Added Source and Detector Nodes

examples/pa_doublepass_graph.rs

-use opossum::nodes::{NodeDummy, NodeGroup, NodeReference};
+use opossum::nodes::{NodeDummy, NodeGroup, NodeReference, NodeSource, NodeDetector};
 use opossum::optic_node::OpticNode;
 use opossum::optic_scenery::OpticScenery;
 use opossum::analyzer::AnalyzerEnergy;
@@ -8,6 +8,7 @@ use std::io::Write;
 fn main() {
     let mut scenery = OpticScenery::new();
     scenery.set_description("PreAmp Doublepass section".into());
+    let n0 = scenery.add_element("LightSource", NodeSource);
     let n1 = scenery.add_element("TFP", NodeDummy);
     let n2 = scenery.add_element("19mm amp", NodeDummy);
     let n3 = scenery.add_element("Faraday", NodeDummy);
@@ -28,6 +29,7 @@ fn main() {
     node.set_inverted(true);
     let n2r = scenery.add_node(node);
 
+    scenery.connect_nodes(n0, "out1", n1, "front").unwrap();
     scenery.connect_nodes(n1, "rear", n2, "front").unwrap();
     scenery.connect_nodes(n2, "rear", n3, "front").unwrap();
     scenery.connect_nodes(n3, "rear", n4, "front").unwrap();
@@ -39,8 +41,11 @@ fn main() {
     let g_n1 = group.add_node(OpticNode::new("Beamsplitter", NodeDummy));
     let g_n2 = group.add_node(OpticNode::new("Lens", NodeDummy));
     let g_n3 = group.add_node(OpticNode::new("Lens2", NodeDummy));
+    let g_n4  = group.add_node(OpticNode::new("Det", NodeDetector));
+
     group.connect_nodes(g_n1, "rear", g_n2, "front").unwrap();
     group.connect_nodes(g_n2, "rear", g_n3, "front").unwrap();
+    group.connect_nodes(g_n3, "rear", g_n4, "in1").unwrap();
     scenery.add_node(OpticNode::new("CamBox", group));
     let path = "graph.dot";
     let mut output = File::create(path).unwrap();

src/nodes/mod.rs

@@ -3,8 +3,12 @@ mod node_dummy;
 mod node_reference;
 mod node_group;
 mod node_beam_splitter;
+mod node_source;
+mod node_detector;
 
 pub use node_dummy::NodeDummy;
 pub use node_reference::NodeReference;
 pub use node_group::NodeGroup;
-pub use node_beam_splitter::NodeBeamSplitter;
\ No newline at end of file
+pub use node_beam_splitter::NodeBeamSplitter;
+pub use node_source::NodeSource;
+pub use node_detector::NodeDetector;
\ No newline at end of file

src/nodes/node_detector.rs

+use crate::{optic_node::{Optical, Dottable}, optic_ports::OpticPorts};
+
+pub struct NodeDetector;
+
+impl Optical for NodeDetector {
+  fn node_type(&self) -> &str {
+      "light sink: detector"
+  }
+  fn ports(&self) -> OpticPorts {
+      let mut ports=OpticPorts::new();
+      ports.add_input("in1").unwrap();
+      ports
+  }
+  
+}
+
+impl Dottable for NodeDetector{}

src/nodes/node_source.rs

+use crate::{optic_node::{Optical, Dottable}, optic_ports::OpticPorts};
+
+pub struct NodeSource;
+
+impl Optical for NodeSource {
+  fn node_type(&self) -> &str {
+      "light source"
+  }
+  fn ports(&self) -> OpticPorts {
+      let mut ports=OpticPorts::new();
+      ports.add_output("out1").unwrap();
+      ports
+  }
+  
+}
+
+impl Dottable for NodeSource{}