PolygonGen

Insert vertex.

Insert vertices

A method to perform all the ProlignPreserve transformations with a function from PT2 => PT2.

The centre of the bounding rectangle. consider also using cenDefault.

Currently throws, not sure if that is the correct behaviour. Creates a bounding rectangle for a collection of 2d points

The width of the BoundingRect of this object.

If the geometric element has a defined centre then the cenDefault uses that, else it defaults to the centre of the bounding rectangle.

The centre point of this Polygon. The default centre for Polygons is the centre of the bounding rectangle.

Performs a side effecting function on each element of this sequence in order.

Index with foreach on the data elements. Performs a side effecting function on the index and each element of the data sequence. It takes a function as a parameter. The function may return Unit. If it does return a non Unit value it is discarded. The [U] type parameter is there just to avoid warnings about discarded values and can be ignored by method users. The method has 2 versions / name overloads. The default start for the index is 0 if just the function parameter is passed. The second version name overload takes an Int for the first parameter list, to set the start value of the index. Note the function signature follows the foreach based convention of putting the collection element 2nd or last as seen for example in fold methods' (accumulator, element) => B signature.

Index with foreach on the data elements. Performs a side effecting function on the index and each element of the data sequence. It takes a function as a parameter. The function may return Unit. If it does return a non Unit value it is discarded. The [U] type parameter is there just to avoid warnings about discarded values and can be ignored by method users. The method has 2 versions / name overloads. The default start for the index is 0 if just the function parameter is passed. The second version name overload takes an Int for the first parameter list, to set the start value of the index. Note the function signature follows the foreach based convention of putting the collection element 2nd or last as seen for example in fold methods' (accumulator, element) => B signature.

The number of product elements in this collection. For example in a [[PolygonImp], this is the number of Pt2s in the Polygon

Just a handy short cut to give the length of this collection as a string.

Specialised map to an immutable SeqImut of B. For SeqGen dataMap is the same as map, but for other structures it will be different, for example a PolygonLike will map to another PolgonLike.

Foreachs over the tail of the data sequence.

foldLeft over the tail of the data sequence.

The element String allows the composition of toString for the whole collection. The syntax of the output will be reworked.

Creates a PolygonCompound graphic that is active with a simple 1 colour fill and has a draw graphic for the Polygon. The default values for the draw area line width of 2 and a colour of Black.

foreachs over the sides or edges of the Polygon These are of type LineSeg.

Map this collection of data elements to PolygonLike class of type BB.

Determines if the parameter point lies inside this Polygon.

foreachs over the sides or edges of the Polygon These are of type LineSeg.

maps with a integer counter over the sides or edges of the Polygon These are of type LineSeg.

maps with a integer counter over the sides or edges of the Polygon These are of type LineSeg.

maps over the sides or edges of the Polygon These are of type LineSeg.

Translate geometric transformation on a Polygon returns a Polygon. The return type of this method will be narrowed further in most descendant traits / classes. The exceptions being those classes where the centring of the geometry at the origin is part of the type.

Reverses the order of the elements in a new Array[Double] which is returned.

Sets / mutates elements in the Arr. This method should rarely be needed by end users, but is used by the initialisation and factory methods.

The last vertex will throw an exception on a 0 vertices polygon.

Returns the vertex of the given index. If the index is out of range, it will just circle round the vertices, so for a triangle -1 gives v2, -2 gives v1, 3 gives v0, 4 gives v1 etc. It will not throw unlike the unsafeVert method.

flatMap to an immutable Arr.

This method should be overridden in final classes.

flatMap with index to an immutable Arr.

Checks this polygon has at least 3 vertices.

This method does nothing if the vertNum < 2. Foreach vertex applies the side effecting function to the previous vertex with each vertex. The previous vertex to the first vertex is the last vertex of the PolygonLike. Note the function signature (previous, vertex) => U follows the foreach based convention of putting the collection element 2nd or last as seen for example in fold methods'(accumulator, element) => B signature.