[Yt-svn] yt-commit r774 - trunk/yt/lagos
mturk at wrangler.dreamhost.com
mturk at wrangler.dreamhost.com
Sun Sep 14 14:16:37 PDT 2008
Author: mturk
Date: Sun Sep 14 14:16:35 2008
New Revision: 774
URL: http://yt.spacepope.org/changeset/774
Log:
Converted interpolators into Cython code. Note that we depend on the .c file,
not on the .pyx file, so that we do not require Cython for installation. This
passes the unit tests.
Added:
trunk/yt/lagos/Interpolators.c
trunk/yt/lagos/Interpolators.pyx
Modified:
trunk/yt/lagos/HelperFunctions.py
trunk/yt/lagos/setup.py
Modified: trunk/yt/lagos/HelperFunctions.py
==============================================================================
--- trunk/yt/lagos/HelperFunctions.py (original)
+++ trunk/yt/lagos/HelperFunctions.py Sun Sep 14 14:16:35 2008
@@ -25,18 +25,18 @@
"""
from yt.lagos import *
-#import Interpolators as IT
+import Interpolators as IT
class UnilinearFieldInterpolator:
def __init__(self, table, boundaries, field_names):
- self.table = table
+ self.table = table.astype('float64')
x0, x1 = boundaries
self.x_name = field_names
- self.x_bins = na.linspace(x0, x1, table.shape[0])
+ self.x_bins = na.linspace(x0, x1, table.shape[0]).astype('float64')
def __call__(self, data_object):
orig_shape = data_object[self.x_name].shape
- x_vals = data_object[self.x_name].ravel()
+ x_vals = data_object[self.x_name].ravel().astype('float64')
x_i = na.digitize(x_vals, self.x_bins) - 1
if na.any((x_i == -1) | (x_i == len(self.x_bins)-1)):
@@ -45,25 +45,23 @@
mylog.error("Error was in: %s", data_object)
raise ValueError
- x = (x_vals - self.x_bins[x_i]) / (self.x_bins[x_i+1] - self.x_bins[x_i])
- xm = (self.x_bins[x_i+1] - x_vals) / (self.x_bins[x_i+1] - self.x_bins[x_i])
- my_vals = self.table[x_i ] * (xm)
- my_vals += self.table[x_i+1] * (x )
- return my_vals.reshape(orig_shape)
+ my_vals = na.zeros(x_vals.shape, dtype='float64')
+ IT.UnilinearlyInterpolate(self.table, x_vals, self.x_bins, x_i, my_vals)
+ return my_vals
class BilinearFieldInterpolator:
def __init__(self, table, boundaries, field_names, truncate=False):
- self.table = table
+ self.table = table.astype('float64')
self.truncate = truncate
x0, x1, y0, y1 = boundaries
self.x_name, self.y_name = field_names
- self.x_bins = na.linspace(x0, x1, table.shape[0])
- self.y_bins = na.linspace(y0, y1, table.shape[1])
+ self.x_bins = na.linspace(x0, x1, table.shape[0]).astype('float64')
+ self.y_bins = na.linspace(y0, y1, table.shape[1]).astype('float64')
def __call__(self, data_object):
orig_shape = data_object[self.x_name].shape
- x_vals = data_object[self.x_name].ravel()
- y_vals = data_object[self.y_name].ravel()
+ x_vals = data_object[self.x_name].ravel().astype('float64')
+ y_vals = data_object[self.y_name].ravel().astype('float64')
x_i = na.digitize(x_vals, self.x_bins) - 1
y_i = na.digitize(y_vals, self.y_bins) - 1
@@ -78,37 +76,27 @@
x_i = na.minimum(na.maximum(x_i,0), len(self.x_bins)-2)
y_i = na.minimum(na.maximum(y_i,0), len(self.y_bins)-2)
- #my_vals = na.zeros(x_vals.shape, dtype='float')
- #IT.BilinearlyInterpolate(self.table,
- # x_vals, y_vals, self.x_bins, self.y_bins,
- # x_i, y_i, my_vals)
- #return my_vals
-
- x = (x_vals - self.x_bins[x_i]) / (self.x_bins[x_i+1] - self.x_bins[x_i])
- y = (y_vals - self.y_bins[y_i]) / (self.y_bins[y_i+1] - self.y_bins[y_i])
- xm = (self.x_bins[x_i+1] - x_vals) / (self.x_bins[x_i+1] - self.x_bins[x_i])
- ym = (self.y_bins[y_i+1] - y_vals) / (self.y_bins[y_i+1] - self.y_bins[y_i])
- my_vals = self.table[x_i ,y_i ] * (xm*ym)
- my_vals += self.table[x_i+1,y_i ] * (x *ym)
- my_vals += self.table[x_i ,y_i+1] * (xm*y )
- my_vals += self.table[x_i+1,y_i+1] * (x *y )
+ my_vals = na.zeros(x_vals.shape, dtype='float64')
+ IT.BilinearlyInterpolate(self.table,
+ x_vals, y_vals, self.x_bins, self.y_bins,
+ x_i, y_i, my_vals)
return my_vals.reshape(orig_shape)
class TrilinearFieldInterpolator:
def __init__(self, table, boundaries, field_names, truncate = False):
- self.table = table
+ self.table = table.astype('float64')
self.truncate = truncate
x0, x1, y0, y1, z0, z1 = boundaries
self.x_name, self.y_name, self.z_name = field_names
- self.x_bins = na.linspace(x0, x1, table.shape[0])
- self.y_bins = na.linspace(y0, y1, table.shape[1])
- self.z_bins = na.linspace(z0, z1, table.shape[2])
+ self.x_bins = na.linspace(x0, x1, table.shape[0]).astype('float64')
+ self.y_bins = na.linspace(y0, y1, table.shape[1]).astype('float64')
+ self.z_bins = na.linspace(z0, z1, table.shape[2]).astype('float64')
def __call__(self, data_object):
orig_shape = data_object[self.x_name].shape
- x_vals = data_object[self.x_name].ravel()
- y_vals = data_object[self.y_name].ravel()
- z_vals = data_object[self.z_name].ravel()
+ x_vals = data_object[self.x_name].ravel().astype('float64')
+ y_vals = data_object[self.y_name].ravel().astype('float64')
+ z_vals = data_object[self.z_name].ravel().astype('float64')
x_i = na.digitize(x_vals, self.x_bins) - 1
y_i = na.digitize(y_vals, self.y_bins) - 1
@@ -126,13 +114,12 @@
y_i = na.minimum(na.maximum(y_i,0), len(self.y_bins)-2)
z_i = na.minimum(na.maximum(z_i,0), len(self.z_bins)-2)
- #my_vals = na.zeros(x_vals.shape, dtype='float')
- #print self.table.dtype, x_vals.dtype, self.x_bins.dtype
- #IT.TrilinearlyInterpolate(self.table,
- # x_vals, y_vals, z_vals,
- # self.x_bins, self.y_bins, self.z_bins,
- # x_i, y_i, z_i, my_vals)
- #return my_vals
+ my_vals = na.zeros(x_vals.shape, dtype='float64')
+ IT.TrilinearlyInterpolate(self.table,
