Extension { #name : #Point } { #category : #'*Diya' } Point >> applyTf: tf [ ^(tf +* (self asArray3F)) asPoint ] { #category : #'*Diya' } Point >> asArray3F [ ^ self asArray3F: 1.0 ] { #category : #'*Diya' } Point >> asArray3F: z [ ^ { self x. self y. z } ] { #category : #'*Diya' } Point >> asGLCoord [ |res| res := DiyaRendererContext uniqueInstance resolution. ^(self / ( res / 2.0)) + (-1.0@ -1.0). ] { #category : #'*Diya' } Point >> glNormalise [ |res p| res := DiyaRendererContext uniqueInstance resolution. p := self / (res/ 2). ^ (p x asFloat) @ (p y asFloat) ]