yes, I think so. Just adjust the vector parameters to make it any size you
want.
On Mon, Oct 4, 2010 at 11:08 AM, Pshemak Maslak <p...@chem.psu.edu> wrote:
>
> On 10/1/2010 11:04 PM, Robert Hanson wrote:
> >
> > I lied. OK, see the JVXL file at
> >
> > http://stolaf.edu/people/hansonr/chemapps/jmol/docs/misc/cone.jvxl
> >
> > for a the surface z = sqrt(x^2 + y^2). Because it is a JVXL file, you
> > can go in and change the axes, change the scaling, change the origin,
> > etc., and have any cone you want. Even elliptical cones.
>
> Thank you very much for creating this nice cone. Can I change its
> opening angle directly in the jvxl file?
>
>
> >
> > This was created at
> >
> >
> http://chemapps.stolaf.edu/jmol/docs/examples-11/isosurface.htm?USSIGNEDAPPLET&topic=14
> > <
> http://chemapps.stolaf.edu/jmol/docs/examples-11/isosurface.htm?USSIGNEDAPPLET&topic=14
> >
> >
> > by entering
> >
> > Math.sqrt(x^2 + y^2) into the input box, clicking the link discussed
> > there to "set the function" and then issuing the following on the
> > command line:
> >
> > javascript "x0=-5;y0=-5;dx=.2;dy=.2";isosurface functionXY
> > "curveAsStringXY" {-5 -5 -5} {-51 0.2 0 0} {51 0 0.2 0} {51 0 0 0.2};
> >
> > followed by
> >
> > write isosurface "cone.jvxl"
>
> I tried that (under item 14, after zapping the preloaded model). I
> entered "Math.sqrt(x^2 + y^2)" into the box and clicked the "click here
> to set the function" link (confirmed by the message window). After
> entering the script (above) on the command line I am getting a very
> complicated "egg-box" shape.
>
> If I do not click on the "click here to set the function" link I get a
> half of an ellipsoid (a "cone" with parabolic cross-sections) with the
> above script..
>
> I am sure I am doing something wrong.
>
> All below is above my head (I speak no programming language :-(). And
> that is my problem.
>
> Thanks for your help,
>
> PM
>
>
> >
> >
> > That instructs Jmol to get the Z coordinate of the function from the
> > JavaScript function curveAsStringXY, which reads:
> >
> > function curveAsStringXY(app, nX, nY) {
> > var i1 = Math.abs(parseInt(""+nX));
> > var i2 = Math.abs(0.0 + parseInt(""+nY));
> > var s = ""
> > for (var i = 0; i < i1; i++)
> > for (var j = 0; j < i2; j++) {
> > s+= curveXY("",i, j) + "\n";
> > }
> > return s;
> >
> > }
> >
> >
> > x0 = 0
> > y0 = 0
> > dx = 1
> > dy = 1
> > x = 0
> > y = 0
> >
> > function curveXY(app, ix, iy) {
> > setXY(ix, iy)
> > return eval(myfunction);
> > }
> >
> > function setXY(ix, iy) {
> > x = ix * dx + x0
> > y = iy * dy + y0
> > }
> >
> >
> > function setFunction(f,isSilent){
> > myfunction =
> > (arguments.length<1?document.getElementById("fOfXY").value:f)
> > var x=1
> > var y=1
> > var z=NaN
> > try{eval("z="+myfunction)}catch(e){alert(e)}
> > if(isNaN(z)){
> > alert("Your function is invalid")
> > myfunction = "(x*x+y*y)"
> > }
> > try{curveXY("",1,1)}catch(e){alert(e);return}
> > if (!isSilent)alert("The function Jmol will use is now z=" +
> > myfunction)
> > }
> >
> > myfunction = "(x*x + y*y)/3"
> > setFunction(myfunction,1)
> >
> >
>
>
>
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--
Robert M. Hanson
Professor of Chemistry
St. Olaf College
1520 St. Olaf Ave.
Northfield, MN 55057
http://www.stolaf.edu/people/hansonr
phone: 507-786-3107
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
------------------------------------------------------------------------------
Virtualization is moving to the mainstream and overtaking non-virtualized
environment for deploying applications. Does it make network security
easier or more difficult to achieve? Read this whitepaper to separate the
two and get a better understanding.
http://p.sf.net/sfu/hp-phase2-d2d
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