Latitude Demonstration
 latDemo005view, link (63 KB, 675400) source (336 KB)Thu, 10 Feb 05, 9:34am CST 
Sun Path Diagram Maker
 sunPathDiagram003view, link (24.4 KB, 300310) source (750.5 KB)Fri, 13 Feb 04, 10:50am CST 
 

The html code for embedding this file is:

<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" WIDTH="300" HEIGHT="310" id="sunPathDiagram003" ALIGN=""> <PARAM NAME=FlashVars VALUE="str1=A&str2=B&str3=C&lat=41&initAz=240&initAlt=35"> <PARAM NAME=movie VALUE="http://physics.unl.edu/~astrodev/flashdev2/sunPathDiagram/sunPathDiagram003.swf"> <PARAM NAME=quality VALUE=high> <PARAM NAME=bgcolor VALUE=#000000> <EMBED src="http://physics.unl.edu/~astrodev/flashdev2/sunPathDiagram/sunPathDiagram003.swf" quality=high bgcolor=#000000 WIDTH="300" HEIGHT="310" NAME="sunPathDiagram003" ALIGN="" TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"></EMBED> </OBJECT>

where str1, str2, and str3 are the labels for the summer, equinox, and winter sun paths, respectively. lat is the latitude for the stickfigure. initAlt and initAz are optional parameters that define the orientation of the celestial sphere on initialization.

 
Sun and Moon Diagram Component
 sunAndMoonDiagram003view, link (26.4 KB, 600400) source (176 KB)Mon, 10 Oct 05, 10:16am CDT 
 

changes:

  • added an event handler: onViewerDirectionChanged
  • added the function getViewerDirection
  • added the functions getSunLocations and getMoonLocations

updated documentation

 
Vector Sketchpad
 vectorSketchpad017view, link (32.3 KB, 900650) source (392.5 KB)Fri, 27 Jan 06, 6:54pm CST 
 

Flashvars capability has been added - see notes. Note that unlike almost all movies I've made this swf does not rescale, so the height and width can be set to whatever you want in the html block without distorting the movie. The flashvars that make the example movie above are:

viewOnly=true
&showPanel=false
&gridOriginX=1.5u
&gridOriginY=4.5u

&tailX1=100
&tailY1=100
&headX1=300
&headY1=300

&tailX2=1u
&tailY2=1u
&headX2=3u
&headY2=5u
&color2=0000ff
&selectable2=true
&draggable2=true
&uAlpha2=40

&tailX3=3u
&tailY3=-2u
&xComp3=4u
&yComp3=2u
&color3=ffa050

&tailX4=3u
&tailY4=-2u
&angle4=135
&mag4=2u
&color4=a0a050

 
Lissajous Curve Explorer
 lissajous001view, link (21.6 KB, 850520) source (136 KB)Fri, 23 Mar 07, 4:33pm CDT 
 

Example parameters to draw a figure-eight are:

{width: 200, height: 60, a: 1, b: 2, delta: 1.5707963267949}

 
Figure Eight
 figureEight001view, link (21.5 KB, 850520) source (144 KB)Fri, 23 Mar 07, 5:17pm CDT