Too fast... regarding the class definitions, to achieve readability here as well I would then suggest using a 3 letter abbreviation.
...main classes:
Power PWR
Engine ENG
Transmission TRX
Chassis CHS
Body BDY
Electrics ELC...auxiliary classes?
Safety SAF (Chassis, Body, Electrics)
Security SEC (Power?, Body, Electrics)
Comfort CMF (Chassis, Body, Electrics)
Entertainment ENT (Body, Electrics)
Communication COM (Body, Electrics)Also I would prefer "-" as a separator over ".".
For my current application (battery pack + cell data), that would result in type codes...
RT-PWR-BattPack
RT-PWR-BattCell...or general form
*-PWR-BattPack
*-PWR-BattCellBtw: general purpose codes could be written without "*-" prefix as well? That would be...
PWR-BattPack
PWR-BattCellRegards, Michael
Am 15.12.2012 12:01, schrieb Michael Balzer:
Silly me just assumed you'd prefer integer... I'm using text codes in my own DB designs whenever possible due to readability.
In other words: of course! :-)
I'll modify my code now accordingly.
Am 15.12.2012 11:48, schrieb Mark Webb-Johnson:
The coding looks good, and sensible.
How about we just make it a text string, rather than integer. Much clearer to read, and almost no impact on size.
VV.C.P
VV the normal vehicle types, or '*' for generic. C your class P your property
On 15 Dec, 2012, at 6:53 AM, Michael Balzer <dexter@expeedo.de <mailto:dexter@expeedo.de>> wrote:
Mark, List,
Am 04.12.2012 20:43, schrieb Michael Balzer:
o type (integer type code)For general purpose type codes, maybe some classification scheme would make sense? Maybe adopt some standard scheme already defined for automotive data? ...if there is one...
It seems there is none suitable, so here's my attempt at defining one. Please comment.
Regards, Michael
Type classification scheme: id size: 32 bit integer
Generic / standard props:
0x 0000 C PPPVehicle specific props:
0x VVVV C PPP VVVV = Vehicle ID 0001 = Tesla Roadster 0002 = Tesla Model S 0003 = GM Volt / Opel Ampera 0004 = Renault Twizy ...C = Class:
...main classes:
0 = Power 1 = Engine 2 = Transmission 3 = Chassis 4 = Body 5 = Electrics...auxiliary classes?
6 = Safety (Chassis, Body, Electrics) 7 = Security (Power?, Body, Electrics) 8 = Comfort (Chassis, Body, Electrics) 9 = Entertainment (Body, Electrics) a = Communication (Body, Electrics) b = reserved c = reserved d = reserved e = reserved f = reservedPPP = Property ...allowing for 4096 properties per class.
-- Michael Balzer * Paradestr. 8 * D-42107 Wuppertal Fon 0202 / 272 2201 * Handy 0176 / 206 989 26 <dexter.vcf>
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-- Michael Balzer * Paradestr. 8 * D-42107 Wuppertal Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
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-- Michael Balzer * Paradestr. 8 * D-42107 Wuppertal Fon 0202 / 272 2201 * Handy 0176 / 206 989 26