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- Information is available on:
-
- What this software does
- Running the application
- The Iconbar Menu
- Entering Data
- Further help available
- ________________________________________
-
- 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
- ________________________________________
-
- This application provides interactive
- help when the !Help application is
- active.
- ________________________________________
-
- What this software does
-
- It allows the entry of the x and y
- values for a number of data, and the
- data may then be fit to
-
- a. best straight line
- b. best parabola
- c. a cubic spline curve
- d. a polynomial of order up to 6
-
- A number of options for obtaining
- various forms of hard copy exist
- (saving as a !Draw file, or printing via
- any standard RISC-OS printer driver).
-
- ________________________________________
-
- Running the application
-
- This software is fully RISC-OS
- compatible, and is multi-tasking. It can
- be run from the desktop in all the
- standard ways.
-
- Double clicking on the !GraphDraw icon
- in a directory viewer will install its
- icon on the icon bar.
-
- The application can also be started by
- double clicking on a GraphDraw file. In
- this case, besides the icon appearing on
- the icon bar, the edit window will be
- opened with the contents of the data
- file displayed, for further editing if
- necessary. A data file may also be
- dragged, either into the edit window, or
- to the iconbar icon. The data will be
- loaded, overwriting any data that had
- previously been entered.
- ________________________________________
-
- The Iconbar Menu
-
- Clicking with MENU on the 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
-
- 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 producing a graph grid for the
- graph may be chosen.
-
- 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 (or the window close icon)
- 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. (This option is NOT
- available when the application is
- running over econet). Note that the
- default file is saved within the
- !GraphDraw application, therefore, if
- the application is being run from a
- floppy disc, the filer may request the
- disc containing the !GraphDraw
- application to be inserted in the disc
- drive.
-
- Quit
- Terminates the GraphDraw. GraphDraw
- offers the chance to save any modified
- data before quitting.
- ________________________________________
-
- Entering Data
-
- Clicking SELECT on the GraphDraw iconbar
- icon will open an empty edit window,
- into which the pairs of x,y data may be
- entered. This version allows a maximum
- of 200 data point pairs.
-
- More extensive help is available from
- the edit window menu.
-
- ________________________________________
-
- Further Help
-
- Help windows similar to this one can
- also be accessed from the data editing
- window, and the graph window, with
- appropriate help and information for the
- particular context.
- ________________________________________
-
-