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use correct applicative operation for brush lerp
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parent
9e73da9fff
commit
9c5f8b1198
33
app/Main.hs
33
app/Main.hs
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@ -101,7 +101,7 @@ testDocuments :: IntMap Document
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testDocuments = IntMap.fromList
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$ zip [0..]
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[ Document
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{ displayName = "Document 1"
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{ displayName = "Closed"
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, filePath = Nothing
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, unsavedChanges = False
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, strokes = [ Stroke ( ellipse 150 100 ( PointData Normal ( rect 30 6 $ BrushPointData Normal ) ) ) "Ellipse" True ( unsafeUnique 0 )
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@ -111,7 +111,7 @@ testDocuments = IntMap.fromList
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, zoomFactor = 1
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}
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, Document
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{ displayName = "Document 2"
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{ displayName = "Line"
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, filePath = Nothing
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, unsavedChanges = True
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, strokes = [ Stroke linePts "Line" True ( unsafeUnique 1 ) ]
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@ -119,17 +119,32 @@ testDocuments = IntMap.fromList
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, viewportCenter = Point2D 0 0
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, zoomFactor = 1
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}
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, Document
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{ displayName = "Short line"
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, filePath = Nothing
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, unsavedChanges = False
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, strokes = [ Stroke linePts2 "ShortLine" True ( unsafeUnique 2 ) ]
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, bounds = AABB ( Point2D 0 0 ) ( Point2D 50 50 )
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, viewportCenter = Point2D 0 0
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, zoomFactor = 1
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}
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]
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where
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linePts :: Seq ( StrokePoint PointData )
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linePts = Seq.fromList
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[ PathPoint ( Point2D 0 (-100) ) ( PointData Normal ( ellipse 30 8 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 ( -30) ) ( PointData Normal ( ellipse 25 6 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 ( 30) ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, PathPoint ( Point2D 0 ( 100) ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 ( 150) ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 ( 200) ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, PathPoint ( Point2D 0 ( 250) ) ( PointData Normal ( ellipse 10 1 $ BrushPointData Normal ) )
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[ PathPoint ( Point2D 0 -100 ) ( PointData Normal ( ellipse 30 8 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 -30 ) ( PointData Normal ( ellipse 25 6 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 30 ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, PathPoint ( Point2D 0 100 ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 150 ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, ControlPoint ( Point2D 0 200 ) ( PointData Normal ( ellipse 15 6 $ BrushPointData Normal ) )
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, PathPoint ( Point2D 0 250 ) ( PointData Normal ( ellipse 10 1 $ BrushPointData Normal ) )
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]
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linePts2 :: Seq ( StrokePoint PointData )
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linePts2 = Seq.fromList
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[ PathPoint ( Point2D 0 -100 ) ( PointData Normal ( ellipse 20 8 $ BrushPointData Normal ) )
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--, ControlPoint ( Point2D 0 0 ) ( PointData Normal ( ellipse 140 8 $ BrushPointData Normal ) )
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, PathPoint ( Point2D 0 100 ) ( PointData Normal ( ellipse 20 8 $ BrushPointData Normal ) )
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]
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--------------------------------------------------------------------------------
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@ -44,7 +44,7 @@ import Data.Sequence
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( Seq(..) )
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import qualified Data.Sequence as Seq
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( splitAt, drop, dropWhileL
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, zipWith3, zipWith4
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, zipWith, zipWith3, zipWith4
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)
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-- generic-lens
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@ -275,7 +275,7 @@ stroke allPts@( spt0 :<| spt1 :<| spts )
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where
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s :: Double
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s = 1 - t
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= ( fitCurve fwd, fitCurve bwd ) -- fitCurve bwd )
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= ( fitCurve fwd, fitCurve bwd )
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<~> joinAndContinue tgt3 sp3 sps
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go p0 ps = error $ "stroke: unrecognised stroke type\n" <> show ( p0 :<| ps )
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@ -291,7 +291,7 @@ removePointData :: Seq ( StrokePoint d ) -> Seq ( StrokePoint () )
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removePointData = fmap ( set ( field @"pointData" ) () )
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lerpBrush :: forall d. Show d => Double -> Seq ( StrokePoint d ) -> Seq ( StrokePoint d ) -> Seq ( StrokePoint () )
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lerpBrush t p0s p1s = f <$> p0s <*> p1s
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lerpBrush t p0s p1s = Seq.zipWith f p0s p1s
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where
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f :: StrokePoint d -> StrokePoint d -> StrokePoint ()
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f ( PathPoint { coords = p0 } )
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