Added parsing of mesh points in binary format

smithers/io/openfoam/mesh_parser.py

@@ -198,19 +198,18 @@ def parse_line(line):
             except ValueError:
                 pass
 
-        string_coords = content[start_idx:start_idx+num_points]
+        if not is_binary:
+            string_coords = content[start_idx:start_idx+num_points]
 
-        data = np.array(list(map(parse_line, string_coords)), dtype=float)
-        return data
-
-        #TODO binary
-        #     if is_binary:
-        #         buf = b''.join(content[n+1:])
-        #         disp = struct.calcsize('c')
-        #         vv = np.array(struct.unpack('{}d'.format(num*3),
-        #                                     buf[disp:num*3*struct.calcsize('d') + disp]))
-        #         data = vv.reshape((num, 3))
+            data = np.array(list(map(parse_line, string_coords)), dtype=float)
+        else:
+            buf = b''.join(content[start_idx-1:])
+            disp = struct.calcsize('c')
+            vv = np.array(struct.unpack('{}d'.format(num_points*3),
+                                        buf[disp:num_points*3*struct.calcsize('d') + disp]))
+            data = vv.reshape((num_points, 3))
 
+        return data
 
     @classmethod
     def parse_owner_neighbour_content(cls, content, is_binary, skip=10):

tests/test_datasets/notime_openfoam_mesh_binary/constant/polyMesh/boundary

@@ -0,0 +1,71 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  2406                                  |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    arch        "LSB;label=32;scalar=64";
+    class       polyBoundaryMesh;
+    location    "constant/polyMesh";
+    object      boundary;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+
+6
+(
+    inlet
+    {
+        type            patch;
+        nFaces          100;
+        startFace       143280;
+    }
+
+    outlet
+    {
+        type            patch;
+        nFaces          100;
+        startFace       143380;
+    }
+
+    top
+    {
+        type            wall;
+        inGroups        List<word> 1(wall);
+        nFaces          420;
+        startFace       143480;
+    }
+
+    bottom
+    {
+        type            wall;
+        inGroups        List<word> 1(wall);
+        nFaces          420;
+        startFace       143900;
+    }
+
+    obstacle
+    {
+        type            wall;
+        inGroups        List<word> 1(wall);
+        nFaces          400;
+        startFace       144320;
+    }
+
+    frontAndBack
+    {
+        type            empty;
+        inGroups        List<word> 1(empty);
+        nFaces          144000;
+        startFace       144720;
+    }
+
+)
+
+
+// ************************************************************************* //

tests/test_datasets/notime_openfoam_mesh_binary/constant/transportProperties

@@ -0,0 +1,21 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | foam-extend: Open Source CFD                    |
+|  \\    /   O peration     | Version:     4.0                                |
+|   \\  /    A nd           | Web:         http://www.foam-extend.org         |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "constant";
+    object      transportProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+transportModel  Newtonian;
+
+nu              nu [0 2 -1 0 0 0 0] 1.5e-5;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

tests/test_datasets/notime_openfoam_mesh_binary/constant/turbulenceProperties

@@ -0,0 +1,19 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | foam-extend: Open Source CFD                    |
+|  \\    /   O peration     | Version:     4.0                                |
+|   \\  /    A nd           | Web:         http://www.foam-extend.org         |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "constant";
+    object      RASProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+simulationType laminar;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

tests/test_datasets/openfoam_mesh_binary/0/U

@@ -0,0 +1,56 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  2406                                  |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      binary;
+    arch        "LSB;label=32;scalar=64";
+    class       volVectorField;
+    location    "0";
+    object      U;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [ 0 1 -1 0 0 0 0 ];
+
+internalField   uniform ( 0 0 0 );
+
+boundaryField
+{
+    inlet
+    {
+        type            fixedValue;
+        value           uniform ( 0.0001 0 0 );
+    }
+    outlet
+    {
+        type            zeroGradient;
+    }
+    top
+    {
+        type            fixedValue;
+        value           uniform ( 0 0 0 );
+    }
+    bottom
+    {
+        type            fixedValue;
+        value           uniform ( 0 0 0 );
+    }
+    obstacle
+    {
+        type            fixedValue;
+        value           uniform ( 0 0 0 );
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tests/test_datasets/openfoam_mesh_binary/0/p

@@ -0,0 +1,53 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  2406                                  |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      binary;
+    arch        "LSB;label=32;scalar=64";
+    class       volScalarField;
+    location    "0";
+    object      p;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [ 0 2 -2 0 0 0 0 ];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    inlet
+    {
+        type            zeroGradient;
+    }
+    outlet
+    {
+        type            fixedValue;
+        value           uniform 0;
+    }
+    top
+    {
+        type            zeroGradient;
+    }
+    bottom
+    {
+        type            zeroGradient;
+    }
+    obstacle
+    {
+        type            zeroGradient;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tests/test_datasets/openfoam_mesh_binary/1088/uniform/time

@@ -0,0 +1,29 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Version:  8
+     \\/     M anipulation  |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "1088/uniform";
+    object      time;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+value           1088.00000000011028;
+
+name            "1088";
+
+index           5440;
+
+deltaT          0.2;
+
+deltaT0         0.2;
+
+
+// ************************************************************************* //

tests/test_datasets/openfoam_mesh_binary/4196/uniform/time

@@ -0,0 +1,29 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Version:  8
+     \\/     M anipulation  |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "4196/uniform";
+    object      time;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+value           4195.99999999837473;
+
+name            "4196";
+
+index           20980;
+
+deltaT          0.2;
+
+deltaT0         0.2;
+
+
+// ************************************************************************* //

tests/test_datasets/openfoam_mesh_binary/constant/polyMesh/boundary

@@ -0,0 +1,71 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  2406                                  |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    arch        "LSB;label=32;scalar=64";
+    class       polyBoundaryMesh;
+    location    "constant/polyMesh";
+    object      boundary;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+
+6
+(
+    inlet
+    {
+        type            patch;
+        nFaces          100;
+        startFace       143280;
+    }
+
+    outlet
+    {
+        type            patch;
+        nFaces          100;
+        startFace       143380;
+    }
+
+    top
+    {
+        type            wall;
+        inGroups        List<word> 1(wall);
+        nFaces          420;
+        startFace       143480;
+    }
+
+    bottom
+    {
+        type            wall;
+        inGroups        List<word> 1(wall);
+        nFaces          420;
+        startFace       143900;
+    }
+
+    obstacle
+    {
+        type            wall;
+        inGroups        List<word> 1(wall);
+        nFaces          400;
+        startFace       144320;
+    }
+
+    frontAndBack
+    {
+        type            empty;
+        inGroups        List<word> 1(empty);
+        nFaces          144000;
+        startFace       144720;
+    }
+
+)
+
+
+// ************************************************************************* //