C++ Document::GetConnectionsByDestinationSequenced方法代码示例

// ------------------------------------------------------------------------------------------------
AnimationStack::AnimationStack(uint64_t id, const Element& element, const std::string& name, const Document& doc)
: Object(id, element, name)
{
    const Scope& sc = GetRequiredScope(element);

    // note: we don't currently use any of these properties so we shouldn't bother if it is missing
    props = GetPropertyTable(doc,"AnimationStack.FbxAnimStack",element,sc, true);

    // resolve attached animation layers
    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"AnimationLayer");
    layers.reserve(conns.size());

    for(const Connection* con : conns) {

        // link should not go to a property
        if (con->PropertyName().length()) {
            continue;
        }

        const Object* const ob = con->SourceObject();
        if(!ob) {
            DOMWarning("failed to read source object for AnimationLayer->AnimationStack link, ignoring",&element);
            continue;
        }

        const AnimationLayer* const anim = dynamic_cast<const AnimationLayer*>(ob);
        if(!anim) {
            DOMWarning("source object for ->AnimationStack link is not an AnimationLayer",&element);
            continue;
        }
        layers.push_back(anim);
    }
}

// ------------------------------------------------------------------------------------------------
void Model::ResolveLinks(const Element& element, const Document& doc)
{
    const char* const arr[] = {"Geometry","Material","NodeAttribute"};

    // resolve material
    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),arr, 3);

    materials.reserve(conns.size());
    geometry.reserve(conns.size());
    attributes.reserve(conns.size());
    for(const Connection* con : conns) {

        // material and geometry links should be Object-Object connections
        if (con->PropertyName().length()) {
            continue;
        }

        const Object* const ob = con->SourceObject();
        if(!ob) {
            DOMWarning("failed to read source object for incoming Model link, ignoring",&element);
            continue;
        }

        const Material* const mat = dynamic_cast<const Material*>(ob);
        if(mat) {
            materials.push_back(mat);
            continue;
        }

        const Geometry* const geo = dynamic_cast<const Geometry*>(ob);
        if(geo) {
            geometry.push_back(geo);
            continue;
        }

        const NodeAttribute* const att = dynamic_cast<const NodeAttribute*>(ob);
        if(att) {
            attributes.push_back(att);
            continue;
        }

        DOMWarning("source object for model link is neither Material, NodeAttribute nor Geometry, ignoring",&element);
        continue;
    }
}

void LayeredTexture::fillTexture(const Document& doc)
{
    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
    for(size_t i = 0; i < conns.size();++i)
    {
        const Connection* con = conns.at(i);

        const Object* const ob = con->SourceObject();
        if(!ob) {
            DOMWarning("failed to read source object for texture link, ignoring",&element);
            continue;
        }

        const Texture* const tex = dynamic_cast<const Texture*>(ob);

        textures.push_back(tex);
    }
}

// ------------------------------------------------------------------------------------------------
Cluster::Cluster(uint64_t id, const Element& element, const Document& doc, const std::string& name)
: Deformer(id,element,doc,name)
, node()
{
    const Scope& sc = GetRequiredScope(element);

    const Element* const Indexes = sc["Indexes"];
    const Element* const Weights = sc["Weights"];

    const Element& Transform = GetRequiredElement(sc,"Transform",&element);
    const Element& TransformLink = GetRequiredElement(sc,"TransformLink",&element);

    transform = ReadMatrix(Transform);
    transformLink = ReadMatrix(TransformLink);

    // it is actually possible that there be Deformer's with no weights
    if (!!Indexes != !!Weights) {
        DOMError("either Indexes or Weights are missing from Cluster",&element);
    }

    if(Indexes) {
        ParseVectorDataArray(indices,*Indexes);
        ParseVectorDataArray(weights,*Weights);
    }

    if(indices.size() != weights.size()) {
        DOMError("sizes of index and weight array don't match up",&element);
    }

    // read assigned node
    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Model");
    for(const Connection* con : conns) {
        const Model* const mod = ProcessSimpleConnection<Model>(*con, false, "Model -> Cluster", element);
        if(mod) {
            node = mod;
            break;
        }
    }

    if (!node) {
        DOMError("failed to read target Node for Cluster",&element);
    }
}

// ------------------------------------------------------------------------------------------------
Material::Material(uint64_t id, const Element& element, const Document& doc, const std::string& name)
: Object(id,element,name)
{
    const Scope& sc = GetRequiredScope(element);

    const Element* const ShadingModel = sc["ShadingModel"];
    const Element* const MultiLayer = sc["MultiLayer"];

    if(MultiLayer) {
        multilayer = !!ParseTokenAsInt(GetRequiredToken(*MultiLayer,0));
    }

    if(ShadingModel) {
        shading = ParseTokenAsString(GetRequiredToken(*ShadingModel,0));
    }
    else {
        DOMWarning("shading mode not specified, assuming phong",&element);
        shading = "phong";
    }

    std::string templateName;

