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jscad_quick_reference [2018/01/28 01:09]
openjscadorgadmin [General Usage]
jscad_quick_reference [2018/03/24 13:06] (current)
z3dev
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-====== ​JSCAD - Quick Reference ====== +====== Quick Reference ======
-The following sections provide quick reference to OpenJSCAD, CSG libraries, and the JavaScript language.+
  
-**[[https://​github.com/​Spiritdude/​OpenJSCAD.org/​wiki/​User-Guide|User Guide]]** +The following sections provide quick reference to the JSCAD application programming interface (API), the heart of making designs.
- +
-**[[http://​joostn.github.io/​OpenJsCad/​|CSG and CAG User Guide]]**+
  
 //Note: **Default values** and **notes** are highlighted in **bold fonts**.// //Note: **Default values** and **notes** are highlighted in **bold fonts**.//
  
 {{page>​quick_reference_intro}} {{page>​quick_reference_intro}}
- 
-===== General Usage ===== 
-^  OpenJSCAD Functions ​ ^  JavaScript Statements ​ ^ 
-| function main(parameters) { ...; return var; } **/* required */** | var name = my_box( {attribute: 1, ...} ); | 
-| function getParameterDefinitions() {return [ definition... ]; } **/* optional */**  | function my_box( param ) { ...; return shape; } **/* create a function */**  | 
-| OpenJsCad.log("​message"​); ​ **/* display message and time stamp */** | console.log("​message"​);​ /* display message */  | 
-| include... ​ | for (index = 0; index < array.length;​ index--;) { ... };  | 
- 
-//Note: Messages are displayed in the Javascript console in browsers.// 
  
 {{page>​quick_reference_shapes}} {{page>​quick_reference_shapes}}
  
-===== Shape Transformations ===== +{{page>​quick_reference_transforms}}
-^  2D Transformations ​ ^  3D Transformations ​ ^ +
-| 2Dshape = 2Dshape.translate([-2,​ -2]); | 3Dshape = 3Dshape.translate([1,​2,​3]);​ | +
-| 2Dshape = 2Dshape.rotateZ(20);​ | 3Dshape = 3Dshape.rotateX(90);​ | +
-| ::: | 3Dshape = 3Dshape.rotateY(-180); ​ | +
-| ::: | 3Dshape = 3Dshape.rotateZ(45); ​ | +
-| 2Dshape = 2Dshape.rotate(center,​ axis, degrees); ​ | 2Dshape = 2Dshape.rotate(center,​ axis, degrees); ​ | +
-| 2Dshape = 2Dshape.rotateEulerAngles(alpha,​ beta, gamma, position); ​ | 2Dshape = 2Dshape.rotateEulerAngles(alpha,​ beta, gamma, position); ​ | +
-| 2Dshape = 2Dshape.scale([0.7,​ 0.9]); ​ | 3Dshape = 3Dshape.scale([1,​2,​3]); ​ | +
-| 2Dshape = 2Dshape.center(true);​ **/* center X & Y axis */**  | 3Dshape = 3Dshape.center(true);​ **/* center X & Y & Z axis */**  | +
-| 2Dshape = 2Dshape.center([true,​false]); ​ | 3Dshape = 3Dshape.center([true,​false,​true]); ​ | +
-| 2Dshape = 2Dshape.mirroredX(); ​ | 3Dshape = 3Dshape.mirroredX(); ​ | +
-| 2Dshape = 2Dshape.mirroredY(); ​ | 3Dshape = 3Dshape.mirroredY(); ​ | +
-| ::: | 3Dshape = 3Dshape.mirroredZ(); ​ | +
-| 2Dshape = 2Dshape.mirrored(plane);​ | 3Dshape = 3Dshape.mirrored(plane); ​ | +
-| 2Dshape = 2Dshape.transform(matrix); ​ | 3Dshape = 3Dshape.transform(matrix); ​ | +
-| **/* not supported yet */**  | 3Dshape = 3Dshape.setColor(r,​g,​b); ​ **/* a = 1.0 */**  | +
-| ::: | 3Dshape = 3Dshape.setColor(r,​g,​b,​a); ​ | +
-| ::: | 3Dshape = 3Dshape.setColor([r,​g,​b]); ​ **/* a = 1.0 */**  | +
-| ::: | 3Dshape = 3Dshape.setColor([r,​g,​b,​a]); ​ | +
-| 2Dshape = 2Dshape.expand(0.2,​ 8); **/* radius, resolution */**  | 3Dshape = 3Dshape.expand(0.2,​ 8); **/* radius, resolution */**  | +
-| 2Dshape = 2Dshape.contract(0.2,​ 8); **/* radius, resolution */**  | 3Dshape = 3Dshape.contract(0.2,​ 8); **/* radius, resolution */**  |+
  
-//Note: Shape transformations can be chained together. Example://+{{page>​quick_reference_operations}}
  
-**var 3Dshape = CSG.cube().rotate(45).translate([20,​0,​10]).setColor(1,​0.5,​0.3);​** +{{page>​quick_reference_conversion}}
-===== Shape Operations ===== +
-^  2D Operations ​ ^  3D Operations ​ ^ +
-| 2Dshape = 2DshapeA.union(2DshapeB);​ | 3Dshape = 3DshapeA.union(3DshapeB); ​ | +
-| 2Dshape = 2DshapeA.subtract(2DshapeB) | 3Dshape = 3DshapeA.subtract(3DshapeB); ​ | +
-| 2Dshape = 2DshapeA.intersect(2DshapeB);​ | 3Dshape = 3DshapeA.intersect(3DshapeB); ​ | +
-| ::: | 3Dshape = 3DshapeA.inverse(3DshapeB);​ **/* inverse solid and empty space */**  |+
  
