Post on 12-Jan-2016
+y
+x+z
Default VRML Coordinate System
PC ScreenMonterey Bay Aquarium
Kelp Forest Virtual World
Coordinate System
+Ytank
+Xtank
+Ztank
Four front windows
- indicates axis coming out of diagram
× - indicates axis going into diagram
+Xtank
+Ytank
+Ztank
Top DownView
-Ztank
-Xtank
* Y = 0 at mean water surface
20.5-20.5
-16.0
+8.75
+y
+x+z
Default VRML Coordinate System
PC Screen
- indicates axis coming out of diagram
Four front windows
Tank Coordinate System+Ytank
+Xtank
+Ztank
-Xtank
+Ytank
* Y = 0 at mean water surface
- indicates axis coming out of diagram
+Xtank
+Ytank
+Ztank
Top DownView
-Ztank
-Xtank 20.5-20.5
-16.0
+8.75
Tank Coordinate System
* Y = 0 at mean water surface
- indicates axis coming out of diagram
Locale Coordinate System
+Ylocale
+Xlocale +Zlocale
Specific “Locale”
Fish Heading
t0t1
t
locale
/2
2
Example of a fish swimming in a circle inside a specific locale Note: Measured in radians about ylocale-axis;
t0
t1 +Xlocale
+Zlocale
Fish Path
locale
Time measured in seconds
Entity Coordinate System
+Yentity
+Xentity+Zentity
t
Fish Wiggle
t0 t1
entity
measured in radiansabout entity y-axis
Entity Coordinate System
+Yentity
+Xentity+Zentity
t
Fish Wiggle
t0 t1
entity
measured in radians about yfish-axis
t
ytank
Fish Depth
0t0
t1
-10
Note: Time measured in seconds Depth measure in meters
X1 = X0 + r cos( )Z1 = Z0 - r sin( )Y1 = Y0
+y
measured in radians about z-axis, right-hand rule applies, = 0 on X-axis
r
+z
+y
+x
r••
(x0, y0, z0)
(x1, y1, z1)
+x
Cylindrical Coordinate System
-z
Tank Layout
Tank Layout