// Use this for initialization
void Start()
{
cloudContainer = pointCloudContainer.GetComponent <RenderedCloudContainer>();
drawer = GetComponent <Drawer>();
inputField = filePathInputObject.GetComponent <InputField>();
subsampleDropDown = subsampleDropDownObject.GetComponent <Dropdown>();
features = new List <GameObject>();
drawer.width = 10f;
}
private GameObject GetPositionOnSurface(Ray ray, PointCloud cloud, Vector3 cameraPos, out int xIndex, out int yIndex, out float zIndex)
{
xIndex = 0;
yIndex = 0;
zIndex = 0;
RenderedCloudContainer container = pointCloudContainer.GetComponent <RenderedCloudContainer>();
// TODO: Need a KD Tree or something to speed up this O(n^2) solution:
Vector3 p00 = container.GetPointObject(0, 0).transform.position;
Vector3 p11 = container.GetPointObject(1, 1).transform.position;
p00.y = 0;
p11.y = 0;
float distThreshold = Vector3.Distance(p00, p11) / 2f;
// Get points close to ray
List <Point> points = new List <Point>();
for (int y = 0; y < container.Height; y++)
{
for (int x = 0; x < container.Width; x++)
{
float dist = Vector3.Cross(ray.direction, container.GetPointObject(x, y).transform.position - ray.origin).magnitude;
if (dist < distThreshold)
{
points.Add(container.GetPointCloudPosition(x, y));
}
}
}
// Debug.Log("Selected Points:" + points.Count);
// foreach (var p in points)
// {
// Debug.Log(string.Format("({0}, {1})", p.X, p.Y));
// }
if (points.Count == 0)
{
return(null);
}
// Order Points by closest to camera
points = points.OrderBy(o => Vector3.Distance(container.GetPointObject(o.X, o.Y).transform.position, cameraPos)).ToList();
xIndex = points[0].X;
yIndex = points[0].Y;
return(container.GetPointObject(points[0].X, points[0].Y));
}
public void DrawCloud(PointCloud cloud, int scalingFactor, Transform parent)
{
RenderedCloudContainer container = parent.gameObject.GetComponent <RenderedCloudContainer>();
container.ResetCloud(cloud.Width / scalingFactor, cloud.Height / scalingFactor);
float offset = width / (cloud.Width - 1);
float scale = 0.25f * 32f / cloud.Width * scalingFactor;
Vector3 scaleVec = new Vector3(scale, scale, scale);
for (int yi = 0; yi < cloud.Height; yi += scalingFactor)
{
for (int xi = 0; xi < cloud.Width; xi += scalingFactor)
{
GameObject point = Instantiate(pointPrefab, new Vector3(xi * offset, cloud.Get(xi, yi) * offset, yi * offset), Quaternion.identity);
point.name = string.Format("point ({0}, {1})", xi, yi);
point.transform.parent = parent;
point.transform.localScale = scaleVec;
container.SetPoint(point, xi / scalingFactor, yi / scalingFactor, xi, yi, cloud.Get(xi, yi));
}
}
}
