Dear&nbsp;CPMD&nbsp;users:<br>&nbsp;&nbsp;&nbsp;Does&nbsp;anyone&nbsp;has&nbsp;the&nbsp;experiences&nbsp;draw&nbsp;the&nbsp;2D&nbsp;plane&nbsp;contour&nbsp;from&nbsp;the&nbsp;file&nbsp;elpot&nbsp;<br>produced&nbsp;by&nbsp;the&nbsp;keyword&nbsp;ELECTROSTATIC&nbsp;POTENTIAL?&nbsp;I&nbsp;know&nbsp;the&nbsp;file&nbsp;can&nbsp;be&nbsp;display&nbsp;b<br>y&nbsp;converting&nbsp;it&nbsp;to&nbsp;the&nbsp;form&nbsp;of&nbsp;elpot.cube&nbsp;and&nbsp;using&nbsp;the&nbsp;VMD&nbsp;software,&nbsp;but&nbsp;I&nbsp;find&nbsp;<br>it's&nbsp;not&nbsp;clearly&nbsp;to&nbsp;see&nbsp;the&nbsp;potential.&nbsp;So&nbsp;I&nbsp;think&nbsp;it's&nbsp;better&nbsp;to&nbsp;draw&nbsp;it&nbsp;in&nbsp;the&nbsp;f<br>orm&nbsp;of&nbsp;2D&nbsp;plane&nbsp;contour&nbsp;perpendicular&nbsp;x,&nbsp;y,&nbsp;or&nbsp;z&nbsp;direction&nbsp;and&nbsp;I&nbsp;don't&nbsp;know&nbsp;how&nbsp;t<br>o&nbsp;get&nbsp;the&nbsp;datas&nbsp;I&nbsp;needed&nbsp;to&nbsp;finish&nbsp;it.&nbsp;Do&nbsp;I&nbsp;can&nbsp;export&nbsp;the&nbsp;data&nbsp;from&nbsp;the&nbsp;elpot.cu<br>be&nbsp;file&nbsp;or&nbsp;from&nbsp;the&nbsp;VMD&nbsp;Volumetric&nbsp;data&nbsp;in&nbsp;other&nbsp;methods?&nbsp;Does&nbsp;anyone&nbsp;has&nbsp;good&nbsp;id<br>eas&nbsp;on&nbsp;the&nbsp;question?<br>&nbsp;&nbsp;&nbsp;Another&nbsp;question&nbsp;is&nbsp;that&nbsp;what's&nbsp;the&nbsp;meaning&nbsp;of&nbsp;&quot;isovalue&quot;&nbsp;when&nbsp;I&nbsp;visualize&nbsp;the<br>&nbsp;Volumetric&nbsp;data&nbsp;in&nbsp;the&nbsp;form&nbsp;of&nbsp;isosurface?&nbsp;I&nbsp;find&nbsp;it&nbsp;shows&nbsp;different&nbsp;shapes&nbsp;in&nbsp;t<br>he&nbsp;different&nbsp;isovalue?&nbsp;So&nbsp;how&nbsp;can&nbsp;I&nbsp;get&nbsp;the&nbsp;appropriate&nbsp;isovalue?<br>&nbsp;&nbsp;&nbsp;Thanks&nbsp;in&nbsp;advance!<br>&nbsp;&nbsp;&nbsp;Best&nbsp;wishes!<br>&nbsp;&nbsp;&nbsp;shyma<br>