Clipping

Clipping is the process of limiting the region of data being visualized. View Tutorial #1 for a demonstration. Note that for best results you should grab a triangular tab on one of the transparent clip planes to move it. Always complete your clipping by pressing Enter or Esc. You might need to rotate the visualization if a plane cannot be grabbed. You can adjust the clipping to larger or smaller regions at any time you desire.

Reflectivity species... changing resolution

Reflectivity is automatically computed at the highest resolution of any of the mixing ratio grids for the various species, or the air density. Further, all of these fields are automatically promoted to that highest resolution (caveat: watch your memory level). So, if you wish to increase the resolution of the reflectivity grid, you must first increase the resolution of any of the species mixing ratio or the air density. Do this by going to the DataManager, choosing a field, and editing the Status/Resolution property. Then run the Operations->Derived Grids->Compute Reflectivity operation again. (Hint: you will probably want to go to the Data Manager and choose your old Reflectivity, and delete it by Right-Clicking and choosing Delete)

Reflectivity species... how to set

When you choose Operations->Derived Grids->Compute Reflectivity, a property inspector appears. The list that will contribute to reflectivity is found under the Remove property. If you try to edit the property value by clicking on the "(none)", you will see the list. The value "(none)" appears first so you can safely exit the pulldown without removing a field. If you want to remove a field from the contributors, click it. It will now be found under the Add pulldown, in case you change your mind. By default, all species are in the list, giving you the reflectivity that a radar would see. But sometimes it might be useful to gauge the relative contributions of the various species.

Right-click...without a mouse

Several aspects of iMRV require right-clicks of mouse buttons. There is an equivalent you should know about in case you are not using a mouse: select the appropriate item with the trackpad, and then click the trackpad with two fingers.

Rotation

To use the rotation tool, if you hover over one of the colored rings before clicking and dragging, until the cursor shows the little line through the rotation symbol, rotation will be constrained to that axis. At any other location, when the little line does not show, rotation is unconstrained.

Velocity... changing resolution

Follow the very same approach as above under the topic "Reflectivity species... changing resolution. The velocity grid is added at the highest resolution of any of the component grids.