[OpenLayers-Users] Examples of redesign of Openlayers
Duarte Carreira
DCarreira at edia.pt
Mon Aug 20 09:46:02 EDT 2007
Espen,
Check this one:
http://www.cotr.pt/cotrinv/index.html
It's an inventory of irrigated areas that you can query and see results
on the map. It's in Portuguese. Uses OL and ArcIMS (WMS direct and
reflector script to process queries). Also uses TileCache for the base
layer.
Other libs include: old version of moo.fx for menu effects and ajax, and
json.js.
Regards,
Duarte
------------------------------
Message: 4
Date: Mon, 20 Aug 2007 09:18:37 +0200
From: "Espen Isaksen" <espen.isaksen at gmail.com>
Subject: [OpenLayers-Users] Examples of redesign of Openlayers
To: users at openlayers.org
Message-ID:
<a4cd3760708200018x131a6e68ne36712b0060a9923 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
I am looking for websites using openlayers which have fully integrated
it onto their site. Meaning that you cannot visually recognize that they
are using openlayers.
The only one I have seen is this one: http://www.opengeoportail.fr/
Any other examples?
------------------------------
Message: 5
Date: Mon, 20 Aug 2007 01:31:49 -0700 (PDT)
From: Prasad Choudhary <prasad.choudhary at gmail.com>
Subject: [OpenLayers-Users] function on zoom change
To: users at openlayers.org
Message-ID: <12232026.post at talk.nabble.com>
Content-Type: text/plain; charset=us-ascii
Hello All
I want to change layer's markers to lines and polygon after certain zoom
level is there any solution for this
Thanks All.
--
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------------------------------
Message: 6
Date: Mon, 20 Aug 2007 14:01:37 +0200
From: "Erik Uzureau" <erik.uzureau at metacarta.com>
Subject: Re: [OpenLayers-Users] Measure Distance? Ruler?
To: "Chris Hardin" <chrislhardin at gmail.com>
Cc: users at openlayers.org
Message-ID:
<6ae3fb590708200501x1110ba61g28fd894fd02db0b4 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I know that there is a ticket for this in TRAC... and there may or may
not be work underway to solve this.
I know also that there are some wierd math-heavy functions in the (i
believe) Util.js file which can be used to calculate distance between
points.
It has for a while been a (low) MetaCarta priority to add this
functionality to OpenLayers
erik
On 8/19/07, Chris Hardin <chrislhardin at gmail.com> wrote:
> I want to click a point and drag a line to another point on the map
> and a measurement be given. I could write this myself, but I was
> hoping there might already be something included or an add on I could
> use. Does anyone have any ideas?
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
>
------------------------------
Message: 7
Date: Mon, 20 Aug 2007 07:17:46 -0500
From: "Chris Hardin" <chrislhardin at gmail.com>
Subject: Re: [OpenLayers-Users] Measure Distance? Ruler?
To: "Erik Uzureau" <erik.uzureau at metacarta.com>
Cc: users at openlayers.org
Message-ID:
<44b0bbf60708200517h38808e23l2c846d2a15c28e17 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Yeah, the calculation involves a little trig. I figure it would be an
easy feature to add. I use the following .js file to calculate it, I
just need to figure out how to feed it the starting point and ending
point and draw a line.
var EARTH_MEAN_RADIUS_MILES = 3959.87247;
var EARTH_MEAN_RADIUS_KILOMETERS= 6372.797;
var EARTH_MEAN_RADIUS_KNOTS =3441.0351;
var EARTH_MEAN_RADIUS_FEET = 20908126.6;
var EARTH_MEAN_RADIUS_METERS = 6372796.99;
var EARTH_MEAN_RADIUS_YARDS = 6969375.53;
/*
* Use Haversine formula to Calculate distance (in km) between two
points specified by
* latitude/longitude (in numeric degrees)
*
* example usage from form:
* result.value = LatLon.distHaversine(lat1.value.parseDeg(),
long1.value.parseDeg(),
* lat2.value.parseDeg(),
long2.value.parseDeg());
* where lat1, long1, lat2, long2, and result are form fields
*/
LatLon.distHaversine = function(lat1, lon1, lat2, lon2, meanRadius) {
var R = meanRadius;
var dLat = (lat2-lat1).toRad();
var dLon = (lon2-lon1).toRad();
lat1 = lat1.toRad(), lat2 = lat2.toRad();
var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(lat1) * Math.cos(lat2) *
Math.sin(dLon/2) * Math.sin(dLon/2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
var d = R * c;
return d;
}
/*
* ditto using Law of Cosines
*/
LatLon.distCosineLaw = function(lat1, lon1, lat2, lon2, meanRadius) {
