def doExport(inputFilePath, outputFilePath, resolution, FOLDERNAME):
mesh = list(stl_reader.read_stl_verticies(inputFilePath))
(scale, shift, bounding_box) = slice.calculateScaleAndShift(mesh, resolution)
mesh = list(slice.scaleAndShiftMesh(mesh, scale, shift))
#Note: vol should be addressed with vol[z][x][y]
vol = np.zeros((bounding_box[2],bounding_box[0],bounding_box[1]), dtype=bool)
for height in range(bounding_box[2]):
print('Processing layer %d/%d'%(height+1,bounding_box[2]))
lines = slice.toIntersectingLines(mesh, height)
prepixel = np.zeros((bounding_box[0], bounding_box[1]), dtype=bool)
perimeter.linesToVoxels(lines, prepixel)
vol[height] = prepixel
vol, bounding_box = padVoxelArray(vol)
outputFilePattern, outputFileExtension = os.path.splitext(outputFilePath)
currentPath = os.getcwd()
outputFilePath = os.path.join(currentPath, outputFilePath)
if outputFileExtension == '.png':
exportPngs(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.xyz':
exportXyz(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.svx':
exportSvx(vol, bounding_box, outputFilePath, scale, shift)
voxelSum(FOLDERNAME)
for i in range(2):
os.chdir('..')
def voxelsFromStl (inputFilePath, resolution):
mesh = list(stl_reader.read_stl_verticies(inputFilePath))
(scale, shift, bounding_box) = slice.calculateScaleAndShift(mesh, resolution)
mesh = list(slice.scaleAndShiftMesh(mesh, scale, shift))
#Note: vol should be addressed with vol[z][x][y]
vol = np.zeros((bounding_box[2],bounding_box[0],bounding_box[1]), dtype=bool)
for height in range(bounding_box[2]):
# print('Processing layer %d/%d'%(height+1,bounding_box[2]))
lines = slice.toIntersectingLines(mesh, height)
prepixel = np.zeros((bounding_box[0], bounding_box[1]), dtype=bool)
perimeter.linesToVoxels(lines, prepixel)
vol[height] = prepixel
vol, bounding_box = padVoxelArray(vol)
# outputFilePattern, outputFileExtension = os.path.splitext(outputFilePath)
return vol
def doExport(inputFilePath, outputFilePath, resolution, pad):
mesh = stl_reader.read_stl_verticies(inputFilePath)
(scale, shift, bounding_box) = slice.calculateScaleAndShift(mesh, resolution)
if not any(scale):
print('Too small resolution: %d' % resolution)
return
mesh = slice.scaleAndShiftMesh(mesh, scale, shift)
vol, bounding_box = slice.meshToPlane(mesh, bounding_box, pad)
outputFilePattern, outputFileExtension = os.path.splitext(outputFilePath)
if outputFileExtension == '.png':
exportPngs(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.xyz':
exportXyz(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.svx':
exportSvx(vol, bounding_box, outputFilePath, scale, shift)
def voxelsFromStl(inputFilePath, resolution):
mesh = list(stl_reader.read_stl_verticies(inputFilePath))
(scale, shift,
bounding_box) = slice.calculateScaleAndShift(mesh, resolution)
mesh = list(slice.scaleAndShiftMesh(mesh, scale, shift))
#Note: vol should be addressed with vol[z][x][y]
vol = np.zeros((bounding_box[2], bounding_box[0], bounding_box[1]),
dtype=bool)
for height in range(bounding_box[2]):
# print('Processing layer %d/%d'%(height+1,bounding_box[2]))
lines = slice.toIntersectingLines(mesh, height)
prepixel = np.zeros((bounding_box[0], bounding_box[1]), dtype=bool)
perimeter.linesToVoxels(lines, prepixel)
vol[height] = prepixel
vol, bounding_box = padVoxelArray(vol)
# outputFilePattern, outputFileExtension = os.path.splitext(outputFilePath)
return vol
def doExport(inputFilePath, outputFilePath, resolution, size):
mesh = list(stl_reader.read_stl_verticies(inputFilePath))
scale, shift, bounding_box = slice.calculateScaleAndShift(mesh, resolution)
if size:
size = np.array(size)
# Here, bounding box is still (x,y,z)
for i, d in enumerate(['x', 'y', 'z']):
if size[i] < bounding_box[i]:
