GNUPLOT DASHED LINE PDF

The support for dashed lines has changed completely in version 5. Please read the Release Notes and the New Features section of the user manual. In brief: "dashed" is no longer a terminal keyword as you already noticed. Instead you can get dashed lines at any time by using the keyword "dashtype", short form "dt". So your test commands could be plot sin x dashtype 2, cos x dashtype 4 All linetypes default to solid, but if you want to make the linetype itself have a dashtype you can redefine it like this: set linetype 2 dashtype 2 linecolor "grey" linewidth whatever

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You can select this old behaviour via the command set colorsequence classic, but by default gnuplot version 5 uses a terminal-independent sequence of 8 colors. You can further customize the sequence of linetype properties interactively or in an initialization file. See set linetype. Several sample initialization files are provided in the distribution package. The current linetype properties for a particular terminal can be previewed by issuing the test command after setting the terminal type.

Successive functions or datafiles plotted by a single command will be assigned successive linetypes in the current default sequence. You can override this for any individual function, datafile, or plot element by giving explicit line prooperties in the plot command.

Examples: plot "foo", "bar" plot two files using linetypes 1, 2 plot sin x linetype 4 use linetype color 4 In general, colors can be specified using named colors, rgb red, green, blue components, hsv hue, saturation, value components, or a coordinate along the current pm3d palette. Gnuplot version 5 allows you to specify the dot-dash pattern independent of the line color. See dashtype. Colorspec Many commands allow you to specify a linetype with an explicit color.

For a list of the available names, see show colornames. An alpha value of 0 represents a fully opaque color; i. An alpha value of FF represents full transparency. Note: This convention for the alpha channel is backwards from that used by the "with rgbalpha" image plot mode in earlier versions of gnuplot.

The color palette is a linear gradient of colors that smoothly maps a single numerical value onto a particular color. Two such mappings are always in effect. See set cbrange. See also set colorbox. You can use either of these to select a constant color from the current palette.

This allows smoothly-varying color along a 3d line or surface. It also allows coloring 2D plots by palette values read from an extra column of data not all 2D plot styles allow an extra column. There are two special color specifiers: bgnd for background color and black. Background color Most terminals allow you to set an explicit background color for the plot.

The special linetype bgnd will draw in this color, and bgnd is also recognized as a color. Examples: This will erase a section of the canvas by writing over it in the background color set term wxt background rgb "gray75" set object 1 rectangle from x0,y0 to x1,y1 fillstyle solid fillcolor bgnd This will draw an "invisible" line along the x axis plot 0 lt bgnd Linecolor variable lc variable tells the program to use the value read from one column of the input data as a linetype index, and use the color belonging to that linetype.

This requires a corresponding additional column in the using specifier. Text colors can be set similarly using tc variable. This example uses to value in column -2 to draw each data set in a different line color. The extra column is interpreted as a bit packed RGB triple. If the value is provided directly in the data file it is easiest to give it as a hexidecimal value see rgbcolor. Alternatively, the using specifier can contain an expression that evaluates to a bit RGB color as in the example below.

Text colors are similarly set using tc rgbcolor variable. It is not necessary to place the current terminal in a special mode just to draw dashed lines. You can change the default for a particular linetype using the command set linetype so that it affects all subsequent commands, or you can include the desired dashtype as part of the plot or other command.

Syntax: dashtype N predefined dashtype invoked by number dashtype "pattern" string containing a combination of the characters dot. Examples: plot f x dt 3 use terminal-specific dash pattern 3 plot f x dt ".. Dot ". The command show dashtype will show both the original string and the converted numerical sequence. Linestyles vs linetypes A linestyle is a temporary association of properties linecolor, linewidth, dashtype, and pointtype.

It is defined using the command set style line. Once you have defined a linestyle, you can use it in a plot command to control the appearance of one or more plot elements. In other words, it is just like a linetype except for its lifetime. Whereas linetypes are permanent they last until you explicitly redefine them , linestyles last until the next reset of the graphics state. Examples: define a new line style with terminal-independent color cyan, linewidth 3, and associated point type 6 a circle with a dot in it.

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The default linetypes for a particular terminal can be previewed by issuing the test command after setting the terminal type. Most terminals also recognize the special linetype "bgnd" to mean a solid line in the background color. You can redefine the default linetype properties either interactively or via an initialization file. This allows you to customize the colors and other properties of the lines used by all gnuplot plotting commands.

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