5.9.2.2 Drawing the Graph

Function: plot-column array x-column y-column proc3s

Plots points with x coordinate in x-column of array and y coordinate y-column of array. The symbol proc3s specifies the type of glyph or drawing style for presenting these coordinates.

The glyphs and drawing styles available are:

line

Draws line connecting points in order.

mountain

Fill area below line connecting points.

cloud

Fill area above line connecting points.

impulse

Draw line from x-axis to each point.

bargraph

Draw rectangle from x-axis to each point.

disc

Solid round dot.

point

Minimal point – invisible if linewidth is 0.

square

Square box.

diamond

Square box at 45.o

plus

Plus sign.

cross

X sign.

triup

Triangle pointing upward

tridown

Triangle pointing downward

pentagon

Five sided polygon

circle

Hollow circle

Function: plot-text-column array x-column y-column t-column proc3s

Plots text in t-column of array at x coordinate in x-column of array and y coordinate y-column of array. The symbol proc3s specifies the offset of the text from the specified coordinates.

The offsets available are:

above

Draws the text centered above at the point.

center

Draws the text centered at the point.

below

Draws the text centered below the point.

left

Draws the text to the left of the point.

right

Draws the text to the right of the point.

All the offsets other than center are calculated to keep the text clear of a glyph drawn at the same coordinates. If you need more or less clearance, use set-glyphsize.