Hello, here are the results of our Therion meeting yesterday; An idea would be to add the factor for density/size of symbols in the source code and adjust these variables in the map editor by a -density {} command in the mapeditor\area\options. Also a -diameter {} command for block points would allow to change block size of each point individually. #POINT BLOCK +size adjust (symbolsize) code metapost def p_blocks_UIS (expr pos,theta,sc,al)= symbolsize:=1.0u; %Factor*u; Factor=size of the blocks U:=(.5u,.5u); T:=identity aligned al rotated theta scaled sc shifted pos; pickup PenC; thdraw (.0symbolsize,.0symbolsize)--(1.0symbolsize,-.5symbolsize)--(0.0symbolsize,-1.5symbolsize)--(-1.0symbolsize,-1.0symbolsize)--cycle; thdraw (.5symbolsize,-.25symbolsize)--(1.0symbolsize,.5symbolsize)--(0.0symbolsize,1.5symbolsize)--(-0.5symbolsize,.5symbolsize); thdraw (.0symbolsize,.0symbolsize)--(.0symbolsize,.5symbolsize)--(-1.5symbolsize,.5symbolsize)--(-1.5symbolsize,-0.5symbolsize)--(-0.5symbolsize,-0.5symbolsize); enddef; endcode #AREA BLOCK +density adjust (distance) code metapost def a_blocks (expr p) = distance:=1; T:=identity; pickup PenC; path q, qq; q = bbox p; picture tmp_pic; uu := max(u, (xpart urcorner q - xpart llcorner q)/100, (ypart urcorner q - ypart llcorner q)/100); tmp_pic := image( for i = xpart llcorner q step distance*uu until xpart urcorner q: for j = ypart llcorner q step distance*uu until ypart urcorner q: qq := punked (((-.5uu,-.5uu)--(.5uu,-.5uu)--(.5uu,.5uu)--(-.5uu,.5uu)--cycle) randomized (uu/2)) rotated uniformdeviate(360) shifted ((i,j) randomized 1.0uu); if xpart (p intersectiontimes qq) < 0: thclean qq; thdraw qq; fi; endfor; endfor; ); clip tmp_pic to p; draw tmp_pic; enddef; endcode greetings, Stefan