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dcheckoway
Linking to SkyVector
There used to be a "Link to SkyVector" page on your site (http://skyvector.com/link.html) that described how to render "thumbnail" maps and link to SkyVector using an airport identifier or lat/lon. As of some point in the recent past, the javascript and link that used to serve up Sectional charts now serves up Low-Altitude Enroute charts. Is there a way to control what type of chart is served? Here's an example of the javascript invocation: <script src="http://skyvector.com/perl/ad1?lat=28.1027527777778&lon=-80.6452569444444&s=3&c=skyvectorDiv&t=_new"></script> Can you let us know if there are new parameters required in order to control the type of chart served up? Thanks!
Dave
New Parameters

Dan,

Sorry about that. A last minute parameter rename wasn't very well thought out. For a while, we tried to make the old parameters match the new parameters, and didn't notice that we were overloading one of them.

So the new embedding code looks like this:

<div id="sv_597" style="width: 200px; height: 200px;"></div>
<script src="http://skyvector.com/api/lchart?ll=35.97,-112.15&s=3&c=sv_597"></script>

Notice that we no longer load a static .js file, we now serve up all the .js with one call.

The parameters are like this:

ll: latitude,longitude
s: scale or zoom. (1-10) 1=zoomed in, 10=zoomed out.
c: the id of the div to contain the chart.
i: (optional) specifies exactly which chart to load
t: (optional) specifies what type of chart to load, if unavailable it'll degrade to the most "similar"
v = VFR Sectional
t = VFR TAC
l = IFR Low Enroute
h = IFR High Enroute
a = IFR Area
c = Heli
g: (optional) target. The only allowed value is "_blank" (there is no _new)

Pro tip:
Place the div where you want it, place the script at the end of the document. That way the page won't pause rendering while the request is made.

Hope this helps. Please report any strange behavior, this is all new code.

