Hello everyone,
I have a trapezoid and i want to turn it to rectangle by using script.
it is basically something like this:
BEFORE
AFTER
i need to find the width of the small side of the trapezoid, in our case it's 2043px:
and after the transform the other side will be 2043 as well:
any ideas?
1 Correct answer
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r-bin interesting... it works for trapezoid but it failed with different shape.
What is the source of this script? Is it yours? Is there reason for obfuscation?
I have undeform script but for now, it works only with smart objects and affine transformations. Not trapezoids, perspective, etc.
I hope Tom Ruark could advise when he returns from vacation.
In continuation of the conversation. )
I'm here interested in parsing a PSD file.
While things are moving slowly. But I discovered an amazing thing.
This script returns the smart object to its original 100% state from any distortion.
The script is extremely simple. Does not specifically use file parsing. It is assumed that there is only one smart object in the file, the transformation can be any, but does not contain warp, the file is saved at least once on the disk.
If you are interested in this method, you can develop it.
var file = activeDocument.fullName;
activeDocument.save();
file.open("e");
file.encoding = "BINARY";
var len = file.length;
if (len > 100000) len = 100000;
var buff = file.read(len);
var n = buff.indexOf("8BIMSoLd");
if (n > 0)
{
var off = n+20;
var d = new ActionDescriptor();
d.fromStream(buff.substr(off))
var w = d.getObjectValue(stringIDToTypeID("size")).getDouble(stringIDToTypeID("width"));
var h = d.getObjectValue(stringIDToTypeID("size")).getDouble(stringIDToTypeID("height"));
var list = new ActionList()
list.putDouble(0);
list.putDouble(0);
list.putDouble(w);
list.putDouble(0);
list.putDouble(w);
list.putDouble(h);
list.putDouble(0);
list.putDouble(h);
d.putList(stringIDToTypeID("transform"), list);
d.putList(stringIDToTypeID("nonAffineTransform"), list);
file.seek(off, 0);
file.write(d.toStream());
file.close();
app.activeDocument.suspendHistory("TMP", "");
executeAction(stringIDToTypeID("revert"), undefined, DialogModes.NO);
runMenuItem(stringIDToTypeID("freeTransform"));
}
else
{
alert("No Smart Object found")
file.close();
}
upd.
works in CS6 
OK. Try it. Create a path from four points. For a script, it's important that pathpoints are created in such a sequence.
It is also important that at the time the script was run, the path was active (highlighted).
At large angles, there may be bugs. I do not understand who, at me or at a photoshop?
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I used r-bin's Straightens any quadrangle to rectangle script and i straightened a rectangle to the canvas (works perfect):
BEFORE
AFTER
I want to straighten a trapezoid in a way that it will fit up side of the layer to up side of the canvas, and down side of the layer to down side of the canvas automatically, just like that:
BEFORE
AFTER
this is where i got so far (after using r-bin's script):
if I use Free Transform > Perspective I can manually change it to:
BUT there is a difference in the location of X1 and Y1, X2 and Y2.
i made some calculations and i think my logic is right and it's just a matter of execution by script.
So let's say this is how my original trapezoid looked like:
X1 = 650
X2 = 2650
X2-X1 = 2000
Canvas Width = 4000
and here is how it should be:
X1 = 1000
X2 = 3000
X2-X1 = 2000
Canvas Width = 4000
This is how to get there:
Y1 should be = (4000-2650+650) /2 = 1000
in other words (Canvas Width - X2 + X1) * 0.5
Y2 should be = 4000-1000 = 3000
in other words Canvas Width -Y1
After I know where my Y1 and Y2 needs to be, there must be an automatic way to:
1. Distort top left corner to Y1
2. Distort top right corner to Y2.
Any kind of help will be appreciated 
any chance to bother you to combine the two?
