TriangulatedOutline: Class containing functions and data relating to Triangulation

In retistruct: Retinal Reconstruction Program

Description

A TriangulatedOutline contains a function to create a triangulated mesh over an outline, and fields to hold the mesh information. Note that areas and lengths are all scaled using the value of the scale field.

Super classes

retistruct::OutlineCommon -> retistruct::Outline -> retistruct::PathOutline -> retistruct::AnnotatedOutline -> TriangulatedOutline

Public fields

T

3 column matrix in which each row contains IDs of points of each triangle

A

Area of each triangle in the mesh - has same number of elements as there are rows of T

A.tot

Total area of the mesh

Cu

2 column matrix in which each row contains IDs of

L

Length of each edge in the mesh - has same number of elements as there are rows of Cu

Methods

Public methods

• TriangulatedOutline$triangulate()

• TriangulatedOutline$mapTriangulatedFragment()

• TriangulatedOutline$clone()

Inherited methods

• retistruct::OutlineCommon$clearFeatureSets()

• retistruct::OutlineCommon$getFeatureSet()

• retistruct::OutlineCommon$getFeatureSets()

• retistruct::OutlineCommon$getFeatureSetTypes()

• retistruct::OutlineCommon$getIDs()

• retistruct::Outline$addFeatureSet()

• retistruct::Outline$getImage()

• retistruct::Outline$getOutlineLengths()

• retistruct::Outline$getOutlineSet()

• retistruct::Outline$getPoints()

• retistruct::Outline$getPointsScaled()

• retistruct::Outline$mapFragment()

• retistruct::Outline$mapPids()

• retistruct::Outline$replaceImage()

• retistruct::PathOutline$addPoints()

• retistruct::PathOutline$insertPoint()

• retistruct::PathOutline$nextPoint()

• retistruct::PathOutline$stitchSubpaths()

• retistruct::AnnotatedOutline$addTear()

• retistruct::AnnotatedOutline$checkTears()

• retistruct::AnnotatedOutline$computeTearRelationships()

• retistruct::AnnotatedOutline$ensureFixedPointInRim()

• retistruct::AnnotatedOutline$getFixedPoint()

• retistruct::AnnotatedOutline$getRimLengths()

• retistruct::AnnotatedOutline$getRimSet()

• retistruct::AnnotatedOutline$getTear()

• retistruct::AnnotatedOutline$getTears()

• retistruct::AnnotatedOutline$initialize()

• retistruct::AnnotatedOutline$labelTearPoints()

• retistruct::AnnotatedOutline$removeTear()

• retistruct::AnnotatedOutline$setFixedPoint()

• retistruct::AnnotatedOutline$whichTear()

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Method triangulate()

Triangulate (mesh) outline

Usage

TriangulatedOutline$triangulate(n = 200, suppress.external.steiner = FALSE)

Arguments

n

Desired number of points in mesh

suppress.external.steiner

Boolean variable describing whether to insert external Steiner points - see TriangulatedFragment

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Method mapTriangulatedFragment()

Map the point IDs of a TriangulatedFragment on the point IDs of this Outline

Usage

TriangulatedOutline$mapTriangulatedFragment(fragment, pids)

Arguments

fragment

TriangulatedFragment to map

pids

Point IDs in TriangulatedOutline of points in TriangulatedFragment

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Method clone()

The objects of this class are cloneable with this method.

Usage

TriangulatedOutline$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Author(s)

David Sterratt

Examples

P <- rbind(c(1,1),   c(2,1),  c(2,-1),
           c(1,-1),  c(1,-2), c(-1,-2),
           c(-1,-1), c(-2,-1),c(-2,1),
           c(-1,1),  c(-1,2), c(1,2))
o <- TriangulatedOutline$new(P)
o$addTear(c(3, 4, 5))
o$addTear(c(6, 7, 8))
o$addTear(c(9, 10, 11))
o$addTear(c(12, 1, 2))
flatplot(o)

retistruct documentation built on April 4, 2020, 5:08 p.m.