    // lower-case shading because Blender (for example) writes "Phong"
    std::transform(shading.begin(), shading.end(), shading.begin(), ::tolower);
    if(shading == "phong") {
        templateName = "Material.FbxSurfacePhong";
    }
    else if(shading == "lambert") {
        templateName = "Material.FbxSurfaceLambert";
    }
    else {
        DOMWarning("shading mode not recognized: " + shading,&element);
    }

    props = GetPropertyTable(doc,templateName,element,sc);

    // resolve texture links
    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
    for(const Connection* con : conns) {

        // texture link to properties, not objects
        if (!con->PropertyName().length()) {
            continue;
        }

        const Object* const ob = con->SourceObject();
        if(!ob) {
            DOMWarning("failed to read source object for texture link, ignoring",&element);
            continue;
        }

        const Texture* const tex = dynamic_cast<const Texture*>(ob);
        if(!tex) {
            const LayeredTexture* const layeredTexture = dynamic_cast<const LayeredTexture*>(ob);
            if(!layeredTexture) {
                DOMWarning("source object for texture link is not a texture or layered texture, ignoring",&element);
                continue;
            }
            const std::string& prop = con->PropertyName();
            if (layeredTextures.find(prop) != layeredTextures.end()) {
                DOMWarning("duplicate layered texture link: " + prop,&element);
            }

            layeredTextures[prop] = layeredTexture;
            ((LayeredTexture*)layeredTexture)->fillTexture(doc);
        }
        else
        {
            const std::string& prop = con->PropertyName();
            if (textures.find(prop) != textures.end()) {
                DOMWarning("duplicate texture link: " + prop,&element);
            }

            textures[prop] = tex;
        }

    }
}

// ------------------------------------------------------------------------------------------------
Texture::Texture(uint64_t id, const Element& element, const Document& doc, const std::string& name)
: Object(id,element,name)
, uvScaling(1.0f,1.0f)
, media(0)
{
    const Scope& sc = GetRequiredScope(element);

    const Element* const Type = sc["Type"];
    const Element* const FileName = sc["FileName"];
    const Element* const RelativeFilename = sc["RelativeFilename"];
    const Element* const ModelUVTranslation = sc["ModelUVTranslation"];
    const Element* const ModelUVScaling = sc["ModelUVScaling"];
    const Element* const Texture_Alpha_Source = sc["Texture_Alpha_Source"];
    const Element* const Cropping = sc["Cropping"];

    if(Type) {
        type = ParseTokenAsString(GetRequiredToken(*Type,0));
    }

    if(FileName) {
        fileName = ParseTokenAsString(GetRequiredToken(*FileName,0));
    }

    if(RelativeFilename) {
        relativeFileName = ParseTokenAsString(GetRequiredToken(*RelativeFilename,0));
    }

    if(ModelUVTranslation) {
        uvTrans = aiVector2D(ParseTokenAsFloat(GetRequiredToken(*ModelUVTranslation,0)),
            ParseTokenAsFloat(GetRequiredToken(*ModelUVTranslation,1))
        );
    }

    if(ModelUVScaling) {
        uvScaling = aiVector2D(ParseTokenAsFloat(GetRequiredToken(*ModelUVScaling,0)),
            ParseTokenAsFloat(GetRequiredToken(*ModelUVScaling,1))
        );
    }

    if(Cropping) {
        crop[0] = ParseTokenAsInt(GetRequiredToken(*Cropping,0));
        crop[1] = ParseTokenAsInt(GetRequiredToken(*Cropping,1));
        crop[2] = ParseTokenAsInt(GetRequiredToken(*Cropping,2));
        crop[3] = ParseTokenAsInt(GetRequiredToken(*Cropping,3));
    }
    else {
        // vc8 doesn't support the crop() syntax in initialization lists
        // (and vc9 WARNS about the new (i.e. compliant) behaviour).
        crop[0] = crop[1] = crop[2] = crop[3] = 0;
    }

    if(Texture_Alpha_Source) {
        alphaSource = ParseTokenAsString(GetRequiredToken(*Texture_Alpha_Source,0));
    }

    props = GetPropertyTable(doc,"Texture.FbxFileTexture",element,sc);

    // resolve video links
    if(doc.Settings().readTextures) {
        const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
        for(const Connection* con : conns) {
            const Object* const ob = con->SourceObject();
            if(!ob) {
                DOMWarning("failed to read source object for texture link, ignoring",&element);
                continue;
            }

            const Video* const video = dynamic_cast<const Video*>(ob);
            if(video) {
                media = video;
            }
        }
    }
}