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) > > ------------------------------------------------------------------------------ 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 _______________________________________________ Jmol-users mailing list Jmol-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jmol-users
