Progressive surfaces
continuous level-of-detail for surfaces.
Progressive surfaces allow you to control precisely and continuously the level of detail of a #GtsSurface. They are built off-line by storing the sequence of edge collapses performed during surface simplification (see gts_psurface_new()). Fast traversal of the pre-built sequence allow on-line selection of the required level of detail.
Using the gts_psurface_write() function a text representation of a progressive surface can be written to a file, pipe or socket. This text representation allows the progressive transmission of a surface, starting with the coarsest representation and progressively refining it as data is read or received (see gts_psurface_open(), gts_psurface_read_vertex() and gts_psurface_close() for details).
Casts @klass to #GtsPSurfaceClass.
@klass: a descendant of #GtsPSurfaceClass.
Casts @obj to #GtsPSurface.
@obj: a descendant of #GtsPSurface.
Evaluates to %TRUE if @obj is a #GtsPSurface, %FALSE otherwise.
@obj: a pointer to test.
Evaluates to %TRUE if @ps has not been created with gts_psurface_open() or if
it has been closed using gts_psurface_close().
@ps: a #GtsPSurface.
The progressive surface class derived from #GtsObjectClass.
@parent_class:
The progressive surface object.
derived from #GtsObject. The field @s is the #GtsSurface being refined or coarsened by operations on the progressive surface. All the other fields must be considered private and accessed only through the following functions.
@object: The parent object.
@s: The #GtsSurface being refined or coarsened by operations on the progressive surface.
@split:
@split_class:
@pos:
@min:
@vertices:
@faces:
@Returns:
@klass:
@surface:
@split_class:
@cost_func:
@cost_data:
@coarsen_func:
@coarsen_data:
@stop_func:
@stop_data:
@minangle:
@Returns:
@ps:
@Returns:
@ps:
@Returns:
@ps:
@n:
@ps:
@Returns:
@ps:
@Returns:
@ps:
@Returns:
@ps:
@func:
@data:
@klass:
@s:
@split_class:
@f:
@Returns:
@ps:
@fp:
@Returns:
@ps:
@ps:
@fptr: