Reads a VRML 1.0 files to generate an unstructured mesh.
| Name | Type | Description | UI Control |
| filename | string | Name of VRML 1.0 file to read. | File Dialog |
| Subdivision | integer | Number of faces for round objects. | Slider |
| Name | Type | Description | |
| out | 3D Field | Geometries and data read from the VRML file. | |
| obj | DefaultObject | Directly Renderable Object. | |
The ReadVRML user macro reads a VRML 1.0 file with a given filename. The file is parsed by the vrml2geom parser that generates a list of geometry objects. These objects are converted to the unstructured AVS Field which is passed back to AVS/Express. The DataObject which is part of the user macro converts this AVS/Field into a Directly renderable object which can be rendered by a standard Uviewer.
The Subdivision parameter which can be passed to the ReadVRML module defienes the number of faces round objects (cylinders, Spheres, cones etc.) are defined by. If this parameter is unset a value of 20 is used.
filename
String parameter that contains the name of the VRML 1.0 file that should be read.
Subdivision
This integer parameter defienes the number of faces round objects (cylinders, Spheres, cones etc.) are defined by. If this parameter is unset a value of 20 is used.
out
AVS/Express Field output that contains the geometries and data read from the VRML 1.0 file.
obj
The directly renderable output of the ReadVRML macro. This output contains the geometries and data read from the VRML 1.0 file in a form that can be rendered by the standard data viewers.
The ReadVRMLFunc functional macro uses the ReadVRMLCore low-level module. The ReadVRML user macro uses this functional macro and the ReadVRMLUI user interface macro.
An example application ReadVRMLEg is provided whith the project.
iac_proj/rd_vrml1/rdvrmods.v Creates the ReadVRMLMods library containing the parameter block ReadVRMLParams and the low-level module ReadVRMLCore.
iac_proj/rd_vrml1/rdvrmacs.v Creates the ReadVRMLMacs library containing the UI macro ReadVRMLUI the functional macro ReadVRMLFunc and the user macro ReadVRML.
iac_proj/rd_vrml1/rdvrapps.v Creates the ReadVRMLApps library containing the example applications ReadVRMLEg.
The low-level ReadVRMLCore module needs the libVRML2GEO.a library. The source code to this library is provided in the package. In order to compile correctly the avsenv file has to contain the absolute path the the AVS/Express working directory (i.e. /home/user/iac/ $XP_ROOT). The low-level ReadVRMLMods library containing the low-level ReadVRMLCore module does not specify a process. By default the express process will be used.
Yoshikawa Hiroyuki KGT (Kubota Graphics Technologies) Inc. Tobias Schiebeck, Manchester Visualization Centre
International AVS Centre Manchester Visualization Centre Manchester Computing University of Manchester Oxford Road Manchester United Kingdom M13 9PL