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1 vote
1 answer
93 views

Background: I have complex Swift Data models with some Relationships, and at some point, my Xcode Preview is no longer working when I want to init a ModelContainer in it. So I tried to debug and ...
4 votes
1 answer
103 views

I'm implementing hidden line removal for a 3D wireframe renderer using HTML5 Canvas 2D. When rendering a solid object with wireframe overlay, edges behind solid faces should be hidden. Drag to rotate. ...
3Vee's user avatar
  • 41
0 votes
1 answer
49 views

Using cropper with a fixed aspect ratio and a specific display size of 150x200. Once an image is drawn to the canvas, the canvas (or rather its container) seems to expand to an even square or a 1:1 ...
Phaelax's user avatar
  • 2,056
1 vote
1 answer
147 views

I want to achieve a transformation on the canvas using two fingers for rotation, scaling, and translation, while using one finger to paint in the correct position. What I have so far: import 'package:...
2 votes
1 answer
109 views

Intro The following code implements a draw-by-brush on an image using a canvas. The Idea is to stack a Canvas object over an ImageView, draw on it, and finally render the StackPane (image + canvas) ...
3 votes
0 answers
70 views

In the below code snippet, I draw a texture on a canvas on the left, and then call canvas.toBlob() and display the result in an <img> on the right. The resulting image has a cyan glitchy spot: ...
2 votes
0 answers
88 views

I am trying to code an animated progress wheel in Angular 20. My animation works in a vanilla javascript environment, but when ported to Angular, nothing draws on the canvas and I'm not sure why. I've ...
Advice
1 vote
4 replies
146 views

I have a TImage bitmap on a form, and a TPaintBox with the same dimensions. The user draws some polylines on the paintbox canvas. Using paintbox means they can "erase" a line if needed and ...
ChrisH's user avatar
  • 139
0 votes
1 answer
107 views

When the cursor is moved from the green canvas into the red frame, under Windows 11 a leave-event is created, but under Linux Mint no leave-event is created. What is the explanation for this? How can ...
0 votes
0 answers
30 views

Whatever I try , TKint refuses to update my canvas text twice. I have to use root.after() to change the text twice. If I do not use root.after(), which does not work, looks below: def guess(words): ...
Chihwah Li's user avatar
Advice
0 votes
0 replies
78 views

Hi guys i am trying to make a website with 3d model in it and you can apply patterns designs texts stickers on the model i am doing it with canvas atlas which is every assets renders inside the oen ...
3 votes
1 answer
796 views

After updating to Xcode 26, I’m no longer able to load SwiftUI previews in new projects. The preview pane shows the error: Cannot preview in this file. Interestingly, if I disable "Automatically ...
1 vote
0 answers
132 views

Calling renderer.render() in a requestAnimationFrame() loop will often fire faster than the <canvas> element can update its image, making any "true" FPS measurement inaccurate. In ...
0 votes
0 answers
54 views

I'm experiencing an issue in a WebKit WebView environment where a videoElement either freezes or shows corrupted frames. I'm using @mediapipe/tasks-vision to perform face-detection-based data ...
0 votes
1 answer
115 views

The ellipse() command in HTML Canvas does not render properly, as may be seen in the below snippet and screenshot: I have given the ellipse a center (117.5, 51), with radiusX = 4 and radiusY = 3.5. ...

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