How to get the world coordinates of Tile points?

Good day!
How to get the world coordinates of Tile corner points (hex point top)?




My code:

Code (CSharp):

1. Vector3Int Vector3IntPoint = new Vector3Int(4,8); // cell
2. Vector3 worldCenterPos = MyTileMap.CellToWorld(Vector3IntPoint);
3.  

worldCenterPos - this is center point?

 

Use something like OnDrawGizmos() to find out what that position really is. From there you can use the dimensions of the hexes to find what else you need.

 

You want to use new Vector3(4.5, 8.5) then use tilemap.CellToLocalInterpolated(Vector3 someInterpCell). This method takes a Vector3 instead of Vector3Int so you may specify that you want the center of the cell.

However, its drawback is that it returns the Local not World position. For a tilemap with a transform at (0,0,0) then the local position is the same as the world position. But when a tilemap is not zero-centered, then they diverge so keep that in mind.

That said, I've never worked with hex (I know my advice works for rectangular and isometric tilemaps), and there's a chance that (.5, .5) isn't the cell center for hex, so Kurt's suggestion of double checking with gizmos will tell you more information.

 

How do I get the top hex point?

Vector3(4.5, 8.5) - center.
Vector3(4.5, 8.999) - top point of 4x8 cell?

Maybe with the center and top points, we can rotate something to get the next hex points?

 

Use this (untested from memory):

Code (CSharp):

1. public class MousePrinter : MonoBehaviour
2. {
3.     public Tilemap tilemap; // assign tilemap thru Inspector, make sure its transform.position is (0,0,0)
4.     public Vector3 mousePosWorld;
5.     public Vector3Int mouseCell;
6.     public Vector3 mouseCellInterpolated;
7.  
8.     void Update()
9.     {
10.         mousePosWorld = Camera.main.ScreenToWorldPoint(Input.mousePosition);
11.         mouseCell = tilemap.WorldToCell(mousePosWorld);
12.         mouseCellInterpolated = tilemap.LocalToCellInterpolated(mousePosWorld); // this gives interpolated (Vector3) cellspace
13.     }
14. }

It's important to note I'm assuming world = local so (0,0,0) necessary for tilemap and all its parents' positions.

This should give you the cellspace positions of each of the corners of a the hex cell if you mouse over it. We translate from screenspace (the mouse) to worldspace (transforms) to cellspace (the hex grid).