MATLAB Answers

App designer Edit field, position

5 次查看（过去 30 天）
Eliska Paulikova
Eliska Paulikova ，2023-3-17
评论： Voss ，2023-3-19
thisFrame = read(vid, framesToRead(h));
pos1=app.CTRLVEditField.Value
str = strrep(pos1, '[', ''); % Odstranění závorek
str = strrep(str, ']', '');
values= split(str, ','); % Rozdělení řetězce podle čárky
pos = str2double(pos1) % Převod na čísla
cr=imcrop(thisFrame,pos);
Hello, I work in App designer, where I put into Edit filed the area I would like to crop in this type [1 2 3 4], but in the position cr=imcrop ... the matlab says
Error using images.internal.crop.parseInputsOverTwo>validateRectangle
Input number 2, RECT, is expected to contain 4 elements.
Error in images.internal.crop.parseInputsOverTwo (line 54)
validateRectangle(spatial_rect,2);
Error in imcrop (line 104)
images.internal.crop.parseInputsOverTwo(varargin{:});
How can I solve this problem. Thank you.

请先登录，再回答此问题。

采纳的回答

Voss
Voss 2023-3-17
Ran in:
pos1 = "[1 2 3 4]";
pos = str2num(pos1)
pos = 1×4
1 2 3 4

更多回答（0 个）

类别

Find more on Develop Apps Using App Designer in Help Center and File Exchange

标签

产品


版本

R2022b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by