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392 lines
13 KiB
392 lines
13 KiB
#pragma once |
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#include "DataAdapters/ncfilealt.h" |
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#include "mdatetime.h" |
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#include "simple2ddata.h" |
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#include "specfunc.h" |
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#include "vartype.h" |
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#include <regex.h> |
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#include <set> |
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#include <stdlib.h> |
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#include <sys/types.h> |
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using michlib::Ceil; |
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using michlib::Floor; |
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using michlib::int2; |
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using michlib::MDateTime; |
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using michlib::NCFileA; |
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using michlib::ToGeoDomainNeg; |
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class NEMOData |
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{ |
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enum Type |
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{ |
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TYPE_UNKNOWN, |
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TYPE_DT, |
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TYPE_NRT, |
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TYPE_NRT6 |
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}; |
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std::vector<NCFileA> nc; |
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size_t xb, yb, xe, ye, layer; |
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std::vector<real> depths; |
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std::vector<MDateTime> times; |
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size_t nx; |
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Type type = TYPE_UNKNOWN; |
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class EnvVar |
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{ |
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MString name, oldvalue; |
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bool activated, saved; |
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public: |
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EnvVar(): activated(false) {} |
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~EnvVar() { Deactivate(); } |
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void Activate(const MString& var, const MString& val) |
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{ |
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if(activated) Deactivate(); |
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name = var; |
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char* curval = getenv(name.Buf()); |
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if(nullptr == curval) |
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saved = false; |
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else |
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{ |
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oldvalue = curval; |
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saved = true; |
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} |
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setenv(name.Buf(), val.Buf(), 1); |
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} |
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void Deactivate() |
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{ |
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if(!activated) return; |
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if(saved) |
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setenv(name.Buf(), oldvalue.Buf(), 1); |
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else |
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unsetenv(name.Buf()); |
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activated = false; |
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} |
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}; |
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EnvVar proxy; |
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public: |
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using Data = Simple2DData; |
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private: |
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template<class DataType> Data ReadVarRaw(const NCFileA& f, const MString& name, size_t i, bool nodepth) const |
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{ |
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real unitmul = 1.0; |
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DataType fill; |
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real offset = 0.0, scale = 1.0; |
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{ |
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auto a_fill = f.A<DataType>(name, "_FillValue"); |
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auto a_offset = f.A<double>(name, "add_offset"); |
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auto a_scale = f.A<double>(name, "scale_factor"); |
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if(!a_fill) return Data(); |
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fill = a_fill; |
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if(a_offset) offset = a_offset; |
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if(a_scale) scale = a_scale; |
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} |
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auto unit = f.A<MString>(name, "units"); |
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if(unit && unit.Get() == "m s-1") unitmul = 100.0; |
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Data data((xb < xe) ? (xe - xb + 1) : (nx + xe - xb + 1), ye - yb + 1, Lonb(), Latb(), 1.0 / 12.0, 1.0 / 12.0); |
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if(xb < xe) |
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{ |
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auto var = nodepth ? f.V<DataType>(name, {"longitude", xb, xe - xb + 1}, {"latitude", yb, ye - yb + 1}, {"time", i, 1}) |
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: f.V<DataType>(name, {"longitude", xb, xe - xb + 1}, {"latitude", yb, ye - yb + 1}, {"time", i, 1}, {"depth", layer, 1}); |
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if(!var) return Data(); |
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if(var.DimLen(0) != data.Nx() || var.DimLen(1) != data.Ny()) return Data(); |
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for(size_t ix = 0; ix < var.DimLen(0); ix++) |
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for(size_t iy = 0; iy < var.DimLen(1); iy++) |
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{ |
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DataType v = var(ix, iy); |
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data(ix, iy) = (v == fill) ? Data::Fillval() : ((v * scale + offset) * unitmul); |
