Graphics library in C
To plot 2D and 3D graphs in C I would recommend the library DISLIN. You can see examples here or there. The code is pretty easy to use and gives nice results.
graphics
How to do ray tracing in modern OpenGL?
I would not advise to try actual ray tracing in OpenGL because you need a lot hacks and tricks for that and, if you ask me, there is not a point in doing this anymore at all. If you want to do ray tracing on GPU, you should go with any GPGPU language, such as … Read more
How to make graphics with transparent background in R using ggplot2?
Updated with the theme() function, ggsave() and the code for the legend background: Fastest way is using using rect, as all the rectangle elements inherit from rect: More controlled way is to use options of theme: To save (this last step is important):
how do I substitute one colour for another, in every object, of an eps file?
Here is one way to select all items of exactly the same colour (fill). It is also possible to look for other style categories, such as the stroke colour etc. 1) Imagine we wish to select all the orange items on the canvas. Select one of those and go to the Fill and Stroke dialog. … Read more
Drawing Hexagon Using Java error
You were drawing on the JFrame. Never draw on a JFrame. Always draw on a JPanel. Here’s the GUI. Here are the major changes I made. I moved the creation of the hexagon into its own class, Hexagon. That way, you can create a List of Hexagons if you want. I moved the creation of … Read more