var R = meanRadius;
var d = Math.acos(Math.sin(lat1.toRad())*Math.sin(lat2.toRad()) +
Math.cos(lat1.toRad())*Math.cos(lat2.toRad())*Math.cos((lon2-lon1).toRad
()))
* R;
return d;
}
/*
* calculate (initial) bearing between two points
*
* from: Ed Williams' Aviation Formulary,
http://williams.best.vwh.net/avform.htm#Crs
*/
LatLon.bearing = function(lat1, lon1, lat2, lon2) {
lat1 = lat1.toRad(); lat2 = lat2.toRad();
var dLon = (lon2-lon1).toRad();
var y = Math.sin(dLon) * Math.cos(lat2);
var x = Math.cos(lat1)*Math.sin(lat2) -
Math.sin(lat1)*Math.cos(lat2)*Math.cos(dLon);
return Math.atan2(y, x).toBrng();
}
/*
* calculate destination point given start point, initial bearing
(deg) and distance (km)
* see http://williams.best.vwh.net/avform.htm#LL
*/
LatLon.prototype.destPoint = function(brng, d, meanRadius) {
var R = meanRadius; // earth's mean radius in km
var lat1 = this.lat.toRad(), lon1 = this.lon.toRad();
brng = brng.toRad();
var lat2 = Math.asin( Math.sin(lat1)*Math.cos(d/R) +
Math.cos(lat1)*Math.sin(d/R)*Math.cos(brng) );
var lon2 = lon1 +
Math.atan2(Math.sin(brng)*Math.sin(d/R)*Math.cos(lat1),
Math.cos(d/R)-Math.sin(lat1)*Math.sin(lat2));
if (isNaN(lat2) || isNaN(lon2)) return null;
return new LatLon(lat2.toDeg(), lon2.toDeg());
}
/*
* construct a LatLon object: arguments in numeric degrees
*
* note all LatLong methods expect & return numeric degrees (for
lat/long & for bearings)
*/
function LatLon(lat, lon) {
this.lat = lat;
this.lon = lon;
}
/*
* represent point {lat, lon} in standard representation
*/
LatLon.prototype.toString = function() {
return this.lat.toLat() + ', ' + this.lon.toLon();
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - */
// extend String object with method for parsing degrees or lat/long
values to numeric degrees
//
// this is very flexible on formats, allowing signed decimal degrees,
or deg-min-sec suffixed by
// compass direction (NSEW). A variety of separators are accepted (eg
3? 37' 09"W) or fixed-width
// format without separators (eg 0033709W). Seconds and minutes may be
omitted. (Minimal validation
// is done).
String.prototype.parseDeg = function() {
if (!isNaN(this)) return Number(this); // signed
decimal degrees without NSEW
var degLL = this.replace(/^-/,'').replace(/[NSEW]/i,''); // strip
off any sign or compass dir'n
var dms = degLL.split(/[^0-9.]+/); // split out
separate d/m/s
for (var i in dms) if (dms[i]=='') dms.splice(i,1); // remove
empty elements (see note below)
switch (dms.length) { // convert to
decimal degrees...
case 3: // interpret
3-part result as d/m/s
var deg = dms[0]/1 + dms[1]/60 + dms[2]/3600; break;
case 2: // interpret
2-part result as d/m
var deg = dms[0]/1 + dms[1]/60; break;
case 1: // decimal or
non-separated dddmmss
if (/[NS]/i.test(this)) degLL = '0' + degLL; // -
normalise N/S to 3-digit degrees
var deg = dms[0].slice(0,3)/1 + dms[0].slice(3,5)/60 +
dms[0].slice(5)/3600; break;
default: return NaN;
}
if (/^-/.test(this) || /[WS]/i.test(this)) deg = -deg; // take '-',
west and south as -ve
return deg;
}
// note: whitespace at start/end will split() into empty elements
(except in IE)
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - */
// extend Number object with methods for converting degrees/radians
Number.prototype.toRad = function() { // convert degrees to radians
return this * Math.PI / 180;
}
Number.prototype.toDeg = function() { // convert radians to degrees
(signed)
return this * 180 / Math.PI;
}
Number.prototype.toBrng = function() { // convert radians to degrees
(as bearing: 0...360)
return (this.toDeg()+360) % 360;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - */
// extend Number object with methods for presenting bearings & lat/longs
Number.prototype.toDMS = function() { // convert numeric degrees to
deg/min/sec
var d = Math.abs(this); // (unsigned result ready for appending
compass dir'n)
d += 1/7200; // add ? second for rounding
var deg = Math.floor(d);
var min = Math.floor((d-deg)*60);
var sec = Math.floor((d-deg-min/60)*3600);
// add leading zeros if required
if (deg<100) deg = '0' + deg; if (deg<10) deg = '0' + deg;
if (min<10) min = '0' + min;
if (sec<10) sec = '0' + sec;
return deg + '\u00B0' + min + '\u2032' + sec + '\u2033';
}
Number.prototype.toLat = function() { // convert numeric degrees to
deg/min/sec latitude
return this.toDMS().slice(1) + (this<0 ? 'S' : 'N'); // knock off
initial '0' for lat!