-dave

dcheckoway
Muchas gracias
Thank you, sir! Works like a charm. I appreciate the note about the consolidated .js as well.
Dan Checkoway Founder, Weathermeister http://www.weathermeister.com
anonymous
Tangogps
Is there a way to link from Tangogps (which is an excellent open-source GPS software) ? I currently use the following link to get GoogleMaps in tangogps: http://mt1.google.com/vt/hl=en&x=%d&y=%d&z=%d&s=Galileo Is there a way to do the same with skyvector ? Thanks, - Yem
Dave
Projection imcompatibilities / Permitted use
Yem, What you describe is not possible for two reasons. First, TangoGPS uses Spherical Mercator Projection, which is compatible with OSM, Google, and Bing tiles. Aeronautical charts are in Lambert Conformal Conic Projection. In addition, each chart has its own projection parameters, and with some charts, the projection parameters change from edition to edition. With 184 different charts, you can see the problem. Secondly, SkyVector is ad supported. We take great pride in providing a quality service at a price everyone can appreciate, $0. We could not afford to do this if it weren't for the advertising revenue we collect. For this reason, we only allow 3rd party use of our tiles under a paying contract.
anonymous
Re: Projection imcompatibilities / Permitted use
After you mentioned it, that makes perfect sense. I sure greatly appreciate skyvector the way it currently is ! Very good job ! Thanks you, -Yem
anonymous
div id value problem
Is there a way to get the div id tag to accept a period in thevalue again (it used to work). Example div id="sv_42.800" It appears that currently, if there is a period in the div id value the chart won't display, this wasn't the case with the old linking code. This would be VERY helpful to display multiple charts on the same HTML page.
fholbert
Guys, What a mess! You didn't
Guys, What a mess! You didn't think though the changes before you made them? For years SkyVector has begged us to link our web pages to your site. There is no longer a link to do so? I really don't want to experiment with your new system, I want a simple link like before. If that's too much to ask let me know and I remove your map from all of my pages.
Frank Holbert http://160knots.com
Dave
Working now
A small change caused some of your links to stop working. I believe we've fixed it now. Please let us know if you still have any issues. I've given more detail in response to another of your questions here: http://skyvector.com/content/map-screen-blank#comment-474
fholbert
Will it ever work like it used too?
Are we going to see a simple link and tools to add your map to our pages? I'm not selling anything so I'd think you'd get the better half of that deal anyway. For the record I don't even know what a static JS file is. We don't all code software for a living!
Frank Holbert http://160knots.com
Dave
Hiding in plain sight.
So the reason the old "link to us" page is gone, is that we've integrated it into the map viewer. In the top right, there is a "Link" link. Click on it to reveal cut-and-paste links for Plain Text and Image Links. The Plain Text link also holds the flight plan, which makes it easy to share your flight plans via forum post or instant message. Another use of these links is to be able to "bookmark" flight plans. The Image link is almost identical to the old "chart snippets" except it lets you specify exactly the chart you want to place on your page. A subtle change, but it enables you to embed a snippet of a Helicopter chart or an odd chart like the Grand Canyon VFR chart on your web page. What I mean by the "static js file" is that using the old embedding code, there were 2 <script> tags, one was static and never changed (linkchart.js), the other was dynamic and changed every 28 days (ad1) to keep the chart current. Now there is just one. This should speed things up for your users. The old static file at http://skyvector.com/linkchart.js is now empty, so feel free to delete the link to it.
anonymous
div id value problem
Is there a way to get the div id tag to accept a period in thevalue again (it used to work). Example div id="sv_42.800" It appears that currently, if there is a period in the div id value the chart won't display, this wasn't the case with the old linking code. This would be VERY helpful to display multiple charts on the same HTML page.
Dave
Works now
Thanks for your feedback. Periods are allowed now. Previously, we were allowing any value, which was a very dangerous thing to do. We put a filter in place to strictly conform to W3C standards, which turned out to be too strict. In addition to letters, numbers, and underscores, we now allow spaces and periods. I should mention that there are lots of reasons not to use periods in div ids. The entire purpose of the id="sv_3242" was to allow for multiple chart snippets on a single page. The only requirement is that they be distinct from one-another. Thanks for using SkyVector!
anonymous
Dave, THANK YOU!!! What
Dave, THANK YOU!!! What fantastic "Customer Service", thanks for accepting (and implementing) feedback!
Steve Foley
Linking to a flight plan
Good Afternoon, I am the developer for an aviation related website and would like to be able to link to flight plans on your site. I have origina and destination zip codes and lat/lon available to build a url. If necessary, I could locate the nearest airport, but that could confuse things because we prefer to allow the pilot to pick the airports. Can you tell me if this is possible?
Dave
It is possible
Steve, If you create a flight plan on SkyVector, then hit the "Link" link, it will generate a simple URL (Plain Text Link) and an embeddable snippet. The plain text link contains the current flight plan. A little examination will reveal the format. Waypoints are separated by colons. A waypoint has a single character for type, 'A' is for airport, 'V' is for VOR, etc. Separated by periods the next two data elements are ICAO Region and ID. If you are just using latitude and longitude, you can define 'GPS' waypoints using the waypoint as 'G.45.1233,-120.3244' where lat comes first and both coordinates are given in decimal degrees. Hope this helps!
Steve Foley
I don't suppose I can use a
I don't suppose I can use a zip code as a waypoint, can I?
Steve Foley
I don't need zipcodes. I've
I don't need zipcodes. I've got it working with lat/lon. Check out http://www.pilotsnpaws.org/forum/viewtopic.php?f=5&t=5955 and click on "Flight Plan for this Transport"
Dave
Way to go!
Way to go!
lmcp03h
Changing the layers on Plain Text or Image Link
Is it possible to generate a link and control which layers are on and off? Example: - For one of my links, I want to center around the SFRA/FRZ and have it show the TFR layer, but not the weather layers. - For a different link, I want to have it zoomed out to show only only AIRMETs and SIGMETs, and not the TFR. Additionally it would be beneficial if "Image Link with Chart Snippet" had the ability to define which layers were visible on the image. Thanks, Joshua
Rocket305
Rocket305's picture
URL parameters
Is there a URL parameter to set ground speed for a flight plan? Thanx... Michael
Dave
No
We're working on flight planning that's completely different. When we're done we'll have all sorts of ways to link to a flight plan.