I'm trying to draw multiple circle arcs filled with different colors          //-------------- draw         ctx.beginPath();         ctx.fillStyle = "black";         ctx.arc(30, 30, 20, 0, Math.PI*2, true);         ctx.fill();         ctx...
i need to draw lines between 2 element on html page  the results should be like this: http://img2.timg.co.il/forums/1_173873919.JPG  i wondered what the best way do this   using canvas and html5 using background image. make by ajax dynamic the image...
I am creating a desktop application using NodeWebKit, sails.js and AngularJS where users can create documents and add flowcharts, diagrams, etc. similar to draw.io and Gliffy.com   which allows user to create flowchart by dragging and dropping from s...
I have to points (x1, x2, y1, y2). How can I draw an image (it's like a rectangle of width 10 and height 100) on a canvas with starting point x1, y1 and rotation degree determined by slope of the line between that two points?  It's like I wan...
I've tried to use the drawImage function of the canvas.  In the documentation (http://msdn.microsoft.com/en-us/library/ie/ff975414(v=vs.85).aspx) I thought the last two parameters are the destination point, but I guess it's not because it'...
I'm writing a simple drawing application in JS that works with coordinates. I need to find the midpoint of two points recursively in order to draw a line(The midpoint between point A and B, and then the two midpoints between the three resulting p...
is it possible to do a drawing line and image in React native (like canvas in Android) and make a view like below?   Thanks in advance, any response is appreciated...
My objective is this : creating a rolling text that does not cross borders of a rectangle inside the canvas. Some text should appear partially. Yet i have not found a way to obtain this.   The only thing i can think is of some setting of the canvas l...
I am new to HTML canvases, but I have verified all my code and functions, or thought I had, and yet there is still no output on my website. It's supposed to be like the khanacademy draw function, where the user can select html...
Is it possible to capsulate a set of drawing into a transformable object in HTML canvas? For example, I have a draw function like this:      let drawObject = (x, y) => {         ctx.fillStyle = 'red';         ctx.beginPath();         ctx.a...

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