void SetUp() override {
LOG("SETUP");
if (scene) { return; }
auto sceneRelPath = setResourceRoot(sceneFile);
auto sceneString = stringFromFile(sceneRelPath.c_str(), PathType::resource);
YAML::Node sceneNode;
try { sceneNode = YAML::Load(sceneString); }
catch (YAML::ParserException e) {
LOGE("Parsing scene config '%s'", e.what());
return;
}
scene = std::make_unique<Scene>();
SceneLoader::loadScene(sceneNode, *scene);
styleContext.initFunctions(*scene);
styleContext.setGlobalZoom(10);
const char* path = "tile.mvt";
std::ifstream resource(path, std::ifstream::ate | std::ifstream::binary);
if(!resource.is_open()) {
LOGE("Failed to read file at path: %s", path.c_str());
return;
}
size_t _size = resource.tellg();
resource.seekg(std::ifstream::beg);
rawTileData.resize(_size);
resource.read(&rawTileData[0], _size);
resource.close();
LOG("Initialized TileData");
Tile tile({0,0,0}, s_projection);
if (!scene->dataSources().empty()) {
source = scene->dataSources()[0];
auto task = source->createTask(tile.getID());
auto& t = dynamic_cast<DownloadTileTask&>(*task);
t.rawTileData = std::make_shared<std::vector<char>>();
std::swap(*t.rawTileData, rawTileData);
tileData = source->parse(*task, s_projection);
}
LOG("Ready");
}
void Tile::build(StyleContext& _ctx, const Scene& _scene, const TileData& _data,
const DataSource& _source) {
// Initialize m_geometry
initGeometry(_scene.styles().size());
const auto& layers = _scene.layers();
_ctx.setGlobalZoom(m_id.s);
for (auto& style : _scene.styles()) {
style->onBeginBuildTile(*this);
}
DrawRuleMergeSet ruleSet;
for (const auto& datalayer : layers) {
if (datalayer.source() != _source.name()) {
continue;
}
for (const auto& collection : _data.layers) {
if (!collection.name.empty()) {
const auto& dlc = datalayer.collections();
bool layerContainsCollection =
std::find(dlc.begin(), dlc.end(), collection.name) != dlc.end();
if (!layerContainsCollection) {
continue;
}
}
for (const auto& feat : collection.features) {
ruleSet.apply(feat, _scene, datalayer, _ctx, *this);
}
}
}
for (auto& style : _scene.styles()) {
style->onEndBuildTile(*this);
}
for (auto& geometry : m_geometry) {
if (geometry) {
geometry->compileVertexBuffer();
}
}
}
void loadScene(const char* sceneFile) {
auto sceneRelPath = setResourceRoot(sceneFile);
auto sceneString = stringFromFile(sceneRelPath.c_str(), PathType::resource);
YAML::Node sceneNode;
try { sceneNode = YAML::Load(sceneString); }
catch (YAML::ParserException e) {
LOGE("Parsing scene config '%s'", e.what());
return;
}
scene = std::make_unique<Scene>();
SceneLoader::loadScene(sceneNode, *scene);
styleContext.initFunctions(*scene);
styleContext.setGlobalZoom(0);
source = scene->dataSources()[0];
}