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} |
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} |
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else |
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{ |
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auto var1 = nodepth ? f.V<DataType>(name, {"longitude", xb}, {"latitude", yb, ye - yb + 1}, {"time", i, 1}) |
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: f.V<DataType>(name, {"longitude", xb}, {"latitude", yb, ye - yb + 1}, {"time", i, 1}, {"depth", layer, 1}); |
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auto var2 = nodepth ? f.V<DataType>(name, {"longitude", 0, xe + 1}, {"latitude", yb, ye - yb + 1}, {"time", i, 1}) |
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: f.V<DataType>(name, {"longitude", 0, xe + 1}, {"latitude", yb, ye - yb + 1}, {"time", i, 1}, {"depth", layer, 1}); |
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if(!(var1 && var2)) return Data(); |
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if((var1.DimLen(0) + var2.DimLen(0)) != data.Nx() || var1.DimLen(1) != data.Ny() || var2.DimLen(1) != data.Ny()) return Data(); |
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for(size_t ix = 0; ix < var1.DimLen(0); ix++) |
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for(size_t iy = 0; iy < var1.DimLen(1); iy++) |
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{ |
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DataType v = var1(ix, iy); |
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data(ix, iy) = (v == fill) ? Data::Fillval() : ((v * scale + offset) * unitmul); |
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} |
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for(size_t ix = 0; ix < var2.DimLen(0); ix++) |
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for(size_t iy = 0; iy < var2.DimLen(1); iy++) |
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{ |
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DataType v = var2(ix, iy); |
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data(ix + var1.DimLen(0), iy) = (v == fill) ? Data::Fillval() : ((v * scale + offset) * unitmul); |
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} |
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} |
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return data; |
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} |
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public: |
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Data ReadVar(const MString& name, size_t i) const |
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{ |
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if(!isOk()) return Data(); |
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bool nodepth = false; |
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for(const auto& f: nc) |
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{ |
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auto head = f.Header(); |
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for(const auto& v: head.Variables()) |
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if(v.Name() == name) |
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{ |
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if(v.Dimensions().size() == 3) nodepth = true; |
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if(v.Type().Id() == NC_SHORT) return ReadVarRaw<int2>(f, name, i, nodepth); |
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if(v.Type().Id() == NC_FLOAT) return ReadVarRaw<float>(f, name, i, nodepth); |
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} |
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} |
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return Data(); |
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} |
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Data ReadVar(const MString& name, const std::vector<size_t>& tindex) const |
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{ |
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Averager<Data> out; |
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if(tindex.size() == 0 || !isOk()) return out; |
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for(size_t i = 0; i < tindex.size(); i++) |
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{ |
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Data dat = ReadVar(name, tindex[i]); |
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if(!dat) return Data(); |
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out.Add(dat); |
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} |
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out.Div(); |
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return out; |
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} |
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public: |
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NEMOData() = default; |
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// TODO: RetVal |
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bool Open(const MString& stype, const MString& cred, const MString& proxyurl = "") |
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{ |
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nc.clear(); |
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if(proxyurl.Exist()) proxy.Activate("all_proxy", proxyurl); |
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if(stype == "DT") |
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{ |
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NCFileA newnc; |
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newnc.Reset("https://" + cred + "@my.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy_my_0.083_P1D-m"); |
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if(!newnc) return false; |
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nc.push_back(std::move(newnc)); |
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type = TYPE_DT; |
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} |
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if(stype == "NRT") |
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{ |
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std::vector<MString> urls{"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy-cur_anfc_0.083deg_P1D-m", |
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"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy-thetao_anfc_0.083deg_P1D-m", |
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"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy-so_anfc_0.083deg_P1D-m", |
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"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy_anfc_0.083deg_P1D-m", |
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"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy-wcur_anfc_0.083deg_P1D-m"}; |
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for(const auto& url: urls) |
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{ |
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NCFileA newnc; |
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newnc.Reset(url); |
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if(!newnc) |
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{ |
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nc.clear(); |
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return false; |
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} |
