Thanks Zach, That simple little example makes more sense than the manual page did. Perhaps it's just late.
I appreciate it. Steven On Mon Apr 8 22:30:43 2013, Zachary Pincus wrote: >> I've got some verts I stole from the internet that draws an upward arrow >> (or a down arrow), but I need to draw an arrow to the right or to the >> left. But I don't really understand verts and how they work. >> >> arrowup_verts = [[0.,0.], [-1., -1], [0.,0.], [0.,-2.],[0.,0.], [1,-1]] >> arrowdown_verts = [[0.,0.], [-1., 1], [0.,0.], [0.,2.],[0.,0.], [1, 1]] >> >> plot them like... >> >> scatter(1,1,s=100, marker=None, verts=arrowup_verts) >> >> >> Can someone make me new verts for the right and left arrow? Then, maybe >> tomorrow, explain how I was supposed to know what to do. > > Draw a line from (0,0) to (-1, -1) on the X-Y plane, and then to (0,0) again, > and then continue so forth for all the (x,y) pairs in arrowup_verts. You will > notice they form a nice little arrow pointing up. (At some point in this > process, you should note that "verts" is short for "vertices". As in vertices > of a polygon or poly-line.) > > It would seem that the origin of the "verts" coordinate system is translated > to the (x,y) data position at which each marker is plotted. > > This should give you, I presume, sufficient information to figure out your > own left and right arrows, no? Or any other shape you should care to plot... > > Zach > > >> Thanks y'all >> >> Steven >> >> -- >> >> Steven Boada >> >> Doctoral Student >> Dept of Physics and Astronomy >> Texas A&M University >> bo...@physics.tamu.edu >> >> >> ------------------------------------------------------------------------------ >> Precog is a next-generation analytics platform capable of advanced >> analytics on semi-structured data. The platform includes APIs for building >> apps and a phenomenal toolset for data science. Developers can use >> our toolset for easy data analysis & visualization. Get a free account! >> http://www2.precog.com/precogplatform/slashdotnewsletter >> _______________________________________________ >> Matplotlib-users mailing list >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Steven Boada Doctoral Student Dept of Physics and Astronomy Texas A&M University bo...@physics.tamu.edu ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
