Texture Quality

[joleenf]

Hi,

Is there some way to change texture quality from a script? This is especially important for making quality globe view products.

Joleen

[bobc]

Hi Joleen -

You can set the texture quality of a layer by using setTextureQuality(). For example:

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addeParms = dict(
    server='adde.ucar.edu',
    dataset='RTIMAGES',
    descriptor='GE-VIS',
    size='ALL',
    )
metadata,data=getADDEImage(**addeParms)
panel=buildWindow()
layer=panel[0].createLayer('Image Display',data)
panel[0].setProjection('World')

From here, you can see the 'torn' edges in the upper corners from the reprojection of the display. This can be fixed by increasing the texture quality.

To see what the current value for texture quality is, you can run:

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print layer.getTextureQuality()

To set the texture quality to high, you can run:

Code: Select all

layer.setTextureQuality(1)

A texture quality of 1 is High, and anything greater than 1 decreases the texture quality. As a note, I found this in the McIDAS-V Java Docs:
Class ImagePlanViewControl
setTextureQuality

While this improves the texture quality of the display, it does not actually change the Texture Quality slider in the Layer Controls. Please let me know if you have any questions.

Thanks -
Bob Carp

[joleenf]

Bob,

What is the unit from high to low? The method does not accept float values, is this in percentage?

Joleen

[mhiley]

Hi Joleen,

I don't have any satisfying answer for what the units/meaning of the texture quality setting is, but I can tell you that for the Texture Quality slider in the "Layer Controls" tab:

"High" corresponds to 1
"Medium" corresponds to 10
"Low" corresponds to 21

Source: https://github.com/Unidata/IDV/blob/mas ... java#L7707

-Mike

[joleenf]

Okay, thanks for the information.
Joleen