Tile Inspection Grid

Purpose: Verify tiles at each zoom level show the same geographic area.

Expected: All tiles should show parts of East Texas (around -101°W to -94°W, 26°N to 30°N)

Zoom Level 0 (1 sample tiles)

0/0/0
z=0
x=0
y=0
TileID=0

Zoom Level 1 (1 sample tiles)

1/0/1
z=1
x=0
y=1
TileID=2

Zoom Level 2 (1 sample tiles)

2/0/3
z=2
x=0
y=3
TileID=10

Zoom Level 3 (1 sample tiles)

3/0/3
z=3
x=0
y=3
TileID=36

Zoom Level 4 (1 sample tiles)

4/2/5
z=4
x=2
y=5
TileID=140

Zoom Level 5 (2 sample tiles)

5/6/10
z=5
x=6
y=10
TileID=551
5/7/9
z=5
x=7
y=9
TileID=553

Zoom Level 6 (3 sample tiles)

6/14/24
z=6
x=14
y=24
TileID=2195
6/15/23
z=6
x=15
y=23
TileID=2197
6/14/22
z=6
x=14
y=22
TileID=2199

Zoom Level 7 (3 sample tiles)

7/29/54
z=7
x=29
y=54
TileID=8764
7/31/54
z=7
x=31
y=54
TileID=8768
7/30/53
z=7
x=30
y=53
TileID=8770

Zoom Level 8 (3 sample tiles)

8/59/105
z=8
x=59
y=105
TileID=35035
8/56/110
z=8
x=56
y=110
TileID=35049
8/58/110
z=8
x=58
y=110
TileID=35053

Zoom Level 9 (3 sample tiles)

9/104/208
z=9
x=104
y=208
TileID=140095
9/116/212
z=9
x=116
y=212
TileID=140149
9/117/215
z=9
x=117
y=215
TileID=140161

What to look for: