AGSColorRamp Class Reference
Description
A color ramp representing a range of colors.
An instance of this class represents a color ramp specifying a range of colors useful for displaying continuous raster data such as elevation or precipitation. Color ramps are used with AGSBlendRenderer and AGSStretchRenderer to visualize raster data.
- Since
- 100
Inheritance diagram for AGSColorRamp:
Instance Methods | |
| (nullable instancetype) | - initWithType:size: |
Class Methods | |
| (nullable instancetype) | + colorRampWithType:size: |
Method Documentation
◆ colorRampWithType:size:
| + (nullable instancetype) colorRampWithType: | (AGSPresetColorRampType) | type | |
| size: | (NSInteger) | size | |
Initialize color ramp with specified parameters
- Parameters
-
type The predefined color ramp type size of the color ramp. Use at least 256 to achieve a reasonable color transition, but for smoother transitions use larger values (for eg 20,000-30,000) to match the number of unique pixel values in your raster data.
- Note
- This is a failable initializer. Specifying a size that is too small for the color ramp type will return nil.
- Returns
- Initialized color ramp
- Since
- 100
◆ initWithType:size:
| - (nullable instancetype) initWithType: | (AGSPresetColorRampType) | type | |
| size: | (NSInteger) | size | |
Initialize color ramp with specified parameters
- Parameters
-
type The predefined color ramp type size of the color ramp. Use at least 256 to achieve a reasonable color transition, but for smoother transitions use larger values (for eg 20,000-30,000) to match the number of unique pixel values in your raster data.
- Note
- This is a failable initializer. Specifying a size that is too small for the color ramp type will return nil.
- Returns
- Initialized color ramp
- Since
- 100
