private void Build_Click(object sender, EventArgs e)
{
int.TryParse(TxtWidth.Text, out width);
int.TryParse(TxtHeight.Text, out height);
int.TryParse(TxtDepth.Text, out depth);
FolderBrowserDialog d = new FolderBrowserDialog();
if (DialogResult.OK != d.ShowDialog())
{
return;
}
Bindings.vrBegin();
if (Bindings.vrSettingsFileNameW(d.SelectedPath + "\\Grid.model") == 0)
{
return;
}
VRT_VECTOR3 xa = new VRT_VECTOR3(1, 0, 0);
VRT_VECTOR3 ya = new VRT_VECTOR3(0, 1, 0);
VRT_VECTOR3 za = new VRT_VECTOR3(0, 0, 1);
Bindings.vrSettingsAxisOrientation(xa, ya, za);
Bindings.vrSettingsCadVersion("Grid");
Bindings.vrSettingsUnit("M", 1);
IntPtr scenenode = Bindings.vrOpenSceneNode(IntPtr.Zero, "Grid", VRT_ENUM_MATTABLE.New);
long branch = Bindings.vrOpenBranch(0, 0);
Bindings.vrBranchSetNameW(branch, "GridBranch");
Bindings.vrCloseBranch(branch);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
for (int z = 0; z < depth; z++)
{
double dx = (double)x * 0.5;
double dy = (double)y * 0.5;
double dz = (double)z * 0.5;
VRT_VECTOR3 min = new VRT_VECTOR3(dx, dy, dz);
VRT_VECTOR3 max = new VRT_VECTOR3(dx + 0.5, dy + 0.5, dz + 0.5);
IntPtr elm = Bindings.vrBeginElement();
UseColor(GetRandomColor());
CreateBox(min, max);
Bindings.vrEndElement();
Bindings.vrBranchAddElement(branch, elm);
}
}
}
Bindings.vrCloseSceneNode(scenenode);
Bindings.vrEnd();
}
/// <summary>
/// Initialize the walkinside exporter sdk. Making it ready to process STL geometry.
/// </summary>
/// <param name="projectpath">The folder where the walkinside model will be created.</param>
/// <param name="projectname">The name of the folder that contains the main walkinside project file (.vrp). </param>
/// <returns></returns>
public bool Initialize(string projectpath, string projectname)
{
// Initialize the SDK.
if (0 == Bindings.vrBegin())
{
return(false);
}
// Define the Walkinside model location.
if (Bindings.vrSettingsFileNameW(projectpath + "\\" + projectname) == 0)
{
return(false);
}
// Define the axis transformation to orientate STL geometry according Walkinside Axis.
// Walkinside: STL:
// X = Right X = Right
// Y = Up Y = ?
// Z = Depth Z = ?
VRT_VECTOR3 xa = new VRT_VECTOR3(1, 0, 0);
VRT_VECTOR3 ya = new VRT_VECTOR3(0, 0, -1); // ToDo : Possible STL axis is not well defined, and these values need to change depending model.
VRT_VECTOR3 za = new VRT_VECTOR3(0, 1, 0);
Bindings.vrSettingsAxisOrientation(xa, ya, za);
// Just provide some information of origin of walkinside model.
Bindings.vrSettingsCadVersion("Stl sdk example");
// Use meter as unit of measure.
Bindings.vrSettingsUnit("M", 1);
// Create a scene to store the geomtrical information.
m_SceneNode = Bindings.vrOpenSceneNode(IntPtr.Zero, "projectname", VRT_ENUM_MATTABLE.New);
// Create the root element in walkinside cad hierarchy.
