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==== Todo ====
 
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* Primitive
 
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** Ellipse => PrimitiveEllipse etc
 
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* Segment
 
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** EllipticalArcTo center xAxisRotation largeArcFlag sweepFlag p1
 
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* Box
 
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** defaultBox
 
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** use function "elem" infix style
 
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* delete Layout/*
 
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* Box
 
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** splitHorizontal :: Int -> Double -> Box -> [Box] -- ^ number of boxes, space
 
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<haskell>
 
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subBoxWidth = (width - (n - 1) * subBoxMargin) / n
 
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subBoxes = map (\i -> left + i * (subBoxWidth + subBoxMargin)) [0..n-1]
 
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</haskell>
 
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* Box
 
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** splitVertical :: Int -> Double -> Box -> [Box] -- ^ number of boxes, space
 
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* Primitive
 
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** primitiveToPaths (Polygon points) =
 
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** primitiveToPaths (Polyline points) =
 
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* Shapes
 
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** RegularPolygon: Line => Polygon
 
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** Star: Line => Polygon
 
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* Color
 
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** Color = RGB Double Double Double | CMYK
 
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*** rgbColorRange1 :: Double -> Double -> Double -> Color
 
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*** rgbColorRange255 :: Int -> Int -> Int -> Color
 
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** RGBA or Paint alpha?
 
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* Path
 
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** ArcTo: http://chlor.svn.sourceforge.net/viewvc/chlor/trunk/src/core/CPath.m?revision=561&view=markup
 
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*** http://www.w3.org/TR/SVG/implnote.html#ArcImplementationNotes
 
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*** http://lib2geom.svn.sourceforge.net/viewvc/lib2geom/lib2geom/trunk/src/2geom/elliptical-arc.h
 
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*** http://lib2geom.svn.sourceforge.net/viewvc/lib2geom/lib2geom/trunk/src/2geom/elliptical-arc.cpp
 
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*** http://www.faqts.com/knowledge_base/view.phtml/aid/4313
 
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*** http://www.elbeno.com/blog/?p=469
 
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* Diagram
 
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** Histogram http://had.co.nz/ggplot2/geom_histogram.html
 
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** Pie (only for displaying fractions)
 
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** Stairs http://had.co.nz/ggplot2/geom_step.html
 
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* Path http://www.tsplines.com/resources/class_notes/Bezier_curves.pdf
 
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** degreeEvalation
 
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* Datatypes
 
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** Unit
 
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*** defaultUnit
 
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<haskell>
 
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data Unit =
 
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UnitCM
 
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| UnitEM
 
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| UnitEX
 
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| UnitIN
 
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| UnitMM
 
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| UnitPC
 
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| UnitPT
 
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| UnitPX
 
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| UnitPercent
 
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deriving(Eq, Show)
 
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</haskell>
 
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* Datatypes
 
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** <haskell>data Length = Length Unit Double deriving(Eq, Show)</haskell>
 
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* AffineTransformation
 
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** aply directly or accumulate in list of trafos?
 
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** on the level of Object or Primitive?
 
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* Shape
 
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** http://www.jroller.com/aalmiray/entry/jsilhouette_0_3_released
 
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*** http://code.google.com/p/jsilhouette/
 
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** Spiral
 
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** http://local.wasp.uwa.edu.au/~pbourke/geometry/supershape/
 
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* SVG export
 
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** SvgPath
 
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*** <pre><path d="M 100 100 L 300 100 L 200 300 z" fill="red" stroke="blue" stroke-width="3" /></pre>
 
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** SvgRectangle
 
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***<pre><rect x="400" y="100" width="400" height="200" fill="yellow" stroke="navy" stroke-width="10" />
 
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</pre>
 
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* ObjectLike: DList instead of List?
 
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* SVG XML generation
 
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** HStringTemplate?
 
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** HXT?
 
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** HaXml?
 
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* [http://hackage.haskell.org/package/colour colour]
 
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* Layout
 
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** Instances
 
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*** Column
 
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*** Grid (cols, rows, margins)
 
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*** Margin/Frame
 
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**** content size (absolute, relative, remaining)
 
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**** margin sizes (absolute, relative, remaining)
 
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* repeatedly
 
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** use HLint
 
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** use ghc -W
 
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* AffineTransformation
 
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* Path
 
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** approximate :: Double -> [(Double, Double)] -> [Segment] -- ^ error, points
 
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*** http://tog.acm.org/resources/GraphicsGems/gems/FitCurves.c
 
==== Ideas ====
==== Ideas ====

Revision as of 16:36, 12 January 2010

Contents

1 Things i think need improvement

1.1 Chlor



1.1.1 Ideas

  • layout
    • Table
    • SpaceHorizontal
    • SpaceVertical

1.2 Simplified Haskell homepage

A simplified Haskell frontpage

Why?