Continuous3DFunction¶
- class openmm.openmm.Continuous3DFunction(*args)¶
This is a TabulatedFunction that computes a continuous three dimensional function.
- __init__(self, xsize, ysize, zsize, values, xmin, xmax, ymin, ymax, zmin, zmax, periodic=False) → Continuous3DFunction¶
- __init__(self, other) → Continuous3DFunction
Create a Continuous3DFunction f(x,y,z) based on a set of tabulated values.
- Parameters
values (int) – the tabulated values of the function f(x,y,z) at xsize uniformly spaced values of x between xmin and xmax, ysize values of y between ymin and ymax, and zsize values of z between zmin and zmax. A natural cubic spline is used to interpolate between the tabulated values. The function is assumed to be zero when x, y, or z is outside its specified range. The values should be ordered so that values[i+xsize*j+xsize*ysize*k] = f(x_i,y_j,z_k), where x_i is the i’th uniformly spaced value of x. This must be of length xsize*ysize*zsize.
xsize (int) – the number of table elements along the x direction
ysize (vector< double >) – the number of table elements along the y direction
ysize – the number of table elements along the z direction
xmin (double) – the value of x corresponding to the first element of values
xmax (double) – the value of x corresponding to the last element of values
ymin (double) – the value of y corresponding to the first element of values
ymax (double) – the value of y corresponding to the last element of values
zmin (double) – the value of z corresponding to the first element of values
zmax (double) – the value of z corresponding to the last element of values
periodic (bool) – whether the interpolated function is periodic
Methods
Copy
(self)Create a deep copy of the tabulated function
__init__
(-> Continuous3DFunction)Create a Continuous3DFunction f(x,y,z) based on a set of tabulated values.
getFunctionParameters
(self)Get the parameters for the tabulated function.
getPeriodic
(self)Get the periodicity status of the tabulated function.
getUpdateCount
(self)Get the value of a counter that is updated every time setFunctionParameters() is called.
setFunctionParameters
(self, xsize, ysize, …)Set the parameters for the tabulated function.
Attributes
The membership flag
- property thisown¶
The membership flag
- getFunctionParameters(self)¶
Get the parameters for the tabulated function.
- Returns
values (int) – the tabulated values of the function f(x,y,z) at xsize uniformly spaced values of x between xmin and xmax, ysize values of y between ymin and ymax, and zsize values of z between zmin and zmax. A natural cubic spline is used to interpolate between the tabulated values. The function is assumed to be zero when x, y, or z is outside its specified range. The values should be ordered so that values[i+xsize*j+xsize*ysize*k] = f(x_i,y_j,z_k), where x_i is the i’th uniformly spaced value of x. This must be of length xsize*ysize*zsize.
xsize (int) – the number of table elements along the x direction
ysize (int) – the number of table elements along the y direction
zsize (vector< double >) – the number of table elements along the z direction
xmin (double) – the value of x corresponding to the first element of values
xmax (double) – the value of x corresponding to the last element of values
ymin (double) – the value of y corresponding to the first element of values
ymax (double) – the value of y corresponding to the last element of values
zmin (double) – the value of z corresponding to the first element of values
zmax (double) – the value of z corresponding to the last element of values
- setFunctionParameters(self, xsize, ysize, zsize, values, xmin, xmax, ymin, ymax, zmin, zmax)¶
Set the parameters for the tabulated function.
- Parameters
values (int) – the tabulated values of the function f(x,y,z) at xsize uniformly spaced values of x between xmin and xmax, ysize values of y between ymin and ymax, and zsize values of z between zmin and zmax. A natural cubic spline is used to interpolate between the tabulated values. The function is assumed to be zero when x, y, or z is outside its specified range. The values should be ordered so that values[i+xsize*j+xsize*ysize*k] = f(x_i,y_j,z_k), where x_i is the i’th uniformly spaced value of x. This must be of length xsize*ysize*zsize.
xsize (int) – the number of table elements along the x direction
ysize (int) – the number of table elements along the y direction
zsize (vector< double >) – the number of table elements along the z direction
xmin (double) – the value of x corresponding to the first element of values
xmax (double) – the value of x corresponding to the last element of values
ymin (double) – the value of y corresponding to the first element of values
ymax (double) – the value of y corresponding to the last element of values
zmin (double) – the value of z corresponding to the first element of values
zmax (double) – the value of z corresponding to the last element of values
- Copy(self) → Continuous3DFunction¶
Create a deep copy of the tabulated function
Deprecated
This will be removed in a future release.
- __eq__(self, other) → bool¶
- __ne__(self, other) → bool¶
- getPeriodic(self) → bool¶
Get the periodicity status of the tabulated function.
- getUpdateCount(self) → int¶
Get the value of a counter that is updated every time setFunctionParameters() is called. This provides a fast way to detect when a function has changed.