raise ValueError("Supplied size for Dimension {} ({}) is less than computed bounding box ({})!".format(d, size[i], bounding_box[i]))
print("Overwriting computed size {} with new size {}".format(bounding_box, size), file=sys.stderr)
# Need to adjust the scale in order to center the image in the frame
offset = (size - bounding_box) / 2
# apply scaling
offset /= scale
# Add to shift
shift += offset
# set new bounding box
bounding_box = size
mesh = list(slice.scaleAndShiftMesh(mesh, scale, shift))
#Note: vol should be addressed with vol[z][x][y]
vol = np.empty((bounding_box[2], bounding_box[0], bounding_box[1]), dtype=bool)
for height in tqdm.tqdm(range(bounding_box[2]), desc='Processing Slice'):
lines = slice.toIntersectingLines(mesh, height)
prepixel = np.zeros((bounding_box[0], bounding_box[1]), dtype=bool)
perimeter.linesToVoxels(lines, prepixel)
vol[height] = prepixel
if not size:
# Adds two extra voxels
# Only needed if bbox is not given explicitly
vol, bounding_box = padVoxelArray(vol)
_, outputFileExtension = os.path.splitext(outputFilePath)
if outputFileExtension == '.png':
exportPngs(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.xyz':
exportXyz(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.svx':
exportSvx(vol, bounding_box, outputFilePath, scale, shift)
elif outputFileExtension == '.mhd':
exportMhd(vol, bounding_box, outputFilePath, scale)
def doExport(inputFilePath, outputFilePath, resolution):
mesh = list(stl_reader.read_stl_verticies(inputFilePath))
(scale, shift,
bounding_box) = slice.calculateScaleAndShift(mesh, resolution)
mesh = list(slice.scaleAndShiftMesh(mesh, scale, shift))
# Note: vol should be addressed with vol[z][x][y]
vol = np.zeros((bounding_box[2], bounding_box[0], bounding_box[1]),
dtype=bool)
events = slice.generateEvents(mesh)
current_triangle_indecies = set()
slice_height = -1
for (z, status, tri_ind) in events:
while z - slice_height >= 1:
slice_height += 1
print('Processing layer %d/%d' %
(slice_height + 1, bounding_box[2]))
prepixel = np.zeros((bounding_box[0], bounding_box[1]), dtype=bool)
mesh_subset = []
for index in current_triangle_indecies:
mesh_subset.append(mesh[index])
lines = slice.toIntersectingLines(mesh_subset, slice_height)
perimeter.linesToVoxels(lines, prepixel)
vol[slice_height] = prepixel
if status == 'start':
assert tri_ind not in current_triangle_indecies
current_triangle_indecies.add(tri_ind)
elif status == 'end':
assert tri_ind in current_triangle_indecies
current_triangle_indecies.remove(tri_ind)
vol, bounding_box = padVoxelArray(vol)
outputFilePattern, outputFileExtension = os.path.splitext(outputFilePath)
if outputFileExtension == '.png':
exportPngs(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.xyz':
exportXyz(vol, bounding_box, outputFilePath)
elif outputFileExtension == '.svx':
exportSvx(vol, bounding_box, outputFilePath, scale, shift)
def get_voxels(triangles, resolution):
"""
Converts an .stl file into voxels
:param triangles: Mesh of the object
:param resolution: Resolution of the voxel cube
:return: scale, shift, volume and bounding box of the voxel cube
"""
mesh = triangles.data['vectors'].tolist()
(scale, shift,
bounding_box) = slice.calculateScaleAndShift(mesh, resolution)
mesh = list(slice.scaleAndShiftMesh(mesh, scale, shift))
# Note: vol should be addressed with vol[z][x][y]
vol = np.zeros((bounding_box[2], bounding_box[0], bounding_box[1]),
dtype=bool)
for height in range(bounding_box[2]):
# print('Processing layer %d/%d' % (height + 1, bounding_box[2]))
lines = slice.toIntersectingLines(mesh, height)
prepixel = np.zeros((bounding_box[0], bounding_box[1]), dtype=bool)
perimeter.linesToVoxels(lines, prepixel)
vol[height] = prepixel
vol, bounding_box = padVoxelArray(vol)
return scale, shift, vol, bounding_box