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- <Chapter 11: Help>
- The entire ORCHIS manual is available for on-line viewing via the
- indexed HELP system. At any time, when you are using ORCHIS, you can press
- F1 to activate HELP. A new screen layout is then created containing four
- windows: a prompt window, a menu window, a graphic window and a document
- window. The document window displays a portion of the ORCHIS manual text.
- If there is an illustration accompanying the displayed text, it will
- appear in the graphic window. See the illustration <[FIG13]>.
-
- The HELP system is context sensitive. The portion of the document
- initially displayed depends on the state of ORCHIS when HELP is invoked.
- ORCHIS attempts to display the portion of the document relevant to your
- current operation. The choice depends on the current menu being displayed
- and on the last command executed.
-
- While the HELP system is active, the NumPad keys on the keyboard are
- detached from the cursor. (The cursor can only be moved via the mouse).
- Instead the NumPad keys control the text displayed in the document window.
- The up arrow (or left arrow) moves the displayed text backwards one line.
- The down arrow (or right arrow) moves the displayed text forward one line.
- PGUP and PGDN move the text display backwards or forwards one page. HOME
- and END position the text at the start and end of the current chapter,
- respectively.
-
- When the discussion at one place in the document refers to
- information located in a different section, there will often be a
- cross-reference mark in the HELP display at that place. This mark consists
- of a section number in square brackets displayed in red. If you have a
- mouse, you can access the referenced section by positioning the cursor on
- the cross-reference mark and pressing the left mouse button. This is
- called clicking on the reference. If you do not have a mouse, you can use
- the GOTO command <[11.8]> described below to display the new section.
-
- Illustrations appear in the document text as figure references. These
- are highlighted strings of the form "FIGxx" appearing in square brackets,
- where "xx" is the figure number. You can click on a figure reference to
- display that figure temporarily in the document window, pressing ESC when
- you want to restore the normal document display. The same operation can be
- performed with the ZOOM command <[11.9]> described below.
-
- <Section 11.1: Up>
- The UP command moves the document display backwards to display the
- previous page of document text. The same function can be invoked by
- pressing the page up key, PGUP. This command only moves within the
- currently displayed chapter. To move to another chapter use the GOTO
- command <[11.8]> described below.
-
- <Section 11.2: Top>
- The TOP command moves the document display to the top of the current
- chapter. The same function can be invoked by pressing the HOME key.
-
- <Section 11.3: Down>
- The DOWN command moves the document display forwards to display the
- following page of document text. The same function can be invoked by
- pressing the page down key, PGDN. This command only moves within the
- currently displayed chapter. To move to another chapter use the GOTO
- command <[11.8]> described below.
-
- <Section 11.4: Bottom>
- The BOTTOM command moves the document display to the bottom of the
- current chapter. The same function can be invoked by pressing the END key.
-
- <Section 11.5: Contents>
- The CONTENTS command displays the table of contents of the ORCHIS
- manual. There is one entry for each section of the manual. Each entry
- includes the section number and the section title. The HELP system treats
- the table of contents like any other chapter of the document. All of the
- HELP commands (UP, DOWN, SEARCH, REPEAT, etc.) are equally applicable to
- the table of contents. When you have located the section that you wish to
- consult, simply click on its section number in the table of contents to go
- to that section of the document. You can also use the GOTO command
- <[11.8]> described below to display that section.
-
- <Section 11.6: Search>
- With the SEARCH command you can search the current chapter (or table
- of contents) for the first occurrence of a given word. The search begins
- at the top of the current chapter. The search ignores the distinction
- between upper and lower case; either case of a letter counts as a match
- for that letter. If you want to find additional occurrences of the same
- word use the REPEAT command <[11.7]> described below.
-
- To operate the SEARCH command press the command letter, type in the
- word you want to search for and press ENTER. ORCHIS will locate the first
- occurrence of the string you typed, and will display it highlighted in red
- in the document window.
-
- The SEARCH command is particularly useful for searching the table of
- contents to find the sections referring to a particular topic. See the
- CONTENTS command <[11.5]> described above.
-
- <Section 11.7: Repeat>
- After you have used the SEARCH command <[11.6]> to find the first
- occurrence of a given word, you can use the REPEAT command to find
- subsequent occurrences of the same word within the current chapter. Press
- the command letter to locate the second occurrence. Continue pressing the
- command letter to find the third and subsequent occurrences.
-
- <Section 11.8: Goto>
- To display a particular chapter or section in the document window use
- the GOTO command. Press the command letter, then type in the desired
- section number and press ENTER. The designated section will be displayed
- in the document window.
-
- Section numbers consist of one, two, or three numbers separated by
- periods. For example, 10, 10.2, and 10.2.4 are possible sections numbers.
- The first number is the chapter number; the second is the section number
- and the third the sub-section number. To find the section number of the
- section that you want to consult, use the CONTENTS command <[11.5]> to
- display the table of contents of the manual.
-
- <Section 11.9: Zoom>
- The ZOOM command temporarily replaces the document window display
- with a magnified copy of the illustration displayed in the graphics
- window. Press the command letter a second time (or press ESC) to restore
- the document text display.