How to get the info from xml tag ?

Hi all,

If I wish to use xml2struct lib https://www.mathworks.com/matlabcentral/fileexchange/28518-xml2struct, and

if I have the following xml file:

<edge id="juncons1" from="232207661" to="232207435" priority="7">
        <lane id="juncons1_0"/>
 <edge />

How to get the data 'id', 'from' and 'to' info from the edge tag.

I tried to use

xmlhandler = xml2struct( 'my_xml_file_path' );
xmledgeID = xmlhandler.net.edge.Attributes

but it didnt return the d="juncons1" from="232207661" to="232207435" info to the matlab

[Suresh]

hi, here what is my_xml_file_path?

can you please explain how can i define my_xml_file_path...i have working on reading xml file in matab script and i have to extract scenario_ts id:

pls help me

[Image Analyst]

@Suresh it's the name of your xml file, like

'C:\my data\wherever\myXMLFile.xml'

or whatever it is.

[Suresh]

@Image Analyst, thanks for your update..

xmlhandler = xml2struct( 'C:\UserData\git_ws\curvature_controller\source\curv_ctrl_mod_coord\tests\CurvCtrlModCoord_TL.xml' );

xmlscenario_tsID = xmlhandler.scenario_ts.Attributes

i am trying above code but i am getting like error

reference to non-existent field 'scenario_ts'.

Error in xml_in (line 20)

xmlscenario_tsID = xmlhandler.scenario_ts.Attributes

[Image Analyst]

@Suresh start your own discussion thread and attach your XML file, and m file, zipped up together.

If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this:

TUTORIAL: How to ask a question (on Answers) and get a fast answer

[Suresh]

@Image Analyst thanks for your suggestion, i have uploaded xml file and along with my code

i would like to extract scenario_ts under this tag i need data and need to save in one variable.

currently i m using matlab 2020b while running my code i m getting error like

reference to non-existent field 'scenario_ts'.

Error in xml_in (line 20)

xmlscenario_tsID = xmlhandler.scenario_ts.Attributes.

[Image Analyst]

@Suresh Rather than hijacxk @Lawrence Soon's 6 year old post, can you start a discussion thread of your own? I already have it working and I'll post it in your new discussion thread.

Answer 1

[Kojiro Saito]

First, you xml file is not ended with proper tag.

The last line

<edge />

should be changed to

</edge>

The whole xml file would be the following.

<edge id="juncons1" from="232207661" to="232207435" priority="7">
  <lane id="juncons1_0"/>
</edge>

Also, based on the xmlhandler structure,

xmledgeID = xmlhandler.edge.Attributes

will return the xml information properly.

xmledgeID = 

    struct with fields:

          from: '232207661'
            id: 'juncons1'
      priority: '7'
            to: '232207435'

[Suresh]

hi, here what is my_xml_file_path?

can you please explain how can i define my_xml_file_path...i have working on reading xml file in matab script and i have to extract scenario_ts id:

pls help me