Index - H
| HADV | Graphics.SVGFonts.Text, Graphics.SVGFonts | 
| Hair | Diagrams.TwoD.Polygons | 
| halfDart | Diagrams.TwoD.Arrowheads, Diagrams.TwoD.Arrow, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| halfDart' | Diagrams.TwoD.Arrowheads, Diagrams.TwoD.Arrow, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| halfTurn | Diagrams.Angle, Diagrams, Diagrams.Prelude | 
| has | Diagrams.Prelude | 
| hasAnchor | Diagrams.Anchors | 
| HasArcLength | Diagrams.Parametric, Diagrams, Diagrams.Prelude | 
| HasBasis | |
| 1 (Type/Class) | Diagrams.Core.Transform, Diagrams.Core | 
| 2 (Type/Class) | Diagrams, Diagrams.Prelude | 
| Hash | Diagrams.Builder.Opts | 
| hashedRegenerate | Diagrams.Builder.Opts, Diagrams.Builder | 
| hashToHexStr | Diagrams.Builder.Opts, Diagrams.Builder | 
| HasLinearMap | |
| 1 (Type/Class) | Diagrams.Core.Transform, Diagrams.Core | 
| 2 (Type/Class) | Diagrams, Diagrams.Prelude | 
| hasn't | Diagrams.Prelude | 
| HasOrigin | |
| 1 (Type/Class) | Diagrams.Core.HasOrigin, Diagrams.Core | 
| 2 (Type/Class) | Diagrams.Transform, Diagrams, Diagrams.Prelude | 
| HasPhi | Diagrams.Angle, Diagrams, Diagrams.Prelude | 
| HasQuery | Diagrams.Query, Diagrams, Diagrams.Prelude | 
| HasR | Diagrams.TwoD.Types, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| HasStyle | |
| 1 (Type/Class) | Diagrams.Core.Style, Diagrams.Core | 
| 2 (Type/Class) | Diagrams, Diagrams.Prelude | 
| HasTheta | Diagrams.Angle, Diagrams, Diagrams.Prelude | 
| hazel | Diagrams.Color.XKCD | 
| Hbox | |
| 1 (Data Constructor) | Diagrams.Backend.PGF.Hbox | 
| 2 (Type/Class) | Diagrams.Backend.PGF.Hbox, Diagrams.Backend.PGF, Diagrams.Backend.PGF.CmdLine | 
| hboxOnline | Diagrams.Backend.PGF.Hbox, Diagrams.Backend.PGF, Diagrams.Backend.PGF.CmdLine | 
| hboxPoint | Diagrams.Backend.PGF.Hbox, Diagrams.Backend.PGF, Diagrams.Backend.PGF.CmdLine | 
| hboxSurf | Diagrams.Backend.PGF.Hbox, Diagrams.Backend.PGF, Diagrams.Backend.PGF.CmdLine | 
| hboxSurfIO | Diagrams.Backend.PGF.Hbox | 
| hcat | Diagrams.TwoD.Combinators, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| hcat' | Diagrams.TwoD.Combinators, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| headGap | Diagrams.TwoD.Arrow, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| heading | |
| 1 (Function) | Diagrams.TwoD.Path.Turtle | 
| 2 (Function) | Diagrams.TwoD.Path.Turtle.Internal | 
| headLength | Diagrams.TwoD.Arrow, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| headStyle | Diagrams.TwoD.Arrow, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| headTexture | Diagrams.TwoD.Arrow, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| heather | Diagrams.Color.XKCD | 
| heavy | Diagrams.TwoD.Text, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| height | |
| 1 (Function) | Diagrams.Builder.CmdLine, Diagrams.Builder | 
| 2 (Function) | Diagrams.TwoD.Size, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| 3 (Function) | Diagrams.Backend.CmdLine | 
| heliotrope | Diagrams.Color.XKCD | 
| hendecagon | Diagrams.TwoD.Shapes, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| heptagon | Diagrams.TwoD.Shapes, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| Hexagon | Diagrams.TwoD.Tilings | 
| hexagon | Diagrams.TwoD.Shapes, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| hexGosper | Diagrams.TwoD.Path.LSystem | 
| Highlight | |
| 1 (Data Constructor) | Diagrams.ThreeD.Attributes, Diagrams.ThreeD, Diagrams, Diagrams.Prelude | 
| 2 (Type/Class) | Diagrams.ThreeD.Attributes, Diagrams.ThreeD, Diagrams, Diagrams.Prelude | 
| highlight | Diagrams.ThreeD.Attributes, Diagrams.ThreeD, Diagrams, Diagrams.Prelude | 
| highlighterGreen | Diagrams.Color.XKCD | 
| highlightIntensity | Diagrams.ThreeD.Attributes, Diagrams.ThreeD, Diagrams, Diagrams.Prelude | 
| highlightSize | Diagrams.ThreeD.Attributes, Diagrams.ThreeD, Diagrams, Diagrams.Prelude | 
| holes | Diagrams.Prelude | 
| holesOf | Diagrams.Prelude | 
| holesOn | Diagrams.Prelude | 
| holesOnOf | Diagrams.Prelude | 
| honeydew | Diagrams.Prelude | 
| hookeForce | Physics.ForceLayout | 
| horizontalAdvance | Graphics.SVGFonts.ReadFont | 
| horizontalFieldOfView | Diagrams.ThreeD.Camera, Diagrams.ThreeD, Diagrams, Diagrams.Prelude | 
| hospitalGreen | Diagrams.Color.XKCD | 
| hotGreen | Diagrams.Color.XKCD | 
| hotMagenta | Diagrams.Color.XKCD | 
| hotPink | Diagrams.Color.XKCD | 
| hotpink | Diagrams.Prelude | 
| hotPurple | Diagrams.Color.XKCD | 
| Href | Diagrams.Core.Types | 
| href | |
| 1 (Function) | Diagrams.Core.Types, Diagrams.Core | 
| 2 (Function) | Diagrams, Diagrams.Prelude | 
| hrule | Diagrams.TwoD.Shapes, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| hsep | Diagrams.TwoD.Combinators, Diagrams.TwoD, Diagrams, Diagrams.Prelude | 
| hsvBlend | Diagrams.Color.HSV | 
| Html5 | |
| 1 (Data Constructor) | Diagrams.Backend.Html5 | 
| 2 (Type/Class) | Diagrams.Backend.Html5, Diagrams.Backend.Html5.CmdLine | 
| Html5Options | Diagrams.Backend.Html5 | 
| huge | Diagrams.Attributes, Diagrams, Diagrams.Prelude | 
| hunterGreen | Diagrams.Color.XKCD | 
| H_abs | Graphics.SVGFonts.ReadPath | 
| H_rel | Graphics.SVGFonts.ReadPath |