OBD:PLEA: Difference between revisions
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{{OBD_File_Header|align=center|type=PLEA|prev=OTLF|next=PNTA|name=Plane Equation Array|family=Level|onistuff=plea}} | |||
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http://www6.fh-eberswalde.de/user/dkriesch/onistuff/images/plea_a.gif | http://www6.fh-eberswalde.de/user/dkriesch/onistuff/images/plea_a.gif | ||
{|{{OBDtable}} | |||
{| | |align=center| | ||
|- | {|{{OBDtable}} | ||
|-BGCOLOR="#FFDDBB" | |||
! WIDTH=15% | <B>Hex</B> | |||
! WIDTH=15% | <B>Translation</B> | |||
|- | ! WIDTH=70% | <B>Meaning</B> | ||
|- | |||
| BGCOLOR="#FF0000" | 01 41 02 00 | | BGCOLOR="#FF0000" | 01 41 02 00 | ||
| 577 | | 577 | ||
| ALIGN=LEFT | 00577-.PLEA | | ALIGN=LEFT | 00577-.PLEA | ||
|- | |- | ||
| BGCOLOR="#FFFF00" | 01 00 00 06 | | BGCOLOR="#FFFF00" | 01 00 00 06 | ||
| 3 | | 3 | ||
| ALIGN=LEFT | level 3 | | ALIGN=LEFT | level 3 | ||
|- | |- | ||
| BGCOLOR="#00FF00" | AD DE | | BGCOLOR="#00FF00" | AD DE | ||
| dead | | dead | ||
| ALIGN=LEFT | not used | | ALIGN=LEFT | not used | ||
|- | |- | ||
| BGCOLOR="#00FFFF" | F2 34 00 00 | | BGCOLOR="#00FFFF" | F2 34 00 00 | ||
| 13554 | | 13554 | ||
| ALIGN=LEFT | 13554 packages follow ( | | ALIGN=LEFT | 13554 packages follow (first package outlined in black) | ||
|- | |- | ||
| BGCOLOR="#000000" COLSPAN=3 | <FONT COLOR="#FFFFFF">First package (i.e., plane equation) follows</FONT> | |||
|- | |- | ||
| BGCOLOR="#FFC8C8" | 00 00 00 00 | | BGCOLOR="#FFC8C8" | 00 00 00 00 | ||
| 0.000000 | | 0.000000 | ||
| ALIGN=LEFT | | | ALIGN=LEFT | first coefficient of the plane equation | ||
|- | |- | ||
| BGCOLOR="#FFFFC8" | 00 00 00 00 | | BGCOLOR="#FFFFC8" | 00 00 00 00 | ||
| 0.000000 | | 0.000000 | ||
| ALIGN=LEFT | | | ALIGN=LEFT | second coefficient of the plane equation | ||
|- | |- | ||
| BGCOLOR="#C8FFC8" | 00 00 80 3F | | BGCOLOR="#C8FFC8" | 00 00 80 3F | ||
| 1.000000 | | 1.000000 | ||
| ALIGN=LEFT | | | ALIGN=LEFT | third coefficient of the plane equation | ||
|- | |- | ||
| BGCOLOR="#C8FFFF" | 00 00 19 44 | | BGCOLOR="#C8FFFF" | 00 00 19 44 | ||
| 612.000000 | | 612.000000 | ||
| ALIGN=LEFT | | | ALIGN=LEFT | fourth coefficient of the plane equation | ||
|} | |||
|} | |} | ||
;Plane equation | |||
:The canonical equation for a [http://mathworld.wolfram.com/Plane.html plane] in 3D is : | |||
::a * x + b * y + c * z + d = 0 | |||
:where (a, b, c, d) are 4 real numbers. The plane is the set of points (x, y, z) verifying that equation. | |||
:It is likely that the four floats in one of a PLEA's packages are exactly the (a, b, c, d) of the above definition. | |||
::In that case, the first package of the above example defines the plane (0 * x + 0 * y + 1 * z + 612 = 0), i.e., the vertical plane z = -612. | |||
:It is possible, however, that the definition used is different, e.g. : a * x + b * y + c * z = d . | |||
::In that case, the first package of the above example defines the plane (0 * x + 0 * y + 1 * z = 612), i.e., the vertical plane z = 612. | |||
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{{OBD_File_Footer|align=center|type=PLEA|prev=OTLF|next=PNTA|name=Plane Equation Array|family=Level|onistuff=plea}} | |||