本文整理汇总了C++中ofXml::getNumChildren方法的典型用法代码示例。如果您正苦于以下问题：C++ ofXml::getNumChildren方法的具体用法？C++ ofXml::getNumChildren怎么用？C++ ofXml::getNumChildren使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ofXml的用法示例。
在下文中一共展示了ofXml::getNumChildren方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: buildFromXml
void ofxShaderGraph::buildFromXml(ofXml x){
unordered_set<string> root_names;
x.reset();
unsigned long n = x.getNumChildren();
params.setName(x.getName());
//first pass, create all nodes and set defaults
for(unsigned long i=0; i<n; i++){
x.reset();
x.setToChild(i);
if(x.getName()!="node")
continue;
string name = x.getAttribute("name");
if(name==""){
cout<<"ofxShaderGraph warning: anonymous node in XML"<<endl;
continue;
}
ofxBaseShaderNode *node;
ofFbo::Settings node_fbo_settings = fbo_settings;
//check for modifications to fbo_settings
if(x.setTo("scale")){
float scale = x.getFloatValue();
node_fbo_settings.width*=scale;
node_fbo_settings.height*=scale;
x.setToParent();
}
string format = x.getAttribute("format");
if(format!=""){
if(format=="rgba8")
node_fbo_settings.internalformat = GL_RGBA8;
else if(format=="rgba16")
node_fbo_settings.internalformat = GL_RGBA16;
else if(format=="rgba32f")
node_fbo_settings.internalformat = GL_RGBA32F;
else if(format=="rgba16f")
node_fbo_settings.internalformat = GL_RGBA16F;
else if(format=="rgb8")
node_fbo_settings.internalformat = GL_RGB8;
else if(format=="rgb16")
node_fbo_settings.internalformat = GL_RGB16;
else if(format=="rgb32f")
node_fbo_settings.internalformat = GL_RGB32F;
else if(format=="rgb16f")
node_fbo_settings.internalformat = GL_RGB16F;
}
//check for node to swap buffers with
string swap_name = x.getAttribute("swap");
if(swap_name != ""){
//don't duplicate pairs
if(swap.count(swap_name)==0){
cout<<"ofxShaderGraph: "<<name<<" swaps with "<<swap_name<<endl;
swap.insert(pair<string, string>(name, swap_name));
}else{
cout<<"ofxShaderGraph warning: ignoring duplicate swap of"<<name<<" with "<<swap_name<<endl;
}
}
//check for color to init buffer to
if(x.setTo("init")){
float val = x.getFloatValue();
init.insert(pair<string, float>(name, val));
x.setToParent();
}
//check for shader path
string shader_name = x.getAttribute("shader");
if(shader_name == ""){
//shaderless node
node = new ofxConstantShaderNode(allocator, node_fbo_settings, name);
}
else{
ofShader *shader = new ofShader();
stringstream shader_path;
shader_path<<ofToDataPath("../../src/shader/")<<shader_name;
shader->load(shader_path.str());
if(!shader->isLoaded()){
cout<<"ofxShaderGraph warning: shader "<<shader_name<<" failed to load from path "<<shader_path.str()<<endl;
}
else{
cout<<"ofxShaderGraph: loaded shader "<<shader_name<<endl;
}
node = new ofxBaseShaderNode(allocator, node_fbo_settings, name, shader);
}
//grab all of the new node's parameters
params.add(node->getParameterGroup());
//put it in the map from names to nodes
nodes.insert(pair<string, ofxBaseShaderNode*>(name, node));
//everything goes in root_names, to be removed when is appears as an input
root_names.insert(name);
cout<<"ofxShaderGraph: inserted node "<<name<<endl;
//set defaults
if(x.setTo("defaults") && x.setToChild(0)){
do{
string param_type = x.getName();
string param_name = x.getAttribute("name");
if(param_type=="float"){
float v = x.getFloatValue();
node->setParameter(param_name, v);
//.........这里部分代码省略.........