DIR : /home/kozerus/public_html/pn/uize/site-source/js/Uize/Math/Blend.todo

/home/kozerus/public_html/pn/uize/site-source/js/Uize/Math

This is a TO DO document for the =Uize.Math.Blend= module.

Node Level Defaults for Compound Curves and Quantization
	For compound curves and quantization, a way to specify a default for all properties of an object, when an object is specified in order to specify curves or quantization for some properties.

	EXAMPLE
	................................................................................
	quantization:{
		'*':1,
		opacity:0
	}
	................................................................................

	Without this ability, if you wanted quantization to be 0 for opacity, but 1 for all other properties, you'd be forced to explicitly specify it for all those other properties. The alternative would be to specify quantization:1, but then you can't have 0 for opacity.

Fully Support Blend Amounts Outside of 0 to 1
	Formally support specifying blend amounts outside of the range of =0= to =1=.

	Currently, this is partially supported as a side effect of the implementation, but there is no specific handling for curve functions which do not support values outside of the range of =0= to =1=. For curve functions, there are two possible options...

	- `Linear Extension` - the curve function is not applied when the blend amount is outside of the range, effectively making the blend linear in the extended range
	- `Looping Curve Functions` - the curve function is applied in a cyclical manner, effectively looping it to extend it  beyond the =0= to =1= range

	Linear Extension
		In order to make the blend curve linear outside of the =0= to =1= range that is supported by curve functions, one could simply take an approach like...

		.................................
		if (_blend >= 0 && _blend <= 1) {
			_blend = _curve (_blend);
		}
		.................................

		So, effectively, the curve function is not applied to the blend amount if the blend amount is outside of the =0= to =1= range.

	Looping Curve Functions
		In order to "loop" a curve function, one could take an approach like...

		..........................................................
		if (_blend < 0 || _blend > 1) {
			var _blendOffset = Math.floor (_blend);
			_blend = _blendOffset + _curve (_blend - _blendOffset);
		} else {
			_blend = _curve (_blend);
		}
		..........................................................