this is the auto symmetry one:
- app.activeDocument.suspendHistory("Skew","skew_straighten_layer()");
- function skew_straighten_layer()
- {
- try {
- app.preferences.rulerUnits = Units.PIXELS;
- var doc = app.activeDocument;
- var layer = app.activeDocument.activeLayer;
- selection_from_layer();
- var dh = Number(layer.bounds[3].value - layer.bounds[1].value)*0.01;
- select_single_line(Number(layer.bounds[1].value) + dh, true, stringIDToTypeID("intersectWith"));
- var x0 = Number(doc.selection.bounds[2].value + doc.selection.bounds[0].value)/2;
- var y0 = Number(doc.selection.bounds[3].value);
- selection_from_layer();
- select_single_line(Number(layer.bounds[3].value) - dh, true, stringIDToTypeID("intersectWith"));
- var x1 = Number(doc.selection.bounds[2].value + doc.selection.bounds[0].value)/2;
- var y1 = Number(doc.selection.bounds[3].value);
- doc.selection.deselect();
- var w = x1 - x0;
- var h = y1 - y0;
- var angle;
- if (h != 0)
- {
- angle = Math.atan(w/h) * 180.0 / Math.PI;
- skew(layer, -angle,0, x1, y1);
- }
- }
- catch (e) { alert(e) }
- }
- function select_single_line(x, h, mode)
- {
- try
- {
- if (mode == undefined) mode = stringIDToTypeID("set");
- var r = new ActionReference();
- r.putProperty(stringIDToTypeID("channel"), stringIDToTypeID("selection"));
- var d = new ActionDescriptor();
- d.putReference(stringIDToTypeID("target"), r);
- var d1 = new ActionDescriptor();
- d1.putUnitDouble(stringIDToTypeID(h?"top":"left"), stringIDToTypeID("pixelsUnit"), x);
- d.putObject(stringIDToTypeID("to"), stringIDToTypeID(h?"singleRow":"singleColumn"), d1);
- executeAction(mode, d, DialogModes.NO);
- }
- catch (e) { throw(e); }
- }
- function selection_from_layer()
- {
- try
- {
- var r = new ActionReference();
- r.putProperty(stringIDToTypeID("channel"), stringIDToTypeID("selection"));
- var d = new ActionDescriptor();
- d.putReference(stringIDToTypeID("target"), r);
- var r = new ActionReference();
- r.putEnumerated(stringIDToTypeID("channel"), stringIDToTypeID("channel"), stringIDToTypeID("transparencyEnum"));
- d.putReference(stringIDToTypeID("to"), r);
- executeAction(stringIDToTypeID("set"), d, DialogModes.NO);
- }
- catch (e) { throw(e); }
- }
- function skew(layer, h,v, x, y)
- {
- try
- {
- app.activeDocument.activeLayer = layer;
- var d1 = new ActionDescriptor();
- var d2 = new ActionDescriptor();
- var d3 = new ActionDescriptor();
- var d4 = new ActionDescriptor();
- var r1 = new ActionReference();
- r1.putEnumerated( charIDToTypeID( "Lyr " ), charIDToTypeID( "Ordn" ), charIDToTypeID( "Trgt" ) );
- d1.putReference( charIDToTypeID( "null" ), r1 );
- d1.putEnumerated( charIDToTypeID( "FTcs" ), charIDToTypeID( "QCSt" ), charIDToTypeID( "Qcsi" ) );
- if (x != undefined && y != undefined)
- {
- d2.putUnitDouble( charIDToTypeID( "Hrzn" ), charIDToTypeID( "#Pxl" ), x );
- d2.putUnitDouble( charIDToTypeID( "Vrtc" ), charIDToTypeID( "#Pxl" ), y );
- d1.putObject( charIDToTypeID( "Pstn" ), charIDToTypeID( "Pnt " ), d2 );
- }
- d4.putUnitDouble( charIDToTypeID( "Hrzn" ), charIDToTypeID( "#Ang" ), h );
- d4.putUnitDouble( charIDToTypeID( "Vrtc" ), charIDToTypeID( "#Ang" ), v );
- d1.putObject( charIDToTypeID( "Skew" ), charIDToTypeID( "Pnt " ), d4 );
- executeAction( charIDToTypeID( "Trnf" ), d1, DialogModes.NO );
- }
- catch (e) { throw(e); }
- }
and combine it with the jsxbin of this thread.
thanks anyway!
created a WorkPath, i'm getting this:
I wonder if it's possible to make it work without having to create a work path because the script straightens any quadrangle to rectangle did not require a work path, and the script Auto Symmetry Skew did not require a work path. a combination of the two can be pretty awesome
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