script with Magic Wand tool ?

[Gast]

I'm new and I need help with a script that using Magic Wand Tool (tolerance 255, anti alias , contiguous)  click at middle center every image. Many thanks previous ! My images are transparent with many objects in each and I just want to choose the middle_center object and eliminate the others, so i need this scripts.

[JJMack]

I think you woul need to create a function from Scriptlistener code for the magic wand tool where your working with units pixels and you  pass the x and y pixel values for the document center when you use the function. Something like

function MagicWand(x,y) {

/ =======================================================

var idsetd = charIDToTypeID( "setd" );

    var desc425 = new ActionDescriptor();

    var idnull = charIDToTypeID( "null" );

        var ref134 = new ActionReference();

        var idChnl = charIDToTypeID( "Chnl" );

        var idfsel = charIDToTypeID( "fsel" );

        ref134.putProperty( idChnl, idfsel );

    desc425.putReference( idnull, ref134 );

    var idT = charIDToTypeID( "T   " );

        var desc426 = new ActionDescriptor();

        var idHrzn = charIDToTypeID( "Hrzn" );

        var idPxl = charIDToTypeID( "#Pxl" );

        desc426.putUnitDouble( idHrzn, idPxl, 583.000000 );  <------------- replace the hard coded 583 with var X

        var idVrtc = charIDToTypeID( "Vrtc" );

        var idPxl = charIDToTypeID( "#Pxl" );

        desc426.putUnitDouble( idVrtc, idPxl, 332.000000 ); <--------------- replace the hard coded 332 with vat y

    var idPnt = charIDToTypeID( "Pnt " );

    desc425.putObject( idT, idPnt, desc426 );

    var idTlrn = charIDToTypeID( "Tlrn" );

    desc425.putInteger( idTlrn, 255 );

    var idAntA = charIDToTypeID( "AntA" );

    desc425.putBoolean( idAntA, true );

executeAction( idsetd, desc425, DialogModes.NO );

}

Also use your own Scriptlistener code make sure of the all setting used point sample size, only current layer,  antialias, etc.

Message was edited by: JJMack

[pixxxelschubser]

@JJMack,

why you do not work with percent?

Give this line 13-17 (in your code) a chance.

        var idPxl = charIDToTypeID( "#Prc" );
        desc426.putUnitDouble( idHrzn, idPxl, 50 );
        var idVrtc = charIDToTypeID( "Vrtc" );
        var idPxl = charIDToTypeID( "#Prc" );
        desc426.putUnitDouble( idVrtc, idPxl, 50 );

[JJMack]

If you want to work and switch between units that is fine.  I normally work with absolute pixels.  When things are relative particularly percent you may stumble when finding a document orientation and aspect ratio for width is 100% and height is 100%  is a square world NO!

[Gast]

Thanks Mr.JJMack for your help ! I dont know much about scripts and fuction also . After some trials with your suggestion, it's worked !

also thanks schubser . Wish all you luck from Vietnam

[JJMack]

I think you may have some problem look at what was selected in this screen capture note sample size is as large as can be

[Michael_L_Hale]

To have better control over what is selected you need to add other arguments to the scriptlistener function.

function magicWand(x,y,tolerance,anit_alias,contiguous,sampleAll) {
    if(arguments.length < 2) return;// make sure have x,y - other arguments are optional
    if(undefined == tolerance) var tolerance = 32;// set defaults of optional arguments
    if(undefined == anit_alias) var anit_alias = true;
    if(undefined == contiguous) var contiguous = false;
     if(undefined == sampleAll) var sampleAll = false;
    var desc = new ActionDescriptor();
        var ref = new ActionReference();
        ref.putProperty( charIDToTypeID('Chnl'), charIDToTypeID('fsel') );
    desc.putReference( charIDToTypeID('null'), ref );
        var positionDesc = new ActionDescriptor();
        positionDesc.putUnitDouble( charIDToTypeID('Hrzn'), charIDToTypeID('#Rlt'), x );// in pixels
        positionDesc.putUnitDouble( charIDToTypeID('Vrtc'), charIDToTypeID('#Rlt'), y );
    desc.putObject( charIDToTypeID('T   '), charIDToTypeID('Pnt '), positionDesc );
    desc.putInteger( charIDToTypeID('Tlrn'), tolerance);
    desc.putBoolean( charIDToTypeID('Mrgd'), sampleAll );
    if(!contiguous) desc.putBoolean( charIDToTypeID( 'Cntg' ), false );
    desc.putBoolean( charIDToTypeID('AntA'), anit_alias );
    executeAction( charIDToTypeID('setd'), desc, DialogModes.NO );
};
magicWand(100,100,10,true,true);

[JJMack]

The OP wanted   (tolerance 255, anti alias , contiguous)  as a constant  he is trying to select a centered object where there are many objects on a single layer all surrounded by a transparent area. Still nothing was stated about sample size. If the sample size it a single point or small. I feel the magic wand may not select their whole center object.

[Gast]

You are right Mr. JJMack  Your example may be not very often case that Red Blue and Green hue are completely saturated, and highly opposed.  I guess. We can apply one more step in action to ensure a full selection : Select / Grow    (tolerrance 255 ) without care sample size