private ICollection <BSPImage> PreparePhotos(IEnumerable <string> urls)
{
var items = new List <BSPImage>();
var count = urls.Count();
var size = (int)Math.Ceiling(Math.Pow(count, 1.0 / 3));
// TODO: Properly split BSP items in tree if they cross planes; then don't need to force even-valued sizez
if ((size & 1) == 1)
{
++size;
}
var offset = -(((double)size - 1) / 2);
var origin = new Vector3D(offset, offset, offset);
pending = 0;
var positions = new Dictionary <string, string>();
var rand = new Random();
foreach (var url in urls)
{
Point3D point;
string key;
do
{
point = new Point3D(
rand.Next(size),
rand.Next(size),
rand.Next(size));
key = point.X + "," + point.Y + "," + point.Z;
}while (positions.ContainsKey(key));
positions[key] = url;
var image = new BSPImage(point + origin, new Uri(url));
image.Loaded += delegate { if (Interlocked.Decrement(ref pending) < 1)
{
loading.Stop();
}
};
image.Failed += delegate { if (Interlocked.Decrement(ref pending) < 1)
{
loading.Stop();
}
};
image.Click += ItemClick;
image.WebClick += ItemWebClick;
items.Add(image);
}
pending = items.Count;
return(items);
}
private void SelectItem(BSPImage image)
{
if (selected == image)
{
image.Selected = false;
image.RefreshState();
selected = null;
to = from;
fromZ = camera.Position.Z;
toZ = -10;
slerp = 1;
jumpAngle = 0;
}
else
{
if (selected != null)
{
var oldImage = (BSPImage)selected;
oldImage.Selected = false;
oldImage.RefreshState();
}
image.Selected = true;
image.Visited = true;
image.RefreshState();
selected = image;
Point3D center = image.Position;
Vector3D dir = (Vector3D)center;
dir.Normalize();
Point3D viewpoint = center + (dir * image.ViewDistance);
var axis = Vector3D.CrossProduct((Vector3D)camera.Position, (Vector3D)viewpoint);
var angle = Vector3D.AngleBetween((Vector3D)camera.Position, (Vector3D)viewpoint);
to = (axis != new Vector3D())
? new Quaternion(axis, angle)
: new Quaternion(new Vector3D(0, 1, 0), angle);
to.Normalize();
toZ = -((Vector3D)viewpoint).Length;
slerp = 1;
jumpAngle = Vector3D.AngleBetween(
(Vector3D)camera.GetRotationMatrix().Transform(camera.Position),
(Vector3D)viewpoint);
}
}
private void SelectItem( BSPImage image )
{
if ( selected == image )
{
image.Selected = false;
image.RefreshState();
selected = null;
to = from;
fromZ = camera.Position.Z;
toZ = -10;
slerp = 1;
jumpAngle = 0;
}
else
{
if ( selected != null )
{
var oldImage = (BSPImage)selected;
oldImage.Selected = false;
oldImage.RefreshState();
}
image.Selected = true;
image.Visited = true;
image.RefreshState();
selected = image;
Point3D center = image.Position;
Vector3D dir = (Vector3D)center;
dir.Normalize();
Point3D viewpoint = center + ( dir * image.ViewDistance );
var axis = Vector3D.CrossProduct( (Vector3D)camera.Position, (Vector3D)viewpoint );
var angle = Vector3D.AngleBetween( (Vector3D)camera.Position, (Vector3D)viewpoint );
to = ( axis != new Vector3D() )
? new Quaternion( axis, angle )
: new Quaternion( new Vector3D( 0, 1, 0 ), angle );
to.Normalize();
toZ = -( (Vector3D)viewpoint ).Length;
slerp = 1;
jumpAngle = Vector3D.AngleBetween(
(Vector3D)camera.GetRotationMatrix().Transform( camera.Position ),
(Vector3D)viewpoint );
}
}
private ICollection<BSPImage> PreparePhotos( IEnumerable<string> urls )
{
var items = new List<BSPImage>();
var count = urls.Count();
var size = (int)Math.Ceiling( Math.Pow( count, 1.0 / 3 ) );
// TODO: Properly split BSP items in tree if they cross planes; then don't need to force even-valued sizez
if ( ( size & 1 ) == 1 ) ++size;
var offset = -( ( (double)size - 1 ) / 2 );
var origin = new Vector3D( offset, offset, offset );
pending = 0;
var positions = new Dictionary<string, string>();
var rand = new Random();
foreach ( var url in urls )
{
Point3D point;
string key;
do
{
point = new Point3D(
rand.Next( size ),
rand.Next( size ),
rand.Next( size ) );
key = point.X + "," + point.Y + "," + point.Z;
}
while ( positions.ContainsKey( key ) );
positions[ key ] = url;
var image = new BSPImage( point + origin, new Uri( url ) );
image.Loaded += delegate { if ( Interlocked.Decrement( ref pending ) < 1 ) loading.Stop(); };
image.Failed += delegate { if ( Interlocked.Decrement( ref pending ) < 1 ) loading.Stop(); };
image.Click += ItemClick;
image.WebClick += ItemWebClick;
items.Add( image );
}
pending = items.Count;
return items;
}