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<div class="title">ERF_EBIFTerrain.H</div> </div>
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<a href="ERF__EBIFTerrain_8H.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef ERF_TERRAIN_IF_H_</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define ERF_TERRAIN_IF_H_</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>  </div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include <AMReX_Array.H></span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <AMReX_EB2_IF_Base.H></span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  </div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <cmath></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <algorithm></span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// For all implicit functions, >0: body; =0: boundary; <0: fluid</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  </div>
<div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="classTerrainIF.html"> 12</a></span> <span class="keyword">class </span><a class="code" href="classTerrainIF.html">TerrainIF</a></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  : amrex::GPUable</div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> {</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
<div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="classTerrainIF.html#a4b36fd4f778dca2323280a99442d543f"> 17</a></span>  <a class="code" href="classTerrainIF.html#a4b36fd4f778dca2323280a99442d543f">TerrainIF</a> (amrex::FArrayBox <span class="keyword">const</span>& a_z_terrain, amrex::Geometry <span class="keyword">const</span>& a_geom,</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  amrex::Gpu::DeviceVector<amrex::Real>& a_dz_stretched)</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  : <a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(a_z_terrain.const_array()),</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <a class="code" href="classTerrainIF.html#a737713ea9ad59cb13fd2e1763a36c7f6">dz_s</a>(a_dz_stretched.data()),</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>(a_geom.CellSize(0)),</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>(a_geom.CellSize(1)),</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <a class="code" href="classTerrainIF.html#adfdc913c878099df9a97bf24717fca4d">dz</a>(a_geom.CellSize(2)),</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a>(a_geom.ProbLo(0)),</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a>(a_geom.ProbLo(1)),</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <a class="code" href="classTerrainIF.html#ab477f775a0e524969de342a55f6e9bbb">prob_lo_z</a>(a_geom.ProbLo(2)),</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <a class="code" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">prob_hi_x</a>(a_geom.ProbHi(0)),</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <a class="code" href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">prob_hi_y</a>(a_geom.ProbHi(1)),</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <a class="code" href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f">i_hi</a>(static_cast<int>(std::round((a_geom.ProbHi(0)-a_geom.ProbLo(0))/a_geom.CellSize(0)))),</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="code" href="classTerrainIF.html#a42238a84c1d59df59074f3928dc73fe4">j_hi</a>(static_cast<int>(std::round((a_geom.ProbHi(1)-a_geom.ProbLo(1))/a_geom.CellSize(1))))</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  {}</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  AMREX_GPU_HOST_DEVICE <span class="keyword">inline</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classTerrainIF.html#ad7eb62071230ad12fbaa91ec2a13f110"> 34</a></span>  amrex::Real <a class="code" href="classTerrainIF.html#ad7eb62071230ad12fbaa91ec2a13f110">operator() </a>(AMREX_D_DECL(amrex::Real <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>, amrex::Real <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>, amrex::Real <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01afbade9e36a3f36d3d676c1b808451dd7">z</a>))</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">const</span> noexcept</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">int</span> i1{};</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">int</span> j1{};</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">int</span> i2{};</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">int</span> j2{};</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  amrex::Real x1{};</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  amrex::Real x2{};</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  amrex::Real y1{};</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  amrex::Real y2{};</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  amrex::Real w1{};</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  amrex::Real w2{};</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  amrex::Real terr_z{0.