Module Development TutorialLet's demonstrate MZmine 2 module development by making a simple centroiding module. This module will take a continuous mode spectra represented by a continuous stream of data points which form m/z peaks, and convert it to centroided spectra, where each m/z peak is represened by a single data point (m/z and intensity pair). The algorithm used for centroiding is very simple: the intensity of all data points is summed over certain m/z interval and replaced with a single (centroid) data point. The width of this m/z interval will be the only parameter of our method.
We need to create 3 Java classes:
- Centroider.java - this class is the core of the module and implements the MZmineModule interface
- CentroiderParameters.java - this class contains the parameters of our method and implements the StorableParameterSet interface
- CentroiderTask.java - this class contains the actual data processing logic (executed by the task controller) and implements the Task interface
The commented source codes of these three classes follow: