xml2struct does not return all children

Hello,

I am trying to read a .xml file into a Matlab structure using xml2struct (from https://it.mathworks.com/matlabcentral/fileexchange/28518-xml2struct). It runs without errors on my input xml file (listed below since I was not abel to attach it), but the output does not have all the children in my xml file. I see only Volume, but not all the others (Vertices, Map_data, Map_color, Map_status, Normals, Polygons, Surface_of_origin).

Could you please tell me how to fix xml2str ? Thank you,

Luca

My input xml file is the following (I could not attach it):

<?xml version="1.0" encoding="UTF-8"?>
<DIF>
  <DIFHeader>
    <Version>SJM_DIF_5.0</Version>
  </DIFHeader>
  <DIFBody>
    <Volumes number="1">
      <Volume name="Surface1" color="">
        <!-- St. Jude Medical Dx Landmark Geo data export; file format revision 0 -->
        <!-- Exported from study study_dwsG600217_2020_01_09_11_12_22 -->
        <!-- 4x4 column-major matrix A that transforms "model coordinates" -->
        <!-- xyz_vert to EnSite application display coordinates -->
        <!-- xyz_displ (left-superior-anterior).  Upper left 3x3 -->
        <!-- submatrix is rotation; right column is translation from sysRef. -->
        <!-- [ x_displ ]     [ A0  A4  A8  A12 ]  [ x_vert ] -->
        <!-- [ y_displ ]  =  [ A1  A5  A9  A13 ]  [ y_vert ] -->
        <!-- [ z_displ ]     [ A2  A6  A10 A14 ]  [ z_vert ] -->
        <!-- [ 1.0     ]     [ A3  A7  A11 A15 ]  [ 1.0    ] -->
        <AP_MapViewMatrix> 1.000000 0.000000 0.000000 0.000000 0.000000 0.000000 -1.000000 0.000000 0.000000 1.000000 0.000000 0.000000 16.248789 -451.386292 0.000000 1.000000 </AP_MapViewMatrix>
        <Vertices number="10">
           -19.0210  -33.6089  447.5374 
           -18.0380  -33.3185  447.4422 
           -19.2899  -32.4262  447.7701 
           -20.8341  -33.6710  447.8590 
           -20.1785  -34.4075  447.8537 
           -18.9832  -34.7589  447.9247 
           -17.8236  -34.3006  447.8483 
           -20.1823  -33.1717  447.7606 
           -17.1600  -33.2211  447.7111 
           -18.5132  -32.7275  447.4237            
        </Vertices>
        <!-- Data values at each vertex of DxL map LAT Isochronal -->
        <Map_data number="10">
          -25.71685410 
          -31.93716621 
          -32.62400055 
          -30.80163956 
          -31.13931465 
          -30.83820915 
          -29.15049171 
          -24.14959908 
          -29.09409142 
          -26.68566704 
        </Map_data>
        <!-- Color values at each vertex of DxL map LAT Isochronal -->
        <Map_color number="13813">
          0.4626 
          0.4458 
          0.4905 
          0.4822 
          0.4896 
          0.5309 
          0.6535 
          0.5323 
          0.5914 
          0.5700 
        </Map_color>
        <!-- Color High and Low values -->
        <Color_high_low number="2">
          -50.8110  -10.0140
        </Color_high_low>
        <!-- Map_status for each vertex: 0=good, 1=scar (lowV_id), 2=unsampled (beyond InterpDist)-->
        <Map_status number="13813">
          0 
          0 
          0 
          0 
          0 
          0 
          0 
          0 
          0 
          0 
        </Map_status>
        <Normals number="13813">
           0.630414  0.432509  0.644604 
           0.435386  0.798371  0.415984 
           0.044542  0.176005  0.983381 
           -0.282123  -0.250817  0.926012 
           0.220632  -0.129819  0.966679 
           -0.067752  -0.160089  0.984775 
           -0.347585  -0.134141  0.928004 
           -0.737802  0.404313  0.540536 
           0.576400  0.757950  0.305408 
           -0.338783  0.184557  0.922586 
        </Normals>
        <Polygons number="11">
          3 10 1
          10 2 1
          8 5 4
          6 5 1
          2 7 1
          2 9 7
          1 5 8
          3 1 8
          1 7 6
          3 4 8
          3 4 10
        </Polygons>
        <!-- Surface of origin for each polygon (indexed from 0): -->
        <Surface_of_origin number="11">
          1 
          1 
          1 
          1 
          1 
          1 
          1 
          1 
          1 
          1 
          1 
        </Surface_of_origin>
      </Volume>
    </Volumes>
    <Labels number="0">
    </Labels>
    <ObjectMap>
      <Rotation>1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000</Rotation>
      <Translation>0.000000 0.000000 0.000000</Translation>
      <Scaling>1.000000 1.000000 1.000000</Scaling>
      <MD5Signature></MD5Signature>
    </ObjectMap>
  </DIFBody>
</DIF>

Answer 1

[Harshendra Shah]

There is an updated version of xml2struct is available.

https://www.mathworks.com/matlabcentral/fileexchange/58700-xml2struct-with-bug-fix-and-added-features

There was some limitations in the previous versions that has been solved in this version:

1. Solved the issue that when comment is present, other data will be lost.

2. Fixed the " Undefined function 'toCharArray' for input arguments of type 'double'. " issue.

3. Added support for xml string.

I tried using this updated version and it is converting the xml file correctly.

You can also try using xmlread, if it helps in your use case.

https://www.mathworks.com/help/matlab/ref/xmlread.html

I hope this helps.