how to transform files drom double to struct

i need to estrapolate data from matlab and use them in Qgis.

I need shapefile data and with shapewrite it doesn't work.

contourf(XX,YY,ZZ,100,'linecolor','none'); where XX,YY,ZZ are 181x151 double

qgis1=contourf(XX,YY,ZZ,100,'linecolor','none'); where qgis1 is 2x2479 double

shapewrite(qgis1,"contour_5km.shp");

i had a plot with contourf and this error:

Error using shapewrite

Expected input number 1, S, to be one of these types:

struct, table, mappoint, geopoint, mapshape, geoshape

Instead its type was double.

So, is there a method to convert a matrix double to a struct and obtain always a contourf graph?

Can anyone help me?

thanksss

Answer 1

[Balaji Udayagiri]

Hi Elissabetta

As per my understanding, you want to convert your double data into a datatype which is a valid input to shapewrite() function.

Since, shapewrite() function takes a table as input. I recommend using the array2table() function to convert the variable to table.

Alternatively, you can also look at this solution to convert it to a struct: https://in.mathworks.com/matlabcentral/answers/6501-convert-double-array-to-structure-array-for-use-in-shapewrite-fxn