Shared colors and independent colorbar

1# BEGIN DEMO2# One physical color scale for nonuniform cells, contours and point colors.3page=canvas(size=(256 mm,132 mm),background="#ffffff")4s=plot_style(font_family="DejaVu Sans",font_size=7 pt)5colors=color_scale(norm= centered,vmin=-2,vmax=2,center=0,cmap=["#264b69","#f4f3ef","#a04725"])6a=plot(size=(82 mm,92 mm),plot_area=box(offset=(16 mm, 18 mm), size=(60 mm, 54 mm)),style=s,x=axis(label="x",range=(0,4),ticks=[0,2,4]),y=axis(label="y",range=(0,4),ticks=[0,2,4]))7a.heatmap(z=[[-2,-1,0,1],[-1,0,1,2],[0,1,2,1],[1,2,1,0]],x_edges=[0,0.5,1.5,3,4],y_edges=[0,1,2.5,3,4],color_scale=colors)8ca=page.add(a,offset=(2 mm,5 mm))9page.add(text(content="(a) Nonuniform cells",font_family="DejaVu Sans",font_size=9 pt),target=ca.plot_top_left,offset=(0 mm,-12 mm))10b=plot(size=(82 mm,92 mm),plot_area=box(offset=(16 mm, 18 mm), size=(60 mm, 54 mm)),style=s,x=axis(label="x",range=(0,4),ticks=[0,2,4]),y=axis(label="y",range=(0,4),ticks=[0,2,4]))11b.contourf(z=[[-2,-1,0,1,2],[-1,0,1,2,1],[0,1,2,1,0],[1,2,1,0,-1],[2,1,0,-1,-2]],x=[0,1,2,3,4],y=[0,1,2,3,4],levels=[-2,-1,0,1],color_scale=colors)12b.contour(z=[[-2,-1,0,1,2],[-1,0,1,2,1],[0,1,2,1,0],[1,2,1,0,-1],[2,1,0,-1,-2]],levels=[-1,0,1],color="#555555",line_width=0.3 pt)13cb=page.add(b,offset=(83 mm,5 mm))14page.add(text(content="(b) Grid contours",font_family="DejaVu Sans",font_size=9 pt),target=cb.plot_top_left,offset=(0 mm,-12 mm))15c=plot(size=(82 mm,92 mm),plot_area=box(offset=(16 mm, 18 mm), size=(60 mm, 54 mm)),style=s,x=axis(label="x",range=(0,4),ticks=[0,2,4]),y=axis(label="y",range=(0,4),ticks=[0,2,4]))16c.scatter(x=[0.5,1,1.5,2,2.5,3,3.5],y=[1,3,2,1,3,2,3],c=[-2,-1,0,1,2,1,-1],color_scale=colors,marker_size=[2 mm,3 mm,4 mm,5 mm,6 mm,4 mm,3 mm],opacity=[1,1,0.7,1,1,0.7,1],marker_border_color="#444444",marker_border_width=0.2 mm)17cc=page.add(c,offset=(164 mm,5 mm))18page.add(text(content="(c) Color, size, opacity",font_family="DejaVu Sans",font_size=9 pt),target=cc.plot_top_left,offset=(0 mm,-12 mm))19page.add(colorbar(scale=colors,orientation= horizontal,length=92 mm,ticks=[-2,-1,0,1,2],label=formula(source=r"\Delta E\;(\mathrm{eV})",font_size=9 pt),style=s),offset=(76 mm,101 mm))20# END DEMO