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--- docs:gsvit_inputs [2015/07/17 21:25]
pklapetek
+++ docs:gsvit_inputs [2018/10/09 11:58]
pklapetek
@@ Line 1: / Line 1: @@
+===== GSvit input files =====
+As an input for GSvit, plain text files are used. The most important one
+is the parameter file (*.par) which controls all the calculation (number of steps,
+computational domain sources, etc.). Some additional files can be used e.g. for
+specifying the geometry of material inside computational domain.
+Here follows the documentation for last stable release:
 <html>
 <h3>Parameter file description</h3>
@@ Line 15: / Line 25: @@
 200 200 1e-6 1e-6 1e-6
 </tt>
+<br><br>
 <p><b>COMP</b><br>
@@ Line 24: / Line 35: @@
 </tt>
+<br><br>
 <p><b>THREADS</b><br>
 <i>nthreads</i><br>
@@ Line 36: / Line 48: @@
 </tt>
+<br><br>
 <p><b>MATMODE_CHECK</b><br>
 <i>0/1</i><br>
@@ Line 49: / Line 62: @@
 </tt>
+<br><br>
 <p><b>MEDIUM_LINEAR</b><br>
 <i>filename</i><br>
@@ Line 59: / Line 73: @@
 </p>
+<br><br>
 <p><b>MEDIUM_VECTOR</b><br>
 <i>filename</i><br>
@@ Line 117: / Line 132: @@
 <tt><br><br>
 0.89583 0 13.8737e15 0.0207332e15    1.3735 -0.504659 7.59914e15 4.28431e15      0.304478 -1.48944 6.15009e15 0.659262e15 (silver)<br>
-1.11683 0 13.1839e15 0.0207332e15     3.04155 -1.09115 4.20737e15 2.35409e15     0.273221 -1.18299 3.88123e15 0.452005e15 (gold)<br>
+1.11683 0 13.1839e15 0.109173e15     3.04155 -1.09115 4.20737e15 2.35409e15     0.273221 -1.18299 3.88123e15 0.452005e15 (gold)<br>
 1.82307 0 13.3846e15 0.163439e15      2.57278 -1.56922e-8 6.65296e15 3.80643e15  0.638294 -1.22019 3.39199e15 0.472389e15 (copper)<br>
 <br>
@@ Line 261: / Line 276: @@
 </ul>
+<br><br>
 <p><b>BOUNDARY_X0/BOUNDARY_XN/BOUNDARY_Y0/BOUNDARY_YN/BOUNDARY_Z0/BOUNDARY_ZN</b><br>
 <i>type</i><br>
@@ Line 266: / Line 282: @@
 Some combinations may lead to instabilities, e.g. corner of cpml and liao region.
+<br><br>
 <p><b>MBOUNDARY_X0/MBOUNDARY_XN/MBOUNDARY_Y0/MBOUNDARY_YN/MBOUNDARY_Z0/MBOUNDARY_ZN</b><br>
 <i>type position</i><br>
@@ Line 284: / Line 301: @@
 <b>Medium modifiers</b>
+<p><b>MEDIUM_SPECTRAL</b><br>
+<i>sigma T material_index random_seed</i><br>
+Adds roughness to objects consisting of all tabulated materials (parameter material_index is only reserved for future use) using spectral synthesis and vector displacement method. Roughness parameters sigma and T controlling variance and correlation length are given in voxels.
+Random seed can be -1 to get it randomly.
+<p><b>MEDIUM_EXPRESSION</b><br>
+<i>i_start j_start k_start i_end j_end k_end material_index void_index max_distance distance_mode expression</i><br>
+Alters object boundary using some analytical expression. In the expression, x, y and z mean the voxel coordinates. Basic mathematical functions and constants (pi) can be used.
+As an example, this combination of sine functions can create quite chaotic surface shape:
+<tt><br><br>
+MEDIUM_EXPRESSION<br>
+10 10 290 290 290 1 0 10 1 0.5+0.08*sin(x/2)+0.08*sin(y/3)+0.08*sin(z/3.8)+0.08*sin((x+y)/5)+0.08*sin((y+z)/2.5)+0.08*sin((x+z)/4.2)<br>
+</tt>
 <p><b>MEDIUM_ROUGHEN</b><br>
@@ Line 326: / Line 357: @@
 <p><i>Note that this option is not supported for direct editing by XSvit in this version</i></p>
+<br><br>
 <p><b>MEDIUM_SMOOTH</b><br>
 <i>unused_integer_parameter</i><br>
@@ Line 352: / Line 384: @@
 Theta and phi equal to zero correspond to x-direction electric field point source.</p>
+<br><br>
 <p><b>SOURCE_TSF</b><br>
 <i>i_start j_start k_start i_end j_end k_end theta phi psi mode (filename, values)</i><br>
@@ Line 383: / Line 416: @@
 <i>boundary</i><br>
 Specifies boundary that should be excluded from TSF application. Parameter "boundary"
-is string denoting which boundary is being set (i0, j0, k0, in, jn, kn). Note that
+is string denoting which boundary is being set (i0, j0, k0, in, jn, kn, depth N). Note that
 in principle TSF should be applied on all the boundaries to work properly, but in case
 of special materials or boundary conditions some boundary skipping can make sense.
+The special boundary setting "depth" followed by a positive integer number, e.g. "depth 5"
+causes solver to skip the TSF application in all the places with some material (not vacuum)
+and even some number of voxels (parameter depth) close to it. This is useful to remove only some area where material is traversing the TSF boundary from the TSF application.
 </p>

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