[XSLF] Add an image to an existing placeholder

[Pablo Rivera | MediaSquare]

Hi,
Im trying to add an image to a slide using a existing placeholder. In the
examples given they attach the image to the (0,0) point of the slide with
this code

slide = ppt.createSlide(img_layout)
pictureData = File.read("image.jpeg")
image_idx = ppt.addPicture(pictureData,
xslf_picture_data_class.PICTURE_TYPE_JPEG);
pictureshape = slide.createPicture image_idx

Im going crazy to solve my problem, anyone knows the answer?

Thanks in advance