StretchRenderer class final
A stretch renderer enhances the visual contrast of raster data in a RasterLayer.
A stretch renderer uses continuous raster cell values across a gradual ramp of colors to visualize raster data. It works well when you have a large range of values to display, such as in imagery, aerial photographs, or elevation models.
Stretching improves the appearance of the raster data by spreading its cell values along a histogram whose minimum and maximum values are defined by the raster's bit depth. For example, an 8-bit raster dataset will be stretched along a histogram from 0 to 255.
- Inheritance
-
- Object
- RasterRenderer
- BaseStretchRenderer
- StretchRenderer
Constructors
-
StretchRenderer({StretchParameters? stretchParameters, required List<
double> gammas, required bool estimateStatistics, ColorRamp? colorRamp}) -
Creates a stretch renderer.
factory
Properties
- estimateStatistics → bool
-
The status of whether to estimate statistics or not when it's not
available from the data source.
no setterinherited
-
gammas
→ List<
double> -
The gamma values.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- stretchParameters → StretchParameters?
-
The stretch parameters.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited