I am currently working on converting client-side volume rendering code in the browser to server-side rendering using pure JavaScript.
On the server side, I am utilizing node-webgl. My objective is to send the server's canvas content to the client so that the image data can be displayed on the client side.
Before moving forward with this process, it is imperative for me to confirm that the rendering is done correctly. To achieve this, I attempted to extract canvas data using canvas.toDataURL() and display it in a separate window. However, I encountered an error during this process.
Below is the snippet of my code:
exp.js
// Code snippet for exp.js goes here
The function volumerc_main is included in the file volumercserver.js (only relevant code included).
// Code snippet for volumercserver.js goes here
As part of my code execution, I create a canvas element and attempt to draw an image based on the canvas data extracted using canvas.toDataURL(). However, when running node npm.js, I encounter the following error:
Error message output goes here
Prior to the error occurring at the toDataURL() method, the log of the canvas object looks like this:
// Log of the canvas object before the error occurs
If you have any insights or suggestions on how to resolve this issue, your assistance would be highly appreciated.