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EarthNavigator Active
Websites |
| You can
easily create EarthNavigator Active websites by simply
adding special tags to the HTML of your page. Some familiarity
with HTML is helpful to create these pages.
The
first step is to insert the comment
<!--EarthNavigator
Altitude="KM" Range="KM" -->
between the <Head> and </Head> tags of the
page. The EarthNavigator will recognize this comment and then check the remainder of the web page for
Active Place or Active Route tags.
The Altitude keyword is optional and is only
used if places on this web page have an altitude (such as
airplanes in flight). If it is used, then the Altitude keyword
specifies the units of measurement for the altitude of the
place.
The Range keyword is also optional and is used if
Active Places on this web page have
a range (a circle around a place indicating, for example, an area
of influence. If it is used, then the Range keyword
specifies the units of measurement for the radius of a circle
drawn around the
place.
Allowable Altitude and Range units include KM (kilometers), M (meters),
NM (nautical miles), MI (miles), YD (yards), and
FT (feet).
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| A few tools are available to assist in creating
Active Places and Active Routes, primarily consisting of copying text to the clipboard in
the Active HTML format.
The Copy menu option has a number of menu items to copy HTML to the clipboard. Or, you can click a visible
Place or Route layer from the Layers form of the
proram, right-click to show the menu and select the Copy Routes/Places To Clipboard
option. All routes or places in the selected layer and the associated URL text will be copied to the clipboard where you can then insert the text into the HTML of a
webpage.
You can also use the Find... dialog to
pinpoint the longitude and latitude of a place. When you have
found a place, right-click it to display a menu with two options which will copy
an HTML tag in Active HTML format to the clipboard, which you can then paste into your HTML.
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If you wish to insert
the  logo on your website, just
copy this HTML to your website.
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Creating Active Places |
| The
EarthNavigator recognizes two types of Active Place tags, anchor
and hidden. If you check the globe now (that is, if
you are using the EarthNavigator), you'll see two Active
Places, one of each type. |
| 1. Anchor Place tags: These are places which are associated with an
existing anchor <A> on your website.
For
example, if you click City
of Edmonton, a web site with information about this city is
displayed. If you view the globe, you will see an Active Place
where the City of
Edmonton is and you can also double-click on this place to display
the same web site.
The
HTML of this anchor tag is:
<a href="http://www.gov.edmonton.ab.ca/"
target="_blank"><!--EarthNavigatorAnchorPlace
Longitude="-113.51" Latitude="53.56"
Altitude="0" Range="20"-->City of Edmonton</a>
Note
that the HTML comment
<!--EarthNavigatorAnchorPlace
Longitude="-113.51" Latitude="53.56"
Altitude="0" Range="20"-->
has
been inserted within the tag (Altitude and Range are optional).
This HTML
comment, which has the longitude and latitude of the City of
Edmonton, is recognized by the EarthNavigator and
the Active Place is shown on the globe. If you zoom into the
City of Edmonton, you'll see that a circle with a radius of
20km is drawn around the City.
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| 2. Hidden Place tags: These are places which are not visible on your web
page but which are recognized by the EarthNavigator and
shown on the globe.
The
HTML for a hidden place is:
<!--EarthNavigatorHiddenPlace
Name="CALGARY" URL="http://www.gov.calgary.ab.ca"
Longitude="-114.06" Latitude="51.04"
Altitude="0" Range="30"-->
This
HTML comment includes the place name, a URL, and the longitude and
latitude of the City of Calgary. The comment must be inserted
between the <Body> and </Body> of the
page.
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Creating Active Routes |
| These are similar to Active Places except instead
of single point, they depict a route (or polyline joined by
a sequence of points). There are also two types of Active Routes; Anchor
and Hidden. |
1. Active Route tags: These are routes that are associated with an existing anchor
<A> or link on a website. An example of this type of tag is:
<a href="http://www.gov.edmonton.ab.ca/" target="_blank"> <!--EarthNavigatorAnchorRoute Points="6"
Range="30" 1="163.23 19.19" 2="178.24 33.27" 3="-159.18 36.88" 4="-149.57 23.41" 5="-151.41 1.3" 6="-151.41 1.3" -->City of Edmonton</a>
Note that the HTML comment
<!--EarthNavigatorAnchorRoute Points="6"
Range="30" 1="163.23 19.19" 2="178.24 33.27" 3="-159.18 36.88" 4="-149.57 23.41" 5="-151.41 1.3" 6="-151.41 1.3" -->
has been inserted within the tag. This HTML comment will display a route that has six (6) points, with the longitude and latitude of each point listed in order within the comment. The first point
1="163.23 19.19" is located at a longitude of 163.23 and a latitude of 19.19.
Note that the optional Range keyword is also permitted
for Active Routes, but in this case they indicate the radius (in
degrees) of an arc to be drawn between each point.
If the Range is 0, then a straight line is drawn between each
point. If the range is between 1 and 180, then a counterclockwise
arc is drawn between each point, If the range is between -1
and -180, then a clockwise arc is drawn between each point. |
2. Hidden Route tags: These are routes that are not visible on your web page but are recognized by the EarthNavigator and shown on the globe. The HTML for a hidden route is:
<!--EarthNavigatorHiddenRoute Name="CALGARY" URL="http://www.gov.calgary.ab.ca" Points="6" 1="163.23 19.19" 2="178.24 33.27" 3="-159.18 36.88" 4="-149.57 23.41" 5="-151.41 1.3" 6="-151.41 1.3"-->
This HTML comment includes the route name, a URL, and a route with six points. (Note that this is just an example and the longitude and latitude coordinates don't actually show a route specific to this location). |
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