Last modified: 2013-3-2

Class MaxCanvas

Canvas-Api for Max (can be found in MAX_PATH/Cycling '74/jsextensions/)

Copyright 2010 - Cycling '74
Silvio C. Haedrich ein.selbst@gmail.com

Defined in: CanvasExtension.js

Class Summary
Constructor Attributes	Constructor Name and Description
	MaxCanvas(Jsui) Creates an MGraphics context.

Field Summary
Field Attributes	Field Name and Description
CanvasRenderingContext2D *	context rendering context

Method Summary
Method Attributes	Method Name and Description
CanvasRenderingContext2D	getContext(type) Returns the rendering context.

Class Detail

MaxCanvas

(Jsui)

Creates an MGraphics context. Implements a jsui.onresize event handler

function MaxCanvas(Jsui) {
	if (!Jsui || !(Jsui instanceof js)) {
		post("missing or wrong argument for MaxCanvas, call \"new MaxCanvas(this);\"\n");
		return;
	}
	Jsui.mgraphics.init();
	Jsui.mgraphics.relative_coords = 0;
	Jsui.mgraphics.autofill = 0;

	this.context = new CanvasRenderingContext2D(jsui);
	var that = this;

	Jsui.onresize = function(w, h){
		that.context.aspect = w/h;
		that.context.width  = w;
		that.context.height = h;
		if (Jsui.onresizeCanvas)
			Jsui.onresizeCanvas(w,h);
	}
	return this;
}

Defined in: CanvasExtension.js

Example:

// see file canvas-examples.js in Max's examples folder
var myCanvas = new MaxCanvas(this);
var ctx = myCanvas.getContext('max-2d');

Parameters:
{jsui} Jsui

Field Detail

{CanvasRenderingContext2D *}

context

rendering context

Example:

var ctx = new MaxCanvas(this).getContext("max-2d");

Method Detail

{CanvasRenderingContext2D}

getContext

(type)

Returns the rendering context.

MaxCanvas.prototype.getContext = function(type) {
	if (type == 'max-2d')
		return this.context;

	post("context-type not supported, use 'max-2d'");
}

Example:

var ctx = new MaxCanvas(this).getContext("max-2d");

Parameters:
{String} type: only "max-2d"

Classes

Max/MSP Jitter Javascript Reference

Class MaxCanvas

MaxCanvas

context

getContext