+ x_vals, y_vals, z_vals,
+ self.x_bins, self.y_bins, self.z_bins,
+ x_i, y_i, z_i, my_vals)
+ return my_vals.reshape(orig_shape)
# Use notation from Paul Bourke's page on interpolation
# http://local.wasp.uwa.edu.au/~pbourke/other/interpolation/
Added: trunk/yt/lagos/Interpolators.c
==============================================================================
--- (empty file)
+++ trunk/yt/lagos/Interpolators.c Sun Sep 14 14:16:35 2008
@@ -0,0 +1,2635 @@
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+/* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":6
+ *
+ * @cython.boundscheck(False)
+ * def UnilinearlyInterpolate(np.ndarray[np.float64_t, ndim=1] table, # <<<<<<<<<<<<<<
+ * np.ndarray[np.float64_t, ndim=1] x_vals,
+ * np.ndarray[np.float64_t, ndim=1] x_bins,
+ */
+
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+ __pyx_bstride_0_x_vals = __pyx_bstruct_x_vals.strides[0];
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+ if (unlikely(__Pyx_GetBuffer_nn___pyx_t_5numpy_float64_t((PyObject*)__pyx_v_y_vals, &__pyx_bstruct_y_vals, PyBUF_FORMAT| PyBUF_STRIDES, 1) == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 22; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+ __pyx_bstride_0_y_vals = __pyx_bstruct_y_vals.strides[0];
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+ __pyx_bstride_0_x_bins = __pyx_bstruct_x_bins.strides[0];
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+ __pyx_bstride_0_y_bins = __pyx_bstruct_y_bins.strides[0];
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+ __pyx_bshape_0_y_is = __pyx_bstruct_y_is.shape[0];
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+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":33
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+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":34
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+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":35
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+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":37
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+ * output[i] = table[x_i , y_i ] * (xm*ym) \ # <<<<<<<<<<<<<<
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+}
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+/* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":48
+ *
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+ * np.ndarray[np.float64_t, ndim=1] y_vals,
+ */
+
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+ PyArrayObject *__pyx_v_z_vals = 0;
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+ PyArrayObject *__pyx_v_y_bins = 0;
+ PyArrayObject *__pyx_v_z_bins = 0;
+ PyArrayObject *__pyx_v_x_is = 0;
+ PyArrayObject *__pyx_v_y_is = 0;
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+ PyArrayObject *__pyx_v_output = 0;
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+ double __pyx_v_xm;
+ double __pyx_v_y;
+ double __pyx_v_yp;
+ double __pyx_v_ym;
+ double __pyx_v_z;
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+ Py_ssize_t __pyx_bshape_0_output = 0;
+ Py_buffer __pyx_bstruct_table;
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+ Py_ssize_t __pyx_bshape_2_table = 0;
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+ Py_ssize_t __pyx_bshape_0_x_bins = 0;
+ Py_buffer __pyx_bstruct_y_vals;
+ Py_ssize_t __pyx_bstride_0_y_vals = 0;
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+ Py_ssize_t __pyx_bshape_0_z_vals = 0;
+ PyObject *__pyx_r;
+ npy_intp __pyx_1;
+ __pyx_t_5numpy_int_t __pyx_2;
+ __pyx_t_5numpy_float64_t __pyx_3;
+ __pyx_t_5numpy_float64_t __pyx_4;
+ __pyx_t_5numpy_float64_t __pyx_5;
+ __pyx_t_5numpy_float64_t __pyx_6;
+ __pyx_t_5numpy_float64_t __pyx_7;
+ __pyx_t_5numpy_float64_t __pyx_8;
+ __pyx_t_5numpy_float64_t __pyx_9;
+ __pyx_t_5numpy_float64_t __pyx_10;
+ int __pyx_t_1;
+ int __pyx_t_2;
+ int __pyx_t_3;
+ int __pyx_t_4;
+ int __pyx_t_5;
+ int __pyx_t_6;
+ int __pyx_t_7;
+ long __pyx_t_8;
+ int __pyx_t_9;
+ int __pyx_t_10;
+ long __pyx_t_11;
+ int __pyx_t_12;
+ int __pyx_t_13;
+ long __pyx_t_14;
+ int __pyx_t_15;
+ long __pyx_t_16;
+ long __pyx_t_17;
+ int __pyx_t_18;
+ long __pyx_t_19;
+ long __pyx_t_20;
+ int __pyx_t_21;
+ long __pyx_t_22;
+ long __pyx_t_23;
+ int __pyx_t_24;
+ int __pyx_t_25;
+ int __pyx_t_26;
+ int __pyx_t_27;
+ long __pyx_t_28;
+ int __pyx_t_29;
+ int __pyx_t_30;
+ int __pyx_t_31;
+ long __pyx_t_32;
+ int __pyx_t_33;
+ int __pyx_t_34;
+ int __pyx_t_35;
+ long __pyx_t_36;
+ long __pyx_t_37;
+ int __pyx_t_38;
+ long __pyx_t_39;
+ int __pyx_t_40;
+ long __pyx_t_41;
+ long __pyx_t_42;
+ long __pyx_t_43;
+ long __pyx_t_44;
+ int __pyx_t_45;
+ long __pyx_t_46;
+ long __pyx_t_47;
+ long __pyx_t_48;
+ int __pyx_t_49;
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+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":65
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+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":66
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+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":68
+ * z_i = z_is[i]
+ * x = x_vals[i]
+ * y = y_vals[i] # <<<<<<<<<<<<<<
+ * z = z_vals[i]
+ * xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i])
+ */
+ __pyx_t_5 = __pyx_v_i;
+ if (__pyx_t_5 < 0) __pyx_t_5 += __pyx_bshape_0_y_vals;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_y_vals.buf, __pyx_t_5, __pyx_bstride_0_y_vals)));
+ __pyx_v_y = __pyx_3;
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":69
+ * x = x_vals[i]