}
Number.prototype.toLon = function() { // convert numeric degrees to
deg/min/sec longitude
return this.toDMS() + (this>0 ? 'E' : 'W');
}
Number.prototype.toPrecision = function(fig) { // override
toPrecision method with one which displays
if (this == 0) return 0; // trailing zeros in
place of exponential notation
var scale = Math.ceil(Math.log(this)*Math.LOG10E);
var mult = Math.pow(10, fig-scale);
return Math.round(this*mult)/mult;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - */
On 8/20/07, Erik Uzureau <erik.uzureau at metacarta.com> wrote:
> I know that there is a ticket for this in TRAC... and there may or may
> not be work underway to solve this.
>
> I know also that there are some wierd math-heavy functions in the (i
> believe) Util.js file which can be used to calculate distance between
> points.
>
> It has for a while been a (low) MetaCarta priority to add this
> functionality to OpenLayers
> erik
>
> On 8/19/07, Chris Hardin <chrislhardin at gmail.com> wrote:
> > I want to click a point and drag a line to another point on the map
> > and a measurement be given. I could write this myself, but I was
> > hoping there might already be something included or an add on I
could
> > use. Does anyone have any ideas?
> > _______________________________________________
> > Users mailing list
> > Users at openlayers.org
> > http://openlayers.org/mailman/listinfo/users
> >
>
--
Chris Hardin
Software Architect
Archetype Corporation
------------------------------
Message: 8
Date: Mon, 20 Aug 2007 07:30:28 -0500
From: "Chris Hardin" <chrislhardin at gmail.com>
Subject: Re: [OpenLayers-Users] Weather Maps
To: "John Cole" <john.cole at uai.com>
Cc: users at openlayers.org
Message-ID:
<44b0bbf60708200530g7b74820bg995268a4957c8cb8 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I need something like an overlay over our maps to display weather,
wouldn't this just deliver me an entire map tile?
On 8/19/07, John Cole <john.cole at uai.com> wrote:
> The radar imagery at weather.gov has world files with it, so all you
need to
> do is download the file you want with wget or something, and serve it
via a
> wms server like mapserver. Works great.
>
> John
>
> -----Original Message-----
> From: users-bounces at openlayers.org
[mailto:users-bounces at openlayers.org] On
> Behalf Of Chris Hardin
> Sent: Sunday, August 19, 2007 4:16 PM
> To: users at openlayers.org
> Subject: [OpenLayers-Users] Weather Maps
>
> Does anyone know of a cheap way to add radar and satellite imagery
> layers to the maps?? I love the intellicast.com radar maps and I want
> to integrate something like that on a really tight budget.
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
>
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> 7:27 AM
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--
Chris Hardin
Software Architect
Archetype Corporation
------------------------------
Message: 9
Date: Mon, 20 Aug 2007 14:42:52 +0200
From: "Bart van den Eijnden (OSGIS)" <bartvde at osgis.nl>
Subject: [OpenLayers-Users] OpenLayers "wizard"
To: users at openlayers.org
Message-ID: <dc9031d46fb02d507326c1a4a695cd3b at 145.50.39.11>
Content-Type: text/plain; charset="iso-8859-1"
Hi list,
is there any interest in a wizard type of functionality, where users can
configure their personal settings of an OpenLayers application (which
tools
they want, which type of map navigation they want etc.)?
Also, this could be used as an application to quickly develop webmapping
clients based on OpenLayers for people who know nothing about
javascript.
Any ideas/thoughts appreciated.
Best regards,
Bart
--
Bart van den Eijnden
OSGIS, Open Source GIS
http://www.osgis.nl
------------------------------
Message: 10
Date: Mon, 20 Aug 2007 08:47:26 -0400
From: "Darren Cope" <darrencope at gmail.com>
Subject: Re: [OpenLayers-Users] OpenLayers "wizard"
To: "Bart van den Eijnden (OSGIS)" <bartvde at osgis.nl>
Cc: users at openlayers.org
Message-ID:
<10f4de780708200547xd8fa872j7e5ca459acb469ae at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi Bart,
Speaking as someone who knows nothing about javascript, yes, I would
find this very useful!
Cheers,
Darren
On 8/20/07, Bart van den Eijnden (OSGIS) <bartvde at osgis.nl> wrote:
> Hi list,
>
> is there any interest in a wizard type of functionality, where users
can
> configure their personal settings of an OpenLayers application (which
tools
> they want, which type of map navigation they want etc.)?
>
> Also, this could be used as an application to quickly develop
webmapping
> clients based on OpenLayers for people who know nothing about
javascript.
>
> Any ideas/thoughts appreciated.
>
> Best regards,
> Bart
>
> --
> Bart van den Eijnden
> OSGIS, Open Source GIS
> http://www.osgis.nl
>
>
>
>
>
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
>
--
Darren Cope
http://dmcope.freeshell.org
------------------------------
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