};</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// z_stretched</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> k1 = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(std::floor((<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01afbade9e36a3f36d3d676c1b808451dd7">z</a>-<a class="code" href="classTerrainIF.html#ab477f775a0e524969de342a55f6e9bbb">prob_lo_z</a>) / <a class="code" href="classTerrainIF.html#adfdc913c878099df9a97bf24717fca4d">dz</a>));</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">const</span> amrex::Real z1 = <a class="code" href="classTerrainIF.html#ab477f775a0e524969de342a55f6e9bbb">prob_lo_z</a> + k1*<a class="code" href="classTerrainIF.html#adfdc913c878099df9a97bf24717fca4d">dz</a>;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">const</span> amrex::Real remainder_z = (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01afbade9e36a3f36d3d676c1b808451dd7">z</a> - z1)/<a class="code" href="classTerrainIF.html#adfdc913c878099df9a97bf24717fca4d">dz</a>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  amrex::Real z_stretched = <a class="code" href="classTerrainIF.html#ab477f775a0e524969de342a55f6e9bbb">prob_lo_z</a>;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> kk = 0; kk < k1; ++kk) {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  z_stretched += <a class="code" href="classTerrainIF.html#a737713ea9ad59cb13fd2e1763a36c7f6">dz_s</a>[kk];</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  z_stretched += remainder_z * <a class="code" href="classTerrainIF.html#a737713ea9ad59cb13fd2e1763a36c7f6">dz_s</a>[k1];</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// Interpolation (nine subregions of x-y plane)</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a> <= <a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a> && <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a> <= <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a>) {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  terr_z = <a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(0 ,0 ,0);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a> >= <a class="code" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">prob_hi_x</a> && <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a> <= <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a>) {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  terr_z = <a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(<a class="code" href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f">i_hi</a>,0 ,0);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a> >= <a class="code" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">prob_hi_x</a> && <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a> >= <a class="code" href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">prob_hi_y</a>) {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  terr_z = <a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(<a class="code" href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f">i_hi</a>,<a class="code" href="classTerrainIF.html#a42238a84c1d59df59074f3928dc73fe4">j_hi</a>,0);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (x <= prob_lo_x && y >= <a class="code" href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">prob_hi_y</a>) {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  terr_z = <a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(0 ,<a class="code" href="classTerrainIF.html#a42238a84c1d59df59074f3928dc73fe4">j_hi</a>,0);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a> > <a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a> && <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a> < <a class="code" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">prob_hi_x</a> && (y <= prob_lo_y || y >= <a class="code" href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">prob_hi_y</a>) ) {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  i1 = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(std::floor((<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>-<a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a>) / <a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>));</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  i2 = i1+1;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  x1 = <a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a> + i1*<a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  x2 = x1 + <a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  w1 = (x2-<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>)/<a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  w2 = (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>-x1)/<a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a> <= <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a>){</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  terr_z = w1*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i1,0 ,0) + w2*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i2,0 ,0);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a> >= <a class="code" href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">prob_hi_y</a>) {</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  terr_z = w1*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i1,<a class="code" href="classTerrainIF.html#a42238a84c1d59df59074f3928dc73fe4">j_hi</a>,0) + w2*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i2,<a class="code" href="classTerrainIF.html#a42238a84c1d59df59074f3928dc73fe4">j_hi</a>,0);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a> > <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a> && <a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a> < <a class="code" href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">prob_hi_y</a> && (x <= prob_lo_x || x >= <a class="code" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">prob_hi_x</a>) ) {</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  j1 = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(std::floor((<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>-<a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a>) / <a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>));</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  j2 = j1+1;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  y1 = <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a> + j1*<a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  y2 = y1 + <a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  w1 = (y2-<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>)/<a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  