Skip to main content
Geppetto Luis
Geppetto Luis
Legend
April 4, 2020
Answered

Random circles

  • April 4, 2020
  • 4 replies
  • 5646 views

I would like to create white circles in my document
the size of the circle and the position must be random

an example of what I'm looking for I used a black background
to see better what I'm looking for.

 

Correct answer c.pfaffenbichler
The below code produces something like this, to amend the number, colors and radii of the circles amend the line
createCircle(Math.random()*theWidth, Math.random()*theHeight, 10+Math.random()*90, Math.random()*255, Math.random()*255, Math.random()*255);
if (app.documents.length > 0) {
var myDoc = app.activeDocument;
var theWidth = myDoc.width;
var theHeight = myDoc.height;
for (var m = 0; m < 20; m++){
createCircle(Math.random()*theWidth, Math.random()*theHeight, 10+Math.random()*90, Math.random()*255, Math.random()*255, Math.random()*255);
};
};
//////////////////
function createCircle (theCenterX, theCenterY, theRadius, theR, theG, theB) {
var idpixelsUnit = stringIDToTypeID( "pixelsUnit" );
var idmake = stringIDToTypeID( "make" );
var desc15 = new ActionDescriptor();
var idnull = stringIDToTypeID( "null" );
var ref4 = new ActionReference();
var idcontentLayer = stringIDToTypeID( "contentLayer" );
ref4.putClass( idcontentLayer );
desc15.putReference( idnull, ref4 );
var idusing = stringIDToTypeID( "using" );
var desc16 = new ActionDescriptor();
var idtype = stringIDToTypeID( "type" );
var desc17 = new ActionDescriptor();
var idcolor = stringIDToTypeID( "color" );
var desc18 = new ActionDescriptor();
var idred = stringIDToTypeID( "red" );
desc18.putDouble( idred, theR );
var idgrain = stringIDToTypeID( "grain" );
desc18.putDouble( idgrain, theG );
var idblue = stringIDToTypeID( "blue" );
desc18.putDouble( idblue, theB );
var idRGBColor = stringIDToTypeID( "RGBColor" );
desc17.putObject( idcolor, idRGBColor, desc18 );
var idsolidColorLayer = stringIDToTypeID( "solidColorLayer" );
desc16.putObject( idtype, idsolidColorLayer, desc17 );
var idshape = stringIDToTypeID( "shape" );
var desc19 = new ActionDescriptor();
var idunitValueQuadVersion = stringIDToTypeID( "unitValueQuadVersion" );
desc19.putInteger( idunitValueQuadVersion, 1 );
var idtop = stringIDToTypeID( "top" );
desc19.putUnitDouble( idtop, idpixelsUnit, theCenterY - theRadius );
var idleft = stringIDToTypeID( "left" );
desc19.putUnitDouble( idleft, idpixelsUnit, theCenterX - theRadius );
var idbottom = stringIDToTypeID( "bottom" );
desc19.putUnitDouble( idbottom, idpixelsUnit, theCenterY + theRadius );
var idright = stringIDToTypeID( "right" );
desc19.putUnitDouble( idright, idpixelsUnit, theCenterX + theRadius );
var idellipse = stringIDToTypeID( "ellipse" );
desc16.putObject( idshape, idellipse, desc19 );
var idcontentLayer = stringIDToTypeID( "contentLayer" );
desc15.putObject( idusing, idcontentLayer, desc16 );
var idlayerID = stringIDToTypeID( "layerID" );
desc15.putInteger( idlayerID, 3 );
executeAction( idmake, desc15, DialogModes.NO );
};

4 replies

Chuck Uebele
Community Expert
Chuck UebeleCommunity Expert
Community Expert
April 5, 2020

Yea, I do a lot of images using scripts to place random shapes. Mine have gradients that are applied by sampling a reference layer.

    JJMack
    Community Expert
    JJMackCommunity Expert
    Community Expert
    April 5, 2020

    I see a Ghost, a Man, a Dog and a Fish.  You did create a colorful Rorschach test Chuck.

    JJMack
      Kukurykus
      Kukurykus
      Legend
      April 5, 2020

      Not fish, but turtle.

        jane-e
        Community Expert
        jane-eCommunity Expert
        Community Expert
        April 4, 2020

        Hi

         

        I love C_P's scripting solution!

         

        If you have Illustrator, though, it's super simple.

        1. Draw your shape, either the circle or the polygon or anything else.
          Drag it into symbols to make a symbol.
          Delete the shape from the artboard
        2. Use the Symbol Sprayer tool to spray a symbol set.
          Use the Symbol Sizer tool to make the shapes larger (add Option to do the opposite)
          Use the Symbol Shifter tool to scoot them around.
        3. If you start with a circle and then want the polygon, create a new symbol and use the replace symbol command to update wherever the symbol is in use.

         

        If you think you will have edits and customization, you might want to use Illustrator for this project.

         

        ~ Jane

          c.pfaffenbichler
          Community Expert
          c.pfaffenbichlerCommunity Expert
          Community Expert
          April 5, 2020

          Come to think of it I tinkered with a Script a couple years ago to distribute Smart Object instances based on a Channel. 

          Using Smart Objects allows for summary editing later on. 

            c.pfaffenbichler
            Community Expert
            c.pfaffenbichlerCommunity Expert
            Community Expert
            April 4, 2020

            This is an example of a Brish randomized Shape Dynamics and Scattering applied to a straight Path. 

              Geppetto Luis
              Geppetto LuisAuthor
              Legend
              April 4, 2020

              I have tried this method m is not good for me

              c.pfaffenbichler
              Community Expert
              c.pfaffenbichlerCommunity Expert
              Community Expert
              April 4, 2020

              Could you elaborate without having to be asked to each time? 

                c.pfaffenbichler
                Community Expert
                c.pfaffenbichlerCommunity Expert
                Community Expert
                April 4, 2020

                So what is the question or problem? 

                 

                You could use a randomized Brush with Scattering or a Script. 

                  Geppetto Luis
                  Geppetto LuisAuthor
                  Legend
                  April 4, 2020

                  if you can a ui dialog
                  if it is too much a script is also fine.

                  c.pfaffenbichler
                  Community Expert
                  c.pfaffenbichlerCommunity Expert
                  Community Expert
                  April 4, 2020

                  What do you mean? 

                  Please elaborate. 

                  And if you want to pursue a Scripting-approach: Do you have any JavaScript-experience? 

                    Terms & ConditionsAccessibility statement
                    Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices