const IfcGeom::SurfaceStyle* IfcGeom::get_style(Ifc2x3::IfcRepresentationItem* item) {
std::pair<Ifc2x3::IfcSurfaceStyle*, Ifc2x3::IfcSurfaceStyleShading*> shading_styles = get_surface_style<Ifc2x3::IfcSurfaceStyleShading>(item);
if (shading_styles.second == 0) {
return 0;
}
int surface_style_id = shading_styles.first->entity->id();
std::map<int,SurfaceStyle>::const_iterator it = Cache::Style.find(surface_style_id);
if (it != Cache::Style.end()) {
return &(it->second);
}
SurfaceStyle surface_style;
if (shading_styles.first->hasName()) {
surface_style = SurfaceStyle(surface_style_id, shading_styles.first->Name());
} else {
surface_style = SurfaceStyle(surface_style_id);
}
std::tr1::array<double, 3> rgb;
if (process_colour(shading_styles.second->SurfaceColour(), rgb)) {
surface_style.Diffuse().reset(SurfaceStyle::ColorComponent(rgb[0], rgb[1], rgb[2]));
}
if (shading_styles.second->is(Ifc2x3::Type::IfcSurfaceStyleRendering)) {
Ifc2x3::IfcSurfaceStyleRendering* rendering_style = static_cast<Ifc2x3::IfcSurfaceStyleRendering*>(shading_styles.second);
if (rendering_style->hasDiffuseColour() && process_colour(rendering_style->DiffuseColour(), rgb)) {
SurfaceStyle::ColorComponent diffuse = surface_style.Diffuse().get_value_or(SurfaceStyle::ColorComponent(1,1,1));
surface_style.Diffuse().reset(SurfaceStyle::ColorComponent(diffuse.R() * rgb[0], diffuse.G() * rgb[1], diffuse.B() * rgb[2]));
}
if (rendering_style->hasDiffuseTransmissionColour()) {
// Not supported
}
if (rendering_style->hasReflectionColour()) {
// Not supported
}
if (rendering_style->hasSpecularColour() && process_colour(rendering_style->SpecularColour(), rgb)) {
surface_style.Specular().reset(SurfaceStyle::ColorComponent(rgb[0], rgb[1], rgb[2]));
}
if (rendering_style->hasSpecularHighlight()) {
IfcUtil::IfcArgumentSelect* highlight = static_cast<IfcUtil::IfcArgumentSelect*>(rendering_style->SpecularHighlight());
if (highlight->is(Ifc2x3::Type::IfcSpecularRoughness)) {
double roughness = *highlight->wrappedValue();
if (roughness >= 1e-9) {
surface_style.Specularity().reset(1.0 / roughness);
}
} else if (highlight->is(Ifc2x3::Type::IfcSpecularExponent)) {
surface_style.Specularity().reset(*highlight->wrappedValue());
}
}
if (rendering_style->hasTransmissionColour()) {
// Not supported
}
if (rendering_style->hasTransparency()) {
const double d = rendering_style->Transparency();
surface_style.Transparency().reset(d);
}
}
return &(Cache::Style[surface_style_id] = surface_style);
}
const IfcGeom::SurfaceStyle* IfcGeom::Kernel::internalize_surface_style(const std::pair<IfcSchema::IfcSurfaceStyle*, IfcSchema::IfcSurfaceStyleShading*>& shading_styles) {
if (shading_styles.second == 0) {
return 0;
}
int surface_style_id = shading_styles.first->entity->id();
std::map<int,SurfaceStyle>::const_iterator it = style_cache.find(surface_style_id);
if (it != style_cache.end()) {
return &(it->second);
}
SurfaceStyle surface_style;
if (shading_styles.first->hasName()) {
surface_style = SurfaceStyle(surface_style_id, shading_styles.first->Name());
} else {
surface_style = SurfaceStyle(surface_style_id);
}
double rgb[3];
if (process_colour(shading_styles.second->SurfaceColour(), rgb)) {
surface_style.Diffuse().reset(SurfaceStyle::ColorComponent(rgb[0], rgb[1], rgb[2]));
}
if (shading_styles.second->is(IfcSchema::Type::IfcSurfaceStyleRendering)) {
IfcSchema::IfcSurfaceStyleRendering* rendering_style = static_cast<IfcSchema::IfcSurfaceStyleRendering*>(shading_styles.second);
if (rendering_style->hasDiffuseColour() && process_colour(rendering_style->DiffuseColour(), rgb)) {
SurfaceStyle::ColorComponent diffuse = surface_style.Diffuse().get_value_or(SurfaceStyle::ColorComponent(1,1,1));
surface_style.Diffuse().reset(SurfaceStyle::ColorComponent(diffuse.R() * rgb[0], diffuse.G() * rgb[1], diffuse.B() * rgb[2]));
}
if (rendering_style->hasDiffuseTransmissionColour()) {
// Not supported
}
if (rendering_style->hasReflectionColour()) {
// Not supported
}
if (rendering_style->hasSpecularColour() && process_colour(rendering_style->SpecularColour(), rgb)) {
surface_style.Specular().reset(SurfaceStyle::ColorComponent(rgb[0], rgb[1], rgb[2]));
}
if (rendering_style->hasSpecularHighlight()) {
IfcSchema::IfcSpecularHighlightSelect* highlight = rendering_style->SpecularHighlight();
if (highlight->is(IfcSchema::Type::IfcSpecularRoughness)) {
double roughness = *((IfcSchema::IfcSpecularRoughness*)highlight);
if (roughness >= 1e-9) {
surface_style.Specularity().reset(1.0 / roughness);
}
} else if (highlight->is(IfcSchema::Type::IfcSpecularExponent)) {
surface_style.Specularity().reset(*((IfcSchema::IfcSpecularExponent*)highlight));
}
}
if (rendering_style->hasTransmissionColour()) {
// Not supported
}
if (rendering_style->hasTransparency()) {
const double d = rendering_style->Transparency();
surface_style.Transparency().reset(d);
}
}
return &(style_cache[surface_style_id] = surface_style);
}