tipo_de_macro=R2
id='B' expresin='0.25' evaluar='una-sola-vez' constante='si'
id='L' expresin='600' evaluar='una-sola-vez' constante='si'
id='H' expresin='20' evaluar='una-sola-vez' constante='si'
id='Rojo(s)' expresin='(s<L/2)+(s>=L/2)*(1-(s-L/2)/(L/2))'
id='Verde(s)' expresin='(s<L/2)*s/(L/2)+(s>=L/2)*(1-(s-L/2)/(L/2)*0.1)'
id='Azul(s)' expresin='0.1*(s>=L/2)*(s-L/2)/(L/2)'
id='AVANZAR' expresin='B>0.99'
id='RETROCEDER' expresin='B<0.01'
tipo='polgono' fondo='si' color='707070' expresin='(0,0)(L,0)(L,H)(0,H)(0,0)' coord_abs='si' 
tipo='segmento' fondo='si' color='(Rojo(s),Verde(s),Azul(s),0.0)' expresin='(s,1)(s,H-1)' familia='s' s.intervalo='[1,L-1]' s.pasos='L-2' tamao='0' coord_abs='si' 
tipo='polgono' color='grisObscuro' expresin='(B*L,0)(L,0)(L,H)(B*L,H)(B*L,0)' relleno='606080' coord_abs='si' 
