How to get port names for built-in blocks?
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This is how I find port names in my Simulink model:
function [portNames] = findOutputPortNames(obj)
% Lists output port names for the target module.
simBlockH = get_param(target_module, 'Handle');
portH = find_system(simBlockH, 'LookUnderMasks', 'on', 'FollowLinks', 'on', 'SearchDepth', 1, 'BlockType', 'Outport');
portNames = cellstr(get_param(portH, 'Name'));
end
This works fine for my subblocks.
However, it does not work for blocks that are builtin, for example "Biquad Filter".
How do I get output (or input) port names for built-in blocks?
The above find_system() call returns empty result.
When I remove the BlockType parameter:
portH = find_system(simBlockH, 'LookUnderMasks', 'on', 'FollowLinks', 'on', 'SearchDepth', 1);
portNames = cellstr(get_param(portH, 'Name'));
I get the following output:
portNames =
5×1 cell array
{'PH20hz'}
{'Signal_in'}
{0×0 char}
{0×0 char}
{'Signal_out'}
How do I find out which are input ports, and which are output ports?
Or, instead of 'BlockType', 'Outport', should I use somethig else for 'BlockType'?
2 Kommentare
Fangjun Jiang
am 7 Okt. 2020
That is not port name. That is under masks Inport/Outport block name. Port names, if they exist, are different. What name you really want for built-in blocks?
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