The xlabel, set in Line 5, uses the same /Symbol trick, this time to include the omegas (\(\omega\)). (Yes, I could have left-aligned the labels, but that leaves too much space between the label and the sample line.) This added whitespace equal to the width of “.0” to that label, making all the labels the same length. The plot was this:Īnd the Gnuplot commands that generated it were these: 1: set key at 4.25,5.5 box lw 1 height 1 spacing 3ĥ: set xlabel " to the end of it. I thought I’d do a short explanation of the techniques I used and why I usually make my plots a different way.Įxcept for the functions themselves and the ranges, the plots were made with the same set of commands, so we’ll just look at one of them. The labels style reads coordinates and text from a data file and places the text string at the corresponding 2D or 3D position.Yesterday’s post about accelerometers included two plots, both of which were made with Gnuplot. The most noticeable is probably a set of changes to make page layout of 3D plots after 'set view map splot. 3 or 4 input columns of basic data are required. ' more like the corresponding page layout of 2D plots, including display of x2 and y2 axis labels. Title and coordinate labels gnuplot> set xlabel 'Load' gnuplot> set ylabel 'Delay' gnuplot> plot 'data1' title 'Delay vs. Gnuplot development is tracked in a git repository on SourceForge. Additional input columns may be used to provide properties that vary point by point such as text rotation angle (keywords rotate variable) or color (see textcolor variable). If you want to rename the key it self, the instruction is provided here. The font, color, rotation angle and other properties of the printed text may be specified as additional command options (see set label). For labels of each axis, you have the command as follows: gnuplot> set xlabel. The example below generates a 2D plot with text labels constructed from the city whose name is taken from column 1 of the input file, and whose geographic coordinates are in columns 4 and 5. Understanding layers and locations on a graph Adding arrows, labels. The font size is calculated from the value in column 3, in this case the population. Arbitrary labels can be placed on the plot using the set label command. In this chapter, well discuss all the means that gnuplot offers to put ancillary. CityName(String,Size) = sprintf("", Scale(Size), String) Labels set label 1 : Creates a label whose ID is 1, so any reference to label 1 will resolve to this label. Important gnuplot commands: Graph titles: set title Your Title Between the Quotes. Printed label : The text of the label font. Axis labels: set xlabel X axis label Replace x with y for the. Plot 'cities.dat' using 5:4:(CityName(stringcolumn(1),$3)) with labels To place labels on the plot, use the set label command. If we did not want to adjust the font size to a different size for each city name, the command would be much simpler: plot 'cities.dat' using 5:4:1 with labels font "Times,8"set label at x,y,z where x,y and z are values in the graphs coordinate. If the labels are marked as hypertext then the text only appears if the mouse is hovering over the corresponding anchor point. In this case you must enable the label's point attribute so that there is a point to act as the hypertext anchor: plot 'cities.
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