ARROW COLOR

ARROW ... COLOR

Plot Control Command

Specifies the colors for arrows to appear on subsequent plots (as specified via the ARROW ... COORDINATES command) or arrows generated by the ARROW command. Up to 100 arrows can be specified with the ARROW COORDINATES command.

Dataplot provides two methods for specifying colors.
1. Colors can be defined by name (or by the corresponding index). Dataplot adopted it's named colors from the X11 project. Currently, 162 named colors and 100 levels of grayscale are supported. Grayscale can be specified with either G0, G1, ..., G100 (or -1, -2, ..., -100). Many older devices support only a limited number of colors. For these devices, unsupported colors will be mapped to one of the available colors. To specify a named color, see Syntax 1.

2. Most modern graphics devices support full RGB (RedBlueGreen) color. You can alternatively specify RGB colors by entering three integer values to represent the Red, Green and Blue components, respectively. These values should be in the range 0 to 255.

When setting the arrow color, Dataplot first checks if the device supports RGB colors. If not, the named color will be used. If the device does support RGB color, Dataplot will check if an RGB color has been specified. If yes, then that RGB color is used. If not, the named color will be used.

To see the list of supported named colors (with the associated index number), see

https://www.itl.nist.gov/div898/software/dataplot/refman1/ch11/homepage.htm

ARROW <id> COLOR <color>
where <id> is an arrow identifier (an integer number or parameter) in the integer range 1 to 100;
and where <color> is the desired color.

ARROW <id> RGB COLORS <red-1> <green-1> <blue-1>
where <id> is an arrow identifier (an integer number or parameter) in the integer range 1 to 100;
and     <red-1>, <green-1>, <blue-1> is a list of integer values that specifies the desired RGB arrow color.

Up to 100 such triplets of color values can be specified.

To turn off the RGB color, set the values to -1 (any negative value will work). Values greater than 255 will be set to 255.

ARROW 1 COLOR BLUE
ARROW 2 COLOR GREEN
ARROW 1 RGB COLOR 220 109 88

Arrows can be generated in two ways. You can use the ARROW COORDINATES command to place arrows on subsequent plots or you can use the ARROW command to generate one arrow immediately. The ARROW COLOR command is used to specify the color in either case. When the ARROW command is used, the color is set to the color of the first arrow (i.e., is 1).

An ARROW ... COLOR command with no arguments sets the arrow color to default; thus ARROW 1 COLOR with no arguments sets the color for arrow 1 to default. An ARROW ... COLOR command with no <id> refers to all 100 arrows; thus ARROW COLOR GREEN assigns the color green to all 100 arrows. Note also that ARROW COLOR with no <id> and no arguments sets the color to default for all 100 arrows.

All arrows are drawn with black lines.

None

PLOT	=	Generates a data or function plot.
ARROW COORDINATE	=	Generates arrows on subsequent plots.
ARROW PATTERN	=	Sets the line type for arrows.
ARROW THICKNESS	=	Sets the thickness for arrows.
REGION FILL	=	Sets the region fill switch for diagrammatic graphics.
HEIGHT	=	Sets height (= length of base) for arrow head.
WIDTH	=	Sets width (= distance from base to the tip) for the arrow head.
HW	=	Sets the height and width for the arrow head.
CHARACTER COLOR	=	Sets the colors for plot characters.
LINE COLOR	=	Sets the color for plot lines.
SPIKE COLORS	=	Sets the colors for plot spikes.
BAR FILL COLORS	=	Sets the colors for plot bar fills.
BAR PATTERN COLORS	=	Sets the colors for plot bar patterns.
BAR BORDER COLORS	=	Sets the colors for plot bar borders.
TITLE COLOR	=	Sets the color for plot title.
LABEL COLOR	=	Sets the color for plot labels.
LEGEND COLOR	=	Sets the color for plot legends.
BOX COLOR	=	Sets the color for plot boxes.
SEGMENT COLOR	=	Sets the color for plot segments.
FRAME COLOR	=	Sets the color for plot frame.
GRID COLOR	=	Sets the color for plot grids.
TIC COLOR	=	Sets the color for plot tics.
TIC LABEL COLOR	=	Sets the color for plot tic labels.
BACKGROUND COLOR	=	Sets the color for plot background.

Presentation Graphics

Pre-1987
2020/11: Support for RGB colors

 
LET X = DATA 1 2 3 4 5 6 7 8 9 10
LET Y = DATA 2 4 60 7 9 12 14 15 18 20
.
XLIMITS 1 10
XTIC OFFSET 1 1
YLIMITS 0 60
YTIC OFFSET 0 5
.
ARROW 1 COORDINATES 45 87 36 85
ARROW 1 COLOR BLACK
ARROW 2 COORDINATES 71 46 78 45
ARROW 2 COLOR G50
LEGEND 1 COLOR BLACK
LEGEND 2 COLOR G50
.
LEGEND 1 OUTLIER
LEGEND 2 LAST POINT
LEGEND 1 COORDINATES 47 86
LEGEND 2 COORDINATES 69 45
LEGEND 2 JUSTIFICATION RIGHT
.
PLOT Y X
    



.
LEGEND 1 RGB COLOR 175 238 238
LEGEND 2 RGB COLOR 220 20 60
ARROW 1 RGB COLOR 175 238 238
ARROW 2 RGB COLOR 220 20 60
.
PLOT Y X