From: jeroen muskee <jeroen.muskee@hotmail.com>
To: <ntg-context@ntg.nl>
Subject: Fields and JS Calculations
Date: Sat, 21 Nov 2009 14:19:03 +0100 [thread overview]
Message-ID: <COL115-W796B2DA6FE002DDEEC322F8A00@phx.gbl> (raw)
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I want to calculate the pressure of a hydrostatic fluid column with p(psi)=0.052*density(lb/gal)*depth(ft)
I have created a form with fields to enter the input, but I need somehow to pass the information entered to the JS calculation to display the result.
How can you pass an entered field value to JS caluclation and show the result into another field.
Thanks
Jeroen
\setupcolors[state=start]
\setupinteraction[state=start]
\starttext
\definefield[textdensity] [line] [linedensity] [] []
\definefield[textdepth] [line] [linedepth] [] []
\definefield[textpressure] [line] [linepressure] [] []
\setupfield
[linedensity]
[label,frame,horizontal]
[frame=off]
[height=18pt,width=15em,align=middle,frame=off]
[height=18pt,width=20em,align=right,style=\tfx,,frame=on]
\setupfield
[linedepth]
[label,frame,horizontal]
[frame=off]
[height=18pt,width=15em,align=middle,frame=off]
[height=18pt,width=20em,align=right,style=\tfx,,frame=on]
\setupfield
[linepressure]
[label,frame,horizontal]
[frame=off]
[height=18pt,width=15em,align=middle,frame=off]
[height=18pt,width=20em,align=right,style=\tfx,,frame=on]
\startJScode{presscalc}
pressure=0.052*density*depth;
\stopJScode
Calculate the hydrostatic pressure in psi with p = 0.05194 x density x depth
\blank
\field[textdensity][Please enter Density (lb/gal):]
\blank
\field[textdepth][Please enter Depth (ft):]
\blank
\goto{Calculate Pressure}[JS(presscalc)]
\blank
\field[textpressure][Hydrostatic Pressure (psi):]
\stoptext
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next reply other threads:[~2009-11-21 13:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-21 13:19 jeroen muskee [this message]
2009-11-23 0:07 ` jeroen muskee
2009-11-23 13:08 ` Hans Hagen
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