Tim Michelsen wrote: > Hello, > I have a similar problem to: >> Suppose I plot a line from (0,0) to (1,1.5) to (2,2). Now I want to mark >> (1,1.5) with a green circle. How is that done? >
Your problem is not similar to the above; the problem above is solved with a simple call to "plot". > I am performing a curve fit and also showing a distribution in my plot. > In order to help the reader to evaluate the result I would like to draw > certain > boundaries (vertical and horizontal line). > While I am aware on how to draw such lines, I would like to know wheather > there > are some functions in matplotlib which help me to retrieve the coordinates > > a) at which two curves intersect > b) at which a distribution reaches a certain value? > I think this is strictly a computational problem, not a plotting problem, so I suggest you post the question to the numpy or scipy lists. Eric > Example: > How do I get the y-axis value which is reached by the green curve in > http://matplotlib.sourceforge.net/_images/histogram_demo_extended_021.png > a x-axis value of in 175? > > I could proably use a solver from numpy like > http://docs.scipy.org/doc/numpy/reference/generated/numpy.linalg.solve.html#numpy.linalg.solve > but if I plot a distribution, the equation of the envelove is unknown at the > first place. > > I'd appreciate your help or pointers to examples. > > Thanks a lot in advance, > Timmie > > > > ------------------------------------------------------------------------------ > SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, > Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW > http://p.sf.net/sfu/solaris-dev2dev > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
