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Travis F W boosted
Rasmus
Rasmus
@rasjor@mathstodon.xyz  ·  activity timestamp last week
Rasmus
Rasmus
@rasjor@mathstodon.xyz  ·  activity timestamp last week
Kevin Moerman 🔓🦿
Kevin Moerman 🔓🦿
@kevinmoerman@fediscience.org  ·  activity timestamp 3 weeks ago
A visualisation of Taubin smoothing of a quadrangulation (surface composed of quadrilaterals). On the left a "stepped" or voxelised surface is shown. The surface is derived from thresholding of a 3D image and therefore shows voxel steps. On the right the surface is shown after Taubin smoothing. On the right the stepped nature has been suppressed and the surface is much smoother. The surfaces shown are an isosurface of a special function which produces a dodecahedron mesh model. The surface is coloured based on the original voxel intensities.
Rasmus
Rasmus
@rasjor@mathstodon.xyz  ·  activity timestamp 2 weeks ago
Kevin Moerman 🔓🦿
Kevin Moerman 🔓🦿
@kevinmoerman@fediscience.org  ·  activity timestamp 3 weeks ago
A visualisation of Taubin smoothing of a quadrangulation (surface composed of quadrilaterals). On the left a "stepped" or voxelised surface is shown. The surface is derived from thresholding of a 3D image and therefore shows voxel steps. On the right the surface is shown after Taubin smoothing. On the right the stepped nature has been suppressed and the surface is much smoother. The surfaces shown are an isosurface of a special function which produces a dodecahedron mesh model. The surface is coloured based on the original voxel intensities.
Yogthos boosted
Simon Tatham
Simon Tatham
@simontatham@hachyderm.io  ·  activity timestamp 4 months ago
A patch of the Ammann-Beenker tiling, consisting of squares and 45° rhombuses placed so as to satisfy some constraints (not shown) on which edges can meet. This particular patch has the symmetry group of a regular octagon, about the star of rhombuses in the exact centre of the picture.
A patch of the Ammann-Beenker tiling, consisting of squares and 45° rhombuses placed so as to satisfy some constraints (not shown) on which edges can meet. This particular patch has the symmetry group of a regular octagon, about the star of rhombuses in the exact centre of the picture.
A patch of the Ammann-Beenker tiling, consisting of squares and 45° rhombuses placed so as to satisfy some constraints (not shown) on which edges can meet. This particular patch has the symmetry group of a regular octagon, about the star of rhombuses in the exact centre of the picture.
A patch of hat tiling. The hat tiles are coloured in seven rainbow colours and two shades of grey, with the darker grey corresponding to the rare reflected hats. Again, the colour of each the hat indicates something about the pattern of neighbouring hats surrounding it, although in this case the colour doesn't uniquely determine a hat's entire neighbourhood.
A patch of hat tiling. The hat tiles are coloured in seven rainbow colours and two shades of grey, with the darker grey corresponding to the rare reflected hats. Again, the colour of each the hat indicates something about the pattern of neighbouring hats surrounding it, although in this case the colour doesn't uniquely determine a hat's entire neighbourhood.
A patch of hat tiling. The hat tiles are coloured in seven rainbow colours and two shades of grey, with the darker grey corresponding to the rare reflected hats. Again, the colour of each the hat indicates something about the pattern of neighbouring hats surrounding it, although in this case the colour doesn't uniquely determine a hat's entire neighbourhood.
The key to the previous diagram. Each of the seven chair colours is shown with a neighbourhood of surrounding chairs, each in a different pattern. These neighbourhoods are how the colours were chosen in the previous picture: each chair is coloured according to which of these patterns matches its neighbouring tiles, if it's rotated into the orientation shown here.
The key to the previous diagram. Each of the seven chair colours is shown with a neighbourhood of surrounding chairs, each in a different pattern. These neighbourhoods are how the colours were chosen in the previous picture: each chair is coloured according to which of these patterns matches its neighbouring tiles, if it's rotated into the orientation shown here.
The key to the previous diagram. Each of the seven chair colours is shown with a neighbourhood of surrounding chairs, each in a different pattern. These neighbourhoods are how the colours were chosen in the previous picture: each chair is coloured according to which of these patterns matches its neighbouring tiles, if it's rotated into the orientation shown here.
A patch of the 'chair' tiling, consisting of chairs (L-triominoes) organised in the plane via iteration of a substitution system in which each chair is expanded into four half-sized chairs that fill the same space. In this picture, the chairs are in seven different rainbow colours, in a way that is not a proper 7-colouring (some clusters of adjacent yellow chairs can be seen), but appears to have some relation to the pattern of the tiling itself.
A patch of the 'chair' tiling, consisting of chairs (L-triominoes) organised in the plane via iteration of a substitution system in which each chair is expanded into four half-sized chairs that fill the same space. In this picture, the chairs are in seven different rainbow colours, in a way that is not a proper 7-colouring (some clusters of adjacent yellow chairs can be seen), but appears to have some relation to the pattern of the tiling itself.
A patch of the 'chair' tiling, consisting of chairs (L-triominoes) organised in the plane via iteration of a substitution system in which each chair is expanded into four half-sized chairs that fill the same space. In this picture, the chairs are in seven different rainbow colours, in a way that is not a proper 7-colouring (some clusters of adjacent yellow chairs can be seen), but appears to have some relation to the pattern of the tiling itself.
Laurent Malys
Laurent Malys
@lo@framapiaf.org  ·  activity timestamp last month
Abstract animation. White lines over black background. A hexagonal grid with inhomogeneous tessellation pattern that move from right to left while
Laurent Malys
Laurent Malys
@lo@framapiaf.org  ·  activity timestamp last month
Abstract animation. White lines over black background. A hexagonal grid with inhomogeneous tessellation pattern that move from right to left while
Global Museum
Global Museum
@globalmuseum@mastodon.online  ·  activity timestamp 2 months ago
Each cephalopod's chromatophore organ comprises an elastic sac containing pigment of different colors
oschene
oschene
@oschene@mastodon.social  ·  activity timestamp 2 months ago
Rasmus
Rasmus
@rasjor@mathstodon.xyz  ·  activity timestamp 2 months ago