本文整理汇总了C++中LineString::get方法的典型用法代码示例。如果您正苦于以下问题：C++ LineString::get方法的具体用法？C++ LineString::get怎么用？C++ LineString::get使用的例子？那么, 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LineString的用法示例。
在下文中一共展示了LineString::get方法的4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:
Handle<Value> LineStringPoints::count(const Arguments& args)
{
HandleScope scope;
Handle<Object> parent = args.This()->GetHiddenValue(String::NewSymbol("parent_"))->ToObject();
LineString *geom = ObjectWrap::Unwrap<LineString>(parent);
return scope.Close(Integer::New(geom->get()->getNumPoints()));
}示例2: OGRPoint
Handle<Value> LineStringPoints::get(const Arguments& args)
{
HandleScope scope;
Handle<Object> parent = args.This()->GetHiddenValue(String::NewSymbol("parent_"))->ToObject();
LineString *geom = ObjectWrap::Unwrap<LineString>(parent);
OGRPoint *pt = new OGRPoint();
int i;
NODE_ARG_INT(0, "index", i);
if(i < 0 || i >= geom->get()->getNumPoints()) {
return scope.Close(Null());
}
geom->get()->getPoint(i, pt);
return scope.Close(Point::New(pt));
}示例3: Undefined
Handle<Value> LineStringPoints::reverse(const Arguments& args)
{
HandleScope scope;
Handle<Object> parent = args.This()->GetHiddenValue(String::NewSymbol("parent_"))->ToObject();
LineString *geom = ObjectWrap::Unwrap<LineString>(parent);
geom->get()->reversePoints();
return Undefined();
}示例4: NODE_THROW
Handle<Value> LineStringPoints::add(const Arguments& args)
{
HandleScope scope;
Handle<Object> parent = args.This()->GetHiddenValue(String::NewSymbol("parent_"))->ToObject();
LineString *geom = ObjectWrap::Unwrap<LineString>(parent);
int n = args.Length();
if(n == 0) {
return NODE_THROW("Point must be given");
} else if(n == 1) {
if(!args[0]->IsObject()) {
return NODE_THROW("Point, object, or array of points expected");
}
if(IS_WRAPPED(args[0], Point)){
//set from Point object
Point* pt = ObjectWrap::Unwrap<Point>(args[0]->ToObject());
geom->get()->addPoint(pt->get());
} else if (args[0]->IsArray()) {
//set from array of points
Handle<Array> array = Handle<Array>::Cast(args[0]);
int length = array->Length();
for (int i = 0; i < length; i++){
Handle<Value> element = array->Get(i);
if(!element->IsObject()) {
return NODE_THROW("All points must be Point objects or objects");
}
Handle<Object> element_obj = element->ToObject();
if(IS_WRAPPED(element_obj, Point)){
//set from Point object
Point* pt = ObjectWrap::Unwrap<Point>(element_obj);
geom->get()->addPoint(pt->get());
} else {
//set from object {x: 0, y: 5}
double x, y;
NODE_DOUBLE_FROM_OBJ(element_obj, "x", x);
NODE_DOUBLE_FROM_OBJ(element_obj, "y", y);
Handle<String> z_prop_name = String::NewSymbol("z");
if (element_obj->HasOwnProperty(z_prop_name)) {
Handle<Value> z_val = element_obj->Get(z_prop_name);
if (!z_val->IsNumber()) {
return NODE_THROW("z property must be number");
}
geom->get()->addPoint(x, y, z_val->NumberValue());
} else {
geom->get()->addPoint(x, y);
}
}
}
} else {
//set from object {x: 0, y: 5}
Handle<Object> obj = args[0]->ToObject();
double x, y;
NODE_DOUBLE_FROM_OBJ(obj, "x", x);
NODE_DOUBLE_FROM_OBJ(obj, "y", y);
Handle<String> z_prop_name = String::NewSymbol("z");
if (obj->HasOwnProperty(z_prop_name)) {
Handle<Value> z_val = obj->Get(z_prop_name);
if (!z_val->IsNumber()) {
return NODE_THROW("z property must be number");
}
geom->get()->addPoint(x, y, z_val->NumberValue());
} else {
geom->get()->addPoint(x, y);
}
}
} else {
//set x, y, z from numeric arguments
if(!args[0]->IsNumber()){
return NODE_THROW("Number expected for first argument");
}
if(!args[1]->IsNumber()){
return NODE_THROW("Number expected for second argument");
}
if(n == 2){
geom->get()->addPoint(args[0]->NumberValue(), args[1]->NumberValue());
} else {
if(!args[2]->IsNumber()){
return NODE_THROW("Number expected for third argument");
}
geom->get()->addPoint(args[0]->NumberValue(), args[1]->NumberValue(), args[2]->NumberValue());
}
}
return Undefined();
}