Why is ruler showing different numbers than a rectangle width?

[david1122]

An AI bot has been helping me try to use Draw to generate a 1280x720 PNG file, by treating it as a 128mm by 72mm page. It summarizes my problem as follows, and seems stuck:

The Core Problem

You’ve set:

• Page size: 128 mm × 72 mm
• Drawing scale: 1:1
• Unit of measurement: Millimeter
• Ruler: Set to millimeters

Yet the ruler shows 1280 units across the top, and a rectangle sized to 128 mm appears tiny—not filling the page as expected.

This is not just a pixel-vs-mm issue. It’s a breakdown in how Draw is rendering and scaling the canvas, even when using its native units.

[Hrbrgr]

@david1122

An AI bot

Perhaps the AI bot hasn’t read the manuals yet:
https://documentation.libreoffice.org/en/english-documentation/

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Starting with Draw

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And who set the page size?

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With me:

Version: 25.2.4.3 (X86_64) / LibreOffice Community
Build ID: 33e196637044ead23f5c3226cde09b47731f7e27
CPU threads: 8; OS: Windows 10 X86_64 (10.0 build 19045); UI render: Skia/Raster; VCL: win
Locale: de-DE (de_DE); UI: de-DE
Calc: CL threaded

[david1122]

Hrbrgr This is pretty much what my settings look like. Neither I nor the AI bot can figure out why the ruler is ten times longer than the rectangle.