GRAPH FORMAT OPTIONS

These are the selections made in the central scrollable pane:
  � The title, and whether it is displayed or not.
  � The X and Y axis labels, and whether they are displayed or not.
  � Whether solid or dotted or no grid lines are drawn on a line or
    bar graph's axis.
  � At what divisions these grid lines are made, also the repetition
    space of data markings on the axis.
     This is automatically chosen by GraphPlus if left blank.
  � At what interval sub-rulings are made between main divisions.
  � Whether the application calculates the upper and lower limits of
    the axis itself, or uses ones specified by
    the user.
  � What type of bar graph is produced;
      Adjacent All bars touch each other
      Individual All bars stand alone
      Offset Bars overlap slightly, and are grouped into rows
      Grouped Bars touch, but each row of data is separated
      Overlaid Each row of data is plotted on the same bar
  � Whether there is a margin to the left and right of the bars
  � Whether the bars are plotted horizontally or vertically
  � Whether any elements in pie charts are exploded
  � At which segment of pie explosion begins and finishes

3.2 CREATING A GRAPH

Clicking on Create causes a new save dialogue box to appear, assuming
GraphPlus has been shown a source CSV file. In this box is a drawfile,
which must be dragged to a filer window. Once this has been done,
graph creation takes place. GraphPlus multitasks whilst creating a
graph to the file, but whilst this happens the icon icon bar icon
becomes shaded so GraphPlus cannot be used.

Whilst a graph is being created a Status window appears to
display the progress of the processing. This window contains a menu
with a single entry;

    +-----------+
    | GraphPlus |
    +-----------+
    |  Faster   |
    +-----------+

if you select this the creation process is accelerated by making the
application single task.


4.0 GRAPH SPECIFIC FEATURES

Following are several points to note about the creatiopn of each graph
type.

4.1 LINE GRAPHS

The column specified in a group's map window refers to the group's x
coordinates. The y coordinates are assumed to be in the next column.
If you select 'colour under' for a data group it may obscure other
parts of the graph. The graph is created so that group one is
uppermost and group six underneath all the others. Thus to avoid this
obscuring parts of the graph, ensure the line to be coloured under is
in group six, or as high a group as necessary.

4.2 BAR CHARTS

The column specified in the map window refers to the column the bar
chart data is in. When producing a horizontal bar chart with more than
one data group, group one appears on the left hand side of any of the
other groups. When the chart is vertical it appears at the bottom.
When producing overlaid bar charts, if there are two groups which have
the same value on a bar, the bar will be extended to the right to
prevent one obscuring the other.

4.3 PIE CHARTS

One data group represents one pie chart. hence up to six pie charts
can be displayed at once. When only one pie chart is to be drawn, the
labels (i.e. text describing what each slice of pie represents) appear
around the chart, but if more than one pie chart is drawn, they appear
as a key on the right hand side. The 'key text' in the group map
window is written below each chart.

4.4 TABLES

Each data set represents a column of the table. Hence the table can
contain up to up to six columns. The 'key text' in the group map
window is used as a header for each column. There is no 3D table
option. 


5.0 ADVANCED GRAPHPLUS FEATURES

� You are not restricted to the six group limit imposed by GraphPlus,
  because it is possible to overlay one graph file onto another. This is
  done by telling GraphPlus to create a graph into a file that already
  exists. A query window will appear with options to overlay the graph
  or overwrite the file.

� If a fatal error should occur whilst a graph is being created then
  GraphPlus will dump a copy of the current template stored in it into
  the file TempDump in its directory, so that the graph setup can be easily
  re-entered afterwards.


6.0 CSV FILES

GraphPlus uses CSV files as its data input. They are a standard for
data exchange, and most spreadsheets and databases provide facilities
for saving data as a CSV file. Please refer to your spreadsheet or
database manual for instructions on how to generate CSV data.

6.1 WHAT IS A CSV FILE?

Imagine your data presented in a table. Now between each column put a
comma, and at the end of each row place a return. This is a CSV file.
A typical CSV file may look like figure 6.1 (note that spaces are
provided for clarity and are usually omitted). Note the final return,
which must not be omitted.