+ * y = y_vals[i]
+ * z = z_vals[i] # <<<<<<<<<<<<<<
+ * xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i])
+ * yp = (y - y_bins[y_i]) / (y_bins[y_i+1] - y_bins[y_i])
+ */
+ __pyx_t_6 = __pyx_v_i;
+ if (__pyx_t_6 < 0) __pyx_t_6 += __pyx_bshape_0_z_vals;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_z_vals.buf, __pyx_t_6, __pyx_bstride_0_z_vals)));
+ __pyx_v_z = __pyx_3;
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":70
+ * y = y_vals[i]
+ * z = z_vals[i]
+ * xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i]) # <<<<<<<<<<<<<<
+ * yp = (y - y_bins[y_i]) / (y_bins[y_i+1] - y_bins[y_i])
+ * zp = (z - z_bins[z_i]) / (z_bins[z_i+1] - z_bins[z_i])
+ */
+ __pyx_t_7 = __pyx_v_x_i;
+ if (__pyx_t_7 < 0) __pyx_t_7 += __pyx_bshape_0_x_bins;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_x_bins.buf, __pyx_t_7, __pyx_bstride_0_x_bins)));
+ __pyx_t_8 = (__pyx_v_x_i + 1);
+ if (__pyx_t_8 < 0) __pyx_t_8 += __pyx_bshape_0_x_bins;
+ __pyx_4 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_x_bins.buf, __pyx_t_8, __pyx_bstride_0_x_bins)));
+ __pyx_t_9 = __pyx_v_x_i;
+ if (__pyx_t_9 < 0) __pyx_t_9 += __pyx_bshape_0_x_bins;
+ __pyx_5 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_x_bins.buf, __pyx_t_9, __pyx_bstride_0_x_bins)));
+ __pyx_v_xp = ((__pyx_v_x - __pyx_3) / (__pyx_4 - __pyx_5));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":71
+ * z = z_vals[i]
+ * xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i])
+ * yp = (y - y_bins[y_i]) / (y_bins[y_i+1] - y_bins[y_i]) # <<<<<<<<<<<<<<
+ * zp = (z - z_bins[z_i]) / (z_bins[z_i+1] - z_bins[z_i])
+ * xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i])
+ */
+ __pyx_t_10 = __pyx_v_y_i;
+ if (__pyx_t_10 < 0) __pyx_t_10 += __pyx_bshape_0_y_bins;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_y_bins.buf, __pyx_t_10, __pyx_bstride_0_y_bins)));
+ __pyx_t_11 = (__pyx_v_y_i + 1);
+ if (__pyx_t_11 < 0) __pyx_t_11 += __pyx_bshape_0_y_bins;
+ __pyx_4 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_y_bins.buf, __pyx_t_11, __pyx_bstride_0_y_bins)));
+ __pyx_t_12 = __pyx_v_y_i;
+ if (__pyx_t_12 < 0) __pyx_t_12 += __pyx_bshape_0_y_bins;
+ __pyx_5 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_y_bins.buf, __pyx_t_12, __pyx_bstride_0_y_bins)));
+ __pyx_v_yp = ((__pyx_v_y - __pyx_3) / (__pyx_4 - __pyx_5));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":72
+ * xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i])
+ * yp = (y - y_bins[y_i]) / (y_bins[y_i+1] - y_bins[y_i])
+ * zp = (z - z_bins[z_i]) / (z_bins[z_i+1] - z_bins[z_i]) # <<<<<<<<<<<<<<
+ * xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i])
+ * ym = (y_bins[y_i+1] - y) / (y_bins[y_i+1] - y_bins[y_i])
+ */
+ __pyx_t_13 = __pyx_v_z_i;
+ if (__pyx_t_13 < 0) __pyx_t_13 += __pyx_bshape_0_z_bins;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_z_bins.buf, __pyx_t_13, __pyx_bstride_0_z_bins)));
+ __pyx_t_14 = (__pyx_v_z_i + 1);
+ if (__pyx_t_14 < 0) __pyx_t_14 += __pyx_bshape_0_z_bins;
+ __pyx_4 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_z_bins.buf, __pyx_t_14, __pyx_bstride_0_z_bins)));
+ __pyx_t_15 = __pyx_v_z_i;
+ if (__pyx_t_15 < 0) __pyx_t_15 += __pyx_bshape_0_z_bins;
+ __pyx_5 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_z_bins.buf, __pyx_t_15, __pyx_bstride_0_z_bins)));
+ __pyx_v_zp = ((__pyx_v_z - __pyx_3) / (__pyx_4 - __pyx_5));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":73
+ * yp = (y - y_bins[y_i]) / (y_bins[y_i+1] - y_bins[y_i])
+ * zp = (z - z_bins[z_i]) / (z_bins[z_i+1] - z_bins[z_i])
+ * xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i]) # <<<<<<<<<<<<<<
+ * ym = (y_bins[y_i+1] - y) / (y_bins[y_i+1] - y_bins[y_i])
+ * zm = (z_bins[z_i+1] - z) / (z_bins[z_i+1] - z_bins[z_i])
+ */
+ __pyx_t_16 = (__pyx_v_x_i + 1);
+ if (__pyx_t_16 < 0) __pyx_t_16 += __pyx_bshape_0_x_bins;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_x_bins.buf, __pyx_t_16, __pyx_bstride_0_x_bins)));
+ __pyx_t_17 = (__pyx_v_x_i + 1);
+ if (__pyx_t_17 < 0) __pyx_t_17 += __pyx_bshape_0_x_bins;
+ __pyx_4 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_x_bins.buf, __pyx_t_17, __pyx_bstride_0_x_bins)));
+ __pyx_t_18 = __pyx_v_x_i;
+ if (__pyx_t_18 < 0) __pyx_t_18 += __pyx_bshape_0_x_bins;
+ __pyx_5 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_x_bins.buf, __pyx_t_18, __pyx_bstride_0_x_bins)));
+ __pyx_v_xm = ((__pyx_3 - __pyx_v_x) / (__pyx_4 - __pyx_5));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":74
+ * zp = (z - z_bins[z_i]) / (z_bins[z_i+1] - z_bins[z_i])
+ * xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i])
+ * ym = (y_bins[y_i+1] - y) / (y_bins[y_i+1] - y_bins[y_i]) # <<<<<<<<<<<<<<
+ * zm = (z_bins[z_i+1] - z) / (z_bins[z_i+1] - z_bins[z_i])
+ * output[i] = table[x_i ,y_i ,z_i ] * (xm*ym*zm) \
+ */
+ __pyx_t_19 = (__pyx_v_y_i + 1);
+ if (__pyx_t_19 < 0) __pyx_t_19 += __pyx_bshape_0_y_bins;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_y_bins.buf, __pyx_t_19, __pyx_bstride_0_y_bins)));
+ __pyx_t_20 = (__pyx_v_y_i + 1);
+ if (__pyx_t_20 < 0) __pyx_t_20 += __pyx_bshape_0_y_bins;
+ __pyx_4 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_y_bins.buf, __pyx_t_20, __pyx_bstride_0_y_bins)));
+ __pyx_t_21 = __pyx_v_y_i;
+ if (__pyx_t_21 < 0) __pyx_t_21 += __pyx_bshape_0_y_bins;
+ __pyx_5 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_y_bins.buf, __pyx_t_21, __pyx_bstride_0_y_bins)));
+ __pyx_v_ym = ((__pyx_3 - __pyx_v_y) / (__pyx_4 - __pyx_5));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":75
+ * xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i])
+ * ym = (y_bins[y_i+1] - y) / (y_bins[y_i+1] - y_bins[y_i])
+ * zm = (z_bins[z_i+1] - z) / (z_bins[z_i+1] - z_bins[z_i]) # <<<<<<<<<<<<<<
+ * output[i] = table[x_i ,y_i ,z_i ] * (xm*ym*zm) \
+ * + table[x_i+1,y_i ,z_i ] * (xp*ym*zm) \
+ */
+ __pyx_t_22 = (__pyx_v_z_i + 1);
+ if (__pyx_t_22 < 0) __pyx_t_22 += __pyx_bshape_0_z_bins;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_z_bins.buf, __pyx_t_22, __pyx_bstride_0_z_bins)));
+ __pyx_t_23 = (__pyx_v_z_i + 1);
+ if (__pyx_t_23 < 0) __pyx_t_23 += __pyx_bshape_0_z_bins;
+ __pyx_4 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_z_bins.buf, __pyx_t_23, __pyx_bstride_0_z_bins)));
+ __pyx_t_24 = __pyx_v_z_i;
+ if (__pyx_t_24 < 0) __pyx_t_24 += __pyx_bshape_0_z_bins;
+ __pyx_5 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided1d(__pyx_bstruct_z_bins.buf, __pyx_t_24, __pyx_bstride_0_z_bins)));
+ __pyx_v_zm = ((__pyx_3 - __pyx_v_z) / (__pyx_4 - __pyx_5));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":76
+ * ym = (y_bins[y_i+1] - y) / (y_bins[y_i+1] - y_bins[y_i])
+ * zm = (z_bins[z_i+1] - z) / (z_bins[z_i+1] - z_bins[z_i])
+ * output[i] = table[x_i ,y_i ,z_i ] * (xm*ym*zm) \ # <<<<<<<<<<<<<<
+ * + table[x_i+1,y_i ,z_i ] * (xp*ym*zm) \
+ * + table[x_i ,y_i+1,z_i ] * (xm*yp*zm) \
+ */
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+ __pyx_t_26 = __pyx_v_y_i;
+ __pyx_t_27 = __pyx_v_z_i;
+ if (__pyx_t_25 < 0) __pyx_t_25 += __pyx_bshape_0_table;
+ if (__pyx_t_26 < 0) __pyx_t_26 += __pyx_bshape_1_table;
+ if (__pyx_t_27 < 0) __pyx_t_27 += __pyx_bshape_2_table;
+ __pyx_3 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided3d(__pyx_bstruct_table.buf, __pyx_t_25, __pyx_bstride_0_table, __pyx_t_26, __pyx_bstride_1_table, __pyx_t_27, __pyx_bstride_2_table)));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":77
+ * zm = (z_bins[z_i+1] - z) / (z_bins[z_i+1] - z_bins[z_i])
+ * output[i] = table[x_i ,y_i ,z_i ] * (xm*ym*zm) \
+ * + table[x_i+1,y_i ,z_i ] * (xp*ym*zm) \ # <<<<<<<<<<<<<<
+ * + table[x_i ,y_i+1,z_i ] * (xm*yp*zm) \
+ * + table[x_i ,y_i ,z_i+1] * (xm*ym*zp) \
+ */
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+ __pyx_t_29 = __pyx_v_y_i;
+ __pyx_t_30 = __pyx_v_z_i;
+ if (__pyx_t_28 < 0) __pyx_t_28 += __pyx_bshape_0_table;
+ if (__pyx_t_29 < 0) __pyx_t_29 += __pyx_bshape_1_table;
+ if (__pyx_t_30 < 0) __pyx_t_30 += __pyx_bshape_2_table;
+ __pyx_4 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided3d(__pyx_bstruct_table.buf, __pyx_t_28, __pyx_bstride_0_table, __pyx_t_29, __pyx_bstride_1_table, __pyx_t_30, __pyx_bstride_2_table)));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":78
+ * output[i] = table[x_i ,y_i ,z_i ] * (xm*ym*zm) \
+ * + table[x_i+1,y_i ,z_i ] * (xp*ym*zm) \
+ * + table[x_i ,y_i+1,z_i ] * (xm*yp*zm) \ # <<<<<<<<<<<<<<
+ * + table[x_i ,y_i ,z_i+1] * (xm*ym*zp) \
+ * + table[x_i+1,y_i ,z_i+1] * (xp*ym*zp) \
+ */
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+ __pyx_t_32 = (__pyx_v_y_i + 1);
+ __pyx_t_33 = __pyx_v_z_i;
+ if (__pyx_t_31 < 0) __pyx_t_31 += __pyx_bshape_0_table;
+ if (__pyx_t_32 < 0) __pyx_t_32 += __pyx_bshape_1_table;
+ if (__pyx_t_33 < 0) __pyx_t_33 += __pyx_bshape_2_table;
+ __pyx_5 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided3d(__pyx_bstruct_table.buf, __pyx_t_31, __pyx_bstride_0_table, __pyx_t_32, __pyx_bstride_1_table, __pyx_t_33, __pyx_bstride_2_table)));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":79
+ * + table[x_i+1,y_i ,z_i ] * (xp*ym*zm) \
+ * + table[x_i ,y_i+1,z_i ] * (xm*yp*zm) \
+ * + table[x_i ,y_i ,z_i+1] * (xm*ym*zp) \ # <<<<<<<<<<<<<<
+ * + table[x_i+1,y_i ,z_i+1] * (xp*ym*zp) \
+ * + table[x_i ,y_i+1,z_i+1] * (xm*yp*zp) \
+ */
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+ __pyx_t_35 = __pyx_v_y_i;
+ __pyx_t_36 = (__pyx_v_z_i + 1);
+ if (__pyx_t_34 < 0) __pyx_t_34 += __pyx_bshape_0_table;
+ if (__pyx_t_35 < 0) __pyx_t_35 += __pyx_bshape_1_table;
+ if (__pyx_t_36 < 0) __pyx_t_36 += __pyx_bshape_2_table;
+ __pyx_6 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided3d(__pyx_bstruct_table.buf, __pyx_t_34, __pyx_bstride_0_table, __pyx_t_35, __pyx_bstride_1_table, __pyx_t_36, __pyx_bstride_2_table)));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":80
+ * + table[x_i ,y_i+1,z_i ] * (xm*yp*zm) \
+ * + table[x_i ,y_i ,z_i+1] * (xm*ym*zp) \
+ * + table[x_i+1,y_i ,z_i+1] * (xp*ym*zp) \ # <<<<<<<<<<<<<<
+ * + table[x_i ,y_i+1,z_i+1] * (xm*yp*zp) \
+ * + table[x_i+1,y_i+1,z_i ] * (xp*yp*zm) \
+ */
+ __pyx_t_37 = (__pyx_v_x_i + 1);
+ __pyx_t_38 = __pyx_v_y_i;
+ __pyx_t_39 = (__pyx_v_z_i + 1);
+ if (__pyx_t_37 < 0) __pyx_t_37 += __pyx_bshape_0_table;
+ if (__pyx_t_38 < 0) __pyx_t_38 += __pyx_bshape_1_table;
+ if (__pyx_t_39 < 0) __pyx_t_39 += __pyx_bshape_2_table;
+ __pyx_7 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided3d(__pyx_bstruct_table.buf, __pyx_t_37, __pyx_bstride_0_table, __pyx_t_38, __pyx_bstride_1_table, __pyx_t_39, __pyx_bstride_2_table)));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":81
+ * + table[x_i ,y_i ,z_i+1] * (xm*ym*zp) \
+ * + table[x_i+1,y_i ,z_i+1] * (xp*ym*zp) \
+ * + table[x_i ,y_i+1,z_i+1] * (xm*yp*zp) \ # <<<<<<<<<<<<<<
+ * + table[x_i+1,y_i+1,z_i ] * (xp*yp*zm) \
+ * + table[x_i+1,y_i+1,z_i+1] * (xp*yp*zp)
+ */
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+ __pyx_t_41 = (__pyx_v_y_i + 1);
+ __pyx_t_42 = (__pyx_v_z_i + 1);
