PolygonM3

Performs the side effecting function on the PtM3 value of each vertex.

This method does nothing if the vertNum < 2. Foreach PtM3 vertex applies the side effecting function to the previous PtM3 vertex with each vertex. The previous vertex to the first vertex is the last vertex of this PolygonM3. 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.

All vertices have a non negative Z component.

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.

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

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.

This method should be overridden in final classes.

Checks this polygon has at least 3 vertices.