     Transfers,               43.6, 41.0 [RETURN]
     Defence,                 15.5, 10.7 [RETURN]
     NHS,                     7.9,  13.1 [RETURN]
     Education (LAs),         7.9,  9.6  [RETURN]
     Other final consumption, 13.8, 20.1 [RETURN]
     Investment,              11.4, 5.4  [RETURN]     figure 6.1

6.2 HOW DO I CREATE A CSC FILE?

Use the extra application supplied, CsvEdit. It allows you to enter
data as in a speadsheet without worrying about the internal structure
of the file.


7.0 EXAMPLES

A number of examples are provided with !GraphPlus, to illustrate its
use. They are located in the Examples directory. The template file
used to create them is supplied so that you can see how they were
created.

Example 7.1 is a 3D line graph, with no points plotted.

Example 7.2 is a 3D bar chart. When the offset function is selected on
a 2D graph the bars overlap slightly, however on a 3D graph, the
effect seen is obtained.

Example 7.3 is a 2D pie chart. There is no key entry below it because
the Key was disabled. As there is only one chart, labels appear around
it, whereas in example 7.4 a separate key is produced because there
are two pie charts. This later graph is a 3D compound pie charts with
the Key entry enabled, hence the text below each pie.

Finally, example 7.5 is a table. The key text entries appear along the
top of the table, and the labels down the side.

00000000  2b 2b 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |++--------------|
00000010  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2b 0a 7c 7c 20 20  |----------+.||  |
00000020  20 20 20 20 20 47 72 61  70 68 50 6c 75 73 20 20  |     GraphPlus  |
00000030  20 20 20 20 20 20 7c 0a  7c 7c 20 20 20 20 20 50  |      |.||     P|
00000040  65 74 65 20 47 6f 6f 64  6c 69 66 66 65 20 20 20  |ete Goodliffe   |
00000050  20 20 7c 0a 2b 2b 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |  |.++----------|
00000060  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2b 0a  |--------------+.|
00000070  7c 7c 20 20 20 20 20 20  20 20 4d 61 6e 75 61 6c  |||        Manual|
00000080  20 20 20 20 20 20 20 20  20 20 7c 0a 2b 2b 2d 2d  |          |.++--|
00000090  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
000000a0  2d 2d 2d 2d 2d 2d 2b 0a  0a 31 2e 30 20 49 4e 54  |------+..1.0 INT|
000000b0  52 4f 44 55 43 54 49 4f  4e 0a 0a 47 72 61 70 68  |RODUCTION..Graph|
000000c0  50 6c 75 73 20 69 73 20  61 20 64 65 73 6b 74 6f  |Plus is a deskto|
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00003680  20 20 44 65 66 65 6e 63  65 2c 20 20 20 20 20 20  |  Defence,      |
00003690  20 20 20 20 20 20 20 20  20 20 20 31 35 2e 35 2c  |           15.5,|
000036a0  20 31 30 2e 37 20 5b 52  45 54 55 52 4e 5d 0a 20  | 10.7 [RETURN]. |
000036b0  20 20 20 20 4e 48 53 2c  20 20 20 20 20 20 20 20  |    NHS,        |
000036c0  20 20 20 20 20 20 20 20  20 20 20 20 20 37 2e 39  |             7.9|
000036d0  2c 20 20 31 33 2e 31 20  5b 52 45 54 55 52 4e 5d  |,  13.1 [RETURN]|
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000036f0  28 4c 41 73 29 2c 20 20  20 20 20 20 20 20 20 37  |(LAs),         7|
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00003730  20 31 33 2e 38 2c 20 32  30 2e 31 20 5b 52 45 54  | 13.8, 20.1 [RET|
00003740  55 52 4e 5d 0a 20 20 20  20 20 49 6e 76 65 73 74  |URN].     Invest|
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00003780  65 20 36 2e 31 0a 0a 36  2e 32 20 48 4f 57 20 44  |e 6.1..6.2 HOW D|
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00003bc0  65 2e                                             |e.|
00003bc2

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