How to use multiple paperscopes on a single canvas in paperjs? -

-

i'm trying create multiple canvases each it's own scope. i've hit few problems didn't encounter when working single canvas , scope.

i have array of scopes , try switching between them using scopearray[n].activate(); seems not initiate paperscope.project , can't assign layers or draw.

any in solving appreciated.

i set canvases based on size of array , store them in object:

paper.install(window); ...   var paperpad = {}; var layers = {     'back': 0,     'draw': 1,     'control': 2,     'front': 3 }   function setupcanvas(){  // init canvas , calculate width/height/centre for(var c in canvaslist){    var el = document.createelement("canvas");   var id = '' + canvaslist[c][0] + '' + canvaslist[c][1] + '' + canvaslist[c][2];    el.width = canvaswidth;   el.height = canvasheight;   el.setattribute('id', id);   el.setattribute('class', 'padcanvas');   document.body.appendchild(el);    paperpad[id] = new paper.paperscope();   paperpad[id].setup(el);  }

and attempt automatically setup layers accessing project global error saying project null.

function setuplayers() {

for(var p in paperpad){    paperpad[p].activate();   project.layers[0].setname('back');    for(var l in layers) {     if(!project.layers[layers[l]]){       var layer = new layer();       layer.setname(l);     }   } }

}

same happens in draw functions

function draw() {

for(var p in paperpad) {    paperpad[p].activate();    // draw functions }

}

i'm sure there's i'm missing how scoping works.

paperjs not update global variable project though you've installed paper globals via paper.install(window) in pure javascript mode. if set project = paperpad[id]; should work. end using paper.project , manually updating because started way , seems natural @ point.

but paper doesn't manage keeping project up-to-date in javascript mode.


Comments

Post a Comment

Popular posts from this blog

ios - UITEXTFIELD InputView Uipicker not working in swift -

-
hello trying pop uipickerview view programmatically when user clicks on textfield. have tried doesn't doing anything. isn't working. nothing happening when click textfield class userprofiletableviewcontroller: uitableviewcontroller,uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource { var itempicker: uipickerview! = uipickerview() @iboutlet weak var gendertxtfield: uitextfield! var gender = ["male","female"] override func viewdidload() { super.viewdidload() gendertxtfield.delegate = self itempicker!.delegate = self itempicker!.datasource = self itempicker!.backgroundcolor = uicolor.blackcolor() self.gendertxtfield.inputview = itempicker } func numberofcomponentsinpickerview(pickerview: uipickerview) -> int{ return 1 } // returns # of rows in each component.. func pickerview(pickerview: uipickerview, numberofrowsincomponent component:...
Read more

Hatching array of circles in AutoCAD using c# -

-
i beginner in autocad plugins .i have created array of circle using following code. now, have hatch circles in array .how that??how hatch circles @ once? moreover, how can return hatch method , use hatch objects.sorry language.thanks in advance. [assembly: commandclass(typeof(beamsection.class1))] namespace beamsection { public class class1 { //class1 obj = new class1(); [commandmethod("beamatsupport")] public void addlightweightpolyline() { // current document , database document acdoc = application.documentmanager.mdiactivedocument; database accurdb = acdoc.database; promptpointresult ppr = acdoc.editor.getpoint("\nselect starting point "); var ucs = acdoc.editor.currentusercoordinatesystem; point3d startingpt = ppr.value.transformby(ucs); list<double> radius = new list<double>(); radius.add(0.5); ...
Read more