dgobbi

//
// A simple example of image streaming, using a reader that can stream
// from a file and a writer than can stream to a file.
//
// Currently, the only image writer in VTK that streams from its input
// is the vtkMINCImageWriter.
//
// Please send any comments to david.gobbi@gmail.com
//

dgobbi

#include <stdio.h>
#include <stdlib.h>

// This is a program for converting a binary image (little-endian)
// into a set of integers that indicate the position where the bit
// value changes.  It is much faster than going through bit-by-bit.

int main(int argc, char *argv[])
{
  static const int debruijn[32] =

dgobbi

!!ARBfp1.0

# This is a short fragment program for bicubic texture interpolation.
# It takes one parameter, a vector that gives the texture size as
# (xsize, ysize, 1.0/xsize, 1.0/ysize). The cubic interpolation weights
# are computed by the shader, so it is not necessary to supply an
# interpolation kernel texture.


# width, height, xspacing, yspacing

dgobbi

"""
This is a simple class that can catch errors from VTK objects.
"""

import vtk

class ErrorObserver:

   def __init__(self):
       self.__ErrorOccurred = False

dgobbi

// Clip a line segment defined by endpoints at p1[3], p2[3] by a
// collection of n planes defined by the equation ax+by+cz+d=0.
// The parametric coordinates t1,t2 of new endpoints are returned,
// as well as the indices i1,i2 of the entry and exit planes for the line.
// Result values of -1 for i1 or i2 signify that the line was not clipped
// at the p1 end or the p2 end respectively.  The function return value
// will be 0 if the whole line segment lies outside, or 1 if the line
// segment lies fully or partially inside the planes.

int clipLineWithPlanes(const double p1[3], const double p2[3],

dgobbi

#! /usr/bin/env python
"""
Usage: python bracefix.py [--test] <file1> [<file2> ...]

This script takes old-style "Whitesmiths" indented VTK source files as
input, and re-indents the braces according to the new VTK style.
Only the brace indentation is modified.

If called with the --test option, then it will print an error message
for each file that it would modify, but it will not actually modify the

dgobbi

import numpy as np

def ellipsoid(radii, dtype='d'):
    """Generate an ellipsoid with the specified radii.

    The ellipsoid will be centered in the output, which will always
    have odd dimensions.  The surface of the sphere will be antialiased,
    that is, a linear ramp is applied at the surface instead of a hard
    edge.  The size of the ramp is exactly one sample spacing, i.e. points
    right on the surface will have a value of 0.5 while points that are

dgobbi

import numpy

Kb = 0.114
Kr = 0.299

full = numpy.array([
  [1.0, 0.0, 2.0*(1.0-Kr) ],
  [1.0, -2.0*Kb*(1.0-Kb)/(1.0-Kr-Kb), -2.0*Kr*(1.0-Kr)/(1.0-Kr-Kb) ],
  [1.0, 2.0*(1.0-Kb), 0.0 ]
])

dgobbi

"""
Program nifti_readwrite.py
Sep 16, 2019
David Gobbi
"""

import sys
import argparse
import nibabel as nib

dgobbi

#! /usr/bin/env python

"""
This program reads the output from "dicomdump" and converts it to json.

The latest version of this code can be found at gist.github.com/dgobbi

Note that this code is incomplete, incorrect, and may destroy your data.
It comes with absolutely no warranties. Use at your own risk.
"""