Marco, you are right. But the discussion is that Missouri mappers use number in box as point height. So by my meaning correct way should be to define new symbol set which will generate point height in sguare label. User definition is temporary solution in this case. Martin S.
24. 9. 2018 v 11:16, Marco Corvi via Therion <therion@speleo.sk>:
hi bruce,
this is a boxed u:label basically it gets the string as picture, its bounding box corners, and define the x and y to draw the box, then draw the string picture
point 10 20 u:label -attr val 20
def p_u_label ( expr p,r,s,t ) = picture pic; pic := thelabel( ATTR_val, (0,0)) scaled s; pair q[]; numeric n[], m[], v; path bb; v := defaultscale; qO = ulcorner pic; q1 = lrcorner pic; nO := ypart q0 + 2.5 * v; n1 := ypart q1 - 1.5*v; m0 := xpart q0 - v; m1 := xpart q1 + 1.5*v; bb := (m0,n0) -- (m0,n1) -- (m1,n1) -- (m1,n0) -- cycle; draw bb rotated r shifted p; draw pic rotated r shifted p; enddef
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