Differenze

Queste sono le differenze tra la revisione selezionata e la versione attuale della pagina.

--- gvb [2014/02/03 12:58] – fatto pietro
+++ gvb [2014/11/14 14:42] (versione attuale) – typo pietro
@@ Linea 1: / Linea 1: @@
-{{:gvb:gvb-1.3.tar.gz|Click here to download version 1.3 of gvb.}}
+{{:gvb:gvb-1.4.tar.gz|Click here to download version 1.4 of gvb.}}
-{{:gvb:gvb_1.3-1_all.deb|Click here for the Debian/Ubuntu package.}}
+{{:gvb:gvb_1.4-1_all.deb|Click here for the Debian/Ubuntu package.}}
 ==== What is GVB? ====
@@ Linea 34: / Linea 34: @@
   * **But Python is slow and GVB needs a lot of calculation!**
-GVB relies on scipy for the calculation, and scipy relies on Lapack and Blas, and Lapack and Blas **aren't** slow (and they are compiled C or Fortran, not Python). So don't worry. If GVB is slow, it's because the calculations to do //really// are hard (or eventually because I did a mistake). To spot the difference between "Python code" and "Python relying on scipy", see the performance improvements between "naif" (pure Python) and "matrix naif" (scipy) methods.
+GVB relies on scipy for the calculation, and scipy relies on Lapack and Blas, and Lapack and Blas **aren't** slow (and they are compiled C or Fortran, not Python). So don't worry. If GVB is slow, it's because the calculations to do //really// are hard (or eventually because I did a mistake). To spot the difference between "Python code" and "Python relying on scipy", see the performance improvements between "naif" (pure Python) and "matrix" (scipy) methods.
   * **I need a start position not provided / I need a rectangular (non square) grid / I need to set start speeds, not only positions.**
@@ Linea 40: / Linea 40: @@
   * **I dumped a lot of png frames. How do I create a movie with them?**
-If you have ffmpeg installed, move to the directory where the pngs are and (supposing there are only //those// png) give the following command:
+If you have avconv installed, move to the directory where the pngs are and (supposing there are only //those// png) give the following command:
-  ffmpeg -i %08d.png video.mp4
+  avconv -i %08d.png video.mp4
@@ Linea 58: / Linea 58: @@
   - The ability to apply masks (select a set of points in the 2D grid that are fixed) would allow observation of interesting (and, for example, more regular) vibrations.
   - The possibility to highlight nodes (points that do not move) would be nice.
-  - Some dampering could be allowed
+  - Some dampening could be allowed
   - Elasticity and mass could vary from point to point
   - At the moment, the editor allows the creation of nearly every conceivable 1D start position. Instead, something better could be implemented to create 2D start positions.