subtype does not need to implement a custom version of map, since the generic definitions + trait classes will enable the system to select the fastest version. Here is a toy implementation of map illustrating elsize(::Type{<:A}) Return the stride between consecutive elements in the array. Optional methods De- fault defini- tion Brief description stride(A, i::Int) strides(A)[i] Return the distance in necessary. For simple functions, it is often clearer to mention the role of the arguments directly in the de- scription of the function's purpose. An argument list would only repeat information already provided

subtype does not need to implement a custom version of map, since the generic definitions + trait classes will enable the system to select the fastest version. Here is a toy implementation of map illustrating elsize(::Type{<:A}) Return the stride between consecutive elements in the array. Optional methods De- fault defini- tion Brief description stride(A, i::Int) strides(A)[i] Return the distance in necessary. For simple functions, it is often clearer to mention the role of the arguments directly in the de- scription of the function's purpose. An argument list would only repeat information already provided

combining again. This has the advantage of maintaining saturation between different hues, where RGB would de-saturate. This allows for a richer gradient. Color Interpolation The interpolation method to use In the compositing context this node has the following properties. RGB De/activation of the color channel inversion. Alpha De/activation of the alpha channel inversion. 輸出 ⾊彩 Standard color output shift greater than 1.0 increases saturation. Value Value is the overall brightness of the image. De/Increasing values shift an image darker/lighter. 輸出 圖像 Standard color output. Hue/Saturation Tips

combining again. This has the advantage of maintaining saturation between different hues, where RGB would de-saturate. This allows for a richer gradient. Color Interpolation The interpolation method to use In the compositing context this node has the following properties. RGB De/activation of the color channel inversion. Alpha De/activation of the alpha channel inversion. 輸出 ⾊彩 Standard color output shift greater than 1.0 increases saturation. Value Value is the overall brightness of the image. De/Increasing values shift an image darker/lighter. 輸出 圖像 Standard color output. Hue/Saturation Tips

combining again. This has the advantage of maintaining saturation between different hues, where RGB would de-saturate. This allows for a richer gradient. Color Interpolation The interpolation method to use In the compositing context this node has the following properties. RGB De/activation of the color channel inversion. Alpha De/activation of the alpha channel inversion. 輸出 ⾊彩 Standard color output shift greater than 1.0 increases saturation. Value Value is the overall brightness of the image. De/Increasing values shift an image darker/lighter. 輸出 圖像 Standard color output. Hue/Saturation Tips

combining again. This has the advantage of maintaining saturation between different hues, where RGB would de-saturate, this allows for a richer gradient. Interpolation Options Enables the user to choose the In the compositing context this node has the following properties. RGB De/activation of the color channel inversion. Alpha De/activation of the alpha channel inversion. 輸出 ⾊彩 Standard image output shift greater than 1.0 increases saturation. Value Value is the overall brightness of the image. De/Increasing values shift an image darker/lighter. 輸出 圖像 Standard image output. Hue/Saturation Tips

combining again. This has the advantage of maintaining saturation between different hues, where RGB would de-saturate, this allows for a richer gradient. Interpolation Options Enables the user to choose the In the compositing context this node has the following properties. RGB De/activation of the color channel inversion. Alpha De/activation of the alpha channel inversion. Outputs Color Standard image shift greater than 1.0 increases saturation. Value Value is the overall brightness of the image. De/Increasing values shift an image darker/lighter. Outputs Image Standard image output. Hue/Saturation

combining again. This has the advantage of maintaining saturation between different hues, where RGB would de-saturate. This allows for a richer gradient. Color Interpolation The interpolation method to use In the compositing context this node has the following properties. RGB De/activation of the color channel inversion. Alpha De/activation of the alpha channel inversion. 輸出 ⾊彩 Standard color output shift greater than 1.0 increases saturation. Value Value is the overall brightness of the image. De/Increasing values shift an image darker/lighter. 輸出 圖像 Standard color output. Hue/Saturation Tips

combining again. This has the advantage of maintaining saturation between different hues, where RGB would de-saturate. This allows for a richer gradient. Color Interpolation The interpolation method to use In the compositing context this node has the following properties. RGB De/activation of the color channel inversion. Alpha De/activation of the alpha channel inversion. 輸出 ⾊彩 Standard color output shift greater than 1.0 increases saturation. Value Value is the overall brightness of the image. De/Increasing values shift an image darker/lighter. 輸出 圖像 Standard color output. Hue/Saturation Tips

toCHAPTER 13. METHODS 171 implement a custom version of map, since the generic definitions + trait classes will enable the system to select the fastest version. Here is a toy implementation of map illustrating you should always define at least one of Base.IteratorSize(IterType) and length(iter) because the de- fault definition of Base.IteratorSize(IterType) is Base.HasLength(). Sequential iteration is implemented while next !== nothing 199CHAPTER 16. INTERFACES 200 Method When should this method be defined? De- fault defi- nition Brief description Base.IteratorSize(IterType) If default is not appropriate