+ if (__pyx_t_40 < 0) __pyx_t_40 += __pyx_bshape_0_table;
+ if (__pyx_t_41 < 0) __pyx_t_41 += __pyx_bshape_1_table;
+ if (__pyx_t_42 < 0) __pyx_t_42 += __pyx_bshape_2_table;
+ __pyx_8 = *((__pyx_t_5numpy_float64_t *)((__pyx_t_5numpy_float64_t *)__Pyx_BufPtrStrided3d(__pyx_bstruct_table.buf, __pyx_t_40, __pyx_bstride_0_table, __pyx_t_41, __pyx_bstride_1_table, __pyx_t_42, __pyx_bstride_2_table)));
+
+ /* "/Users/matthewturk/Development/yt/trunk/yt/lagos/Interpolators.pyx":82
+ * + table[x_i+1,y_i ,z_i+1] * (xp*ym*zp) \
+ * + table[x_i ,y_i+1,z_i+1] * (xm*yp*zp) \
+ * + table[x_i+1,y_i+1,z_i ] * (xp*yp*zm) \ # <<<<<<<<<<<<<<
+ * + table[x_i+1,y_i+1,z_i+1] * (xp*yp*zp)
+ */
+ __pyx_t_43 = (__pyx_v_x_i + 1);
+ __pyx_t_44 = (__pyx_v_y_i + 1);
+ __pyx_t_45 = __pyx_v_z_i;
+ if (__pyx_t_43 < 0) __pyx_t_43 += __pyx_bshape_0_table;
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+}
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+ if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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+ * cimport cython
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+ if (PyObject_SetAttr(__pyx_m, __pyx_kp_np, __pyx_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
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+ /* "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/Cython-0.9.8.1.1-py2.5-macosx-10.3-fat.egg/Cython/Includes/numpy.pxd":36
+ * # experimental exception made for __getbuffer__ and __releasebuffer__
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+ * # requirements, and does not yet fullfill the PEP (specifically,
+ */
+ #if PY_MAJOR_VERSION < 3
+ return;
+ #else
+ return __pyx_m;
+ #endif
+ __pyx_L1_error:;
+ Py_XDECREF(__pyx_1);
+ __Pyx_AddTraceback("yt.lagos.Interpolators");
+ #if PY_MAJOR_VERSION >= 3
+ return NULL;
+ #endif
+}
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+};
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+}
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+static INLINE void __Pyx_SafeReleaseBuffer(PyObject* obj, Py_buffer* info) {
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+ __Pyx_ReleaseBuffer(obj, info);
+}
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+static INLINE void __Pyx_ZeroBuffer(Py_buffer* buf) {
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+ buf->strides = __Pyx_zeros;
+ buf->shape = __Pyx_zeros;
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+}
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+ while (1) {
+ switch (*ts) {
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+ case 13:
+ case ' ':
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+ default:
+ return ts;
+ }
+ }
+}
+
+static INLINE const char* __Pyx_BufferTypestringCheckEndian(const char* ts) {
+ int num = 1;
+ int little_endian = ((char*)&num)[0];
+ int ok = 1;
+ switch (*ts) {
+ case '@':
+ case '=':
+ ++ts; break;
+ case '<':
+ if (little_endian) ++ts;
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+ break;
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+}
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+}
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+ int ok;
+ if (*ts == '1') ++ts;
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+ case 'd': ok = (sizeof(__pyx_t_5numpy_float64_t) == sizeof(double) && (__pyx_t_5numpy_float64_t)-1 < 0); break;
+ case 'g': ok = (sizeof(__pyx_t_5numpy_float64_t) == sizeof(long double) && (__pyx_t_5numpy_float64_t)-1 < 0); break; default: ok = 0;
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+ return NULL;
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+}
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+ return 0;
+ }
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+ if (buf->ndim != nd) {
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+ goto fail;
+ }
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+ ts = __Pyx_BufferTypestringCheckEndian(ts);
+ if (!ts) goto fail;
+ ts = __Pyx_ConsumeWhitespace(ts);
+ ts = __Pyx_BufferTypestringCheck_item_nn___pyx_t_5numpy_float64_t(ts);
+ if (!ts) goto fail;
+ ts = __Pyx_ConsumeWhitespace(ts);
+ if (*ts != 0) {
+ PyErr_Format(PyExc_ValueError,
+ "Expected non-struct buffer data type (expected end, got '%s')", ts);
+ goto fail;
+ }
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+ return 0;
+fail:;
+ __Pyx_ZeroBuffer(buf);
+ return -1;
+}
+static const char* __Pyx_BufferTypestringCheck_item_nn___pyx_t_5numpy_int32_t(const char* ts) {
+ int ok;
+ if (*ts == '1') ++ts;
+ switch (*ts) {
+ case 'b': ok = (sizeof(__pyx_t_5numpy_int32_t) == sizeof(char) && (__pyx_t_5numpy_int32_t)-1 < 0); break;
+ case 'h': ok = (sizeof(__pyx_t_5numpy_int32_t) == sizeof(short) && (__pyx_t_5numpy_int32_t)-1 < 0); break;
+ case 'i': ok = (sizeof(__pyx_t_5numpy_int32_t) == sizeof(int) && (__pyx_t_5numpy_int32_t)-1 < 0); break;
+ case 'l': ok = (sizeof(__pyx_t_5numpy_int32_t) == sizeof(long) && (__pyx_t_5numpy_int32_t)-1 < 0); break;
+ case 'q': ok = (sizeof(__pyx_t_5numpy_int32_t) == sizeof(long long) && (__pyx_t_5numpy_int32_t)-1 < 0); break; default: ok = 0;
+ }
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+ return NULL;
+ } else return ts + 1;
+
+}
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+static int __Pyx_GetBuffer_nn___pyx_t_5numpy_int32_t(PyObject* obj, Py_buffer* buf, int flags, int nd) {
+ const char* ts;
+ if (obj == Py_None) {
+ __Pyx_ZeroBuffer(buf);
+ return 0;
+ }
+ buf->buf = NULL;
+ if (__Pyx_GetBuffer(obj, buf, flags) == -1) goto fail;
