Display Tcl Images in a Simple Image Viewer

Loon provides a simple image viewer to browse through the specified tcl image objects.

The simple GUI supports either the use of the mouse or left and right arrow keys to switch the images to the previous or next image in the specified image vector.

The images are resized to fill the viewer window.

l_imageviewer(tclimages)

Arguments

tclimages	Vector of tcl image object names.

Value

the tclimages vector is returned

Examples

img2 <- tkimage.create('photo', width=200, height=150)
tcl(img2, 'put', 'yellow', '-to', 0, 0, 199, 149)
#> <Tcl>  
tcl(img2, 'put', 'green', '-to', 40, 20, 130, 40)
#> <Tcl>  
img3 <- tkimage.create('photo', width=500, height=100)
tcl(img3, 'put', 'orange', '-to', 0, 0, 499, 99)
#> <Tcl>  
tcl(img3, 'put', 'green', '-to', 40, 80, 350, 95)
#> <Tcl>  

l_imageviewer(c(tclvalue(img2), tclvalue(img3)))
#> [1] "image163" "image164"