From 2ba7f8b78d5652dc6854d69ae3708ef83d3112a3 Mon Sep 17 00:00:00 2001
From: xStarman <edsonadeo@gmail.com>
Date: Mon, 27 Aug 2018 20:41:35 -0300
Subject: [PATCH 1/3] Update args.js

Adding support for the imagemagick distort command
---
 lib/args.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/lib/args.js b/lib/args.js
index 35089f77..78fb15cd 100644
--- a/lib/args.js
+++ b/lib/args.js
@@ -1103,6 +1103,25 @@ module.exports = function (proto) {
   proto.background = function background (color) {
     return this.in("-background", color);
   }
+    
+  //http://www.imagemagick.org/Usage/distorts/
+  proto.distort = function distort(pers, method = "BilinearForward"){
+    if(!this._options.imageMagick){
+      console.warn('Graphics Magick appears not to support the -distort option. Please use {imageMagick: true}\nDistort command was ignored!');
+      return this;
+    }
+    var perspectiveFrom = "";
+    pers.forEach(function(coordinate){
+      perspectiveFrom  += coordinate[0].x.toString();
+      perspectiveFrom  += ","
+      perspectiveFrom  += coordinate[0].y.toString() +" ";
+      perspectiveFrom  += coordinate[1].x.toString();
+      perspectiveFrom  += ","
+      perspectiveFrom  += coordinate[1].y.toString() +" ";
+    });
+        
+    return this.out("-distort",method, perspectiveFrom.trim() );
+  }
 };
 
 /**

From d24feb15bf2514f38297551035b6ad1b2045ade9 Mon Sep 17 00:00:00 2001
From: xStarman <edsonadeo@gmail.com>
Date: Mon, 27 Aug 2018 20:50:06 -0300
Subject: [PATCH 2/3] Update README.md

Adding new option "-distort" to docs
---
 README.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/README.md b/README.md
index 18c3c796..25253ebb 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,22 @@ gm(200, 400, "#ddff99f3")
 .write("/path/to/brandNewImg.jpg", function (err) {
   // ...
 });
+
+// distorting an image
+// array of arrays with from -> to objects
+// fx,fy -> tx,ty
+
+// It will only works with imageMagick subclass
+gm("image.jpg")
+.distort([
+    [{x:99,y:71}, {x:0,y:0}],
+    [{x:299,y:71}, {x:479,y:0}],
+    [{x:100,y:270}, {x:0,y:477}],
+    [{x:299,y:270}, {x:479,y:476}],
+])
+.write("/path/to/brandNewImg.jpg", function (err) {
+  // ...
+});
 ```
 
 ## Streams

From 056c15a1da81cba3fece454c0e4a9547a28e81cd Mon Sep 17 00:00:00 2001
From: Edson Junior <edsonadeo@gmail.com>
Date: Tue, 22 Jan 2019 22:15:50 -0200
Subject: [PATCH 3/3] Update args.js

Fix build incompatibility
---
 lib/args.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/args.js b/lib/args.js
index 78fb15cd..a1644fdc 100644
--- a/lib/args.js
+++ b/lib/args.js
@@ -1105,7 +1105,10 @@ module.exports = function (proto) {
   }
     
   //http://www.imagemagick.org/Usage/distorts/
-  proto.distort = function distort(pers, method = "BilinearForward"){
+  proto.distort = function distort(pers, method){
+    if(!method){
+       method = "BilinearForward";
+    }
     if(!this._options.imageMagick){
       console.warn('Graphics Magick appears not to support the -distort option. Please use {imageMagick: true}\nDistort command was ignored!');
       return this;