How to project Lat/Lon coordinates on a panorama image?

I have two sets of Latitude/Longitude coordinates.

The first one is the coordinates of an equirectangular panorama picture. The second one of a point in sight. So it is on the picture.

I need the x/y coordinates of the second point to draw it on the picture. In javascript.

Example equirectangular panorama picture and application (using bearing and distance instead of Lat/Lon coordinates):

http://www.diy-streetview.org/data/development/20100121/streetview-playerA.html?streetview=small/001sm.jpg

Hints: The horizon is half the hight of the image.

The camera was 2 meters above ground.

Image Direction is the middle of the image. Where it "looks to".

It's in the Netherlands, so a negative Altitude is no error. They are really below the waterline.

Skipp the camera hight and GP开发者_Go百科SAltitude when its to complicated.

A bit data:

001sm.jpg

GPSLatitude: 51.802104

GPSLongitude: 3.929393

GPSAltitude: 1.100000

GPS Image Direction = 260 degrees

002sm.jpg

GPSLatitude: 51.802082

GPSLongitude: 3.929200

GPSAltitude: -2.270000

GPS Image Direction = 265 degrees

003sm.jpg

GPSLatitude: 51.802082

GPSLongitude: 3.928986

GPSAltitude: -3.710000

GPS Image Direction = 275 degrees

004sm.jpg

GPSLatitude: 51.802104

GPSLongitude: 3.928771

GPSAltitude: -3.710000

GPS Image Direction = 270 degrees

Thanks,

Jan

janmartin AT diy-streetview DOT org