w2 = (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>-y1)/<a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a> <= <a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a>){</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  terr_z = w1*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(0 ,j1,0) + w2*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(0 ,j2,0);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a> >= <a class="code" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">prob_hi_x</a>) {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  terr_z = w1*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(<a class="code" href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f">i_hi</a>,j1,0) + w2*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(<a class="code" href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f">i_hi</a>,j2,0);</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// Do bilinear interpolation of the terrain surface</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  i1 = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(std::floor((<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>-<a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a>) / <a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>));</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  i2 = i1+1;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  j1 = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(std::floor((<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>-<a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a>) / <a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>));</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  j2 = j1+1;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  x1 = <a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a> + i1*<a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  x2 = x1 + <a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  y1 = <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a> + j1*<a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  y2 = y1 + <a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">const</span> amrex::Real denom = <a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>*<a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">const</span> amrex::Real w11 = (x2-<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>)*(y2-<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>)/denom;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> amrex::Real w12 = (x2-<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>)*(<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>-y1)/denom;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">const</span> amrex::Real w21 = (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>-x1)*(y2-<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>)/denom;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">const</span> amrex::Real w22 = (<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">x</a>-x1)*(<a class="code" href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">y</a>-y1)/denom;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  terr_z = w11*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i1,j1,0) + w12*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i1,j2,0) + w21*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i2,j1,0) + w22*<a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>(i2,j2,0);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> -(z_stretched - terr_z);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  AMREX_GPU_HOST_DEVICE</div>
<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="classTerrainIF.html#abaaf17ea73c5db0f4c592b6114fa8f0e"> 115</a></span>  <span class="keyword">inline</span> amrex::Real <a class="code" href="classTerrainIF.html#ad7eb62071230ad12fbaa91ec2a13f110">operator() </a>(<span class="keyword">const</span> amrex::RealArray& p) <span class="keyword">const</span> noexcept</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  {</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> this-><a class="code" href="classTerrainIF.html#ad7eb62071230ad12fbaa91ec2a13f110">operator() </a>(AMREX_D_DECL(p[0], p[1], p[2]));</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522"> 121</a></span>  amrex::Array4<amrex::Real const> <a class="code" href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">terr_arr</a>;</div>
<div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classTerrainIF.html#a737713ea9ad59cb13fd2e1763a36c7f6"> 122</a></span>  amrex::Real <span class="keyword">const</span>* <a class="code" href="classTerrainIF.html#a737713ea9ad59cb13fd2e1763a36c7f6">dz_s</a>;</div>
<div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6"> 123</a></span>  amrex::Real <a class="code" href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">dx</a>, <a class="code" href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">dy</a>, <a class="code" href="classTerrainIF.html#adfdc913c878099df9a97bf24717fca4d">dz</a>;</div>
<div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053"> 124</a></span>  amrex::Real <a class="code" href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">prob_lo_x</a>, <a class="code" href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">prob_lo_y</a>, <a class="code" href="classTerrainIF.html#ab477f775a0e524969de342a55f6e9bbb">prob_lo_z</a>;</div>
<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e"> 125</a></span>  amrex::Real <a class="code" href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">prob_hi_x</a>, <a class="code" href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">prob_hi_y</a>;</div>
