How to apply fillColor tint?

[David_Entwistle]

Hello – my script reads a CSV file (which holds path names and corresponding tint values) and tries to apply a tint to each named path. All paths have previously been filled with 100% of a Spot color.

The script (below) builds on something that Muppet Mark generously supplied for someone else's question a while back. It works fine if I change the opacity of the objects, but not if I change the tints. Can anyone please show what I'm doing wrong?

Many thanks.

#target Illustrator 

applydatafile(); 

function applydatafile() { 

          if ( app.documents.length == 0 ) { return; } 

          var doc, csvFile, i, fileArray; 

          csvFile = File.openDialog("Choose the CSV file");

          if ( !csvFile.exists ) { return; } 

          fileArray = readInCSV( csvFile ); 

          doc = app.activeDocument; 

          // For each line of the data file...

          for ( i = 0; i < fileArray.length; i++ ) { 

          // ...get the named path [0] and give it property value [1]

          // this works: doc.pathItems.getByName( fileArray[0] ).opacity = fileArray[1];

          // but the following line has no effect:

          doc.pathItems.getByName( fileArray[0] ).fillColor.tint = fileArray[1]; 

          };   

}; 

function readInCSV( fileObj ) { 

          var fileArray, thisLine, csvArray; 

          fileArray =[]; 

          fileObj.open( 'r' ); 

          while( !fileObj.eof ) { 

                    thisLine = fileObj.readln(); 

                    csvArray = thisLine.split( ',' ); 

                    fileArray.push( csvArray ); 

          }; 

          fileObj.close(); 

          return fileArray; 

};

CSV file contents:

one,35

two,55

three,75

four,95

Message was edited by: David Entwistle to aid clarity.

[pixxxelschubser · Accepted solution]

Hi David_Entwistle

how about this?

applydatafile(); 
function applydatafile() {
    if ( app.documents.length == 0 ) { return; }
    var doc, csvFile, i, fileArray, pI;
    csvFile = File.openDialog("Choose the CSV file");
    if ( !csvFile.exists ) { return; }
    fileArray = readInCSV( csvFile );
    doc = app.activeDocument;
    // For each line of the data file...
    for ( i = 0; i < fileArray.length; i++ ) {
        pI = doc.pathItems.getByName( fileArray[0] );
        if (pI.fillColor.tint == 100) { // change only if tint value == 100
        pI.fillColor.tint = pI.fillColor.tint *(fileArray[1]/100);
        }
    }
}
function readInCSV( fileObj ) {
          var fileArray, thisLine, csvArray;
          fileArray =[];
          fileObj.open( 'r' );
          while( !fileObj.eof ) {
                    thisLine = fileObj.readln();
                    csvArray = thisLine.split( ',' );
                    fileArray.push( csvArray );
          }
                    $.writeln (fileArray);
          fileObj.close();
          return fileArray;
}

Have fun

[David_Entwistle]

Thank you! That does the trick, and very neatly.

(I had to add some semi-colons after the closing braces, lines 15–17, but not sure if that's something to do with my set-up.)

Very grateful for your coding and your time – thank you again.