Tagged Questions

The canvas element is part of HTML5 and allows for dynamic, scriptable rendering of 2D shapes and bitmap images. It is a low level, procedural model that updates a bitmap and does not have a built-in scene graph.

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Save Canvas As Image to phone storage Phonegap

I have an application that uses Canvas to create custom images. I have been able to hack all of it except being able to download/save the image to the user's phone storage, I have tried using the ...
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Two Kinetic.Tween aren't executed at the EXACT same time | Get updated x-value during Tween

I am trying to keep a stage static and non-draggable on a draggable stage. So far, it works when the users drags the stage with the mouse by catching the dragmove -event(no visual problems there), ...
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2answers
100 views

html 5 canvas drawing error

I'm trying to build my first nearly-complex map based on vectors drawn in a html 5 canvas. It works well, except the scaling. I noticed the following: In Firefox everything works well (except the ...
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2answers
44 views

HTML 5 - how to zoom canvas background image

I am a beginner in HTML 5, I have written a code for canvas zoom but I dont want to zoom actual canvas but the background image of canvas like in the http://www.customink.com/lab following is the ...
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0answers
20 views

Google Map Custom Overlay

I developed custom SVG Overlay, but have problem in rendering. Cause I have to much points and rendering all points as SVG is too slow in browser. I know the best solution is creating custom Canvas ...
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0answers
23 views

kineticJS Uncaught TypeError: Type error

I am using kinetics to make a drag & drop application, everything was working fine until a few days when a strange error appears in console (Uncaught TypeError: Type error). Debugging my app I ...
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1answer
39 views

Save canvas as image PaperJS

I have created a canvas with image and few shapes over the image. Now i need to save the whole canvas as image when i click save button. how can i do it. can any one help me. I did as you said but ...
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1answer
41 views

HTML5 Canvas follow object

I'm making an HTML5 game and I'm new to this, My issue is that I'm making a 2D game and I have a background that is bigger than my canvas. I need that when my main object moves the camera moves with ...
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3answers
42 views

HTML5 Remove previous drawn object in canvas

I have a polygon object (say a car) drawn inside HTML5 canvas with help of methods moveTo & lineTo. I want to repeatedly draw that object at diff position in canvas.(simply simulating an object ...
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0answers
25 views

CamanJS - replace instance

If I have an image that I apply a filter to, e.g. Lomo filter, is there way to make that the current Caman instance? Meaning, if I then want to then play about with the brightness on the image that I ...
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1answer
41 views

Drawing line in Canvas having issue

I'm currently working on an iOS app which uses HTML 5 and JavaScript for drawing Graphs. I just did a sample App. My Code: <!DOCTYPE html> <html> <head> <script ...
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1answer
30 views

Animate (Oscillation) custom drawn shape on Canvas

Good day. I am looking for abit of advice. Before judging, please take note I am new to coding, with only a few weeks of experience. I am trying to make the cloud shape I have draw onto the canvas, ...
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How to add Line and circle paths to get an UML interface? [closed]

1: code and path for Line <svg width="640" height="480" xmlns="http://www.w3.org/2000/svg" class="st3"> <!-- Created with SVG-edit - http://svg-edit.googlecode.com/ --> <g ...
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1answer
51 views

Preload images in jquery/canvas “Uncaught TypeError: Type error”

I want to pre-load a directory of images into my canvas so that they are ready to be displayed when I need them. I found this question on stackoverflow and the accepted answer was extremely helpful. ...
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0answers
19 views

KineticJS, ON method doesn't work on specific coordinates

So I got a code working with KineticJS, to load 3 images, then draw a circle on the canvas, and finally place the 1 image near the circle (730,730) and add to it a on method. If I place the image near ...

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