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.
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{"id": "SAGA.grid_calculus.17", "title": "Fractal Brownian Noise", "description": "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. ", "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://tb17.geolabs.fr:8119/ogc-api/processes/SAGA.grid_calculus.17/execution"}, {"rel": "alternate", "type": "text/html", "title": "Execute End Point", "href": "http://tb17.geolabs.fr:8119/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": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}], "nullable": true}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", 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{"type": "number", "nullable": true}, "id": "RANGE_MAX"}}, "outputs": {"OUT_GRID": {"title": "Fractal Brownian Noise", "description": "Fractal Brownian Noise", "extended-schema": {"oneOf": [{"allOf": [{"$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"}}}
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http://tb17.geolabs.fr:8119/ogc-api/processes/SAGA.grid_calculus.17.html Last modified: Sat Feb 19 15:43:34 CET 2022