GE dynamic plot performance/behavior -- only 1/2 global maps produced

Reported by steven.c.hankin on 19 Mar 2008 18:18 UTC Note: this is a lower priority problem than other LAS V7 issues. But it seems to be a new problem that was caused by some recent changes. Maybe a simple bug ...

This report comes from testing on the current V7 release candidate installed at http://porter.pmel.noaa.gov:8680/lasV70Beta/getUI.do

The GE dynamic plots work well for zooming. But at present they cause GE to behave in unpleasant ways when rotating the earth (panning). When the initial image is global (coads_climatology), for some reason it does not cover the southern pole. That may be fine if the dataset doesn't extend that far south anyway. Tipping the globe to the Southern pole, though, causes it to dynamically request a new image. Here's the problem:

the new image that comes back is only a 1/2 globe

Thereafter GE goes into a mode where any rotation on the earth causes a new image to be requested -- even though no zoom has occurred. It becomes difficult to work with at this point. Perhaps correcting the problem at the south pole will solve the problem. Or perhaps generating global maps in response to requests for half of the earth. Maybe always over-extending the requested region would produce smoother behavior. Needs experimentation if so ...

Migrated-From: http://dunkel.pmel.noaa.gov/trac/las/ticket/460

NOAA-PMEL / LAS

GE dynamic plot performance/behavior -- only 1/2 global maps produced #466