TUFLOW Message 2934

TUFLOW Message
WARNING 2934 - At least one merge polygon vertex is outside quadtree sub-domain. Current nesting level = n

Alternate Message
CHECK 2934 - At least one merge polygon vertex is located inside quadtree cell(s) from different nesting level. Processing nesting level = n

Message Type
WARNING CHECK

Description
Issues can occur in the TIN process when 2d_zsh polygons intersect with multiple quadtree levels.

Suggestions
Check by reviewing the _zsh_zpt and DEM_Z check files that the appropriate topography modifications have been applied. If they haven't options include:

• extend the 2d_qnl to cover the entire 2d_zsh,
• create a TIN using QGIS or SMS and read the TIN into TUFLOW directly (using the 'Read TIN Zpts ==' command),
• snap 2d_zsh elevation points to every 2d_zsh polygon vertex, or
• use the "NO MERGE" option and supply elevations as needed.

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