Various doc work

src/nodes/beam_splitter.rs

+#![warn(missing_docs)]
 use std::collections::HashMap;
 
 use crate::{

src/nodes/detector.rs

+#![warn(missing_docs)]
 use crate::lightdata::LightData;
 use crate::{
     error::OpossumError,

src/nodes/dummy.rs

+#![warn(missing_docs)]
 use std::collections::HashMap;
 
 use crate::analyzer::AnalyzerType;

src/nodes/energy_meter.rs

+#![warn(missing_docs)]
 use crate::lightdata::LightData;
 use crate::{
     error::OpossumError,
@@ -16,7 +17,7 @@ pub enum Metertype {
     /// an ideal energy meter
     #[default]
     IdealEnergyMeter,
-    /// an ideal power meter
+    /// an ideal power meter (currently not used)
     IdealPowerMeter,
 }
 #[derive(Default)]

src/nodes/group.rs

@@ -349,10 +349,7 @@ impl NodeGroup {
                 self.incoming_edges(idx)
             };
             let node = self.g.node_weight(idx).unwrap();
-            // println!("Analyzing node {}", node.borrow().name());
-            // println!("Incoming edges {:?}", incoming_edges);
             let outgoing_edges = node.borrow_mut().analyze(incoming_edges, analyzer_type)?;
-            // println!("Outgoing edges: {:?}", outgoing_edges);
             let mut group_sinks = self.g.externals(Direction::Outgoing);
             // Check if node is group sink node
             if group_sinks.any(|gs| gs == idx) {

src/nodes/source.rs

+#![warn(missing_docs)]
 use std::collections::HashMap;
 use std::fmt::Debug;
 
@@ -12,7 +13,7 @@ type Result<T> = std::result::Result<T, OpossumError>;
 
 /// This node represents a source of light.
 ///
-/// Hence it has only one output port (out1) and no input ports. Source nodes usually are the first nodes of an optic scenery.
+/// Hence it has only one output port (out1) and no input ports. Source nodes usually are the first nodes of an [`OpticScenery`](crate::OpticScenery).
 ///
 /// ## Optical Ports
 ///   - Inputs
@@ -26,6 +27,19 @@ pub struct Source {
 
 impl Source {
     /// Creates a new [`Source`].
+    /// 
+    /// The light to be emitted from this source is defined in a [`LightData`] structure.
+    /// 
+    /// ## Example
+    /// 
+    /// ```rust
+    /// use opossum::{
+    /// lightdata::{DataEnergy, LightData},
+    /// nodes::Source,
+    /// spectrum::create_he_ne_spectrum};
+    /// 
+    /// let source=Source::new(LightData::Energy(DataEnergy {spectrum: create_he_ne_spectrum(1.0)}));
+    /// ```
     pub fn new(light: LightData) -> Self {
         Source {
             light_data: Some(light),

src/nodes/spectrometer.rs

+#![warn(missing_docs)]
 use uom::si::length::nanometer;
 
 use crate::lightdata::LightData;

src/optic_node.rs

@@ -22,7 +22,7 @@ impl OpticNode {
     ///
     /// # Examples
     ///
-    /// ```
+    /// ```rust
     /// use opossum::optic_node::OpticNode;
     /// use opossum::nodes::Dummy;
     ///