The relevant features from this background image series that we would like to see in the final animation are the colorbar, the colorbar label (2 meter Temperature) and the animted time annotation (here: 1991) that progresses with simulation time. All images of this series are available in the directory rcp26_85_basic. Please note that the cropped images will have been generated in the respective folders (rcp26_cropped and rcp85_cropped) with the same file names as the uncropped ones.Ĭreate animation from cropped images and background image seriesįigure 6 shows our background image series on which the cropped images will be overlaid.
The globe is positioned further to the left in Figure 3 and further to the right in Figure 5.Ĭropping can be done for single image files using the convert command and for an image file series using the command mogrify.:Ĭonvert - crop xSizexySize + xOffset + yOffset inputfile outputfile Note that we have used distinct horizontal image cutouts for the RCP2.6 and RCP8.5 images. 3 and 5.įigure 2: Sub-image for RCP2.6 before croppingįigure 4: Sub-image for RCP8.5 before cropping 4) from the original figures to the ones shown in Figs. In this step we crop the sub-images for RCP2.6 (Fig. Path to image series on Mistral: /work/kv0653/u241288/Compose-two-rotating-earthįor this how-to, we suggest that you create a new directory in a folder where you have write access.Ĭopy folder rcp26_85_basic recursively to that directory cp –r rcp26_85_basic //Ĭreate empty directories: rcp26_cropped and rcp85_cropped: mkdir rcp26_cropped mkdir rcp85_cropped ParaView to render series of image files (PNG or JPEG)įfmpeg to compose figures and generate animation (mp4 or gif)
The composite and the video encoding can be done using the command-line tools mogrify and ffmpeg, which are readily available on Mistral.įigure 1: Composite image of 2m temperature anomaly data for the optimistic (RCP2.6) and pessimistic (RCP8.5) scenario from CMIP5 simulations. Composite animations using mogrify and ffmpeg ¶įor this how-to we use an example of two rotating globes showing the projected 2m temperature anomalies from CMIP5 simulations, more specifically of the optimistic scenario RCP2.6 side by side with the pessimistic “business as usual” scenario RCP8.5 simulated with MPI-ESM.
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