Hi, Bill Thoen, I go to the website and find the formulary I want. As
following:
Point(s) known distance from a great circle
Let points A and B define a great circle route and D be a third point. Find
the points on the great circle through A and B that lie a distance d from D,
if they exist.
A
On Fri, May 01, 2009 at 03:10:47PM -0600, Bill Thoen wrote:
> Just trying to debug a box drawing routine, I got this error:
>
> *this.getViewPortPxFromLonLat is not a function*
>
> on Line #746 in file: http://mydomain.com/ol/OpenLayers.js
>
> What I did to produce it was this (I'm just taking a
Hi,
If anyone knows if Openlayers has any function to calculate the Tiff file ?
double pixelHeight = (topLeftPoint.Y - lowerRightPoint.Y) / imageSize.Height;
double pixelWidth = (lowerRightPoint.X - topLeftPoint.X) / imageSize.Width;
I have done it before in c#. So openlayers has any utility
Users,
I am having trouble with my Openlayers map. I have a mapfile that I am
trying to view inside of Openlayers. I feel like I am doing every thing
right but all I am getting to show up inside of Openlayers is a white image.
Below I will include both my map file and my openlayers html file. Any
Just trying to debug a box drawing routine, I got this error:
*this.getViewPortPxFromLonLat is not a function*
on Line #746 in file: http://mydomain.com/ol/OpenLayers.js
What I did to produce it was this (I'm just taking a valid coordinate,
converting it to a pixel and the trying to convert tha
Never mind, I think I got it. You don't use 'new' with these functions.
Bill Thoen wrote:
> Just trying to debug a box drawing routine, I got this error:
>
> *this.getViewPortPxFromLonLat is not a function*
>
> on Line #746 in file: http://mydomain.com/ol/OpenLayers.js
>
> What I did to produce it
I have another newbie question here. Has anyone implemented a way
to detect a right-click on a feature (SelectFeature.js)? I currently pop up
a menu when the user clicks on a feature but I'd like to display a different
menu upon right click. Any ideas? Has anyone gone down this path?
Dear Chris,
I am actually using php at my backend is ok I will try to
figure out how to convert your given javascript function. So this function
is sufficient rite to decide in meters ? Thank you.
Chris Adams wrote:
>
> Here is a JavaScript code which will calculate the distance in
Here is a JavaScript code which will calculate the distance in meters. The
points are (lon1, lat1) and (lon2, lat2)
var R = 6371*1000; // m
var dLat = (lat2-lat1).toRad();
var dLon = (lon2-lon1).toRad();
var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(lat1.toRad()) * Math.cos(lat2
Dear Chris,
My data is in Latitude/Longitude. Ok I have used the java
sample code giving in the exercise. Only thing now I need to confirm is that
what is distance output in wat format ? Thank you.
Chris Adams wrote:
>
> For the second part, you use this equation first, to find 'u
On Fri, May 01, 2009 at 09:49:42AM +0100, Peter Robins wrote:
> On Thursday 30 Apr 2009, Christopher Schmidt wrote:
> > On Thu, Apr 30, 2009 at 09:34:23AM +0100, Peter Robins wrote:
> > > On Wednesday 29 Apr 2009, Christopher Schmidt wrote:
> > > > On Wed, Apr 29, 2009 at 09:03:24AM +0100, Peter Ro
Hi,
I have found a much easier way to create a circle.
There is a function in OpenLayers to do that. Works ike this:
var circle =
OpenLayers.Geometry.Polygon.createRegularPolygon(feature.geometry,
1, 50)
layer.addFeatures(new OpenLayers.Feature.Vector(circle));
the function expects 4 parame
On Thursday 30 Apr 2009, Christopher Schmidt wrote:
> On Thu, Apr 30, 2009 at 09:34:23AM +0100, Peter Robins wrote:
> > On Wednesday 29 Apr 2009, Christopher Schmidt wrote:
> > > On Wed, Apr 29, 2009 at 09:03:24AM +0100, Peter Robins wrote:
> > > > I've been having a bizarre problem where the same
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