+ if (buf->ndim != nd) {
+ __Pyx_BufferNdimError(buf, nd);
+ goto fail;
+ }
+ ts = buf->format;
+ ts = __Pyx_ConsumeWhitespace(ts);
+ ts = __Pyx_BufferTypestringCheckEndian(ts);
+ if (!ts) goto fail;
+ ts = __Pyx_ConsumeWhitespace(ts);
+ ts = __Pyx_BufferTypestringCheck_item_nn___pyx_t_5numpy_int32_t(ts);
+ if (!ts) goto fail;
+ ts = __Pyx_ConsumeWhitespace(ts);
+ if (*ts != 0) {
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+ "Expected non-struct buffer data type (expected end, got '%s')", ts);
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+ __Pyx_ZeroBuffer(buf);
+ return -1;
+}
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+ int ok;
+ if (*ts == '1') ++ts;
+ switch (*ts) {
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+ case 'h': ok = (sizeof(__pyx_t_5numpy_int_t) == sizeof(short) && (__pyx_t_5numpy_int_t)-1 < 0); break;
+ case 'i': ok = (sizeof(__pyx_t_5numpy_int_t) == sizeof(int) && (__pyx_t_5numpy_int_t)-1 < 0); break;
+ case 'l': ok = (sizeof(__pyx_t_5numpy_int_t) == sizeof(long) && (__pyx_t_5numpy_int_t)-1 < 0); break;
+ case 'q': ok = (sizeof(__pyx_t_5numpy_int_t) == sizeof(long long) && (__pyx_t_5numpy_int_t)-1 < 0); break; default: ok = 0;
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+}
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+ ts = __Pyx_ConsumeWhitespace(ts);
+ ts = __Pyx_BufferTypestringCheck_item_nn___pyx_t_5numpy_int_t(ts);
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+ ts = __Pyx_ConsumeWhitespace(ts);
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+ goto fail;
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+}
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+ PyErr_Format(PyExc_TypeError,
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+ name, type->tp_name, Py_TYPE(obj)->tp_name);
+ return 0;
+}
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+static INLINE void __Pyx_RaiseArgtupleTooLong(
+ Py_ssize_t num_expected,
+ Py_ssize_t num_found)
+{
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+ #else
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+}
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+}
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+}
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+ PyObject *empty_dict = 0;
+ PyObject *list;
+ __import__ = PyObject_GetAttrString(__pyx_b, "__import__");
+ if (!__import__)
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+ if (from_list)
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+ if (!empty_list)
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+ list = empty_list;
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+ if (!global_dict)
+ goto bad;
+ empty_dict = PyDict_New();
+ if (!empty_dict)
+ goto bad;
+ module = PyObject_CallFunction(__import__, "OOOO",
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+bad:
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+}
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+ return result;
+}
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+ #else
+ type = (PyObject*) Py_TYPE(type);
+ Py_INCREF(type);
+ if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+ PyErr_SetString(PyExc_TypeError,
+ "raise: exception class must be a subclass of BaseException");
+ goto raise_error;
+ }
+ #endif
+ }
+ PyErr_Restore(type, value, tb);
+ return;
+raise_error:
+ Py_XDECREF(value);
+ Py_XDECREF(type);
+ Py_XDECREF(tb);
+ return;
+}
+
+#ifndef __PYX_HAVE_RT_ImportType
+#define __PYX_HAVE_RT_ImportType
+static PyTypeObject *__Pyx_ImportType(char *module_name, char *class_name,
+ long size)
+{
+ PyObject *py_module = 0;
+ PyObject *result = 0;
+ PyObject *py_name = 0;
+
+ #if PY_MAJOR_VERSION < 3
+ py_name = PyString_FromString(module_name);
+ #else
+ py_name = PyUnicode_FromString(module_name);
+ #endif
+ if (!py_name)
+ goto bad;
+
+ py_module = __Pyx_ImportModule(module_name);
+ if (!py_module)
+ goto bad;
+ result = PyObject_GetAttrString(py_module, class_name);
+ if (!result)
+ goto bad;
+ if (!PyType_Check(result)) {
+ PyErr_Format(PyExc_TypeError,
+ "%s.%s is not a type object",
+ module_name, class_name);
+ goto bad;
+ }
+ if (((PyTypeObject *)result)->tp_basicsize != size) {
+ PyErr_Format(PyExc_ValueError,
+ "%s.%s does not appear to be the correct type object",
+ module_name, class_name);
+ goto bad;
+ }
+ return (PyTypeObject *)result;
+bad:
+ Py_XDECREF(py_name);
+ Py_XDECREF(result);
+ return 0;
+}
+#endif
+
+#ifndef __PYX_HAVE_RT_ImportModule
+#define __PYX_HAVE_RT_ImportModule
+static PyObject *__Pyx_ImportModule(char *name) {
+ PyObject *py_name = 0;
+ PyObject *py_module = 0;
+
+ #if PY_MAJOR_VERSION < 3
+ py_name = PyString_FromString(name);
+ #else
+ py_name = PyUnicode_FromString(name);
+ #endif
+ if (!py_name)
+ goto bad;
+ py_module = PyImport_Import(py_name);
+ Py_DECREF(py_name);
+ return py_module;
+bad:
+ Py_XDECREF(py_name);
+ return 0;
+}
+#endif
+
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+
+static void __Pyx_AddTraceback(const char *funcname) {
+ PyObject *py_srcfile = 0;
+ PyObject *py_funcname = 0;
+ PyObject *py_globals = 0;
+ PyObject *empty_string = 0;
+ PyCodeObject *py_code = 0;
+ PyFrameObject *py_frame = 0;
+
+ #if PY_MAJOR_VERSION < 3
+ py_srcfile = PyString_FromString(__pyx_filename);
+ #else
+ py_srcfile = PyUnicode_FromString(__pyx_filename);
+ #endif
+ if (!py_srcfile) goto bad;
+ if (__pyx_clineno) {
+ #if PY_MAJOR_VERSION < 3
+ py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, __pyx_clineno);
