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HSlice Window

Previous: Starting CSlice | Up: Intro to cslice | Next: Horizontal Velocity Overlay

The menu bar on the horizontal slice window has four sub menus.

• File - saving, printing and exiting.
• Variable - changing the variable being displayed.
• Appearance - changing the color map or shading.
• Advanced Editing - vertical slicing, zooming, contouring, overlay of velocity field.

The File menu has five menu items:

• Save Figure: Save the current figure window as a MATLAB m-file.
• Save Data: Save the grid and data information as a MATLAB mat-file.
• Save Postscript: Write the current figure out as a postscript file.
• Save Enc. Postscript: Write the current figure out as an encapsulated postscript file.
• Exit: deletes all cslice windows and exits to MATLAB prompt.

The Variable menu brings up a list of choices for a new variable to plot in the hslice window. The list of choices depends on the netCDF file you are working with. Here the horizontal variable is changed from the default depth to temperature.

The Appearance presents the user with the opportunity to change colormaps, change shading, or to autoscale the current colormap. Supported colormaps are jet, flipud(jet), gray, hsv, hot, cool, spring, summer, autumn, and winter. If the user wants to add their own colormap, that really isn't too hard to do. The user only need to take a good hard look at the colormap section in the hslice.m file. Just make a corresponding entry for your own colormap. It's that simple, as long as the function for your colormap is already defined. Four lines, max. Shading options include flat, faceted, and interp. Because the user is able to edit the color maximum and minimum via the color edit typeins (see below), it may be desirable to get the color range back to its pristine condition. The Autoscale Color menu item does this by mapping the data extrema to the colormap extrema.

The Adv. Edit menu has four items.

• Velocity Overlay: brings of control window to overlay the horizontal velocity field on the horizontal slice.
• Contour: Contours the data using the colorbar labels as contour lines.
• Vslice: With two mouse clicks on separate spots of the horizontal slice figure, another window pops up, depicting a vertical slice corresponding to the points determined by the mouse.
• Zoom - After hitting this menu item, the zoomrb function is called to enlarge an area of interest. The user must end the zoomrb function by hit enter while the pointer focus is in the horizontal figure window.

It may be desirable to change the color range of the data, or to examine horizontal slices at different depths or time steps. These tasks can be accomplished by typing in values in the widgets found at the bottom the hslice window. The figures below shows the effect of changing the color range on a slice of salinity.
Before changing the color range.

After changing the color range.