Finding Line Source and Destination Port and Blocks

Hello All

Please let me know how to find a proper way to do so. How can I get

SourceBlock, DestinationBlock, and the Port in the destination block where the line is going and Port port from where it is coming in the Source Block.

I created a class called LineInformation as shown below. The idea being for each line a Simulink model this class holds the Source and Destination Block as well as the Source and Destination port Name in the class.

classdef LineInformation
    %   LineInfornation: Provides all the properties of a line
    %   Detailed explanation goes here

      properties
          % Identifier of the Line
          Identifier;

          % Source Block of the Line
          SourceBlock;

          % Source Port of the Line
          SourcePort;

          % Detination Block of the line 
          DestinationBlock;   

          % Detination Port of the line 
          DestinationPort;  
      end
  end

To find the class properties, I use the following function

function [allLineProperties] = GetLineInformation (systemName, systemDepth)
 % function [allLineProperties] = GetLineInformation (systemName, systemDepth)
 % Returns Objects of a Certain Model for a defined depth
 % systemName: systemName name without extension
 % systemDepth" Depth Level 
 %   0 for .slx file 
 %   1 for the Model Details
 %   2 for Sub Systems Details

   % Open simulink model vdp.mdl
   open_system(systemName)

   % Find all the line handles for this model
   allLines = find_system(systemName, 'SearchDepth', systemDepth,'FindAll', 'On', 'type', 'line');

   if (isempty(allLines))   
       return;
   end

   % Intialize Line Information Class
   allLineProperties = LineInformation;

   % Parse through lines and Assign the object properties. 
   for i = 1 : length(allLines)
       allLineProperties(i).Identifier =  allLines(i);  
       sourceData = get_param(allLineProperties(i).Identifier,'SrcBlockHandle');
       destinationData = get_param(allLineProperties(i).Identifier,'DstBlockHandle');
       sourcePortData = get_param(allLineProperties(i).Identifier,'SrcportHandle');
       destinationPortData = get_param(allLineProperties(i).Identifier,'DstportHandle');

       allLineProperties(i).SourceBlock =  get_param(sourceData, 'Name');
       allLineProperties(i).DestinationBlock =  get_param(destinationData, 'Name');
       allLineProperties(i).SourcePort =  get_param(sourcePortData, 'Name');
       allLineProperties(i).DestinationPort =  get_param(destinationPortData, 'Name');
   end

The problem is that, I do not get the DestinationPort or SourcePort they are always blank. (shown in the attachment).

Answer 1

[Maverick]

Hello

Please see the image for the relevance of source port and Dst port. The code is perfectly fine. The problem lies in the model. If the line connecting two blocks does not have any name, then the code

    allLineProperties(i).SourcePort =  get_param(sourcePortData, 'Name');
    allLineProperties(i).DestinationPort =  get_param(destinationPortData, 'Name');

will return empty string because they do not have any name associated to it. Please give some name to the line connecting two blocks in the model and you will not get an empty string