Day and night world map

**Jeffrey Jongmans** · Feb 1, 2014, 01:47

I added a "Day and Night World Map" to the Dawn-Dusk Times tiddler.

Just add this code:

Code:

<html><img src="http://www.timeanddate.com/scripts/sunmap.php?iso=<<today 'YYYY0MM0DDT0hh0mm'>>"></html>

It will render a map of the world with the actual day, twilight (civil, nautical and astronomical) and night areas with actual positions of Sun and Moon.

Cheers,

Jeffrey

**Dick Berg** · Feb 1, 2014, 03:31

That's really nifty! Thanks for sharing that.

EDIT:

Hi, Jeff,

I created a separate tiddler for this because I couldn't get the map to show below the table in the Dawn-Dusk Times tiddler.

Also, note that if you use width="100%" and omit height, the graphic will always adjust to the width of the browser's window. Also, I didn't see that the "<<today...>>" part did anything, so I omitted it, too.

Thanks again for posting this little gem.

EDIT #2:

It is possible to put the graphic below the table (which I think improves the look) by editing the dawndusk.asp script and putting the following lines near the very bottom:

Code:

...
Response.write("\n----\n");    
Response.Write("<html><img width='100%'  src='http://www.timeanddate.com/scripts/sunmap.php'></img></html>");
Response.write("\n----\n");    
Response.Write("//~~Contributed by Dick Berg, author of the [[ACP Reference Guide|http://solo.dc3.com/ar/ACPRefGuide.html]]~~//\n");
Response.Write("//^^Computational improvements by Robert Wahlstrom,  Erik Young, and Jeffrey Jongmans^^//");
%>

If that URL ever breaks or goes away, that will be a problem to fix then.

**Bob Denny** · Feb 1, 2014, 16:17

Wow!! Thanks!! Moving to the ACP Add-Ons section now.

Of course this could be put into a tiddler by itself too. The big problem is the damn MainMenu tiddler which needs to be edited to add a selection for other tiddlers. I hate "tiddler" too. I tried to rename it to "item" in ACP's docs, but peeking at the sources blows its cover.

**Jonas Grinde** · Feb 4, 2014, 19:14

Great work guys, very similar to the variant I'm using in my weather-display:

daynight.jpg

I've been using the chart from USNO together with a .png marker icon fixed at my observatory-location.

To make this available to the rest of you and also using the map Jeffrey posted, I've made some modifications to the dawndusk.asp.
It will read your observatory-coordinates from ACP and convert those to equirectangular X/Y coordinates compatible with the map-image, and place a red * symbol on the map along with the observatory name.

Code:

Response.write("\n----\n");
var MapX = (Math.round(-2+((Telescope.SiteLongitude+180)*(720/360))));
var MapY = (Math.round(20+(((Telescope.SiteLatitude*-1)+90)*(360/180))));
Response.Write("<html><style>");
Response.Write(".marker{position:relative;left:" + MapX + "px;top:" + MapY + "px;z-index:10;border:0px;opacity:1.00;}");
Response.Write(".map{position:relative;left:0px;top:0px;z-index:1;border:0px;}</style>");
Response.Write("<div class='marker'><font color=red><b>*</b></font> - " + Prefs.SiteName + "</div>");
Response.Write("<div class='map'><IMG SRC=http://www.timeanddate.com/scripts/sunmap.php border=0></div></html>");    
Response.Write("//~~Contributed by Dick Berg, author of the [[ACP Reference Guide|http://solo.dc3.com/ar/ACPRefGuide.html]]~~//\n");
Response.Write("//^^Computational improvements by Robert Wahlstrom, Erik Young, Jeffrey Jongmans and Jonas Grinde^^//");

Remove the following if you don't want your observatory name on the map next to the marker.

Code:

- " + Prefs.SiteName + "

newdaynight.jpg

Hope this works for the rest of you as well!

Best Regards
Jonas Grinde
http://www.grinderphoto.se

**Bob Denny** · Feb 4, 2014, 20:05

Jonas --

I physically deleted the (deleted) message from you and it seems to have deleted your images in the other one!! You can edit it and replace them. I apologize!!

**Dick Berg** · Feb 4, 2014, 20:59

Fantastic. I love it. What a great product ACP is that it can enable these enhancements so easily. Thanks, Jonas

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