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Default Geometries

When an object is first created, and a type is selected, one of the following .dat files will be used as the default geometry:

Object Type Cartesian Grid Polar Grid
Blockage (solid) Cube14 (grey) Polcu8 (grey)
Blockage (solid+heat) Cube4 (red) Polcu7 (red)
Blockage (fluid) Cubet (transparent grey) Polcubt2 (transparent grey)
Blockage (fluid+heat) Cubet1 (transparent red) Polcubt1 (transparent red)
Inlet / Angled-in Cube3t (transparent purple) Polcu5t (transparent purple)
Outlet / Angled-out Cube12t (transparent light blue) Polcubet (transparent light blue)
Plate Cube11 (light brown) Polcu10 (light brown)
Plate + heat Cube13 (orange) Polcu2 (orange)
Thin plate Cube11 (light brown) Polcu10 (light brown)
Foliage foliage (transparent light green) foliage (transparent light green)
Fan Cube2t (transparent white) or Cylpipe if circular Polcu4t (transparent white)
Point_history Default (khaki) Poldef (khaki)
Fine grid volume Fine (special wire-frame) Polfgv
User defined1 Default (khaki) Poldef (khaki)
Celltype1 Default (khaki) Poldef (khaki)
Null Wirexyz (wire-frame) Wirexyz (wire-frame)
PCB Cube1 (green) Polcu9 (green)
Pressure relief Cubet (transparent grey) Polcubet (transparent grey)
ROTOR n/a Polcub4t (transparent white)
Drag_lift Drag (special wire-frame) Poldrag (special wire-frame)
Wind_profile / Wind Wind (transparent mauve) n/a
Sun Sun (transparent orange) n/a
Transfer Cubetran (transparent green) Polcubtra (transparent green)

These files are in the \phoenics \d_satell\d_object\public\default folder.

When the type of an object is subsequently changed, the geometry file will be changed according to the above table, as long as the current geometry is one of the above.

If the user has selected any other geometry, such as shapes\cylinder, then VR-Editor will not change it. Object types marked 1 in the table will also not change the geometry.

A description of the data file format is given in How do I make my own Clipart/Geometry files for PHOENICS-VR?

On exit from VR-Editor, a file called FACETDAT is created, which contains the definitions of the all the facets for all the non-cuboid objects. This file is read and interpreted by EARTH.

It is possible to make VR-Editor use a different geometry from that displayed on screen to create the FACETDAT file. This can be useful if the displayed geometry contains more detail than is required for the simulation.

Geometries whose file names appear in the file \phoenics \d_satell \d_object \replace.lst will be replaced by the default cube, or any other geometry specified there. The default replace.lst contains:

* File name replace.lst --------------------------------------- 24.12.02
*
* Geometries whose file names match those listed below will be
* replaced by the default cube at the time of setting facet cells and
* before writing facetdat file. If a second geometry name is listed,
* that will be used instead of the default cube.
* If a rotation code is required for the replacement geometry, it can
* be specified after the second name.
*
fan
fan1
fan2
fire
fire2
window
window1
window2
window3
window4
paddle
elgouna1  elg8
elcomp1   elcorep
frnt_whl cylinder 5
back_whl cylinder 5

On the last four lines, the second string contains the name of the geometry used to create the FACETDAT entry. On the last two lines, a rotation code is also specified.


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