Hello, I have the following problem. I need to build an approximate phase portrait. To build curves, I use the jfreechart library, how to build several curves at once and build a coordinate axis with center (0; 0) and leave the camera on it? Suppose I, before adding points, check them for boundary values, but is it possible to install a camera on the center, with borders say, X (-10; 10) Y (-5; 5).

Thank.

enter image description here

  • It is very difficult to understand what you need, without your code and screenshots / images. Edit and add, please, your question so that you can help. - Denis
  • There, the code is not particularly needed) I just build isoclines, write points (x; y) into sheets. Now I want to build for example 50 curves. The question is what. 1) With the help of which library it is best and (faster (!)) To build them (I have already tried several options, but due to the lack of experience with such libraries, I did not come up with anything sensible). 2) How to display only the points that fall into the interval X є [10; -10] Y є [5; -5], but it turns out that the coordinate grid is plotted relative to the maximum Y and X. Thank you for the answer! - tavrida
  • I can’t give an answer to your question, but I can give a couple of comments. JFreeChart is not the easiest library, but pretty good and useful. When I needed to build more than 1000 splines and move their points, the brakes were noticed, in which case I transferred the graphics to the drawing on OpenGL (JOGL library). For your second question in the commentary, see the JFreeChart features better. - Denis

0