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nc.push_back(std::move(newnc)); |
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} |
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type = TYPE_NRT; |
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} |
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if(stype == "NRT6") |
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{ |
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std::vector<MString> urls{"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy-cur_anfc_0.083deg_PT6H-i", |
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"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy-thetao_anfc_0.083deg_PT6H-i", |
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"https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy-so_anfc_0.083deg_PT6H-i"}; |
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for(const auto& url: urls) |
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{ |
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NCFileA newnc; |
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newnc.Reset(url); |
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if(!newnc) |
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{ |
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nc.clear(); |
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return false; |
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} |
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nc.push_back(std::move(newnc)); |
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} |
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type = TYPE_NRT6; |
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} |
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auto rdepths = nc[0].V<float>("depth"); |
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if(!rdepths) |
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{ |
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nc.clear(); |
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return false; |
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} |
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depths.resize(rdepths.DimLen(0)); |
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for(size_t i = 0; i < depths.size(); i++) depths[i] = rdepths(i); |
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auto timeD = nc[0].V<double>("time"); |
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auto timeF = nc[0].V<float>("time"); |
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if(!(timeD || timeF)) |
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{ |
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nc.clear(); |
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return false; |
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} |
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MDateTime refdate("1950-01-01"); |
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timeD ? times.resize(timeD.DimLen(0)) : times.resize(timeF.DimLen(0)); |
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for(size_t i = 0; i < times.size(); i++) times[i] = refdate + static_cast<time_t>(timeD ? timeD(i) : timeF(i)) * 3600; |
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return true; |
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} |
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MString Info() const |
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{ |
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MString d; |
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for(size_t i = 0; i < NDepths(); i++) d += MString(" ") + "(" + i + " " + Depth(i) + ")"; |
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std::set<VarType> vars; |
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for(const auto& f: nc) |
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{ |
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auto head = f.Header(); |
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for(const auto& v: head.Variables()) |
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{ |
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if(v.Name() == "thetao") vars.emplace("temp"); |
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if(v.Name() == "so") vars.emplace("sal"); |
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if(v.Name() == "mlotst") vars.emplace("mld"); |
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if(v.Name() == "zos") vars.emplace("ssh"); |
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if(v.Name() == "wo") vars.emplace("w"); |
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} |
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} |
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MString svars; |
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{ |
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bool first = true; |
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for(const auto& v: vars) |
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{ |
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svars += (first ? "" : ", ") + v.ShortName(); |
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first = false; |
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} |
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} |
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// clang-format off |
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return |
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"Dataset: " + Title() + "\n" + |
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" Begin date: " + Time(0).ToString() + "\n" + |
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" End date: " + Time(NTimes()-1).ToString() + "\n" + |
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" Time step: " + Timestep() + " seconds\n" + |
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" Time moments: " + NTimes() + "\n" + |
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" Depths:" + d + "\n" + |
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" Supported variables: " + svars; |
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// clang-format on |
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} |
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MString Dump() const |
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{ |
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// clang-format off |
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return |
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"Current settings:\n" + MString() + |
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" Longitudes: from " + Lonb() + " (" + xb + ") to "+ Lone() + " (" + xe + ")\n" + |
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" Latitudes: from " + Latb() + " (" + yb + ") to "+ Late() + " (" + ye + ")\n" + |
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" Depth: layer " + layer + ", depth " + Depth() + " m\n"; |
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// clang-format on |
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} |
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bool SetRegion(real lonbin, real lonein, real latb, real late, real depth) |
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{ |
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if(!isOk()) return false; |
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real lonb = ToGeoDomainNeg(lonbin), lone = ToGeoDomainNeg(lonein); |
