private static bool loadModelSTL_binary(SimpleMeshCollection simpleModel, string filename, Matrix4X4 matrix) { SimpleMesh vol = new SimpleMesh(); using (FileStream stlStream = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) { // load it as a binary stl // skip the first 80 bytes // read in the number of triangles stlStream.Position = 0; BinaryReader br = new BinaryReader(stlStream); byte[] fileContents = br.ReadBytes((int)stlStream.Length); int currentPosition = 80; if (fileContents.Length < currentPosition) { return(false); } uint numTriangles = System.BitConverter.ToUInt32(fileContents, currentPosition); long bytesForNormals = numTriangles * 3 * 4; long bytesForVertices = numTriangles * 3 * 4; long bytesForAttributs = numTriangles * 2; currentPosition += 4; long numBytesRequiredForVertexData = currentPosition + bytesForNormals + bytesForVertices + bytesForAttributs; if (fileContents.Length < numBytesRequiredForVertexData || numTriangles < 0) { stlStream.Close(); return(false); } IntPoint[] vector = new IntPoint[3]; for (int i = 0; i < numTriangles; i++) { // skip the normal currentPosition += 3 * 4; for (int j = 0; j < 3; j++) { var vertex = new MatterHackers.VectorMath.Vector3( System.BitConverter.ToSingle(fileContents, currentPosition + 0 * 4), System.BitConverter.ToSingle(fileContents, currentPosition + 1 * 4), System.BitConverter.ToSingle(fileContents, currentPosition + 2 * 4)); var new0 = VectorMath.Vector3.Transform(vertex, matrix); vector[j] = new IntPoint(new0.X * 1000, new0.Y * 1000, new0.Z * 1000); currentPosition += 3 * 4; } currentPosition += 2; // skip the attribute vol.addFaceTriangle(vector[2], vector[1], vector[0]); } } if (vol.faceTriangles.Count > 0) { simpleModel.SimpleMeshes.Add(vol); return(true); } return(false); }
public static bool loadModelSTL_ascii(SimpleMeshCollection simpleModel, string filename, Matrix4X4 matrix) { SimpleMesh vol = new SimpleMesh(); using (StreamReader f = new StreamReader(filename)) { // check for "SOLID" var vertex = default(MatterHackers.VectorMath.Vector3); int n = 0; IntPoint v0 = new IntPoint(0, 0, 0); IntPoint v1 = new IntPoint(0, 0, 0); IntPoint v2 = new IntPoint(0, 0, 0); string line = f.ReadLine(); Regex onlySingleSpaces = new Regex("\\s+", RegexOptions.Compiled); int lineCount = 0; while (line != null) { if (lineCount++ > 100 && vol.faceTriangles.Count == 0) { return(false); } line = onlySingleSpaces.Replace(line, " "); var parts = line.Trim().Split(' '); if (parts[0].Trim() == "vertex") { vertex.X = Convert.ToDouble(parts[1]); vertex.Y = Convert.ToDouble(parts[2]); vertex.Z = Convert.ToDouble(parts[3]); // change the scale from mm to micrometers n++; switch (n) { case 1: var new0 = VectorMath.Vector3Ex.Transform(vertex, matrix) * 1000; v0 = new IntPoint(new0.X, new0.Y, new0.Z); break; case 2: var new1 = VectorMath.Vector3Ex.Transform(vertex, matrix) * 1000; v1 = new IntPoint(new1.X, new1.Y, new1.Z); break; case 3: var new2 = VectorMath.Vector3Ex.Transform(vertex, matrix) * 1000; v2 = new IntPoint(new2.X, new2.Y, new2.Z); vol.addFaceTriangle(v0, v1, v2); n = 0; break; } } line = f.ReadLine(); } } if (vol.faceTriangles.Count > 3) { simpleModel.SimpleMeshes.Add(vol); return(true); } return(false); }
private static bool loadModelSTLStream_binary(SimpleMeshCollection simpleModel, Stream stlStream, Matrix4X4 matrix) { SimpleMesh vol = new SimpleMesh(); // load it as a binary stl // skip the first 80 bytes // read in the number of triangles stlStream.Position = 0; BinaryReader br = new BinaryReader(stlStream); byte[] fileContents = br.ReadBytes((int)stlStream.Length); int currentPosition = 80; if (fileContents.Length < currentPosition) { return(false); } uint numTriangles = System.BitConverter.ToUInt32(fileContents, currentPosition); long bytesForNormals = numTriangles * 3 * 4; long bytesForVertices = numTriangles * 3 * 4; long bytesForAttributs = numTriangles * 2; currentPosition += 4; long numBytesRequiredForVertexData = currentPosition + bytesForNormals + bytesForVertices + bytesForAttributs; if (fileContents.Length < numBytesRequiredForVertexData || numTriangles < 0) { stlStream.Close(); return(false); } IntPoint[] vector = new IntPoint[3]; for (int i = 0; i < numTriangles; i++) { // skip the normal currentPosition += 3 * 4; for (int j = 0; j < 3; j++) { var vertex = new MatterHackers.VectorMath.Vector3( System.BitConverter.ToSingle(fileContents, currentPosition + 0 * 4), System.BitConverter.ToSingle(fileContents, currentPosition + 1 * 4), System.BitConverter.ToSingle(fileContents, currentPosition + 2 * 4)); var new0 = VectorMath.Vector3Ex.Transform(vertex, matrix); vector[j] = new IntPoint(new0.X * 1000, new0.Y * 1000, new0.Z * 1000); currentPosition += 3 * 4; } currentPosition += 2; // skip the attribute vol.addFaceTriangle(vector[2], vector[1], vector[0]); } // Detect and skip non-visible mesh var bounds = vol.maxXYZ_um() - vol.minXYZ_um(); if (vol.faceTriangles.Count > 0) { if (bounds.X == 0) { vol.faceTriangles = new List <SimpleFace>(); } simpleModel.SimpleMeshes.Add(vol); return(true); } return(false); }
