SAGA.grid_calculus.17: Fractal Brownian Noise

This tool uses uniform random to create a grid that resembles fractal Brownian noise (FBN). The advantage of FBN noise is that it appears to have texture to the human eye, that resembles the types of textures that are observed in nature; terrains, algae growth, clouds, etc. The degree of texture observed in the FBN grid is dependent upon the sizes of the wavelengths chosen. The wavelengths should be chosen so they increase in size (a doubling of successive wavelengths is a good point to start). The greater the magnitude of the "ramp" of successive wavelengths the greater the texture in the FBN grid.

Inputs

Target Grid System

string

Cellsize

number

West

number

East

number

South

number

North

number

Number of cells in East-West direction.

integer

Number of cells in North-South direction.

integer

Fit

string

use this grid's system for output grids

format
href
Please set a value for TEMPLATE.

Scaling

string

Maximum Scale

number

Steps

integer

Noise Range

number

Noise Range

number

Outputs

Fractal Brownian Noise

format
transmission

Execution options

successUri
inProgressUri
failedUri

format

mode

Execute End Point

View the execution endpoint of a process.

View the alternative version in HTML.

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", "version": "1.0.0", "jobControlOptions": ["sync-execute", "async-execute", "dismiss"], "outputTransmission": ["value", "reference"], "links": [{"rel": "http://www.opengis.net/def/rel/ogc/1.0/execute", "type": "application/json", "title": "Execute End Point", "href": "http://demo.mapmint.com/ogc-api/processes/SAGA.grid_calculus.17/execution"}, {"rel": "alternate", "type": "text/html", "title": "Execute End Point", "href": "http://demo.mapmint.com/ogc-api/processes/SAGA.grid_calculus.17/execution.html"}], "inputs": {"DEFINITION": {"title": "Target Grid System", "description": "Target Grid System", "schema": {"type": "string", "default": "user defined", "enum": ["user defined", "grid or grid system"], "nullable": true}, "id": "DEFINITION"}, "USER_SIZE": {"title": "Cellsize", "description": "Cellsize", "schema": {"type": "number", "default": 1, "format": "double", "nullable": true}, "id": "USER_SIZE"}, "USER_XMIN": {"title": "West", "description": "West", "schema": {"type": "number", "default": 0, "format": "double", "nullable": true}, "id": "USER_XMIN"}, "USER_XMAX": {"title": "East", "description": "East", "schema": {"type": "number", "default": 100, "format": "double", "nullable": true}, "id": "USER_XMAX"}, "USER_YMIN": {"title": "South", "description": "South", "schema": {"type": "number", "default": 0, "format": "double", "nullable": true}, "id": "USER_YMIN"}, "USER_YMAX": {"title": "North", "description": "North", "schema": {"type": "number", "default": 100, "format": "double", "nullable": true}, "id": "USER_YMAX"}, "USER_COLS": {"title": "Columns", "description": "Number of cells in East-West direction.", "schema": {"type": "integer", "default": 100, "nullable": true}, "id": "USER_COLS"}, "USER_ROWS": {"title": "Rows", "description": "Number of cells in North-South direction.", "schema": {"type": "integer", "default": 100, "nullable": true}, "id": "USER_ROWS"}, "USER_FITS": {"title": "Fit", "description": "Fit", "schema": {"type": "string", "default": "nodes", "enum": ["nodes", "cells"], "nullable": true}, "id": "USER_FITS"}, "TEMPLATE": {"title": "Target System", "description": "use this grid's system for output grids", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}], "nullable": true}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "TEMPLATE"}, "SCALING": {"title": "Scaling", "description": "Scaling", "schema": {"type": "string", "default": "geometric", "enum": ["linear", "geometric"], "nullable": true}, "id": "SCALING"}, "MAX_SCALE": {"title": "Maximum Scale", "description": "Maximum Scale", "schema": {"type": "number", "default": 1, "format": "double", "nullable": true}, "id": "MAX_SCALE"}, "STEPS": {"title": "Steps", "description": "Steps", "schema": {"type": "integer", "default": 8, "nullable": true}, "id": "STEPS"}, "RANGE_MIN": {"title": "Noise Range (min value)", "description": "Noise Range", "schema": {"type": "number", "nullable": true}, "id": "RANGE_MIN"}, "RANGE_MAX": {"title": "Noise Range (max value)", "description": "Noise Range", "schema": {"type": "number", "nullable": true}, "id": "RANGE_MAX"}}, "outputs": {"OUT_GRID": {"title": "Fractal Brownian Noise", "description": "Fractal Brownian Noise", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "OUT_GRID"}}}

http://demo.mapmint.com/ogc-apihttp://localhost/ogc-api/processes/SAGA.grid_calculus.17.html
Last modified: Sat Feb 19 15:43:34 CET 2022