void CreateLineVertices()
{
if (vertices == null)
{
vertices = new List <Vector3>(numPoints + 1);
}
else
{
vertices.Clear();
}
float elevationStart = 0, elevationEnd = 0;
if (usesViewport)
{
lineWidth *= 6.0f;
elevationStart = map.ComputeEarthHeight(path[0], false);
elevationEnd = map.ComputeEarthHeight(path[path.Length - 1], false);
}
Vector3 mapPos;
for (int s = 0; s <= numPoints; s++)
{
float t = (float)s / numPoints;
int index = (int)((path.Length - 1) * t);
int findex = Mathf.Min(index + 1, path.Length - 1);
float t0 = t * (path.Length - 1);
t0 -= index;
mapPos = Vector2.Lerp(path[index], path[findex], t0);
if (usesViewport)
{
if (map.renderViewportRect.Contains(map.Map2DToRenderViewport(mapPos)))
{
float elevation = Mathf.Lerp(elevationStart, elevationEnd, t);
elevation += arcElevation > 0 ? Mathf.Sin(t * Mathf.PI) * arcElevation : 0;
mapPos = map.Map2DToWorldPosition(mapPos, elevation, HEIGHT_OFFSET_MODE.ABSOLUTE_CLAMPED, false);
vertices.Add(mapPos);
}
}
else
{
if (arcElevation > 0)
{
mapPos.z = -Mathf.Sin(t0 * Mathf.PI) * arcElevation;
}
vertices.Add(mapPos);
}
}
}