Home Check reads the middle scale from the terrain around the site and draws contour lines automatically on the map.
Glossary · Landform & water
Middle scale中局
Explanation
Contour lines are the main tool here: close lines mean steep ground, wide spacing means flat; water always runs at right angles to the contours, from high to low.
The middle scale links the grand and small scales and explains why two neighbourhoods on the same river can sit on very different ground.
How Home Check uses it
Questions
Does flat land have a middle scale?
Yes. Even lowlands vary by a few metres, and those small differences decide which way water runs.
What is needed to read the middle scale?
The site's location and the surrounding terrain; in Home Check, a project with a location is enough.
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Markdown version of this page Index for machine readers (llms.txt)