<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f"> 126</a></span>  <span class="keywordtype">int</span> <a class="code" href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f">i_hi</a>, <a class="code" href="classTerrainIF.html#a42238a84c1d59df59074f3928dc73fe4">j_hi</a>;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> };</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="preprocessor">#endif</span></div>
<div class="ttc" id="aERF__DataStruct_8H_html_a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d"><div class="ttname"><a href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a415290769594460e2e485922904f345d">Coord::y</a></div><div class="ttdeci">@ y</div></div>
<div class="ttc" id="aERF__DataStruct_8H_html_a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6"><div class="ttname"><a href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01a9dd4e461268c8034f5c8564e155c67a6">Coord::x</a></div><div class="ttdeci">@ x</div></div>
<div class="ttc" id="aERF__DataStruct_8H_html_a627f1f843904477f763577ad1460de01afbade9e36a3f36d3d676c1b808451dd7"><div class="ttname"><a href="ERF__DataStruct_8H.html#a627f1f843904477f763577ad1460de01afbade9e36a3f36d3d676c1b808451dd7">Coord::z</a></div><div class="ttdeci">@ z</div></div>
<div class="ttc" id="aclassTerrainIF_html"><div class="ttname"><a href="classTerrainIF.html">TerrainIF</a></div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:14</div></div>
<div class="ttc" id="aclassTerrainIF_html_a173b6335da7186e54da1a21d2c710053"><div class="ttname"><a href="classTerrainIF.html#a173b6335da7186e54da1a21d2c710053">TerrainIF::prob_lo_x</a></div><div class="ttdeci">amrex::Real prob_lo_x</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:124</div></div>
<div class="ttc" id="aclassTerrainIF_html_a2403d44976a4f6f3b1b9e163a1f93a41"><div class="ttname"><a href="classTerrainIF.html#a2403d44976a4f6f3b1b9e163a1f93a41">TerrainIF::dy</a></div><div class="ttdeci">amrex::Real dy</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:123</div></div>
<div class="ttc" id="aclassTerrainIF_html_a42238a84c1d59df59074f3928dc73fe4"><div class="ttname"><a href="classTerrainIF.html#a42238a84c1d59df59074f3928dc73fe4">TerrainIF::j_hi</a></div><div class="ttdeci">int j_hi</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:126</div></div>
<div class="ttc" id="aclassTerrainIF_html_a4b36fd4f778dca2323280a99442d543f"><div class="ttname"><a href="classTerrainIF.html#a4b36fd4f778dca2323280a99442d543f">TerrainIF::TerrainIF</a></div><div class="ttdeci">TerrainIF(amrex::FArrayBox const &a_z_terrain, amrex::Geometry const &a_geom, amrex::Gpu::DeviceVector< amrex::Real > &a_dz_stretched)</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:17</div></div>
<div class="ttc" id="aclassTerrainIF_html_a523acccd9975c290c18bf83f740f3522"><div class="ttname"><a href="classTerrainIF.html#a523acccd9975c290c18bf83f740f3522">TerrainIF::terr_arr</a></div><div class="ttdeci">amrex::Array4< amrex::Real const > terr_arr</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:121</div></div>
<div class="ttc" id="aclassTerrainIF_html_a58aac826f646fa38e8b2087ac871813e"><div class="ttname"><a href="classTerrainIF.html#a58aac826f646fa38e8b2087ac871813e">TerrainIF::prob_hi_x</a></div><div class="ttdeci">amrex::Real prob_hi_x</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:125</div></div>
<div class="ttc" id="aclassTerrainIF_html_a737713ea9ad59cb13fd2e1763a36c7f6"><div class="ttname"><a href="classTerrainIF.html#a737713ea9ad59cb13fd2e1763a36c7f6">TerrainIF::dz_s</a></div><div class="ttdeci">amrex::Real const * dz_s</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:122</div></div>
<div class="ttc" id="aclassTerrainIF_html_a812cbe3928f890a8f461252a84054b29"><div class="ttname"><a href="classTerrainIF.html#a812cbe3928f890a8f461252a84054b29">TerrainIF::prob_lo_y</a></div><div class="ttdeci">amrex::Real prob_lo_y</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:124</div></div>
<div class="ttc" id="aclassTerrainIF_html_a9ef300b60a513a54e515d7230c9fa6b6"><div class="ttname"><a href="classTerrainIF.html#a9ef300b60a513a54e515d7230c9fa6b6">TerrainIF::dx</a></div><div class="ttdeci">amrex::Real dx</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:123</div></div>
<div class="ttc" id="aclassTerrainIF_html_ab477f775a0e524969de342a55f6e9bbb"><div class="ttname"><a href="classTerrainIF.html#ab477f775a0e524969de342a55f6e9bbb">TerrainIF::prob_lo_z</a></div><div class="ttdeci">amrex::Real prob_lo_z</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:124</div></div>
<div class="ttc" id="aclassTerrainIF_html_ac0d5a1af6e129489c058ac5308936f8f"><div class="ttname"><a href="classTerrainIF.html#ac0d5a1af6e129489c058ac5308936f8f">TerrainIF::i_hi</a></div><div class="ttdeci">int i_hi</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:126</div></div>
<div class="ttc" id="aclassTerrainIF_html_ad7eb62071230ad12fbaa91ec2a13f110"><div class="ttname"><a href="classTerrainIF.html#ad7eb62071230ad12fbaa91ec2a13f110">TerrainIF::operator()</a></div><div class="ttdeci">AMREX_GPU_HOST_DEVICE amrex::Real operator()(AMREX_D_DECL(amrex::Real x, amrex::Real y, amrex::Real z)) const noexcept</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:34</div></div>
<div class="ttc" id="aclassTerrainIF_html_adfdc913c878099df9a97bf24717fca4d"><div class="ttname"><a href="classTerrainIF.html#adfdc913c878099df9a97bf24717fca4d">TerrainIF::dz</a></div><div class="ttdeci">amrex::Real dz</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:123</div></div>
<div class="ttc" id="aclassTerrainIF_html_af7be4725cee240da9be1465a6cdea70a"><div class="ttname"><a href="classTerrainIF.html#af7be4725cee240da9be1465a6cdea70a">TerrainIF::prob_hi_y</a></div><div class="ttdeci">amrex::Real prob_hi_y</div><div class="ttdef"><b>Definition:</b> ERF_EBIFTerrain.H:125</div></div>
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