Simulink problem: Blocks positions are not maintained after the model is saved.

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Marcelo 2018-1-24

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https://ww2.mathworks.cn/matlabcentral/answers/378742-simulink-problem-blocks-positions-are-not-maintained-after-the-model-is-saved

评论： Marcelo 2018-1-24

Hi,

I am with a problem related with blocks positions.

I have a Simulink model that I run a script to configure all its blocks positions.

When the execution of this script terminates, all the blocks are configure exactly as I want.

So I save and close the model.

The problem occoures when I open the model after that. Many of the blocks are not in the positions defined anymore when the model was saved.

Someone kowns why some positions changing when the model is opened?

Thank you

Marcelo Ávila

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Birdman 2018-1-24

Can you share your script?

Marcelo 2018-1-24

在 MATLAB Online 中打开

For example, one part of the code is like this:

load_system(model_name_no_extension);
% Positioning S-Function block
Block_current_Position = get_param(h_Block,'Position');
Block_new_Position     = Block_current_Position;
Block_new_Position(1)  = 1500;
Block_new_Position(3)  = 3000;
Block_new_Position(2)  = -32000;
Block_new_Position(4)  = 32000;
set_param(h_Block,'Position',Block_new_Position);
Block_LineHandles = get_param(h_Block,'LineHandles');
Block_PortHandles = get_param(h_Block,'PortHandles');
% Positioning inports of S-Function block
inport_delta = abs(get_param(Block_PortHandles.Inport(1),'Position') - get_param(Block_PortHandles.Inport(2),'Position'));
inport_delta = floor(inport_delta(2)/2) - 10; % Consider only height
for i = 1:1:length(Block_PortHandles.Inport)
    port_position               = get_param(Block_PortHandles.Inport(i),'Position');
    % Intermediate block
    line_info                   = get(Block_LineHandles.Inport(i));
    intermediate_block          = line_info.SrcBlockHandle;
    intermediate_block_position = [port_position(1)-500-200 port_position(2)-inport_delta port_position(1)-500 port_position(2)+inport_delta];
    set_param(intermediate_block,'Position',intermediate_block_position)
    % Initial block
    LineHandles                 = get(intermediate_block,'LineHandles');
    line_info                   = get(LineHandles.Inport);
    inicial_block               = line_info.SrcBlockHandle;
    inicial_block_position      = intermediate_block_position - [500 0 500 0];
    set_param(inicial_block,'Position',inicial_block_position)
end
save_system(model_name_no_extension);
close_system(model_name_no_extension);