Slice snapping
#13417
Replies: 4 comments 11 replies
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That is still the case. Now you can also specify |
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for node centered slices as randy says smokeview draw data at vertices, the
graphic card then interpolates the colors between vertices. for cell
centered slices smokeview draws the same color for the entire cell,
centered at the cell center
…On Mon, Sep 9, 2024 at 3:14 PM fcurow ***@***.***> wrote:
Thank you. So, visually in smokeview, the values shown are discretized
down to either cell centered or vertex values? There is no further
interpolation? The visual representation of the sclf in smokeview
corresponds to the closest cell center or vertex value?
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Glenn Forney
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the slice location does not move, through cell centers for cell centered
slice files and along cell face for node centered slice files. smokeview
draws triangles not rectangles. it creates a vertex at the center of the
cell face with value the average of the 4 values at rectangle vertices. it
draws 4 triangles for each rectangle, each triangle uses the center vertex
and 2 adjacent vertices of the rectangle
…On Mon, Sep 9, 2024 at 3:44 PM fcurow ***@***.***> wrote:
Thank you. If my slice does not physically go through a node nor cell
center. CELL_CENTERED=T would results in the same color for the portion of
the slice within that cell and correspond to the value at that cell center
and if CELL_CENTERED=F then, as you write, there will be interpolation
between vertices. Will:
1. the slice location physically move in either instance?
2. when the interpolation occurs, the level of interpolation is a
function of the available pixilation? That interpolation would be based on
the 4 closest vertices weighted by distance?
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My guess is 16, but one can never be sure because the numerical representation of 15.5 is operating system dependent. |
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To whom it may concern,
Was there ever a version of FDS that snapped slices (SLCF) from their requested location to the mesh location, similar to what is done with obstructions?
Best Regards,
Sal
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