From: Eric Emsellem <emsellem@ob...>  20060519 10:12:22

Hi again, I am trying to see if I could produce a scatter plot (using "scatter" or "plot") but using NEW symbols (so not already available in the list provided). I would like to design new symbols (in some way which is to be defined) so that scatter and/or plot would be able to use them. Examples: horizontal or vertical or even rotated ellipses, icon sketched galaxylooking symbols, ... Any hint on how to do this? thanks in advance for any help here! Eric P.S.: I already posted a similar question a few days ago, so forgive me for this repetition...  ==================================================================== Eric Emsellem emsellem@... Centre de Recherche Astrophysique de Lyon 9 av. CharlesAndre tel: +33 (0)4 78 86 83 84 69561 SaintGenis Laval Cedex fax: +33 (0)4 78 86 83 86 France http://wwwobs.univlyon1.fr/eric.emsellem ==================================================================== 
From: Eric Emsellem <emsellem@ob...>  20060519 15:20:11

<!DOCTYPE html PUBLIC "//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO88591" httpequiv="ContentType"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> great!<br> <br> a quick one then: how would you then do to have a marker symbols where some part of the polygon is not attached to the rest (a vertical line plus an ellipse for example). I could do that using two different markers and plotting them one after the other, but is there a simpler way?<br> <br> thanks<br> Eric<br> <br> John Hunter wrote: <blockquote cite="mid87y7wy5cn1.fsf@..." type="cite"> <blockquote type="cite"> <blockquote type="cite"> <blockquote type="cite"> <blockquote type="cite"> <blockquote type="cite"> <pre wrap="">"Eric" == Eric Emsellem <a class="moztxtlinkrfc2396E" href="mailto:emsellem@..."><emsellem@...></a> writes: </pre> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> <pre wrap=""><!> Eric> Hi again, I am trying to see if I could produce a scatter Eric> plot (using "scatter" or "plot") but using NEW symbols (so Eric> not already available in the list provided). I would like to Eric> design new symbols (in some way which is to be defined) so Eric> that scatter and/or plot would be able to use them. Eric> Examples: horizontal or vertical or even rotated ellipses, Eric> icon sketched galaxylooking symbols, ... Eric> Any hint on how to do this? Eric> thanks in advance for any help here! Eric> Eric P.S.: I already posted a similar question a few days Eric> ago, so forgive me for this repetition... persistence wins the day! I added an option to scatter to support custom markers. You pass in a list if x,y vertices for the polygon you want to use as the marker. I haven't quite worked out the scaling yet, so for now use scale arguments that look right and understand that this may change when we get the scaling issue cleaned up. I added an example to svn revision 2402 examples/scatter_custom_symbol.py. Here it is, using an ellipse from pylab import figure, nx, show # unit area ellipse rx, ry = 3., 1. area = rx * ry * nx.pi theta = nx.arange(0, 2*nx.pi+0.01, 0.1) verts = zip(rx/area*nx.cos(theta), ry/area*nx.sin(theta)) x,y,s,c = nx.rand(4, 30) s*= 10**2. fig = figure() ax = fig.add_subplot(111) ax.scatter(x,y,s,c,marker=None,verts =verts) show() One thing we can do to make this more user friendly is to add new symbols to the scatter symbol table, eg 'wellipse' : a wide ellipse 'tellipse' : a tall ellipse and map names to sequences of vertices. So as you create the custom symbols you want to use, send them to me and I'll add them to the defaults, where appropriate. Cheers, JDH </pre> </blockquote> <br> <pre class="mozsignature" cols="72"> ==================================================================== Eric Emsellem <a class="moztxtlinkabbreviated" href="mailto:emsellem@...">emsellem@...</a> Centre de Recherche Astrophysique de Lyon 9 av. CharlesAndre tel: +33 (0)4 78 86 83 84 69561 SaintGenis Laval Cedex fax: +33 (0)4 78 86 83 86 France <a class="moztxtlinkfreetext" href="http://wwwobs.univlyon1.fr/eric.emsellem">http://wwwobs.univlyon1.fr/eric.emsellem</a>; ==================================================================== </pre> </body> </html> 
From: John Hunter <jdhunter@ac...>  20060519 15:43:41

>>>>> "Eric" == Eric Emsellem <emsellem@...> writes: Eric> great! a quick one then: how would you then do to have a Eric> marker symbols where some part of the polygon is not Eric> attached to the rest (a vertical line plus an ellipse for Eric> example). I could do that using two different markers and Eric> plotting them one after the other, but is there a simpler Eric> way? thanks Eric Just use the brute force approach for now, and when I get some time I'll look into generalizing this for general paths. JDH 
From: Nicolas Gruel <gruel@as...>  20060519 16:31:41

