Virtual building modeling became an increasingly
urgent need for computer graphics, simulation, games, films
and virtual reality. However, this is an exhaustive task and
requires much more time and effort. There are many
researches, which state this problem, but most of them
concentrate on grammar-based generation. Grammar-based
generation researches require more time to learn and are
not suitable for non-qualified users. Our paper presents a
new framework to generate automatic and extensive 3D
solid building models procedurally relying on a set of
methods called modules; these modules are offset, ellipse, Lsystem,
smoother, polygon reduction, polygon division,
transformation, and extrusion. Our building model can be
created either automatically or semi-automatically. Each
building model consists of some or all of our modules, these
modules are specified either by an automatic model
generator or by users to create a special model (using the
wizard or writing an xml file). Model modules declare how
the building footprints, floors and geometries will be
generated. Our framework generates different building
models using the same modules with different parameters’
values, while the modules remain small and simple, which
means less time to learn and enables non-technical users to
create wonderful solid building models. Our framework can
generate trivial and non-trivial buildings’ types according to
certain rules. |
