vbmeg2_plot_functions

vb_plot_cortex

Description

Plots cortex and current.

Syntax

[h] = vb_plot_cortex(plot_parm, V, F, inf_C, J, Jmin, Jmax);

Parameters

plot_parm

<<structure>> plot parameter. In order to get the default parameters, execute vb_set_plot_parm.

.LRflag

<<string>> Cortex to plot('L': Left, 'R':Right, 'LR': Both cortex).

.cmap

<<integer>> Colormap type(1:'hot', otherwise:'jet').

.wmode

<<integer>> (1:Display current as absolute value, otherwise: Display current as it is).

.color

<<vector>> Cortex color. [R G B] Each range is 0 to 1.

V

Standard cortex vertices in VBMEG coordinate. [Nvertex x 3]

F

<<structure>> Triangle patch index structure.

.F3R

Triangle patch index of right hemisphere. [NRfaces x 3]

.F3L

Triangle patch index of left hemisphere. [NLfaces x 3]

.F3

Triangle patch index of both hemisphere. [Nfaces x 3]

inf_C

Color correspoding to Gyrus in inflate data.This is used for plotting 'Inflated' model. [Nvertex x 1]

J

cortical current [Nvertex x 1]

Jmin

<<double>> (optional)Minimum current threshold to display.

Jmax

<<double>> (optional)Maximum current threshold to display.

Returns

h

handle of MATLAB light object.

vb_plot_area

Description

Plots cortical area map.

Syntax

vb_plot_area(brain_file, area_file, area_keys, area_colors, Inflate, LR);

Parameters

brain_file

VBMEG Cortical model file(.brain.mat)

area_file

(optional)VBMEG Cortical area file(.area.mat).

if not specified, only cortex model is plotted.

area_keys

(optional)plot area name list. {Narea x 1}

if not specified, all the area is plotted.

area_colors

(optional)color of area list([R G B] each from 0 to 1.) [Narea x 3]

if not specified, colormap:hsv(Narea) is used.

Inflate

(optioal)

1

Inflate model. [default]

0

Original model.

LR

(optional)

'LR'

Left and Right brain is plotted. [default]

'L'

Left brain is plotted.

'R'

Right brain is plotted.

vb_plot_sensor_2d

Description

Plots a topographic map of M/EEG field as a 2D field.

Syntax

vb_plot_sensor_2d(pos, data, clim);

Parameters

pos

3d Channel position(x,y,z) list. (see vb_load_channel) [Nsensors x 3]

data

Signal value. (see vb_load_meg_data) [Nsensors x 1]

clim

(optional)Minimum and maximum of contour map. This value is used to call MATLAB function: caxis(clim) [1x2 double]

Returns

None

Note

If the coordinate system of the sensor position pos is RAS (default of VBMEG), the contour plot will be drawn in the neurological convention, i.e., the view is above the subject and the right of the plot corresponds to the right of the subject.