Hi, it seems that there are a bug in numerix with numarray (it's working fine w= ith=20 numpy) and the random array package. $ python scatter_custom_symbol.py Traceback (most recent call last): File "scatter_custom_symbol.py", line 9, in ? x,y,s,c =3D nx.rand(4, 30) AttributeError: 'module' object has no attribute 'rand' humufr@...:~/tmp/Python/SCIPY/matplotlib/matplotlib/examples N. Le Friday 19 Mai 2006 10:10, John Hunter a =E9crit=A0: > >>>>> "Eric" =3D=3D Eric Emsellem <emsellem@...> writes: > > Eric> Hi again, I am trying to see if I could produce a scatter > Eric> plot (using "scatter" or "plot") but using NEW symbols (so > Eric> not already available in the list provided). I would like to > Eric> design new symbols (in some way which is to be defined) so > Eric> that scatter and/or plot would be able to use them. > Eric> Examples: horizontal or vertical or even rotated ellipses, > Eric> icon sketched galaxylooking symbols, ... > > Eric> Any hint on how to do this? > > Eric> thanks in advance for any help here! > > Eric> Eric P.S.: I already posted a similar question a few days > Eric> ago, so forgive me for this repetition... > > persistence wins the day! > > I added an option to scatter to support custom markers. You pass in a > list if x,y vertices for the polygon you want to use as the marker. > > I haven't quite worked out the scaling yet, so for now use scale > arguments that look right and understand that this may change when we > get the scaling issue cleaned up. > > I added an example to svn revision 2402 > examples/scatter_custom_symbol.py. Here it is, using an ellipse > > from pylab import figure, nx, show > > # unit area ellipse > rx, ry =3D 3., 1. > area =3D rx * ry * nx.pi > theta =3D nx.arange(0, 2*nx.pi+0.01, 0.1) > verts =3D zip(rx/area*nx.cos(theta), ry/area*nx.sin(theta)) > > x,y,s,c =3D nx.rand(4, 30) > s*=3D 10**2. > > > fig =3D figure() > ax =3D fig.add_subplot(111) > ax.scatter(x,y,s,c,marker=3DNone,verts =3Dverts) > > show() > > One thing we can do to make this more user friendly is to add new > symbols to the scatter symbol table, eg > > 'wellipse' : a wide ellipse > 'tellipse' : a tall ellipse > > and map names to sequences of vertices. So as you create the custom > symbols you want to use, send them to me and I'll add them to the > defaults, where appropriate. > > Cheers, > JDH > > >  > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with preintegrated technology to make your job > easier Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > http://sel.asus.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat= =3D121642 > _______________________________________________ > Matplotlibusers mailing list > Matplotlibusers@... > https://lists.sourceforge.net/lists/listinfo/matplotlibusers 
From: John Hunter <jdhunter@ac...>  20060519 16:35:24

>>>>> "Nicolas" == Nicolas Gruel <gruel@...> writes: Nicolas> Hi, it seems that there are a bug in numerix with Nicolas> numarray (it's working fine with numpy) and the random Nicolas> array package. Nicolas> $ python scatter_custom_symbol.py Traceback (most recent Nicolas> call last): File "scatter_custom_symbol.py", line 9, in ? Nicolas> x,y,s,c = nx.rand(4, 30) AttributeError: 'module' object Nicolas> has no attribute 'rand' Nicolas> humufr@...:~/tmp/Python/SCIPY/matplotlib/matplotlib/examples Fixed in svn  thanks. JDH 
From: Eric Emsellem <emsellem@ob...>  20060519 16:47:34

