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IN DEVELOPMENT - This solver is currently under development and needs more documentation about the outputs and complete functionality.
The Roughness Point Solver determines terrain roughness characteristics at a specific geographic location for use in wind loading calculations.

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Purpose

This solver analyzes the terrain around a given point to determine appropriate roughness parameters for wind engineering calculations according to various international standards.

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Inputs

ParameterData TypeUnitsDefaultDescription
modestring-e.g. “eurocode”Region/standard to use for analysis
longitudenumberdeg-Longitude, in decimals (same format as projectDefault("longitude"))
latitudenumberdeg-Latitude, in decimals (same format as projectDefault("latitude"))

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Implementation Example

{
    "type": "sheetTemplateWidgets",
    "attributes": {
        "type": "remote",
        "solver": "gisRoughnessPoint",
        "equation": [
            {
                "result": "{
                    latitude: projectDefault(\"latitude\", 51.50003) deg,
                    longitude: projectDefault(\"longitude\", -0.12458) deg, 
                    mode: \"eurocode\"
                }",
                "condition": "@default"
            }
        ],
        "referenceId": "roughness_data"
    }
}

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Supported Standards

Currently, the solver supports:
  • Eurocode: European wind loading standard (EN 1991-1-4)
Additional standards may be added in future versions of the solver.

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Outputs

The output structure and available parameters are currently being documented. Please refer to the specific template implementation or contact the development team for the most current output format.
The solver returns terrain roughness parameters specific to the chosen standard that can be used in wind load calculations.

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Usage Notes

  • Ensure the mode parameter matches the wind standard being used in your template
  • Use project defaults for latitude and longitude when possible for consistency
  • The solver requires internet connectivity to access geographic databases
This solver is commonly used in conjunction with other GIS solvers like the Orography Solver to provide comprehensive wind loading parameters based on local terrain conditions.