private static bool loadModelSTL_binary(SimpleMeshCollection simpleModel, string filename, FMatrix3x3 matrix) { SimpleMesh vol = new SimpleMesh(); using (FileStream stlStream = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) { // load it as a binary stl // skip the first 80 bytes // read in the number of triangles stlStream.Position = 0; BinaryReader br = new BinaryReader(stlStream); byte[] fileContents = br.ReadBytes((int)stlStream.Length); int currentPosition = 80; uint numTriangles = System.BitConverter.ToUInt32(fileContents, currentPosition); long bytesForNormals = numTriangles * 3 * 4; long bytesForVertices = numTriangles * 3 * 4; long bytesForAttributs = numTriangles * 2; currentPosition += 4; long numBytesRequiredForVertexData = currentPosition + bytesForNormals + bytesForVertices + bytesForAttributs; if (fileContents.Length < numBytesRequiredForVertexData || numTriangles < 0) { stlStream.Close(); return false; } Point3[] vector = new Point3[3]; for (int i = 0; i < numTriangles; i++) { // skip the normal currentPosition += 3 * 4; for (int j = 0; j < 3; j++) { vector[j] = new Point3( System.BitConverter.ToSingle(fileContents, currentPosition + 0 * 4) * 1000, System.BitConverter.ToSingle(fileContents, currentPosition + 1 * 4) * 1000, System.BitConverter.ToSingle(fileContents, currentPosition + 2 * 4) * 1000); currentPosition += 3 * 4; } currentPosition += 2; // skip the attribute vol.addFaceTriangle(vector[2], vector[1], vector[0]); } } if (vol.faceTriangles.Count > 0) { simpleModel.SimpleMeshes.Add(vol); return true; } return false; }
public static bool loadModelSTL_ascii(SimpleMeshCollection simpleModel, string filename, FMatrix3x3 matrix) { SimpleMesh vol = new SimpleMesh(); using (StreamReader f = new StreamReader(filename)) { // check for "SOLID" Vector3 vertex = new Vector3(); int n = 0; Point3 v0 = new Point3(0, 0, 0); Point3 v1 = new Point3(0, 0, 0); Point3 v2 = new Point3(0, 0, 0); string line = f.ReadLine(); Regex onlySingleSpaces = new Regex("\\s+", RegexOptions.Compiled); int lineCount = 0; while (line != null) { if(lineCount++ > 100 && vol.faceTriangles.Count == 0) { return false; } line = onlySingleSpaces.Replace(line, " "); var parts = line.Trim().Split(' '); if (parts[0].Trim() == "vertex") { vertex.x = Convert.ToDouble(parts[1]); vertex.y = Convert.ToDouble(parts[2]); vertex.z = Convert.ToDouble(parts[3]); // change the scale from mm to micrometers vertex *= 1000.0; n++; switch (n) { case 1: v0 = matrix.apply(vertex); break; case 2: v1 = matrix.apply(vertex); break; case 3: v2 = matrix.apply(vertex); vol.addFaceTriangle(v0, v1, v2); n = 0; break; } } line = f.ReadLine(); } } if (vol.faceTriangles.Count > 3) { simpleModel.SimpleMeshes.Add(vol); return true; } return false; }
public static bool loadModelSTL_ascii(SimpleMeshCollection simpleModel, string filename, FMatrix3x3 matrix) { SimpleMesh vol = new SimpleMesh(); using (StreamReader f = new StreamReader(filename)) { // check for "SOLID" Vector3 vertex = new Vector3(); int n = 0; Point3 v0 = new Point3(0, 0, 0); Point3 v1 = new Point3(0, 0, 0); Point3 v2 = new Point3(0, 0, 0); string line = f.ReadLine(); Regex onlySingleSpaces = new Regex("\\s+", RegexOptions.Compiled); int lineCount = 0; while (line != null) { if (lineCount++ > 100 && vol.faceTriangles.Count == 0) { return(false); } line = onlySingleSpaces.Replace(line, " "); var parts = line.Trim().Split(' '); if (parts[0].Trim() == "vertex") { vertex.x = Convert.ToDouble(parts[1]); vertex.y = Convert.ToDouble(parts[2]); vertex.z = Convert.ToDouble(parts[3]); // change the scale from mm to micrometers vertex *= 1000.0; n++; switch (n) { case 1: v0 = matrix.apply(vertex); break; case 2: v1 = matrix.apply(vertex); break; case 3: v2 = matrix.apply(vertex); vol.addFaceTriangle(v0, v1, v2); n = 0; break; } } line = f.ReadLine(); } } if (vol.faceTriangles.Count > 3) { simpleModel.SimpleMeshes.Add(vol); return(true); } return(false); }