Load_Nurbs

Synopsis

Reads Nurbs data files and outputs a pointer to the Nurbs data.

Parameters

Name Type Description UI Control
Filename string Filename to load File Dialog

Output Ports

Name Type Description
out nurbs_type (ptr) Outputs a pointer to the Nurbs data.

Description

This module reads a NURBS data file and outputs a pointer to the Nurbs data. This pointer can be used with the Nurbs_To_Field and Nurbs_To_Mesh modules.

Parameters

filename

String parameter that specifies which Nurbs data file should be read. The filename string should contain the full path name of the file.

Outputs

out

Pointer to the NURBS data.

Utility Macros

Load_Nurbs_func

The Load_Nurbs_func functional macro uses the low-level rd_nurbs module. The macro takes a file name as an input from the Load_Params paramerter block. The macro outputs the data read from the NURBS data file as a pointer to the NURBS-data.

The Load_Nurbs_func functional macro and the Load_Nurbs_UI user interface macro are both used by the Load_Nurbs user macro. All of these macros use the Load_Params parameter block to communicate.

The output from this module cannot directly be viewed in the 3D viewer.

Example

The project includes an example application that demonstrates the use of the NURBS marcos. The application contains the nurbs file loader (Load_Nurbs) plus the Nurbs_To_Mesh and the Nurbs_To_Field modules. These allow the viewing of the supplied NURBS data files in the 3D viewer.

Files

iac_proj/nurbs/nurbsmod.v contains the V definitions of the rd_nurbs, nurbs_to_field, nurbs_ctrl_to_mesh, and the nurbs_utilities module. It also contains the parameter blocks Load_Params, Field_Params, and Mesh_Params.

iac_proj/nurbs/nurbsmac.v contains the V definitions of the Load_Nurbs_UI user interface macro, the Load_Nurbs_func functional macro and the Load_Nurbs user macro.

Authors

Contact:
	Fenqiang Lin, W T Hewitt
    Computer Graphics Unit
    Manchester Computing
    University of Manchester
    Manchester M13 9PL
    eMail: cgu-info@mcc.ac.uk
    tel:    0161 275 6095
    fax:    0161 275 6040

Modifications

Ian Guthrie
Manchester Visualization Centre

Tobias Schiebeck
International AVS Centre

Contact

International AVS Centre
Manchester Visualization Centre
Manchester Computing
University of Manchester
Oxford Road
Manchester
United Kingdom
M13 9PL

See Also