Handle<Value> DatasetBands::get(const Arguments& args)
{
HandleScope scope;
Handle<Object> parent = args.This()->GetHiddenValue(String::NewSymbol("parent_"))->ToObject();
Dataset *ds = ObjectWrap::Unwrap<Dataset>(parent);
if (ds->uses_ogr){
OGRDataSource* raw = ds->getDatasource();
if (!raw) {
return NODE_THROW("Dataset object has already been destroyed");
}
return Null();
} else {
GDALDataset* raw = ds->getDataset();
if (!raw) {
return NODE_THROW("Dataset object has already been destroyed");
}
int band_id;
NODE_ARG_INT(0, "band id", band_id);
GDALRasterBand *band = raw->GetRasterBand(band_id);
return scope.Close(RasterBand::New(band));
}
}
Handle<Value> MultiPoint::getGeometry(const Arguments& args)
{
HandleScope scope;
MultiPoint *geom = ObjectWrap::Unwrap<MultiPoint>(args.This());
int i;
NODE_ARG_INT(0, "index", i);
return scope.Close(Point::New(static_cast<OGRPoint*>(geom->this_->getGeometryRef(i)), false));
}
Handle<Value> LineStringPoints::resize(const Arguments& args)
{
HandleScope scope;
Handle<Object> parent = args.This()->GetHiddenValue(String::NewSymbol("parent_"))->ToObject();
LineString *geom = ObjectWrap::Unwrap<LineString>(parent);
int count;
NODE_ARG_INT(0, "point count", count)
geom->get()->setNumPoints(count);
return Undefined();
}
Handle<Value> Dataset::getRasterBand(const Arguments& args)
{
HandleScope scope;
GDALRasterBand *poBand;
int band_id;
NODE_ARG_INT(0, "band id", band_id);
Dataset *ds = ObjectWrap::Unwrap<Dataset>(args.This());
if(!ds->this_) return NODE_THROW("Dataset object has already been destroyed");
poBand = ds->this_->GetRasterBand(band_id);
if (poBand == NULL) {
return NODE_THROW("Specified band not found");
}
return scope.Close(RasterBand::New(poBand));
}
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));
}
Handle<Value> LineStringPoints::set(const Arguments& args)
{
HandleScope scope;
Handle<Object> parent = args.This()->GetHiddenValue(String::NewSymbol("parent_"))->ToObject();
LineString *geom = ObjectWrap::Unwrap<LineString>(parent);
int i;
NODE_ARG_INT(0, "index", i);
if(i < 0 || i >= geom->get()->getNumPoints()) {
return NODE_THROW("Point index out of range");
}
int n = args.Length() - 1;
if(n == 0) {
return NODE_THROW("Point must be given");
} else if(n == 1) {
if(!args[1]->IsObject()) {
return NODE_THROW("Point or object expected for second argument");
}
if(IS_WRAPPED(args[1], Point)){
//set from Point object
Point* pt = ObjectWrap::Unwrap<Point>(args[1]->ToObject());
geom->get()->setPoint(i, pt->get());
} else {
Handle<Object> obj = args[1]->ToObject();
//set from object {x: 0, y: 5}
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()->setPoint(i, x, y, z_val->NumberValue());
} else {
geom->get()->setPoint(i, x, y);
}
}
} else {
//set x, y, z from numeric arguments
if(!args[1]->IsNumber()){
return NODE_THROW("Number expected for second argument");
}
if(!args[2]->IsNumber()){
return NODE_THROW("Number expected for third argument");
}
if(n == 2){
geom->get()->setPoint(i, args[1]->NumberValue(), args[2]->NumberValue());
} else {
if(!args[3]->IsNumber()){
return NODE_THROW("Number expected for fourth argument");
}
geom->get()->setPoint(i, args[1]->NumberValue(), args[2]->NumberValue(), args[3]->NumberValue());
}
}
return Undefined();
}