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size_t xb_, xe_, yb_, ye_, layer_ = 0; |
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yb_ = static_cast<size_t>(Floor((latb + 80.0) * 12.0)); |
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ye_ = static_cast<size_t>(Ceil((late + 80.0) * 12.0)); |
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if(ye_ > 2040) ye_ = 2040; |
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if(yb_ >= ye_) return false; |
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xb_ = static_cast<size_t>(Floor((lonb + 180.0) * 12.0)); |
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xe_ = static_cast<size_t>(Ceil((lone + 180.0) * 12.0)); |
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if(xb_ == xe_) return false; |
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if(depth < 0.0 || depth > depths.back()) |
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layer_ = (depth < 0.0) ? 0 : (depths.size() - 1); |
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else |
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for(size_t i = 0; i < depths.size() - 1; i++) |
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{ |
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if(depth >= depths[i] && depth <= depths[i + 1]) |
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{ |
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layer_ = (depth - depths[i] <= depths[i + 1] - depth) ? i : (i + 1); |
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break; |
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} |
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} |
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xb = xb_; |
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xe = xe_; |
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yb = yb_; |
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ye = ye_; |
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layer = layer_; |
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return true; |
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} |
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real Lonb() const { return isOk() ? (-180.0 + xb / 12.0) : -1000.0; } |
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real Lone() const { return isOk() ? (-180.0 + xe / 12.0) : -1000.0; } |
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real Latb() const { return isOk() ? (-80.0 + yb / 12.0) : -1000.0; } |
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real Late() const { return isOk() ? (-80.0 + ye / 12.0) : -1000.0; } |
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size_t Xb() const { return isOk() ? xb : 0; } |
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size_t Xe() const { return isOk() ? xe : 0; } |
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size_t Yb() const { return isOk() ? yb : 0; } |
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size_t Ye() const { return isOk() ? ye : 0; } |
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size_t Nx() const { return isOk() ? ((xb < xe) ? (xe - xb + 1) : (nx + xe - xb + 1)) : 0; } |
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size_t Ny() const { return isOk() ? (ye - yb + 1) : 0; } |
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real Depth(size_t l) const { return isOk() ? depths[l] : -1000.0; } |
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real Depth() const { return Depth(layer); } |
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size_t Layer() const { return layer; } |
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time_t Timestep() const { return isOk() ? (times[1] - times[0]) : 0; } |
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MDateTime Time(size_t i) const |
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{ |
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if(!isOk() || i >= times.size()) return MDateTime(); |
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return times[i]; |
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} |
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bool isOk() const { return nc.size() > 0; } |
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explicit operator bool() const { return nc.size() > 0; } |
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size_t NDepths() const { return depths.size(); } |
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size_t NTimes() const { return times.size(); } |
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template<vartype::Vartype vt> Data Read(size_t it) const = delete; |
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template<vartype::Vartype vt> Data Read(const std::vector<size_t>& tindex) const = delete; |
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MString Title() const |
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{ |
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switch(type) |
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{ |
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case(TYPE_DT): return "NEMO Delayed time, daily mean (DT)"; |
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case(TYPE_NRT): return "NEMO Near-real time, daily mean (NRT)"; |
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case(TYPE_NRT6): return "NEMO Near-real time, 6h resolution (NRT6)"; |
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default: return "No title"; |
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} |
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} |
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static real Fillval() { return Data::Fillval(); } |
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}; |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::U>(size_t it) const { return ReadVar("uo", it); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::V>(size_t it) const { return ReadVar("vo", it); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::TEMP>(size_t it) const { return ReadVar("thetao", it); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::SAL>(size_t it) const { return ReadVar("so", it); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::MLD>(size_t it) const { return ReadVar("mlotst", it); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::SSH>(size_t it) const { return ReadVar("zos", it); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::W>(size_t it) const { return ReadVar("wo", it); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::U>(const std::vector<size_t>& tindex) const { return ReadVar("uo", tindex); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::V>(const std::vector<size_t>& tindex) const { return ReadVar("vo", tindex); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::TEMP>(const std::vector<size_t>& tindex) const { return ReadVar("thetao", tindex); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::SAL>(const std::vector<size_t>& tindex) const { return ReadVar("so", tindex); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::MLD>(const std::vector<size_t>& tindex) const { return ReadVar("mlotst", tindex); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::SSH>(const std::vector<size_t>& tindex) const { return ReadVar("zos", tindex); } |
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template<> inline NEMOData::Data NEMOData::Read<vartype::Vartype::W>(const std::vector<size_t>& tindex) const { return ReadVar("wo", tindex); }
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