<!DOCTYPE html PUBLIC "//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO88591" httpequiv="ContentType"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> I think there is a bug with the new verts because it cannot then use "scales" with len(scales)=1.:<br> <br> /usr/lib/python2.4/sitepackages/matplotlib/axes.py in scatter(self, x, y, s, c, marker, cmap, norm, vmin, vmax, alpha, linewidths, faceted, verts, **kwargs)<br> 3072 #scales = sqrt(scales * self.figure.dpi.get() / 72.)<br> 3073 if len(scales)==1:<br> > 3074 verts = [s[0]*verts]<br> <br> Eric<br> <br> <br> John Hunter wrote: <blockquote cite="mid87y7wy5cn1.fsf@..." type="cite"> <blockquote type="cite"> <blockquote type="cite"> <blockquote type="cite"> <blockquote type="cite"> <blockquote type="cite"> <pre wrap="">"Eric" == Eric Emsellem <a class="moztxtlinkrfc2396E" href="mailto:emsellem@..."><emsellem@...></a> writes: </pre> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> <pre wrap=""><!> Eric> Hi again, I am trying to see if I could produce a scatter Eric> plot (using "scatter" or "plot") but using NEW symbols (so Eric> not already available in the list provided). I would like to Eric> design new symbols (in some way which is to be defined) so Eric> that scatter and/or plot would be able to use them. Eric> Examples: horizontal or vertical or even rotated ellipses, Eric> icon sketched galaxylooking symbols, ... Eric> Any hint on how to do this? Eric> thanks in advance for any help here! Eric> Eric P.S.: I already posted a similar question a few days Eric> ago, so forgive me for this repetition... persistence wins the day! I added an option to scatter to support custom markers. You pass in a list if x,y vertices for the polygon you want to use as the marker. I haven't quite worked out the scaling yet, so for now use scale arguments that look right and understand that this may change when we get the scaling issue cleaned up. I added an example to svn revision 2402 examples/scatter_custom_symbol.py. Here it is, using an ellipse from pylab import figure, nx, show # unit area ellipse rx, ry = 3., 1. area = rx * ry * nx.pi theta = nx.arange(0, 2*nx.pi+0.01, 0.1) verts = zip(rx/area*nx.cos(theta), ry/area*nx.sin(theta)) x,y,s,c = nx.rand(4, 30) s*= 10**2. fig = figure() ax = fig.add_subplot(111) ax.scatter(x,y,s,c,marker=None,verts =verts) show() One thing we can do to make this more user friendly is to add new symbols to the scatter symbol table, eg 'wellipse' : a wide ellipse 'tellipse' : a tall ellipse and map names to sequences of vertices. So as you create the custom symbols you want to use, send them to me and I'll add them to the defaults, where appropriate. Cheers, JDH </pre> </blockquote> <br> <pre class="mozsignature" cols="72"> ==================================================================== Eric Emsellem <a class="moztxtlinkabbreviated" href="mailto:emsellem@...">emsellem@...</a> Centre de Recherche Astrophysique de Lyon 9 av. CharlesAndre tel: +33 (0)4 78 86 83 84 69561 SaintGenis Laval Cedex fax: +33 (0)4 78 86 83 86 France <a class="moztxtlinkfreetext" href="http://wwwobs.univlyon1.fr/eric.emsellem">http://wwwobs.univlyon1.fr/eric.emsellem</a>; ==================================================================== </pre> </body> </html> 
From: John Hunter <jdhunter@ac...>  20060519 16:51:41

>>>>> "Eric" == Eric Emsellem <emsellem@...> writes: Eric> I think there is a bug with the new verts because it Eric> cannot then use "scales" with len(scales)=1.: Eric> /usr/lib/python2.4/sitepackages/matplotlib/axes.py in Eric> scatter(self, x, y, s, c, marker, cmap, norm, vmin, vmax, Eric> alpha, linewidths, faceted, verts, **kwargs) 3072 #scales = Eric> sqrt(scales * self.figure.dpi.get() / 72.) 3073 if Eric> len(scales)==1: > 3074 verts = [s[0]*verts] Fixed in svn 2404  thanks. JDH 
From: John Hunter <jdhunter@ac...>  20060519 14:16:02

>>>>> "Eric" == Eric Emsellem <emsellem@...> writes: Eric> Hi again, I am trying to see if I could produce a scatter Eric> plot (using "scatter" or "plot") but using NEW symbols (so Eric> not already available in the list provided). I would like to Eric> design new symbols (in some way which is to be defined) so Eric> that scatter and/or plot would be able to use them. Eric> Examples: horizontal or vertical or even rotated ellipses, Eric> icon sketched galaxylooking symbols, ... Eric> Any hint on how to do this? Eric> thanks in advance for any help here! Eric> Eric P.S.: I already posted a similar question a few days Eric> ago, so forgive me for this repetition... persistence wins the day! I added an option to scatter to support custom markers. You pass in a list if x,y vertices for the polygon you want to use as the marker. I haven't quite worked out the scaling yet, so for now use scale arguments that look right and understand that this may change when we get the scaling issue cleaned up. I added an example to svn revision 2402 examples/scatter_custom_symbol.py. Here it is, using an ellipse from pylab import figure, nx, show # unit area ellipse rx, ry = 3., 1. area = rx * ry * nx.pi theta = nx.arange(0, 2*nx.pi+0.01, 0.1) verts = zip(rx/area*nx.cos(theta), ry/area*nx.sin(theta)) x,y,s,c = nx.rand(4, 30) s*= 10**2. fig = figure() ax = fig.add_subplot(111) ax.scatter(x,y,s,c,marker=None,verts =verts) show() One thing we can do to make this more user friendly is to add new symbols to the scatter symbol table, eg 'wellipse' : a wide ellipse 'tellipse' : a tall ellipse and map names to sequences of vertices. So as you create the custom symbols you want to use, send them to me and I'll add them to the defaults, where appropriate. Cheers, JDH 