[Bug]: The image has not been exported full under the 'overall' option., but I was not use any other custom renderer #6942

Describe the bug / 问题描述

I exported an image using toDataURL, but the image was not fully rendered. After checking my code, I found that I did not use any custom renderer. It seems that the graph cannot correctly calculate the size of nodes at the edge of the canvas. Additionally, we might need a padding option.

Reproduction link / 复现链接

No response

Steps to Reproduce the Bug or Issue / 重现步骤

No response

Version / 版本

🆕 5.x

OS / 操作系统

• macOS
• Windows
• Linux
• Others / 其他

Browser / 浏览器

• Chrome
• Edge
• Firefox
• Safari (Limited support / 有限支持)
• IE (Nonsupport / 不支持)
• Others / 其他