qPLMKeymaker: Create an Orientation Key for Interpreting qPLM Overview...

In TobinH/microTransit: Quantitative Polarized Light Imaging and Analysis Tools

Create an Orientation Key for Interpreting qPLM Overview Images

Description

qPLMKeymaker creates a key image for interpreting combined colatitude (theta) and longitude (phi) "_overview.tif" images.

Usage

qPLMKeymaker(pixel.size)

Arguments

pixel.size

Dimension in pixels for square output image.

Details

The .tiff file produced by this function should appear as a colorful circle on a black background. Imagine this image as a view of the northern hemisphere of a globe, with the prime meridian directed to the right. A ray projecting from the center of the globe through the north pole (colatitude 0°) would emerge in the center of the circle, and be color-coded black. A ray emerging with a colatitude of 45°and a longitude of 45°would be color-coded as a half-saturated blue. A ray emerging at the equator with a longitude of 135° would be color-coded as a fully saturated green.

Value

Silent return in R. Saves an image with the name "x_pixel_key.tif" where x is the value of pixel.size, and displays the image to a browser window.

See Also

Other qPLM Illustration Functions: acgEllipse(), qPLMSphereSkinner(), qPLMTiff()

TobinH/microTransit documentation built on Jan. 19, 2024, 5:21 a.m.