# 8.8.3.10 IfcCartesianPointList3D

## 8.8.3.10.1 Semantic definition

The IfcCartesianPointList3D defines an ordered collection of three-dimentional Cartesian points. Each Cartesian point is provided as an three-dimensional point by a fixed list of three coordinates. The attribute CoordList is a two-dimensional list, where

• first dimension is an unbounded list representing each 3D Cartesian point;
• second dimension is a fixed list of three list members, where [1] is the x-coordinate, [2] the y-coordinate and [3] the z-coordinate of the Cartesian point.

## 8.8.3.10.5 Formal representation

ENTITY IfcCartesianPointList3D
SUBTYPE OF (IfcCartesianPointList);
CoordList : LIST [1:?] OF LIST [3:3] OF IfcLengthMeasure;
TagList : OPTIONAL LIST [1:?] OF IfcLabel;
END_ENTITY;

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