.... the rotation can be realised by changing "rotation_angles" in a for loop
.. creating the movie...maybe use scicv? in a for loop - set rotation angle - display the graph - save the actual graph as an image - reload the image - add image to frame see code below: Only draw back here: the avi-file could not be played afterwards..and had only 6kB in size. I guess, this is because ffmpeg is missing on my PC, but I am pretty sure that some scicv expert could solve this issue. BR Philipp scicv_Init(); R=23;N=14500; r=grand(N,1,'unf',0,R);phi=grand(N,1,'unf',0,2*%pi);theta=grand(N,1,'unf',0,%pi);x=r.*cos(phi).*sin(theta);y=r.*sin(phi).*sin(theta);z=r.*cos(theta); f = figure();f.background = 8;scatter3d(x,y,z,msizes=4);a = gca(); // create the avi filevideoWriter = new_VideoWriter("F:\testAvi.avi", CV_FOURCC('M', 'P', '4', '2'), 25, [400, 400]); for i = 0:360 a.rotation_angles = [60, i]; // save the graph as image xs2png(f.figure_id, 'F:\testImg.bmp'); // read image img = imread('F:\testImg.png', CV_LOAD_IMAGE_GRAYSCALE); // add image as frame to avi VideoWriter_write(videoWriter, img); end // free avi from memorydelete_VideoWriter(videoWriter); Am Fr., 2. Juli 2021 um 00:22 Uhr schrieb Heinz Nabielek < heinznabie...@me.com>: > Colleagues: > > the code below generates 14,500 random points in a spherical volume. > How can I make a movie that shows how the sphere rotates around the > z-axis? And how do I store the animation? animaGIF does not exist on my > Scilab 6.1 in my macOS 10.15.7 > > Heinz > > > R=23; > N=14500; > r=grand(N,1,'unf',0,R); > phi=grand(N,1,'unf',0,2*%pi); > theta=grand(N,1,'unf',0,%pi); > x=r.*cos(phi).*sin(theta); > y=r.*sin(phi).*sin(theta); > z=r.*cos(theta); > scatter3d(x,y,z,msizes=4); > gca().rotation_angles = [60, 60]; > > > ______________ > Dr Heinz Nabielek > Schüttelstrasse 77A/11 > A-1020 Wien, Österreich > Tel +43 1 276 56 13 > cell +43 677 616 349 22 > heinznabie...@me.com > _______________________________________________ > users mailing list > users@lists.scilab.org > http://lists.scilab.org/mailman/listinfo/users >
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