{"title":"Raster Stretch Renderer","$schema":"http://json-schema.org/draft-07/schema","description":"Displays continuous raster cell values across a gradual ramp of colors. Use this renderer to draw a single band of continuous data. This renderer works well when you have a large range of values to display, such as with imagery or scientific data.","properties":{"colorRamp":{"type":"object","$ref":"colorRamp_schema.json"},"computeGamma":{"type":"boolean","description":"Indicates if gamma values should be computed by default."},"dra":{"type":"boolean","description":"Indicates if Dynamic Range Adjustment should be applied."},"gamma":{"type":"array","description":"The list of Gamma value(s).","items":{"type":"number"}},"max":{"type":"number","description":"The current maximum output value."},"maxPercent":{"type":"number","description":"The current maximum percent value."},"min":{"type":"number","description":"The current minimum output value."},"minPercent":{"type":"number","description":"The current minimum percent value."},"numberOfStandardDeviations":{"type":"integer","description":"The number of standard deviations for standard deviation stretch."},"sigmoidStrengthLevel":{"type":"number","description":"Set this from (1 to 6) to adjust the curvature of Sigmoid curve used in color stretch."},"statistics":{"type":"array","description":"The custom raster stretch statistics.","items":{"type":"array","items":{"type":"number","minItems":4,"maxItems":4}}},"stretchType":{"type":"string","description":"The stretch types for stretch raster function.","enum":["histogramEqualization","minMax","none","percentClip","sigmoid","standardDeviation"]},"type":{"type":"string","description":"Specifies the type of renderer used.","enum":["rasterStretch"]},"useGamma":{"type":"boolean","description":"Indicates if the renderer applies Gamma stretch."}},"additionalProperties":false,"esriDocumentation":{"additionalInformation":"For each `stretchType` there are specific sets of requirements that are as follows: <br>`none`: does not require other parameters.<br>`standardDeviation`: requires numberOfStandardDeviations, statistics, or dra.<br>`histogramEqualization`: requires the source dataset to have histograms or additional dra.<br>`minMax`: requires statistics or dra.<br>`percentClip`: requires minPercent, maxPercent, and dra.<br>`sigmoid`: does not require other parameters. Optionally, set the sigmoidStrengthLevel (1 to 6) to adjust the curvature of Sigmoid curve used in color stretch.","examples":[{"code":{"renderer":{"type":"rasterStretch","stretchType":"minMax","statistics":[[-6.621397972106934,337.17144775390625,10.955521397698623,20.044026002479463]],"dra":false,"useGamma":true,"gamma":[1],"computeGamma":false}}}]}}