Add gegl:newsprint.

source/2022-03-06.ts

@@ -1,4 +1,4 @@
-import {Generic, SimplexNoise} from './gegl/exports.js';
+import {Generic, Newsprint, SimplexNoise} from './gegl/exports.js';
 import Project from './project.js';
 
 const [width, height] = [1920, 1080];
@@ -7,21 +7,21 @@ const project: Project = {
   name: '2022-03-06',
   operations: [
     new SimplexNoise({scale: 4, seed: 2_071_140_406}),
-    new Generic('gegl:newsprint', {
+    new Newsprint({
       colorModel: 'rgb',
       pattern2: 'line',
-      period2: '200',
+      period2: 200,
-      angle2: '15',
+      angle2: 15,
       pattern3: 'line',
-      period3: '200',
+      period3: 200,
-      angle3: '45',
+      angle3: 45,
       pattern4: 'line',
-      period4: '200',
+      period4: 200,
-      angle4: '0',
+      angle4: 0,
     }),
     new Generic('gegl:mirrors'),
     new Generic('gegl:softglow'),
-    new Generic('gegl:newsprint'),
+    new Newsprint(),
     new Generic('gegl:stereographic-projection', {tilt: 123}),
     new Generic('gegl:focus-blur', {
       blurType: 'gaussian',
@@ -29,17 +29,17 @@ const project: Project = {
       radius: 0.9,
       midpoint: 0.6,
     }),
-    new Generic('gegl:newsprint', {
+    new Newsprint({
       colorModel: 'rgb',
       pattern2: 'diamond',
-      period2: '200',
+      period2: 200,
-      angle2: '0',
+      angle2: 0,
       pattern3: 'diamond',
-      period3: '200',
+      period3: 200,
-      angle3: '35',
+      angle3: 35,
       pattern4: 'diamond',
-      period4: '200',
+      period4: 200,
-      angle4: '55',
+      angle4: 55,
     }),
     new Generic('gegl:focus-blur', {
       blurType: 'gaussian',

source/gegl/exports.ts

@@ -1,4 +1,5 @@
 export * from './base.js';
 export * from './crop.js';
 export * from './generic.js';
+export * from './newsprint.js';
 export * from './simplex-noise.js';

source/gegl/newsprint.ts

@@ -0,0 +1,54 @@
+import {BaseOperation} from './base.js';
+
+type NewsprintPattern = 'line' | 'circle' | 'diamond' | 'pssquare' | 'cross';
+
+export interface NewsprintParameters {
+  aaSamples: number;
+  angle: number;
+  angle2: number;
+  angle3: number;
+  angle4: number;
+  angleboost: number;
+  blackPullout: number;
+  blocksize: number;
+  colorModel: 'black-on-white' | 'cmyk' | 'rgb' | 'white-on-black';
+  pattern: NewsprintPattern;
+  pattern2: NewsprintPattern;
+  pattern3: NewsprintPattern;
+  pattern4: NewsprintPattern;
+  period: number;
+  period2: number;
+  period3: number;
+  period4: number;
+  turbulence: number;
+}
+
+export class Newsprint extends BaseOperation<NewsprintParameters> {
+  public static default: NewsprintParameters = {
+    aaSamples: 16,
+    angle: 75,
+    angle2: 15,
+    angle3: 45,
+    angle4: 0,
+    angleboost: 0,
+    blackPullout: 1,
+    blocksize: -1,
+    colorModel: 'black-on-white',
+    pattern: 'line',
+    pattern2: 'line',
+    pattern3: 'line',
+    pattern4: 'line',
+    period: 12,
+    period2: 12,
+    period3: 12,
+    period4: 12,
+    turbulence: 0,
+  };
+
+  public appendCrop = false;
+  public name = 'gegl:newsprint';
+
+  constructor(parameters?: Partial<NewsprintParameters>) {
+    super({...Newsprint.default, ...parameters});
+  }
+}