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Showing posts with the label Canvas

Why Function Returns Wrong Color In Canvas?

My canvas color is 50 255 50 155. When I do a code: function getClickedAreaColor(x, y) { v… Read more Why Function Returns Wrong Color In Canvas?

Cleanest Drag And Drop Code In Javascript Canvas

I'm looking for the fastest and lightest way to drag and drop shapes and sprites on a JS Canvas… Read more Cleanest Drag And Drop Code In Javascript Canvas

Overlap Image2 On Image1

We are displaying image1 in site as below : Now we are giving an option to upload image2, and what… Read more Overlap Image2 On Image1

How Can I Colour Different Words In The Same Line With Html5 Canvas?

Consider this loop that runs through key value pairs in an object: Object.keys(categories).forEach(… Read more How Can I Colour Different Words In The Same Line With Html5 Canvas?

Merging Canvas And Background

I have a canvas that has a GIF background. I need for the user to upload the drawing and the BG, so… Read more Merging Canvas And Background

Set Pixels Of Canvas To Transparent Again

I want to draw an image, erase some parts and then paint again on top. Something along the lines of… Read more Set Pixels Of Canvas To Transparent Again

Cannot Load Image Using Webpack Dev Server In Nodejs

Hi I am using the following code to try to draw a background for my game, but I keep getting the fa… Read more Cannot Load Image Using Webpack Dev Server In Nodejs

Canvas Javascript Floodfill Algorithm Left White Pixels Without Color

I have been working on a drawing app like paint. I am in the part of the floodfill and I am using a… Read more Canvas Javascript Floodfill Algorithm Left White Pixels Without Color

Drawing In Javascript / Html5 Using Xor To Remove Old Sprite

I'm building the engine for a tiny game, and right now I have just got a red circle with two li… Read more Drawing In Javascript / Html5 Using Xor To Remove Old Sprite

Touch Events "touchstart" Returns Incorrect Position On Mobile Safari. Workarounds?

I am developing an HTML5 Canvas project and while adding multitouch support for mobile devices, I s… Read more Touch Events "touchstart" Returns Incorrect Position On Mobile Safari. Workarounds?

How To Convert A Html5 Canvas Image To A Json Object?

hi i have to covert a set of images to a json object.But, as a first step i was trying to do it for… Read more How To Convert A Html5 Canvas Image To A Json Object?

How To Clear Specific Line In Canvas : Html5

I am totally new to this Canvas Element. I am able to draw line in canvas, but not able to clear on… Read more How To Clear Specific Line In Canvas : Html5

Saving Dataurl(base64) To File On Phonegap (android)

I'm converting canvas to dataURL(base64) type and I wanted to save it to phone filesystem using… Read more Saving Dataurl(base64) To File On Phonegap (android)

Mouse Position In Canvas Without A Library?

I been searching around to find how to get the mouse position relative to canvas but without a JS l… Read more Mouse Position In Canvas Without A Library?

Javascript: How To Calculate Offsets For A Boundary Of A Moving Sprite When It's Speed Is Relative To Time?

I am current running into a bit of a math conundrum that has stumped me for days. I am building a J… Read more Javascript: How To Calculate Offsets For A Boundary Of A Moving Sprite When It's Speed Is Relative To Time?

Intersection Point In Line Graph In Chart.js?

Searched a lot about this but din't got any answer on this based on chart.js. I had already ask… Read more Intersection Point In Line Graph In Chart.js?

Canvas: X Value Changing In Console But Not In Canvas

I am pulling coordinates from an API and setting them to a class of Rectangle. When looping through… Read more Canvas: X Value Changing In Console But Not In Canvas

How To Call A Function Using A Dynamic Name In Js

I'm trying to call this a function following the same example that I've posted bellow. So t… Read more How To Call A Function Using A Dynamic Name In Js

Zooming A Group With Kineticjs

Here is the structure I have Layer: ParentGroup: -Kinetic Image -ChildGroup -… Read more Zooming A Group With Kineticjs

I Am Working On An Html 5 Canvas And Trying To Draw Circles On It, But As I Trying To Use A Loop All Disappears

All good until I trying to put the for loop in(no matter what I am meant to use the loop for). S… Read more I Am Working On An Html 5 Canvas And Trying To Draw Circles On It, But As I Trying To Use A Loop All Disappears