imagesc graph axis setting probelm in Matlab Appdesigner

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...
%% Loop start
numRows = length(shiftedDistance);
numCols = app.MaxMeasCountEditField.Value;
if isempty(app.dataMatrix)
app.dataMatrix = nan(numRows, numCols);
end
app.stop_loop = false;
if isempty(app.Ascan_cnt)
app.Ascan_cnt = 0;
end
while app.Ascan_cnt <= app.MaxMeasCountEditField.Value && app.stop_loop == false
% Add new data on the dataMatrix
if app.Ascan_cnt > numCols
% If I need to add cols
app.dataMatrix = [app.dataMatrix, nan(numRows, 1)];
numCols = numCols + 1;
end
app.dataMatrix(:, app.Ascan_cnt + 1) = newData;
% NaN to Zero
app.dataMatrix(isnan(app.dataMatrix)) = 0;
% image update
imagesc(app.UIAxes3_1, [1 app.Ascan_cnt], [min(shiftedDistance) max(shiftedDistance)], app.dataMatrix);
% xlim set
if app.Ascan_cnt > 50
xlim(app.UIAxes3_1, [app.Ascan_cnt - 49 app.Ascan_cnt]);
else
xlim(app.UIAxes3_1, [1 50]);
end
% ylim set
ylim(app.UIAxes3_1, [min(shiftedDistance) max(shiftedDistance)]);
colormap(app.UIAxes3_1, 'gray');
axis(app.UIAxes3_1, 'tight');
set(app.UIAxes3_1, 'YDir', 'reverse');
clim(app.UIAxes3_1, [0, app.ImageScalingEditField.Value]);
...
My code is like those.
I have a problem on setting the X axis in the Matlab appdesigner imagesc.
I want to add measured datas one by one on the defined Matrix.
And, I want the initial X axis with 50 components, and moving through when components are over 50s.
But, the datas add along arbitrary value even not integer.
what is my problem?
  11 Comments
준홍
준홍 on 22 May 2024
The caution message said that this kind of variables can't use dot indexing.
VBBV
VBBV on 23 May 2024
Edited: VBBV on 23 May 2024

Ok. It may be for this reason, using sprintf function when you print to status text area value. This function prints output values in text or as character instead of numeric (double) values. Use without sprintf function as shown below

app.StatusTextArea.Value = app.Ascan_cnt

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Answers (1)

VBBV
VBBV on 23 May 2024
Edited: VBBV on 24 May 2024
@준홍Ok. It may be for this reason, using *sprintf* function when you print to status text area value. This function prints output values in text or as character instead of numeric (double) values. Use without |sprintf| function as shown below
app.StatusTextArea.Value = app.Ascan_cnt

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