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3d ERP/ERF display

Coloring options
Statistical coloring
Plot formats
Customizing 3d graphs
Render models
Sensor positioning
Spherical spline interpolation
plot arrays
Snapshots and printing

3d graphs are created in the "mapper" docking window and collected on the "3d view" tab of the main window. Both steps are initiated from the format 3d extended toolbar: activating the mapper (head with a green light) causes EMEGS (Qt version) to calculate the spherical spline interpolation of the loaded signals to fill the areas between the sensor positions on the head model with interpolated values. As this calculation depends on the current timing parameters (baseline settings, intervals, interval mean status), the controls for adjusting these parameters are deactivated while the mapper is active. Only the slider setting the currently displayed interval/time point remains active and can be used to "scroll" through the active signal (please note that on windows, this is considerably slower than on unix type operating system, because the linear algebra library is currently not well optimized for windows). The collection of time points on the three 3d view tab is started by hitting one the 4 plot format buttons: 2 display types (single & multiple) can be created both for only the active signal (no annotation) or for all loaded datasets (1., 2.).

All plot types will use the intervals defined on the intervals docking window: if these intervals are equally distanced segments, equally distanced surface plots will be created; if the intervals are of custom length and succession, surface plots of the same custom length and succesion are created. The single plot type will always display the  one time point selected with the interval slider on the intervals docking window. The multiple plot types will display all defined intervals.

The mapper dock widget:

The 3d view tab: