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access:journal-file-proposal [2018/06/21 17:07]
mjallison [ADF JSON]
access:journal-file-proposal [2018/06/26 22:22] (current)
mjallison [Area Block (.area)]
Line 54: Line 54:
 The JSON object for all entries will minimally look like: The JSON object for all entries will minimally look like:
  
-+   
-   ​latitude: number, ​    // LLA  +      "​latitude": number, ​    // LLA  
-   ​longitude: number, ​   // LLA  +      "​longitude": number, ​   // LLA  
-   ​altitude: number, ​    // LLA +      "​altitude": number, ​    // LLA 
-   ​note: string ​         // A comment about the entry. +      "​note""string" ​       ​// A comment about the entry. 
-}+   ​}
  
 The location contained within the entry'​s JSON is referred to as the //reference point//. This point will be  The location contained within the entry'​s JSON is referred to as the //reference point//. This point will be 
Line 77: Line 77:
 The path to the Journal entry'​s are as follows: The path to the Journal entry'​s are as follows:
  
-   /CM/UserData/Photos/ +   /CM/JournalData/Photos/ 
-   /CM/UserData/Areas/ +   /CM/JournalData/Areas/ 
-   /CM/UserData/Note/ +   /CM/JournalData/Note/ 
-   /CM/UserData/Tracks/+   /CM/JournalData/Tracks/
  
 Each section has a JSON descriptor, with corresponding data files. For instance, Photos, might look like: Each section has a JSON descriptor, with corresponding data files. For instance, Photos, might look like:
  
-   /CM/UserData/​Photos/​photos.json +   /CM/JournalData/​Photos/​photos.json 
-   /CM/UserData/​Photos/​Photo1.jpg +   /CM/JournalData/​Photos/​Photo1.jpg 
-   /CM/UserData/​Photos/​Photo2.jpg+   /CM/JournalData/​Photos/​Photo2.jpg
  
 Because notes can be entirely contained in the JSON, the notes structure looks like: Because notes can be entirely contained in the JSON, the notes structure looks like:
  
-   /CM/UserData/​Photos/​notes.json+   /CM/JournalData/​Photos/​notes.json
  
 Tracks will look like Tracks will look like
  
-   /CM/UserData/Tracks/tracks.json +   /CM/JournalData/UserTracks/usertracks.json 
-   /CM/UserData/Tracks/track1.trk +   /CM/JournalData/UserTracks/track1.track 
-   /CM/UserData/Tracks/tracl2.trk+   /CM/JournalData/UserTracks/tracl2.track
  
 Areas will look like Areas will look like
  
-   /CM/UserData/​Areas/​areas.json +   /CM/JournalData/​Areas/​areas.json 
-   /CM/UserData/​Areas/​Measure1.trk +   /CM/JournalData/​Areas/​Measure1.area 
-   /CM/UserData/​Areas/​Measure2.trk+   /CM/JournalData/​Areas/​Measure2.area
  
 While the structure is defined to support multiple data instances, the server may only create single ADF file per entry. ​ While the structure is defined to support multiple data instances, the server may only create single ADF file per entry. ​
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 Photos and Notes have defined data storage types, but Tracks and Areas do not. This section details two new binary Photos and Notes have defined data storage types, but Tracks and Areas do not. This section details two new binary
 ADF block types. ​ ADF block types. ​
 +
 +===== User Track Block (.track) =====
 +The Track block is a zipfile entry, which is a series of track points. A track is defined to have a 
 +starting point (the very first point) and an end point (the very last point).
 +
 +Block Header:
 +  * Block Code 2001 : Int32 
 +  * Block Size : Int32 = 40 for this definition
 +  * Number of points : Int32 
 +
 +The series of points are as follows:
 +  * latitude ​ - Double 64 (degrees)
 +  * longitude - Double 64 (degrees)
 +  * altitude ​ - Double 64 (meters above MSL)
 +  * time      - Int64 (std mSec time)
 +  * compass ​  - Double 64 (0..359.9999)
 +
 +===== Area Block (.area) =====
 +The Area block is a zipfile entry, which is a series of points. A area is defined to be a closed
 +region, e.g. the last point connects to the first point. There is no duplicated points to "​close" ​
 +the area, and it is expected that applications perform whatever operations needed to represent it 
 +as such. It is considered an error to close an area by duplicating a point for the first and last 
 +in this block.
 +
 +Block Header:
 +  * Block Code 2002 : Int32
 +  * Block Size : Int32  = 24 bytes for this definition
 +  * Number of points : Int32
 +  * 
 +The series of points are as follows:
 +  * latitude ​ - Double 64 (degrees)
 +  * longitude - Double 64 (degrees)
 +  * altitude ​ - Double 64 (meters above MSL)
 +
 +
access/journal-file-proposal.1529600873.txt.gz · Last modified: 2018/06/21 17:07 by mjallison