AGN (FSX): Difference between revisions
No edit summary |
No edit summary |
||
| Line 15: | Line 15: | ||
== Sections == | == Sections == | ||
The AGN file uses the RIFF format, this means that the file consists of different sections. Each section starts with a four character label, followed by the size of the content in bytes (this size is thus without the length of the header itself). | The AGN file uses the RIFF format, this means that the file consists of different sections. '''Each section starts with a four character label, followed by the size of the content in bytes''' (this size is thus without the length of the header itself). | ||
The main RIFF section itself has one additional parameter, this is a four character string that indicates the type of RIFF AGN file. For an FSX AGN file the value should always be AGNX. | The main RIFF section itself has one additional parameter, this is a four character string that indicates the type of RIFF AGN file. For an FSX AGN file the value should always be AGNX. | ||
| Line 26: | Line 26: | ||
int version (normally 4) | int version (normally 4) | ||
int | int version (normally 13107) | ||
=== GBDD === | === GBDD === | ||
| Line 32: | Line 32: | ||
Contains information about autogen generic buildings | Contains information about autogen generic buildings | ||
int percentage of 1 and 2 floor buildings (normally 10) | int percentage of 1 and 2 floor buildings (normally 10) | ||
int percentage of 3 to 5 floor buildings (normally 10) | int percentage of 3 to 5 floor buildings (normally 10) | ||
| Line 57: | Line 56: | ||
float X position of third point | float X position of third point | ||
float Y position of third point | float Y position of third point | ||
Repeat GBLR sections for each GUID used. | |||
=== PREG === | === PREG === | ||
| Line 78: | Line 79: | ||
The x and y coordinates are given as offset in the LOD13 square (range 0 till 1). | The x and y coordinates are given as offset in the LOD13 square (range 0 till 1). | ||
=== VGRG === | |||
Contains information about pre-FSX style rectangular vegetation regions. | |||
==== VGRE ===== | |||
GUID vegetation type | |||
For each rectangle: | |||
float X position of first point | |||
float Y position of first point | |||
float X position of second point | |||
float Y position of second point | |||
[[Category:File_Formats]] | [[Category:File_Formats]] | ||
Revision as of 23:28, 17 March 2009
 | This page is a work-in-progress. Generic message - Please note some detail may possibly be missing or incorrect. |
This document describes the FSX format for autogen (AGN) files. This description is not yet complete, so feel free to add more information if you have any.
Sections
The AGN file uses the RIFF format, this means that the file consists of different sections. Each section starts with a four character label, followed by the size of the content in bytes (this size is thus without the length of the header itself).
The main RIFF section itself has one additional parameter, this is a four character string that indicates the type of RIFF AGN file. For an FSX AGN file the value should always be AGNX.
The following subsection show more details about the content of these different sections.
VERS
Contains versions information about the AGN file.
int version (normally 4) int version (normally 13107)
GBDD
Contains information about autogen generic buildings
int percentage of 1 and 2 floor buildings (normally 10) int percentage of 3 to 5 floor buildings (normally 10) int percentage of 6 to 8 floor buildings (normally 10) int percentage of 9 to 12 floor buildings (normally 10)
Valid values for percentage are from 0x00 (0%) to 0x14 (100%).
GBLD
Contains building information.
GBLR
Contains information about Generic Buildings.
GUID roof type (will use default roofs, if 0)
For each Generic Building:
float X position of first point float Y position of first point float X vector to the second point float Y vector to the second point float X position of third point float Y position of third point
Repeat GBLR sections for each GUID used.
PREG
For vegatation information
PRDE
For vegatation polygon. Contains:
GUID vegatation type
For each polygon:
int number of vertices
For each vertex:
single x single y
The x and y coordinates are given as offset in the LOD13 square (range 0 till 1).
VGRG
Contains information about pre-FSX style rectangular vegetation regions.
VGRE =
GUID vegetation type
For each rectangle:
float X position of first point float Y position of first point float X position of second point float Y position of second point
