> would you can send me the script? I am very interested about using GIMP to > make/process animations, so a script that gets all the imagens in a > directory, and apply some kind of transformation in them would be very > useful for me. And I am still a Script-fu beginner :) > > thank you, > andrei
Now *that* is a noble cause. ;-) I'm not really all that crazy about Scheme (Gimp's built-in scripting language), so I don't write with it. I really, really like Python, though, and there are Python bindings for the Gimp. You can download them at http://www.daa.com.au/~james/pygimp/ Use the documentation there, plus the PDB browser, to figure out everything you can do. In the meantime, here's a quick little script I whipped up to rotate a series of images in a directory. To avoid writing something that would be trivial to do with "convert," I've put in a little twist... The first image is slightly rotated, the second a little bit more, and so on, until the last image, which goes to the user-specified rotation. Enjoy! --Joel rotate.py ----------------------------------------------------------------- #!/usr/bin/env python # # rotate.py # # animate rotating all images in a directory; The first image gets rotated # very little, progressing to the final image, which gets rotated by # a user-specified degree. # # Copyright 2002, Joel Hatch # Licensed under the GNU GPL # 18 June 2002 from gimpfu import * import math, os, traceback Error = "Error" def rotateImages(directory, degrees): "Rotate images in a directory" # Make sure the directory is valid path = os.path.normpath(directory) if not os.path.isdir(path): raise Error, "Directory %s not found" % path # Get and sort a list of files in the directory oldDir = os.getcwd() os.chdir(path) files = os.listdir(path) files.sort() # figure out how far to rotate each image; we are going to get a # group of images, and rotate each image further until the last image # is the full rotation. (convert to radians) standardRotation = (float(degrees) * math.pi) / (len(files) * 180) currentRotation = 0 for file in files: try: # load the image graphicFile = pdb.gimp_file_load(file, file) # add an alpha channnel to the bottom layer, so the background # will be transparent pdb.gimp_layer_add_alpha(graphicFile.layers[0]) # calculate how big the containing box will need to be # (our picture is a rectangle, inside a circle (the rotation), # inside a square (the containing box size). The width and # height of the containing box are the same as the diameter of # the circle, which can be found from the rectangle with d^2=w^2+h^2 size = math.sqrt(graphicFile.width**2 + graphicFile.height**2) # calculate the top left position of our image inside the # containing box top = (size - graphicFile.height)/2 left = (size - graphicFile.width)/2 # resize the image to the containing box pdb.gimp_image_resize(graphicFile, size, size, left, top) # rotate every layer in the image currentRotation = currentRotation - standardRotation for layer in graphicFile.layers: pdb.gimp_rotate(layer, FALSE, currentRotation) left, top = layer.offsets pdb.gimp_layer_resize(layer, size, size, left, top) # save and close the file if len(graphicFile.layers) > 1: finalLayer = pdb.gimp_image_merge_visible_layers(graphicFile, CLIP_TO_IMAGE) else: finalLayer = graphicFile.layers[0] finalName = "n_%s.png" % os.path.splitext(file)[0] pdb.file_png_save(graphicFile, finalLayer, finalName, finalName, \ FALSE, 6, TRUE, TRUE, TRUE, TRUE, TRUE) pdb.gimp_image_delete(graphicFile) # If you want to display the image, instead of closing it, comment the # above line, and un-comment the line below # pdb.gimp_display_new(graphicFile) except: traceback.print_exc() # change back to the default directory os.chdir(oldDir) register( "python_fu_rotate", "Rotate all images in a directory", "", "Joel Hatch", "", "16 June 2002", "<Toolbox>/Xtns/Python-Fu/Animation/Rotate", "RGB*, GRAY*", [ (PF_STRING, "Directory", "Directory containing files to rotate", ""), (PF_INT, "degrees", "Degrees to rotate the final image", "") ], [], rotateImages) main() ------------------------------------------------------ _______________________________________________ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
