TerrainData class

Unity Engine
1

Hi,

i would like to measure the size of the terrain i’ve created…

how do i actually use the code?

var terrainData : TerrainData;
var heightmapWidth : int;

function Update()
{
  var viewPos = camera.WorldToViewportPoint( target.position);
  
   if(viewPos.x < TerrainData.heightmapWidth)
   {
        bla bla bla...
   }
}

but there is an error :
an instance type ‘UnityEngine.TerrainData’ is requried to access non stactic member ‘heightmapWidth’

hope there is someone that can help me =)
Thank you so much =)

2

Watch the capitalization…your variable is called terrainData but you’re referring to TerrainData in your code, which is a different thing. Also, heightmapWidth is the width of the heightmap in samples and doesn’t have anything to do with physical size. You want to use .size for that.

–Eric

3

oh okie…
thankz eric =)

but still it doesnt work…
i’ve an error on the

 if (viewPos.x < terrainData.size)

error:
Operator ‘<’ cannot be used with a left hand side of type ‘float’ and a right hand side type ‘UnityEngine.Vector3’

hmm…
if i need to move the camera…
and once the camera move out of the terrain…
it will stop…

is there anyway i can code it?

sorry for noob questions… =x[/quote]

4

As the error says, you can’t compare a float against a Vector3. You’d want to do something like “if (viewPos.x < terrainData.size.x)”.

–Eric

5

Thank you so much eric…

i’ve another question…sorry…

when i do according to your code…
selet the terrain into the TerrainData using the inspector…

it pops up another error…
says: Terrain not correctly connected to a terrainData object…

can i know…how to connect it properly?