For some simple but effective Python code you can use to create a mask similar to that provided by the Matlab roipoly function, see http://www.ariel.com.au/a/python-point-int-poly.html http://www.ariel.com.au/a/python-point-int-poly.html . The code seems to be quite effective.
Venkat Ramanan wrote: > > Hi, > > I'm looking for something analogous to Matlab's ginput() and roipoly(). > > ginput() basically displays a crosshair on the current figure and allows > us to select points by clicking on it. It returns the x,y coordinates of > the points. > > roipoly() allows us to define a polygon by clicking on the figure and > returns a logical matrix, where ones represent the insides of the > polygon and zeros outside. > > Any pointers are appreciated. > > I recently found matplotlib and started porting some of my Matlab > scripts to it. > > Ubuntu feisty (7.04), matplotlib 0.87.7. I can upgrade though. > > Thanks, > Venkat. > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: The Future of Linux Business White Paper > from Novell. From the desktop to the data center, Linux is going > mainstream. Let it simplify your IT future. > http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > -- View this message in context: http://www.nabble.com/Cross-hair-and-polygon-drawing-tools.-tp14199642p14626348.html Sent from the matplotlib - users mailing list archive at Nabble.com. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
