IXTpolygons

IXTpolygons objects exists only in matlab and are used to store a series of shapes (with related signal values). This is useful for irregular grids (such as those used in mslice). The elements in an IXTpolygons object are:

Field	Type	Description
title	char	Title of the dataset used in plotting
signal	n x 1 matrix	Signal data, this will be a single column, the length of the number of shapes that are in the object.
error	n x 1 matrix	Standard error, this will be a single column, the length of the number rof shapes that are in the object.
s_axis	IXTaxis	object containing the signal axis label and units code information
Vertices	m x 2 matrix	A list of (x,y) points that will be used to construct the shapes
Faces	n x p matrix	Contains a list of shapes, each row is a list of numbers corresponding to the rows in the vertices field. The points that these indexes correspond to will be connected to make the required shape. There are as many rows as shapes in the object.
x_axis	IXTaxis	object containing the x axis label and units code information
x_distribution	logical	True if signal is a distribution on x (e.g. counts/microsecond) False if signal is not a distribution on x (e.g. counts)
y_axis	IXTaxis	object containing the y axis label and units code information
y_distribution	logical	True if signal is a distribution on y (e.g. counts/spectrum) False if signal is not a distribution on y (e.g. counts)

The following command

test = IXTpolygons('title',[1; 2; 3], [0; 0; 0], axisdummy, [1,2; 1.5,1; 2,2; 2.5,1; 3,2],[1,2,3;2,3,4;3,4,5],axisdummy, true, axisdummy, true)
da(test)

produces the folling plot

.

Currently only the da plot command works, the same commands (such as lx) can be used after the object has been plotted.