patchPlot (version 0.1.5)

drawPatches: drawPatches

Description

Draw a scatterplot with images patches as placeholders for the points.

Usage

drawPatches(data, patches, patchSize=0.05, alpha=0.5, patchNpix=20, highlight=numeric(0), labels=rep("1", length(highlight)))

Arguments

data

nx2 matrix of points positions in the 2D space.

patches

rgbpatch object, with n rows in each channel specifying n elements. The values of a row-element are mapped to pixel intensities. Patch width is deduced from patchNpix argument.

patchSize

patch size as a ratio of the whole window.

alpha

If highlight is empty, this is the alpha value for all patches. Else if a set is highlighted, highlighted elements have this alpha value, and other elements have alpha/20.

patchNpix

expected size of the image patches sides. Should match the specification of patches object.

highlight

numeric vector taking values in 1..n, indicating elements in data to highlight. Patches are associated to alpha=1 if highlighted, 0.04 if not. If no highlight is specified, all patches have alpha=1.

labels

text labels associated to highlighted elements. Defauts to "1" for all highlighted elements.

Value

NULL

See Also

drawSinglePatch drawGradient

Examples

data <- matrix(runif(20), ncol=2)
coldata <- matrix(runif(30), ncol=3)
hatchdata <- matrix(runif(30), ncol=3)
patches <- genHatchData(coldata, hatchdata)
drawPatches(data, patches)