February 2012
Beginner to intermediate
220 pages
5h 8m
English
Content preview from gnuplot Cookbook
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Making a contour plot
A contour plot is a set of isolines, or curves where the function or data has a constant value, drawn in the plane of the independent variables (x and y in Cartesian coordinates). It is simpler than the surface plots covered in the previous recipes in that it doesn't require the interpretation of perspective or hidden line removal. As there is no z axis for reference, the value that each isoline represents is represented by an individual label or by giving each line its own dash pattern or color.
Certain types of patterns are better represented as surfaces, while for others, contours bring out more of the relevant characteristics. ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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