m_RootBranch = Bindings.vrOpenBranch(0, 0);
Bindings.vrBranchSetNameW(m_RootBranch, projectname);
Bindings.vrCloseBranch(m_RootBranch);
return(true);
}
private void CreateBox(VRT_VECTOR3 minimum, VRT_VECTOR3 maximum)
{
// ---- calculate the 8 corner points ----
VRT_VECTOR3[] verCorner = new VRT_VECTOR3[8];
// corners are:
// 0 = x -y -z
// 1 = x -y z
// 2 = -x -y z
// 3 = -x -y -z
// 4 = x y -z
// 5 = x y z
// 6 = -x y z
// 7 = -x y -z
// set vertex corner coordinates
verCorner[0].x = maximum.x; verCorner[0].y = minimum.y; verCorner[0].z = minimum.z;
verCorner[1].x = maximum.x; verCorner[1].y = minimum.y; verCorner[1].z = maximum.z;
verCorner[2].x = minimum.x; verCorner[2].y = minimum.y; verCorner[2].z = maximum.z;
verCorner[3].x = minimum.x; verCorner[3].y = minimum.y; verCorner[3].z = minimum.z;
verCorner[4].x = maximum.x; verCorner[4].y = maximum.y; verCorner[4].z = minimum.z;
verCorner[5].x = maximum.x; verCorner[5].y = maximum.y; verCorner[5].z = maximum.z;
verCorner[6].x = minimum.x; verCorner[6].y = maximum.y; verCorner[6].z = maximum.z;
verCorner[7].x = minimum.x; verCorner[7].y = maximum.y; verCorner[7].z = minimum.z;
// now write the polys to the file
// polys are formed from corner points:
// face 0 = 0 1 2 3
// face 1 = 4 5 1 0
// face 2 = 7 6 5 4
// face 3 = 3 2 6 7
// face 4 = 3 7 4 0
// face 5 = 6 2 1 5
VRT_VECTOR3[] verts = new VRT_VECTOR3[4];
int[] coord = new int[4];
// Begin the primitive solution.
Bindings.vrBeginPrimitive();
for (int nrFaces = 0; nrFaces < 6; nrFaces++)
{
switch (nrFaces)
{
case 0:
coord[0] = 0; coord[1] = 1; coord[2] = 2; coord[3] = 3;
break;
case 1:
coord[0] = 0; coord[1] = 4; coord[2] = 5; coord[3] = 1;
break;
case 2:
coord[0] = 4; coord[1] = 7; coord[2] = 6; coord[3] = 5;
break;
case 3:
coord[0] = 7; coord[1] = 3; coord[2] = 2; coord[3] = 6;
break;
case 4:
coord[0] = 0; coord[1] = 3; coord[2] = 7; coord[3] = 4;
break;
case 5:
coord[0] = 5; coord[1] = 6; coord[2] = 2; coord[3] = 1;
break;
}
int counter = 0;
for (counter = 0; counter < 4; counter++)
{
verts[counter].x = verCorner[coord[counter]].x;
verts[counter].y = verCorner[coord[counter]].y;
verts[counter].z = verCorner[coord[counter]].z;
}
Bindings.vrBeginPolygon();
Bindings.vrPolyVertexArray(4, verts, 0);
Bindings.vrEndPolygon();
}
Bindings.vrEndPrimitive();
}
public bool ExportFile(string filename)
{
using (BinaryReader reader = new BinaryReader(System.IO.File.Open(filename, FileMode.Open)))
{
// Read string of element (must be 80)
char[] header = reader.ReadChars(80);
string text = new string(header);
// Define a CAD Hierarchy element to reference the 3D. (Not required, but allows the user to select the element in 3D)
long cadbranch = Bindings.vrOpenBranch(m_RootBranch, 10);
Bindings.vrBranchSetNameW(cadbranch, text);
Bindings.vrCloseBranch(cadbranch);
// Create the 3D element and assign it to the CAD Hierarchy item.
IntPtr element = Bindings.vrBeginElement();
Bindings.vrBranchAddElement(cadbranch, element);
// Read number of facets in STL file.
uint nbFacets = reader.ReadUInt32();
// Start describing the 3d primitive that will contain the mesh.
Bindings.vrBeginPrimitive();
// Iterate all facets.
for (ulong i = 0; i < nbFacets; i++)
{
// Read the normal of the facet.
VRT_VECTOR3 normal = new VRT_VECTOR3();
normal.x = reader.ReadSingle();
normal.y = reader.ReadSingle();
normal.z = reader.ReadSingle();
// Read the 3 vertices of the triangle (= facet).
VRT_VECTOR3[] vertices = new VRT_VECTOR3[3];
for (int v = 0; v < 3; v++)
{
vertices[v] = new VRT_VECTOR3();
vertices[v].x = reader.ReadSingle();
vertices[v].y = reader.ReadSingle();
vertices[v].z = reader.ReadSingle();
}
// The attribute count should be 0 according spec.
ushort attributebytecount = reader.ReadUInt16();
System.Diagnostics.Debug.Assert(attributebytecount == 0);
// Start describing a polygon.
Bindings.vrBeginPolygon();
// Send the information as an array of normals and vertices.
var normals = new VRT_VECTOR3[3] {
normal, normal, normal
};
Bindings.vrPolyNormalArray(3, normals, 0);
Bindings.vrPolyVertexArray(3, vertices, 0);
Bindings.vrEndPolygon();
}
Bindings.vrEndPrimitive();
Bindings.vrEndElement();
}
return(true);
}
