It doesn't work that way.
You need to update every point of the polygon, and call map.Redraw.
I'm trying to update the position of a drawn OnlineMapsDrawingElement so it sticks to the player (LocationService).
I thought I had it with this code: https://forum.infinity-code.com/viewtop … 6536#p6536
using System;
using UnityEngine;
public class DrawCircleAroundPlayer : MonoBehaviour
{
/// <summary>
/// Radius of the circle
/// </summary>
public float radiusKM = 0.1f;
/// <summary>
/// Number of segments
/// </summary>
public int segments = 32;
private OnlineMapsMarker3DInstance onlineMapsMarker;
private OnlineMaps map;
private void Start()
{
map = OnlineMaps.instance;
onlineMapsMarker = GetComponent<OnlineMapsMarker3DInstance>();
name = onlineMapsMarker.marker.label;
DrawCircle();
}
/// <summary>
/// Draw circle around player with set radius
/// </summary>
private void DrawCircle()
{
// Get the coordinates under cursor
double lng = onlineMapsMarker.marker.position.x;
double lat = onlineMapsMarker.marker.position.y;
// Get the coordinate at the desired distance
double nlng, nlat;
OnlineMapsUtils.GetCoordinateInDistance(lng, lat, radiusKM, 90, out nlng, out nlat);
double tx1, ty1, tx2, ty2;
// Convert the coordinate under cursor to tile position
map.projection.CoordinatesToTile(lng, lat, 20, out tx1, out ty1);
// Convert remote coordinate to tile position
map.projection.CoordinatesToTile(nlng, nlat, 20, out tx2, out ty2);
// Calculate radius in tiles
double r = tx2 - tx1;
// Create a new array for points
OnlineMapsVector2d[] points = new OnlineMapsVector2d[segments];
// Calculate a step
double step = 360d / segments;
// Calculate each point of circle
for (int i = 0; i < segments; i++)
{
double px = tx1 + Math.Cos(step * i * OnlineMapsUtils.Deg2Rad) * r;
double py = ty1 + Math.Sin(step * i * OnlineMapsUtils.Deg2Rad) * r;
map.projection.TileToCoordinates(px, py, 20, out lng, out lat);
points[i] = new OnlineMapsVector2d(lng, lat);
}
// Create a new polygon to draw a circle
OnlineMapsDrawingElementManager.AddItem(new OnlineMapsDrawingPoly(points, Color.green, 3));
}
}however the circle stays in place (which is fairly logical since it's not really updated to follow the player).
I've tried to adjust the transform.position of the drawn circle with:
item.instance.transform.position = OnlineMapsTileSetControl.instance.GetWorldPosition(position);with the position coming for the "OnLocationChanged" event.
What am I doing wrong? How should I go about changing the position of the draw circle to follow the player?
I've tried setting the parent of the circle to the PlayerMarker, yet this also gives some weird behaviour.