From 96123e1331eabbfb0f5104857035df42096c7548 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Fri, 4 Jul 2025 14:33:54 +0200
Subject: Improved geometry configuration setting

---
 c++/iterator.hpp          |  6 +++---
 c++/term_renderer.hpp     |  1 -
 examples/poiseulle_2d.cpp | 31 +++++++++++++++++++++++++------
 tests/iterator.cpp        |  2 +-
 4 files changed, 29 insertions(+), 11 deletions(-)

diff --git a/c++/iterator.hpp b/c++/iterator.hpp
index 01163cf..fcc50bc 100644
--- a/c++/iterator.hpp
+++ b/c++/iterator.hpp
@@ -5,10 +5,10 @@
 namespace kel {
 namespace lbm {
 template<typename Func>
-void iterate_over(Func&& func, const saw::data<sch::FixedArray<sch::UInt64,2u>>& start, const saw::data<sch::FixedArray<sch::UInt64,2u>>& end, const saw::data<sch::UInt64>& dist = {0u}){
+void iterate_over(Func&& func, const saw::data<sch::FixedArray<sch::UInt64,2u>>& start, const saw::data<sch::FixedArray<sch::UInt64,2u>>& end, const saw::data<sch::FixedArray<sch::UInt64,2u>>& dist = {{{0u,0u}}}){
 	// static_assert(D == 2u, "Currently a lazy implementation for AND combinations of intervalls.");
-	for(saw::data<sch::UInt64> i{start.at({0u}) + dist}; (i+dist) < end.at({0u}); ++i){
-		for(saw::data<sch::UInt64> j{start.at({0u}) + dist}; (j+dist) < end.at({1u}); ++j){
+	for(saw::data<sch::UInt64> i{start.at({0u}) + dist.at({0u})}; (i+dist.at({0u})) < end.at({0u}); ++i){
+		for(saw::data<sch::UInt64> j{start.at({1u}) + dist.at({1u})}; (j+dist.at({1u})) < end.at({1u}); ++j){
 			func({{i,j}});
 		}
 	}
diff --git a/c++/term_renderer.hpp b/c++/term_renderer.hpp
index f675a99..5cbb551 100644
--- a/c++/term_renderer.hpp
+++ b/c++/term_renderer.hpp
@@ -2,6 +2,5 @@
 
 namespace kel {
 namespace lbm {
-
 }
 }
diff --git a/examples/poiseulle_2d.cpp b/examples/poiseulle_2d.cpp
index 5670a3c..dcdc7c3 100644
--- a/examples/poiseulle_2d.cpp
+++ b/examples/poiseulle_2d.cpp
@@ -75,7 +75,7 @@ void set_geometry(saw::data<kel::lbm::sch::CavityFieldD2Q9>& latt){
 
 		info({0u}).set(2u);
 
-	}, {{0u,0u}}, meta, {1u});
+	}, {{0u,0u}}, meta, {{1u,1u}});
 
 	/**
 	 * Set fluid
@@ -86,7 +86,7 @@ void set_geometry(saw::data<kel::lbm::sch::CavityFieldD2Q9>& latt){
 
 		info({0u}).set(1u);
 
-	}, {{0u,0u}}, meta, {2u});
+	}, {{0u,0u}}, meta, {{2u,2u}});
 
 	/**
 	 * Set inflow
@@ -97,7 +97,7 @@ void set_geometry(saw::data<kel::lbm::sch::CavityFieldD2Q9>& latt){
 
 		info({0u}).set(3u);
 
-	}, {{1u,0u}}, {{2u,meta.at({1u})}}, {0u});
+	}, {{1u,0u}}, {{2u,meta.at({1u})}}, {{0u,2u}});
 
 	/**
 	 * Set outflow
@@ -108,7 +108,7 @@ void set_geometry(saw::data<kel::lbm::sch::CavityFieldD2Q9>& latt){
 
 		info({0u}).set(4u);
 
-	}, {{meta.at({0u})-2u,0u}}, {{meta.at({0u})-1u, meta.at({1u})}}, {0u});
+	}, {{meta.at({0u})-2u,0u}}, {{meta.at({0u})-1u, meta.at({1u})}}, {{0u,2u}});
 }
 
 void set_initial_conditions(saw::data<kel::lbm::sch::CavityFieldD2Q9>& latt){
@@ -141,16 +141,35 @@ int main(int argc, char** argv){
 
 	auto& conf = eo_conf.get_value();
 
-	converter<sch::Float64> conv{
+	converter<sch::Float64> conv {
 		{conf.template get<"delta_x">()},
 		{conf.template get<"delta_t">()}
 	};
 
 	print_lbm_meta<sch::Float64,sch::Descriptor<2u,9u>>(conv, {conf.template get<"kinematic_viscosity">()});
 
-	saw::data<sch::FixedArray<sch::UInt64,sch::D2Q9::D>> dim{{1024, 128}};
+	saw::data<sch::FixedArray<sch::UInt64,sch::D2Q9::D>> dim{{32u, 8u}};
 	saw::data<sch::CavityFieldD2Q9, saw::encode::Native> lattice{dim};
 
+	set_geometry(lattice);
+
+	/**
+	 * Print basic setup info
+	 */
+	iterate_over([&](const saw::data<sch::FixedArray<sch::UInt64,2u>>& index){
+		auto& cell = lattice(index);
+		auto& info = cell.template get<"info">();
+		auto info_v = info({0u}).get();
+		std::cout<<(static_cast<uint32_t>(info_v));
+
+		if( (index.at({1u}).get()+1u) < dim.at({1u}).get()){
+			std::cout<<" ";
+		}else{
+			std::cout<<"\n";
+		}
+
+	}, {{0u,0u}}, dim);
+
 	saw::data<sch::Array<sch::MacroStruct<sch::T,sch::D2Q9::D>,sch::D2Q9::D>> macros{dim};
 
 	for(uint64_t i = 0u; i < 256u; ++i){
diff --git a/tests/iterator.cpp b/tests/iterator.cpp
index 85037da..cd1cb7c 100644
--- a/tests/iterator.cpp
+++ b/tests/iterator.cpp
@@ -28,6 +28,6 @@ SAW_TEST("Iterate with Distance 1"){
 
 	lbm::iterate_over([](const saw::data<sch::FixedArray<sch::UInt64,2u>>& index){
 		std::cout<<"Index: "<<index.at({0u}).get()<<" "<<index.at({1u}).get()<<std::endl;
-	}, start, end, {1u});
+	}, start, end, {{1u,1u}});
 }
 }
-- 
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