/// Gets data represented by elements and meshes for given quad key.
void getDataByQuadKey(int tag, // request tag
const char *styleFile, // style file
int tileX, int tileY, int levelOfDetail, // quad key info
int eleDataType, // elevation data type
OnMeshBuilt *meshCallback, // mesh callback
OnElementLoaded *elementCallback, // element callback
OnError *errorCallback, // error callback
utymap::CancellationToken *cancellationToken) {
utymap::QuadKey quadKey(levelOfDetail, tileX, tileY);
auto eleProviderType = static_cast<ElevationDataType>(eleDataType);
::safeExecute([&]() {
auto &styleProvider = context_.getStyleProvider(styleFile);
auto &eleProvider = context_.getElevationProvider(quadKey, eleProviderType);
ExportElementVisitor elementVisitor(tag, quadKey, context_.stringTable, styleProvider, eleProvider, elementCallback);
context_.quadKeyBuilder.build(
quadKey, styleProvider, eleProvider,
[&meshCallback, tag](const utymap::math::Mesh &mesh) {
// NOTE do not notify if mesh is empty.
if (!mesh.vertices.empty()) {
meshCallback(tag, mesh.name.data(),
mesh.vertices.data(), static_cast<int>(mesh.vertices.size()),
mesh.triangles.data(), static_cast<int>(mesh.triangles.size()),
mesh.colors.data(), static_cast<int>(mesh.colors.size()),
mesh.uvs.data(), static_cast<int>(mesh.uvs.size()),
mesh.uvMap.data(), static_cast<int>(mesh.uvMap.size()));
}
}, [&elementVisitor](const utymap::entities::Element &element) {
element.accept(elementVisitor);
}, *cancellationToken);
}, errorCallback);
}
// Loads quadKey.
void loadQuadKey(const char* styleFile, const utymap::QuadKey& quadKey, OnMeshBuilt* meshCallback,
OnElementLoaded* elementCallback, OnError* errorCallback)
{
try {
auto& eleProvider = quadKey.levelOfDetail <= SrtmElevationLodStart
? flatEleProvider_
: (utymap::heightmap::ElevationProvider&) srtmEleProvider_;
// TODO: preloading is not thread safe: extract separate API function
eleProvider.preload(utymap::utils::GeoUtils::quadKeyToBoundingBox(quadKey));
utymap::mapcss::StyleProvider& styleProvider = *getStyleProvider(styleFile);
QuadKeyElementVisitor elementVisitor(stringTable_, styleProvider, quadKey.levelOfDetail, elementCallback);
quadKeyBuilder_.build(quadKey, styleProvider, eleProvider,
[&meshCallback](const utymap::meshing::Mesh& mesh) {
meshCallback(mesh.name.data(),
mesh.vertices.data(), mesh.vertices.size(),
mesh.triangles.data(), mesh.triangles.size(),
mesh.colors.data(), mesh.colors.size());
}, [&elementVisitor](const utymap::entities::Element& element) {
element.accept(elementVisitor);
});
}
catch (std::exception& ex) {
errorCallback(ex.what());
}
}
// Loads quadKey.
void loadQuadKey(const char* styleFile,
const utymap::QuadKey& quadKey,
OnMeshBuilt* meshCallback,
OnElementLoaded* elementCallback,
OnError* errorCallback)
{
safeExecute([&]() {
auto styleProvider = getStyleProvider(styleFile);
ExportElementVisitor elementVisitor(stringTable_, *styleProvider, quadKey.levelOfDetail, elementCallback);
quadKeyBuilder_.build(quadKey, *styleProvider, getElevationProvider(quadKey),
[&meshCallback](const utymap::meshing::Mesh& mesh) {
// NOTE do not notify if mesh is empty.
if (!mesh.vertices.empty()) {
meshCallback(mesh.name.data(),
mesh.vertices.data(), static_cast<int>(mesh.vertices.size()),
mesh.triangles.data(), static_cast<int>(mesh.triangles.size()),
mesh.colors.data(), static_cast<int>(mesh.colors.size()));
}
}, [&elementVisitor](const utymap::entities::Element& element) {
element.accept(elementVisitor);
});
}, errorCallback);
}