Determining center of plot

This may sound dumb (I'm new at building in SL), but how do I find the exact center of my plot? I am not on flat land; I have a small island and the sides of it slope down and outward into a canal. My property lines are actually down in the canal.

At the risk of sounding obvious, you want to find the coordinates of all four corners to find the length of your sides, then find the middle of those.

If your four corners are as follows:

10,25
40,25
10,75
40,75

You can figure out that your plot is 30m (40-10) by 50m (75-25), and your middle point is at 25 (10+(30/2)), 50 (25+(50/2)).


Obviously, it may be off a little based if you don't have a perfectly rectangular plot. But without knowing the full precise dimensions, this method ought to do it.

Place a prim at each of the corners of your land, and select them all. You'll see three numbers at the top center of the screen. Those are the XYZ coordinates of the center of your selection. Since the corners of the selection are the same as the corners of the land, the center will also be the same.

Chosen Few and Jacques,

Thanks - those are good suggestions. I do have posts I placed at each corner as close as I could without going over the property line. Unfortunately, they aren't nice round numbers; they are things like 64.329. Maybe I'll have to try to move them to get round numbers, but I'm afraid of going over the property line and having them kicked back into my inventory. I do have the red property line boundaries option showing, so that helps. I've just been eyeballing it, and dragging them around. I'm wondering if there is a better way to determine the exact numbers.

Sorry, but these figures are not feasible. All property lines are exact multiples of 4 M. That is why the minimum size is 4 x 4 = 16 sq m. So 64.329 would actually be 64 M. You can tell these numbers just by walking over the corners and watching the first two fo the three numbers at the top of your screen. Remember your four times tables!

If you think about a sim being 256 x 256, the Western and Southern edges would be 0, and 256 would be the 0 of the next sim. So your lower Western and Southern cooridinates would be whole numbers (really like integers), and the higher numbers would be infinitessimally less then their whole number (all multiples of 4) but that would be nit picking.

So if your lower land coordinates (south west) were 32, 64, and your parcel was 32 e/w and 16 n/s, your exact centre would be 48, 72.

However, as in most things in SL, do it visually, and don't worry too much about the exact geometry.

try using 2m squares. it's a lot easier to get those to line up with the property lines.

I dunno if it's true, but in my experience so far, all parcel edges seem to be on gridlines. For example, they always seem to be whole numbers, and edge on the sim edges. So the coordinates of all the edges I have seen, have always been whole numbers.

example.. a plot that goes from 0 to 32 and 240 to 218. I have yet to see a diagonal parcel edge, but I suppose they might be possible.

The idea of placing prims up against the edges is a great idea. I did this myself last night. 4 8x8 prims wide, by 4 8x8 prims long... located the edges of my parcel perfectly. The center was then easy as pie to locate.

It is always made of one or more rectangles, though.

how about a script. You put coordinates into a notecard, and drop the notecard and script into an object that you wear or move around. Each time it moves, it tells you how far it is to the coordinates. When the distances are equal, you are in the middle.

Have you considered hills. Distance will be straight line, which might burrow thru hills. is that ok?

lee