CRISTAL Graph:

The Graph command provides seven presentation graph types for business and
scientific applications: Bar chart, Pie chart, Scatter plot, XY plot, 3D
bar chart, Equations, and 3D mesh grid. Each Graph selection requires
specification of full or quarter screen display, clear window or overlay,
graph heading, the cell block that contains the data to be graphed, and
labels for the [X] and [Y] axes (Pie chart requires labels for each data
wedge). Options permit the adjustment of the Width of lines, Line style,
Fill style, and the Color Palette.

Bar Chart:

Bar chart displays vertical bars to indicate the values in each of the
referenced worksheet cells.  The [Y] axis is automatically assigned a scale
according to the maximum value to be plotted. The width of the bars along
the [X] axis is adjusted according to the number of values to be graphed.

Pie Chart:

Pie chart displays data as proportioned wedges of a circle, with each data
value represented as a percentage of the total circle area.  Each wedge of
the Pie is assigned a specific label during the setup process.  A maximum
of ten data values is permitted. Colors for the wedges are set from the
Options (Color palette) submenu.

Scatter Plot:

Scatter plot displays the distribution of data values [Y axis] relative to
the total number of variables plotted [X axis].

XY Plot:

An [XY] plot displays data values as a set of [XY] coordinates from a cell
block that consists of two adjacent columns in the worksheet.  The first
column of the block contains the [X] coordinates, and the second contains
the [Y] coordinates.  If the cell block does not contain two columns, an
error message will result.

3D Bar Chart:

The 3D bar chart displays vertical 3D bars to indicate the values in each
of the referenced worksheet cells.  The [Y] axis is automatically assigned
a scale according to the maximum value to be plotted.  The width of the
bars along the [X] axis is adjusted according to the number of values to be
graphed and the line Width settings.

Equation:

Equation displays an XY plot of data as the result of a specified
mathematical equation [f(X)].  The begin, end, and increment values are
required input.  The results of the equation may be stored in a specified
location in the worksheet.

3D Mesh Grid:

The 3D Mesh Grid displays a surface plot of an XYZ coordinate set.  The
point set is generated by a cell block of three or more adjacent columns of
data.  The number of columns in the cell block represents the [X] axis, the
number of rows in the block represents the [Y] axis, and the data values in
each cell of the block represent [Z] coordinates.

Graph Options:

Options provides control of graphic settings for Width of line, Line style,
Fill style, and the Color palette.  The settings at this submenu level
apply only to graphing functions, and not to the Draw or Image functions. 
The default settings are controlled at the Graphic Options menu.  

Width of line provides control over the line weight for Graph functions. 
Width can be set a one of four alternatives: [1,2,4,8 units].

Line style provides control over the Line type for Graph functions.  Line
style can be set at one of three alternatives: [Continuous, Segment, Dot].

Fill style provides control over the fill options for Graph functions. 
Fill style can be set at one of four alternatives: [No fill, Dithered,
Grid, Solid fill].

Color palette controls the settings for the colors used in the Graph
functions.  The selections are made by specifying a color number [0-9], and
then picking the desired color from the color bar using the mouse.  Repeat
until all colors are specified.  Press [Esc] to exit, and the right mouse
button to return to the worksheet.  The Pie chart is the only Graph type to
use up to 10 colors.  The [0] color is used to illustrate the other Graph
types.

<gfile34> Appendix Two: CRISTAL Graphics and Image Processing