Add line between blocks using handles

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Chiara 2013-5-15

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https://ww2.mathworks.cn/matlabcentral/answers/75830-add-line-between-blocks-using-handles

评论： Kishankumar Dholariya 2021-10-28

Hi, I would like to connect blocks using their handles. Do you know if it's possible?

I know that add_line function uses ports but my script is a loop and when I add two same blocks, I use add_block adding (....,'MakeNameUnique','on'), hence I can't know block's name in order to call its own port in add_line.

What I am trying to do now is to get blocks handle in sequence through gcbh, from departure to arrival block, and I want to use handles in place of ports. Can anyone help me?

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Chiara 2013-5-15

编辑：Chiara 2013-5-15

path=getfullname(handle)

It returns 'sys/blockname'

Is there a way to have only blockname?

In add_line arguments I should add 'blockname/Portnum', shouldn't I?

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Answer 1

Kaustubha Govind 2013-5-15

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Instead of using gcbh, please use the return argument of add_block, which will be the handle to the newly created block. To get the name of the block, you can use get_param(handle, 'Name'), to get the full path to its parent, you can use get_param(handle, 'Parent').

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Kaustubha Govind 2013-5-29

在 MATLAB Online 中打开

The parent is still only 'new', the block itself is named 'source1' in your case. You can construct the full path to the block by concatenating the two strings returned by get_param(h,'Parent') and get_param(h,'Name'). To add the line:

    %Assuming both blocks have same parent  
    add_line(get_param(h1,'Parent'), ...
            [get_param(h1,'Name') '/1'], ...
            [get_param(h2,'Name') '/1']);

Kishankumar Dholariya 2021-10-28

how to connect Trigger port with inport? Trigger port is not connecting with this method.

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Answer 2

Jianguang Ban 2019-3-14

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https://ww2.mathworks.cn/matlabcentral/answers/75830-add-line-between-blocks-using-handles#answer_365267

编辑：Jianguang Ban 2019-3-14

For this question i wrote a simple script to show how to create a model and add some inputs and outputs, and add lines for each port to a specified block. this script was run with correct results:

ModelName = 'SpdCtrl';

new_system(ModelName);

open_system(ModelName);

component_dest_name = strcat(ModelName,'/',ModelName);

%% Create and add main block

topsystemblk = add_block('Simulink/Ports & Subsystems/Subsystem',component_dest_name,'position',[165 109 600 700]);

%% Create and add inporting blocks and lines from the dependencies of main component

Horizontal = 165;

Vertical = 150;

N = 200;

M = 165;

width = N - Horizontal;

height = M - Vertical;

vertical_shift = 0;

horizontal_shift = 0;

for i = 1:1:5

vertical_shift = 50*(i-1);

horizontal_shift = 100*(i-1);

inport_dest_name = strcat(component_dest_name,'/',strcat('In',num2str(i)));

inportblk = add_block('Simulink/Ports & Subsystems/In1',inport_dest_name,'position',[Horizontal Vertical+vertical_shift N M+vertical_shift]);

terminator_dest_name = strcat(component_dest_name,'/',strcat('Terminator',num2str(i)));

terminatorblk = add_block('Simulink/Sinks/Terminator',terminator_dest_name,'position',[Horizontal+100 Vertical+vertical_shift N+100 M+vertical_shift]);

% example: add_line(component_name,'In1/1','Terminator1/1');

add_line(component_dest_name,strcat('In',num2str(i),'/1'),strcat('Terminator',num2str(i),'/1'));

end