-===== Dimension Conversions ===== 
-^  2D to Path Conversions ​ ^ 
-| var Path2DArray = 2Dshape.getOutlinePaths(); ​ | 
- 
-^  2D to 3D Conversions ​ ^ 
-| 3DShape = 2Dshape.extrude();​ **/* offset: [0,0,1], twistangle: 0, twiststeps: 12 */**  | 
-| 3DShape = 2Dshape.extrude({offset:​ [0,0,50], twistangle: 360, twiststeps: 100}); ​ | 
-| 3DShape = 2Dshape.rotateExtrude({offset:​ [0,0,50], twistangle: 360, twiststeps: 100}); **/* angle: 360, resolution: 12 */**  | 
-| 3Dshape = 2Dpath.rectangularExtrude(3,​ 4, 16, true); ​  **/* w, h, resolution, round ends */**  | 
- 
-^  3D to 2D Conversions ​ ^ 
-| tbw | 
 ===== OpenSCAD-like Functions ===== ===== OpenSCAD-like Functions =====
 These functions ease the transition from the [[http://​www.openscad.org/​|OpenSCAD]] (proprietary script) to OpenJSCAD (JavaScript and objects). These functions ease the transition from the [[http://​www.openscad.org/​|OpenSCAD]] (proprietary script) to OpenJSCAD (JavaScript and objects).
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 | var path = vector_char(10,​-10,​ '​A'​);​ **/* X axis, Y axis, character */**  |  | | var path = vector_char(10,​-10,​ '​A'​);​ **/* X axis, Y axis, character */**  |  |
 | var array_of_paths = vector_text(10,​-10,​ '​Letters'​); ​ **/* X axis, Y axis, string of characters */**  | ::: | | var array_of_paths = vector_text(10,​-10,​ '​Letters'​); ​ **/* X axis, Y axis, string of characters */**  | ::: |
-===== Interactive Parameters ===== 
-A design can have interactive parameters by declaring a special function; getParameterDefinitions(). 
- 
-==== Usage ==== 
-This function must return an array of parameter definitions,​ as show below. 
- 
-<​code>​ 
-function getParameterDefinitions() { 
-    return [ 
-        { name: '​length',​ type: '​int',​ initial: 150, caption: '​Length?'​ },  
-        { name: '​width',​ type: '​int',​ initial: 100, caption: '​Width?'​ }, 
-    ]; 
-} 
-</​code>​ 
- 
-The parameters are evaluated and values are passed into the main function. Be sure to declare the main function properly. 
-<​code>​ 
-function main(params) { 
-  var l = params.length;​ 
-  var w = params.width;​ 
-... 
-} 
-</​code>​ 
-==== Parameter Types ==== 
-The parameters are defined as input fields on a single HTML5 form, i.e. the list of parameters. For more information on HTML5 input fields, see some examples at [[http://​www.w3schools.com/​html/​html_form_input_types.asp|W3 Schools]]. 
- 
-**Note: Browsers are NOT the same and will treat unsupported parameter types as TEXT.** 
- 
-^  Type  ^  Example ​ ^  Returned Value  ^ 
-| checkbox ​ | {name: '​bigorsmall',​ type: '​checkbox',​ checked: true, caption: '​Big?'​} ​ | if checked true, else false  | 
-| checkbox ​ | {name: '​bigorsmall',​ type: '​checkbox',​ checked: true, initial: 20, caption: '​Big?'​} ​ | if checked 20, else false   | 
-| color  | { name: '​color',​ type: '​color',​ initial: '#​FFB431',​ caption: '​Color?'​ }  | "#​rrggbb",​ use html2rgb() to convert ​ | 
-| date  | {name: '​birthday', ​ type: '​date',​ caption: '​Birthday?'​} ​ | "​YYYY-MM-DD" ​ | 
-| email  | {name: '​address',​ type: '​email',​ caption: 'Email Address?'​} ​ | string value  | 
-| float  | {name: '​angle',​ type: '​number',​ initial: 2.5, step: 0.5, caption: '​Angle?'​} ​ | float value  | 
-| int  | {name: '​age',​ type: '​int',​ initial: 20, caption: '​Age?'​} ​ | integer value  | 
-| number ​ | {name: '​angle',​ type: '​number',​ initial: 2.5, step: 0.5, caption: '​Angle?'​} ​ | float value  | 
-| password ​ | {name: '​password',​ type: '​password',​ caption: '​Secret?'​} ​ | string value  | 
-| slider ​ | {name: '​count',​ type: '​slider',​ min: 2, max: 10, caption: 'How many?'​} ​ | float value  | 
-| text  | {name: '​name',​ type: '​text',​ caption: '​Name?'​} ​ | string value  | 
-| url  | {name: '​webpage',​ type: '​url',​ caption: 'Web page URL?'​} ​ | string value  | 
-| group  | { name: '​balloon',​ type: '​group',​ caption: '​Balloons'​ }  | none, only displayed ​ | 
  
-//Note: The parameters accept additional restrictions and assistance. These include '​initial',​ '​max',​ '​maxLength',​ '​min',​ '​pattern',​ '​placeholder',​ '​size',​ and '​step'​.//​+{{page>​quick_reference_parameters}}