Alain Baeckeroot wrote: > Le 23/07/2009 à 17:27, Hazen Babcock a écrit : >> Alain Baeckeroot wrote: >>> Dear all >>> >>> i 'd like to create my function for drawing the legend of graph, >>> i want to modify line width for the legend, and font color and reset >>> to previous value before exiting the legend function. so i need to know >>> current line width, line color >>> >>> I found no function that gives me this informations (no plg...) >>> Am i wrong ? >>> how could i get this information ? >> I believe you are correct. Could you describe the problem that you are >> facing a little more? In PLplot the defaults are just whatever they were >> last set to. I think that they start at plwid(1) with plcol0(0) as the >> background color and plcol0(1) as the foreground color. >> >> -Hazen >> > > I plot on the same graph Text and Tint, from octave : > > ... various settings including naming colors (blue = 9, green = 3) > > #TExt > plcol0(blue); > plwid (width); > plline(x, temper(:,text)); > legende(1, "T Ext", xmin, xmax, ymin, ymax); > > #Tint > plcol0(green); > plwid (width); # needed to set width again <----------------------- > plline(x, temper(:,tint)); > legende(2, "T Int", xmin, xmax, ymin, ymax); > > > > function legende ( num, text, xmin, xmax, ymin, ymax ) > ## draw legend on top left of the graph. > ## (or top right if xmin > xmax ....) > ## > dx = (xmax - xmin) / 20.; > dy = (ymax - ymin) / 20.; > > x(1) = xmin + dx; > x(2) = x(1) + 2 * dx; > xt = x(2) + dx; > > y(1) = ymax - num * dy; > y(2) = y(1); > yt = y(1); > > plwid ( 6 ); > plline (x', y'); > palette; # colormap with names for each color > plcol0(grey); # text is written in grey > plptex ( xt, yt, 0, 0, 0, text); > > endfunction > > > > > As i set width in legend, i need to set it again in the main loop. > Also i need to pass (xmin xmax ymin ymax) as i dont know how > to just say draw at x = 10% of window .... > > ideally i would like to have just : > legend (num, text) > and all other informations from some plgxyz inside legend function. > > I hope my explainations are clear enought this time :)
I think you should be able to get xmin, xmax, ymin and ymax using the function plgvpw(). At present the only way I can see to handle the width issue is to write a wrapper function for plwid() that saves the previous pen width so you can revert the width as necessary. -Hazen ------------------------------------------------------------------------------ _______________________________________________ Plplot-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/plplot-general