+ #else
+ py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, __pyx_clineno);
+ #endif
+ }
+ else {
+ #if PY_MAJOR_VERSION < 3
+ py_funcname = PyString_FromString(funcname);
+ #else
+ py_funcname = PyUnicode_FromString(funcname);
+ #endif
+ }
+ if (!py_funcname) goto bad;
+ py_globals = PyModule_GetDict(__pyx_m);
+ if (!py_globals) goto bad;
+ #if PY_MAJOR_VERSION < 3
+ empty_string = PyString_FromStringAndSize("", 0);
+ #else
+ empty_string = PyBytes_FromStringAndSize("", 0);
+ #endif
+ if (!empty_string) goto bad;
+ py_code = PyCode_New(
+ 0, /*int argcount,*/
+ #if PY_MAJOR_VERSION >= 3
+ 0, /*int kwonlyargcount,*/
+ #endif
+ 0, /*int nlocals,*/
+ 0, /*int stacksize,*/
+ 0, /*int flags,*/
+ empty_string, /*PyObject *code,*/
+ __pyx_empty_tuple, /*PyObject *consts,*/
+ __pyx_empty_tuple, /*PyObject *names,*/
+ __pyx_empty_tuple, /*PyObject *varnames,*/
+ __pyx_empty_tuple, /*PyObject *freevars,*/
+ __pyx_empty_tuple, /*PyObject *cellvars,*/
+ py_srcfile, /*PyObject *filename,*/
+ py_funcname, /*PyObject *name,*/
+ __pyx_lineno, /*int firstlineno,*/
+ empty_string /*PyObject *lnotab*/
+ );
+ if (!py_code) goto bad;
+ py_frame = PyFrame_New(
+ PyThreadState_Get(), /*PyThreadState *tstate,*/
+ py_code, /*PyCodeObject *code,*/
+ py_globals, /*PyObject *globals,*/
+ 0 /*PyObject *locals*/
+ );
+ if (!py_frame) goto bad;
+ py_frame->f_lineno = __pyx_lineno;
+ PyTraceBack_Here(py_frame);
+bad:
+ Py_XDECREF(py_srcfile);
+ Py_XDECREF(py_funcname);
+ Py_XDECREF(empty_string);
+ Py_XDECREF(py_code);
+ Py_XDECREF(py_frame);
+}
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+ while (t->p) {
+ #if PY_MAJOR_VERSION < 3
+ if (t->is_unicode && (!t->is_identifier)) {
+ *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+ } else if (t->intern) {
+ *t->p = PyString_InternFromString(t->s);
+ } else {
+ *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+ }
+ #else /* Python 3+ has unicode identifiers */
+ if (t->is_identifier || (t->is_unicode && t->intern)) {
+ *t->p = PyUnicode_InternFromString(t->s);
+ } else if (t->is_unicode) {
+ *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+ } else {
+ *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+ }
+ #endif
+ if (!*t->p)
+ return -1;
+ ++t;
+ }
+ return 0;
+}
+
+/* Type Conversion Functions */
+
+static INLINE Py_ssize_t __pyx_PyIndex_AsSsize_t(PyObject* b) {
+ Py_ssize_t ival;
+ PyObject* x = PyNumber_Index(b);
+ if (!x) return -1;
+ ival = PyInt_AsSsize_t(x);
+ Py_DECREF(x);
+ return ival;
+}
+
+static INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+ if (x == Py_True) return 1;
+ else if (x == Py_False) return 0;
+ else return PyObject_IsTrue(x);
+}
+
+static INLINE PY_LONG_LONG __pyx_PyInt_AsLongLong(PyObject* x) {
+ if (PyInt_CheckExact(x)) {
+ return PyInt_AS_LONG(x);
+ }
+ else if (PyLong_CheckExact(x)) {
+ return PyLong_AsLongLong(x);
+ }
+ else {
+ PY_LONG_LONG val;
+ PyObject* tmp = PyNumber_Int(x); if (!tmp) return (PY_LONG_LONG)-1;
+ val = __pyx_PyInt_AsLongLong(tmp);
+ Py_DECREF(tmp);
+ return val;
+ }
+}
+
+static INLINE unsigned PY_LONG_LONG __pyx_PyInt_AsUnsignedLongLong(PyObject* x) {
+ if (PyInt_CheckExact(x)) {
+ long val = PyInt_AS_LONG(x);
+ if (unlikely(val < 0)) {
+ PyErr_SetString(PyExc_TypeError, "Negative assignment to unsigned type.");
+ return (unsigned PY_LONG_LONG)-1;
+ }
+ return val;
+ }
+ else if (PyLong_CheckExact(x)) {
+ return PyLong_AsUnsignedLongLong(x);
+ }
+ else {
+ PY_LONG_LONG val;
+ PyObject* tmp = PyNumber_Int(x); if (!tmp) return (PY_LONG_LONG)-1;
+ val = __pyx_PyInt_AsUnsignedLongLong(tmp);
+ Py_DECREF(tmp);
+ return val;
+ }
+}
+
+
+static INLINE unsigned char __pyx_PyInt_unsigned_char(PyObject* x) {
+ if (sizeof(unsigned char) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ unsigned char val = (unsigned char)long_val;
+ if (unlikely((val != long_val) || (long_val < 0))) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to unsigned char");
+ return (unsigned char)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE unsigned short __pyx_PyInt_unsigned_short(PyObject* x) {
+ if (sizeof(unsigned short) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ unsigned short val = (unsigned short)long_val;
+ if (unlikely((val != long_val) || (long_val < 0))) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to unsigned short");
+ return (unsigned short)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE char __pyx_PyInt_char(PyObject* x) {
+ if (sizeof(char) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ char val = (char)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to char");
+ return (char)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE short __pyx_PyInt_short(PyObject* x) {
+ if (sizeof(short) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ short val = (short)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to short");
+ return (short)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE int __pyx_PyInt_int(PyObject* x) {
+ if (sizeof(int) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ int val = (int)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to int");
+ return (int)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE long __pyx_PyInt_long(PyObject* x) {
+ if (sizeof(long) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ long val = (long)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to long");
+ return (long)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE signed char __pyx_PyInt_signed_char(PyObject* x) {
