Table of Contents
Export / Import Terrain Files
I used some custom formats for files used to import or export tile data. Generally, there are three file formats used for exporting/importing L2 terrain data and only one for exporting elevation data while in L0/ELV mode.
The way the data are read at all cases is the same and can be seen in the following picture:
While the map's lower-left point is the starting point (0,0), the X axis is horizontally and Y axis is vertically. In an export/import area the data order starts from the lower-left tile of this area (depicted with a dot in the picture) and the order the data are stored is row by row (represented by the arrows).
L2 Export/Import Files
The file types available are:
(*.exp): This contains only tile offset values (tile numbering) of the exported/importing tiles.(*.xpe): This contains tile offset values (tile numbering) and elevation data of the exported/importing tiles.(*.xpf): This contains all tile values (tile offset, elevation, PAL offset, X1 and X2) of the exported/importing tiles.
The format of these files are:
(*.exp)
| Byte # | Length | Type | Value |
|---|---|---|---|
| 0 | 1 | byte | ASCII value 84 (letter T) |
| 1 | 1 | byte | ASCII value 69 (letter E) |
| 2 | 1 | byte | ASCII value 80 (letter P) |
| 3 | 4 | long | Lower-left X coordinate of export area (LLX) |
| 7 | 4 | long | Lower-left Y coordinate of export area (LLY) |
| 11 | 1 | byte | ASCII value 101 (letter e) |
| 12 | 1 | byte | ASCII value 120 (letter x) |
| 13 | 1 | byte | ASCII value 112 (letter p) |
| 14 | 4 | long | Size of X dimension (number of columns) |
| 18 | 4 | long | Size of Y dimension (number of rows) |
| 22 | 4 | long | Tile Offset record #1 |
| 26 | 4 | long | Tile Offset record #2 |
| … | … | … | … |
| | 4 | long | Tile Offset record #n |
File size:
(*.xpe)
| Byte # | Length | Type | Value |
|---|---|---|---|
| 0 | 1 | byte | ASCII value 84 (letter T) |
| 1 | 1 | byte | ASCII value 69 (letter E) |
| 2 | 1 | byte | ASCII value 80 (letter P) |
| 3 | 4 | long | Lower-left X coordinate of export area (LLX) |
| 7 | 4 | long | Lower-left Y coordinate of export area (LLY) |
| 11 | 1 | byte | ASCII value 120 (letter x) |
| 12 | 1 | byte | ASCII value 112 (letter p) |
| 13 | 1 | byte | ASCII value 101 (letter e) |
| 14 | 4 | long | Size of X dimension (number of columns) |
| 18 | 4 | long | Size of Y dimension (number of rows) |
| 22 | 4 | long | Tile Offset record #1 |
| 26 | 2 | short | Elevation record #1 |
| 28 | 4 | long | Tile Offset record #2 |
| 32 | 2 | short | Elevation record #2 |
| … | … | … | … |
| | 4 | long | Tile Offset record #n |
| | 2 | short | Elevation record #n |
File size:
(*.xpf)
| Byte # | Length | Type | Value |
|---|---|---|---|
| 0 | 1 | byte | ASCII value 84 (letter T) |
| 1 | 1 | byte | ASCII value 69 (letter E) |
| 2 | 1 | byte | ASCII value 80 (letter P) |
| 3 | 4 | long | Lower-left X coordinate of export area (LLX) |
| 7 | 4 | long | Lower-left Y coordinate of export area (LLY) |
| 11 | 1 | byte | ASCII value 120 (letter x) |
| 12 | 1 | byte | ASCII value 112 (letter p) |
| 13 | 1 | byte | ASCII value 102 (letter f) |
| 14 | 4 | long | Size of X dimension (number of columns) |
| 18 | 4 | long | Size of Y dimension (number of rows) |
| 22 | 4 | long | Tile Offset record #1 |
| 26 | 2 | short | Elevation record #1 |
| 28 | 1 | byte | PAL Offset record #1 |
| 29 | 1 | byte | X1 record #1 |
| 30 | 1 | byte | X2 record #1 |
| 31 | 4 | long | Tile Offset record #2 |
| 35 | 2 | short | Elevation record #2 |
| 37 | 1 | byte | PAL Offset record #2 |
| 38 | 1 | byte | X1 record #2 |
| 39 | 1 | byte | X2 record #2 |
| … | … | … | … |
| | 4 | long | Tile Offset record #n |
| | 2 | short | Elevation record #n |
| | 1 | byte | PAL Offset record #n |
| | 1 | byte | X1 record #n |
| | 1 | byte | X2 record #n |
File size:
L0/ELV Export/Import File
The only availiable file format is:
(*.xlv)
| Byte # | Length | Type | Value |
|---|---|---|---|
| 0 | 1 | byte | ASCII value 84 (letter T) |
| 1 | 1 | byte | ASCII value 69 (letter E) |
| 2 | 1 | byte | ASCII value 80 (letter P) |
| 3 | 4 | long | Lower-left X coordinate of export area (LLX) |
| 7 | 4 | long | Lower-left Y coordinate of export area (LLY) |
| 11 | 1 | byte | ASCII value 120 (letter x) |
| 12 | 1 | byte | ASCII value 108 (letter l) |
| 13 | 1 | byte | ASCII value 118 (letter v) |
| 14 | 4 | long | Size of X dimension (number of columns) |
| 18 | 4 | long | Size of Y dimension (number of rows) |
| 22 | 2 | short | Elevation record #1 |
| 24 | 2 | short | Elevation record #2 |
| … | … | … | … |
| | 2 | short | Elevation record #n |
File size:
