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diff --git a/Master/texmf-dist/doc/latex/circuit-macros/examples/dpv/wormDPV.m4 b/Master/texmf-dist/doc/latex/circuit-macros/examples/dpv/wormDPV.m4
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+.PS
+# worm.m4
+ gen_init
+
+define(`svgcolor',`sprintf("rgb(%g,%g,%g)",`$1',`$2',`$3')')
+
+`define case { exec sprintf("$%g",floor($1+0.5)+1); }'
+
+`define hsvtorgb {
+ h_ = $1; s_ = $2; v_ = $3
+ f_ = h_/60-floor(h_/60)
+ p_ = v_*(1-s_)
+ q_ = v_*(1-f_*s_)
+ t_ = v_*(1-(1-f_)*s_)
+ case(pmod(floor(h_/60),6)+1,
+ $4 = v_; $5 = t_; $6 = p_,
+ $4 = q_; $5 = v_; $6 = p_,
+ $4 = p_; $5 = v_; $6 = t_,
+ $4 = p_; $5 = q_; $6 = v_,
+ $4 = t_; $5 = p_; $6 = v_,
+ $4 = v_; $5 = p_; $6 = q_)
+ $4 = int(($4)*255+0.5)
+ $5 = int(($5)*255+0.5)
+ $6 = int(($6)*255+0.5)
+ }'
+
+Worm: [
+ linethick_(0.1)
+ dimen = 1.25 # scale parameter; try dimen=2 for a larger picture
+ w = 0.15 * dimen # worm radius
+ nhues = 265
+ S: dimen,0
+ for inx = 1 to nhues +2 do {
+ theta = inx*360/nhues
+ R: dimen*cosd(3*theta), dimen*sind(2*theta)
+ D: R-(S.x,S.y)
+ t = sqrt(max(0,w^2/(D.x^2+D.y^2)-1/4))
+ Ra: 0.5<S,R> + (t*D.y,-t*D.x)
+ Rb: 0.5<S,R> - (t*D.y,-t*D.x)
+ if inx <= nhues then {
+ hsvtorgb(theta+120,1,1,r,g,b)
+ rgbfill( r,g,b,
+ arc cw from Ra to Rb rad w with .c at S
+ arc ccw from Rb to Ra rad w with .c at R )
+ } else {
+ arc cw from Ra to Rb rad w with .c at S
+ arc ccw from Rb to Ra rad w with .c at R }
+ S: R
+ }
+ ]
+
+ "svg_fsize(R,120)" at 0.9<Worm.se,Worm.ne> ljust
+ "svg_fsize(G,120)" at Worm.e ljust
+ "svg_fsize(B,120)" at 0.1<Worm.se,Worm.ne> ljust
+ "svg_fsize(Y,120)" at 0.1<Worm.sw,Worm.nw> rjust
+ "svg_fsize(M,120)" wid 0.2 at Worm.w rjust
+ "svg_fsize(C,120)" at 0.9<Worm.sw,Worm.nw> rjust
+ box invis ht Worm.ht wid Worm.wid+0.4 at Worm
+
+[ thicklines_
+ C: circle rad 1.5 at 0,0
+ smallrad = C.rad/2
+ for t=0 to 330 by 30 do {
+ line from Rect_(C.rad-0.05,90-t) to Rect_(C.rad+0.05,90-t)
+ sprintf("%g",t) at Rect_(C.rad+0.2,90-t)
+ }
+ "svg_fsize(R,120)" at Rect_(C.rad+0.45,90-0)
+ "svg_fsize(Y,120)" wid 0.2 at Rect_(C.rad+0.45,90-60)
+ "svg_fsize(G,120)" at Rect_(C.rad+0.45,90-120)
+ "svg_fsize(C,120)" at Rect_(C.rad+0.45,90-180)
+ "svg_fsize(B,120)" at Rect_(C.rad+0.45,90-240)
+ "svg_fsize(M,120)" at Rect_(C.rad+0.45,90-300)
+ linethick_(0)
+
+ for t = 1 to 90 do {
+ hsvtorgb(t/90*360,1,1,r,g,b)
+ line shaded svgcolor(r,g,b) outlined svgcolor(r,g,b) \
+ from C to Rect_(C.rad-0.05,90-(t-0.5)/90*360) \
+ then to Rect_(C.rad-0.05,90-(t+0.5)/90*360) \
+ then to C
+ }
+
+ R: circle diam C.rad at Rect_(C.rad*3/8,90) color "rgb(255,0,0)"
+ G: circle diam C.rad at Rect_(C.rad*3/8,-30) color "rgb(0,255,0)"
+ B: circle diam C.rad at Rect_(C.rad*3/8,-150) color "rgb(0,0,255)"
+
+ RG: cintersect(R,R.rad,G,G.rad)
+ GR: cintersect(R,R.rad,G,G.rad,R)
+ GB: cintersect(G,G.rad,B,B.rad)
+ BG: cintersect(G,G.rad,B,B.rad,R)
+ BR: cintersect(B,B.rad,R,R.rad)
+ RB: cintersect(B,B.rad,R,R.rad,R)
+
+# The following could be done other ways depending on the postprocessor
+`define lozenge {
+ arc from $1$2 to $2$1 with .c at $2
+ arc from $2$1 to $1$2 with .c at $1 }'
+
+# yellow
+linethick = 0.1; rgbfill(255,255,0,lozenge(R,G))
+linethick = 0.4; rgbdraw(255,255,0,lozenge(R,G))
+
+# cyan
+linethick = 0.1; rgbfill(0,255,255,lozenge(G,B))
+linethick = 0.4; rgbdraw(0,255,255,lozenge(G,B))
+
+# magenta
+linethick = 0.1; rgbfill(255,0,255,lozenge(B,R))
+linethick = 0.4; rgbdraw(255,0,255,lozenge(B,R))
+
+`define white {
+ arc cw from RB to GR with .c at R
+ arc cw from GR to BG with .c at G
+ arc cw from BG to RB with .c at B }'
+linethick = 0.1; rgbfill(255,255,255,white)
+linethick = 0.4; rgbdraw(255,255,255,white)
+setrgb(255,255,255)
+ line from RB to GR then to BG then to RB
+resetrgb
+
+] with .w at Worm.e+(0.5,0)
+
+.PE