+ if (sizeof(signed char) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ signed char val = (signed char)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to signed char");
+ return (signed char)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE signed short __pyx_PyInt_signed_short(PyObject* x) {
+ if (sizeof(signed short) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ signed short val = (signed short)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to signed short");
+ return (signed short)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE signed int __pyx_PyInt_signed_int(PyObject* x) {
+ if (sizeof(signed int) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ signed int val = (signed int)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to signed int");
+ return (signed int)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE signed long __pyx_PyInt_signed_long(PyObject* x) {
+ if (sizeof(signed long) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ signed long val = (signed long)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to signed long");
+ return (signed long)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
+static INLINE long double __pyx_PyInt_long_double(PyObject* x) {
+ if (sizeof(long double) < sizeof(long)) {
+ long long_val = __pyx_PyInt_AsLong(x);
+ long double val = (long double)long_val;
+ if (unlikely((val != long_val) )) {
+ PyErr_SetString(PyExc_OverflowError, "value too large to convert to long double");
+ return (long double)-1;
+ }
+ return val;
+ }
+ else {
+ return __pyx_PyInt_AsLong(x);
+ }
+}
+
Added: trunk/yt/lagos/Interpolators.pyx
==============================================================================
--- (empty file)
+++ trunk/yt/lagos/Interpolators.pyx Sun Sep 14 14:16:35 2008
@@ -0,0 +1,83 @@
+import numpy as np
+cimport numpy as np
+cimport cython
+
+ at cython.boundscheck(False)
+def UnilinearlyInterpolate(np.ndarray[np.float64_t, ndim=1] table,
+ np.ndarray[np.float64_t, ndim=1] x_vals,
+ np.ndarray[np.float64_t, ndim=1] x_bins,
+ np.ndarray[np.int32_t, ndim=1] x_is,
+ np.ndarray[np.float64_t, ndim=1] output):
+ cdef double x, xp, xm
+ cdef int i, x_i, y_i
+ for i in range(x_vals.shape[0]):
+ x_i = x_is[i]
+ x = x_vals[i]
+ xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i])
+ xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i])
+ output[i] = table[x_i ] * (xm) \
+ + table[x_i+1] * (xp)
+
+ at cython.boundscheck(False)
+def BilinearlyInterpolate(np.ndarray[np.float64_t, ndim=2] table,
+ np.ndarray[np.float64_t, ndim=1] x_vals,
+ np.ndarray[np.float64_t, ndim=1] y_vals,
+ np.ndarray[np.float64_t, ndim=1] x_bins,
+ np.ndarray[np.float64_t, ndim=1] y_bins,
+ np.ndarray[np.int32_t, ndim=1] x_is,
+ np.ndarray[np.int32_t, ndim=1] y_is,
+ np.ndarray[np.float64_t, ndim=1] output):
+ cdef double x, xp, xm
+ cdef double y, yp, ym
+ cdef int i, x_i, y_i
+ for i in range(x_vals.shape[0]):
+ x_i = x_is[i]
+ y_i = y_is[i]
+ x = x_vals[i]
+ y = y_vals[i]
+ xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i])
+ yp = (y - y_bins[y_i]) / (y_bins[y_i+1] - y_bins[y_i])
+ xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i])
+ ym = (y_bins[y_i+1] - y) / (y_bins[y_i+1] - y_bins[y_i])
+ output[i] = table[x_i , y_i ] * (xm*ym) \
+ + table[x_i+1, y_i ] * (xp*ym) \
+ + table[x_i , y_i+1] * (xm*yp) \
+ + table[x_i+1, y_i+1] * (xp*yp)
+
+ at cython.boundscheck(False)
+def TrilinearlyInterpolate(np.ndarray[np.float64_t, ndim=3] table,
+ np.ndarray[np.float64_t, ndim=1] x_vals,
+ np.ndarray[np.float64_t, ndim=1] y_vals,
+ np.ndarray[np.float64_t, ndim=1] z_vals,
+ np.ndarray[np.float64_t, ndim=1] x_bins,
+ np.ndarray[np.float64_t, ndim=1] y_bins,
+ np.ndarray[np.float64_t, ndim=1] z_bins,
+ np.ndarray[np.int_t, ndim=1] x_is,
+ np.ndarray[np.int_t, ndim=1] y_is,
+ np.ndarray[np.int_t, ndim=1] z_is,
+ np.ndarray[np.float64_t, ndim=1] output):
+ cdef double x, xp, xm
+ cdef double y, yp, ym
+ cdef double z, zp, zm
+ cdef int i, x_i, y_i, z_i
+ for i in range(x_vals.shape[0]):
+ x_i = x_is[i]
+ y_i = y_is[i]
+ z_i = z_is[i]
+ x = x_vals[i]
+ y = y_vals[i]
+ z = z_vals[i]
+ xp = (x - x_bins[x_i]) / (x_bins[x_i+1] - x_bins[x_i])
+ yp = (y - y_bins[y_i]) / (y_bins[y_i+1] - y_bins[y_i])
+ zp = (z - z_bins[z_i]) / (z_bins[z_i+1] - z_bins[z_i])
+ xm = (x_bins[x_i+1] - x) / (x_bins[x_i+1] - x_bins[x_i])
+ ym = (y_bins[y_i+1] - y) / (y_bins[y_i+1] - y_bins[y_i])
+ zm = (z_bins[z_i+1] - z) / (z_bins[z_i+1] - z_bins[z_i])
+ output[i] = table[x_i ,y_i ,z_i ] * (xm*ym*zm) \
+ + table[x_i+1,y_i ,z_i ] * (xp*ym*zm) \
+ + table[x_i ,y_i+1,z_i ] * (xm*yp*zm) \
+ + table[x_i ,y_i ,z_i+1] * (xm*ym*zp) \
+ + table[x_i+1,y_i ,z_i+1] * (xp*ym*zp) \
+ + table[x_i ,y_i+1,z_i+1] * (xm*yp*zp) \
+ + table[x_i+1,y_i+1,z_i ] * (xp*yp*zm) \
+ + table[x_i+1,y_i+1,z_i+1] * (xp*yp*zp)
Modified: trunk/yt/lagos/setup.py
==============================================================================
--- trunk/yt/lagos/setup.py (original)
+++ trunk/yt/lagos/setup.py Sun Sep 14 14:16:35 2008
@@ -20,6 +20,7 @@
config.make_config_py() # installs __config__.py
config.add_extension("PointCombine", "yt/lagos/PointCombine.c", libraries=["m"])
#config.add_extension("RTIntegrator", "yt/lagos/RTIntegrator.c")
+ config.add_extension("Interpolators", "yt/lagos/Interpolators.c")
config.add_subpackage("hop")
H5dir = check_for_hdf5()
if H5dir is not None:
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