Polygones élémentaires

Fonctions de polygone

À partir d’un ensemble de points donné, vous pouvez créer des polygones simples et calculer des quantités géométriques de base comme l’aire. Pour créer des polygones plus complexes ou accéder à des informations géométriques supplémentaires, créez un objet polyshape. Utilisez ensuite les fonctions d’objet pour modifier, faire des requêtes et visualiser le polygone ou l’ensemble de polygones.

Fonctions

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Polygones simples

`boundaryshape`	Create `polyshape` from 2-D triangulation
`inpolygon`	Points located inside or on edge of polygonal region
`nsidedpoly`	Regular polygon
`polyarea`	Area of polygon
`polybuffer`	Create buffer around points, lines, or `polyshape` objects
`rectint`	Rectangle intersection area

Objet polyshape

Créer et modifier un polyshape

`polyshape`	2-D polygonal shapes
`addboundary`	Add `polyshape` boundary
`polybuffer`	Create buffer around points, lines, or `polyshape` objects
`rmboundary`	Remove `polyshape` boundary
`rmholes`	Remove holes in `polyshape`
`rmslivers`	Remove `polyshape` boundary outliers
`rotate`	Rotate `polyshape`
`scale`	Scale `polyshape`
`simplify`	Simplify `polyshape` boundaries
`sortboundaries`	Sort `polyshape` boundaries
`sortregions`	Sort `polyshape` regions
`translate`	Translate `polyshape`

Faire de requêtes et visualiser

`boundary`	Vertex coordinates of `polyshape` boundary
`holes`	Convert `polyshape` hole boundaries to array of `polyshape` objects
`ishole`	Determine if `polyshape` boundary is a hole
`isinterior`	Query points inside `polyshape`
`issimplified`	Determine if `polyshape` is well-defined
`nearestvertex`	Query nearest `polyshape` vertex
`numboundaries`	Number of `polyshape` boundaries
`numsides`	Number of `polyshape` sides
`overlaps`	Determine whether `polyshape` objects overlap
`plot`	Plot `polyshape`
`regions`	Access `polyshape` regions

Quantités géométriques

`area`	Area of `polyshape`
`boundingbox`	Bounding box of `polyshape`
`centroid`	Centroid of `polyshape`
`convhull`	Convex hull of `polyshape`
`turningdist`	Compute turning distance between `polyshape` objects
`triangulation`	Triangulate `polyshape`
`perimeter`	Perimeter of `polyshape`

Opérations booléennes

`intersect`	Intersection of `polyshape` objects
`subtract`	Difference of two `polyshape` objects
`union`	Union of `polyshape` objects
`xor`	Exclusive OR of two `polyshape` objects