Changeset a7c2cfe in sasmodels
- Timestamp:
- Apr 18, 2016 9:47:24 AM (9 years ago)
- Branches:
- master, core_shell_microgels, costrafo411, magnetic_model, release_v0.94, release_v0.95, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
- Children:
- 1bf66d9
- Parents:
- 4605bf10 (diff), 38a9b07 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent. - Location:
- sasmodels
- Files:
-
- 1 added
- 5 edited
Legend:
- Unmodified
- Added
- Removed
-
sasmodels/model_test.py
r0ff62d4 r38a9b07 259 259 self.assertTrue(np.isfinite(actual_yi), 260 260 'invalid f(%s): %s' % (xi, actual_yi)) 261 elif np.isnan(yi): 262 self.assertTrue(np.isnan(actual_yi), 263 'f(%s): expected:%s; actual:%s' 264 % (xi, yi, actual_yi)) 261 265 else: 262 self.assertTrue(is_near(yi, actual_yi, 5), 266 # is_near does not work for infinite values, so also test 267 # for exact values. Note that this will not 268 self.assertTrue(yi==actual_yi or is_near(yi, actual_yi, 5), 263 269 'f(%s); expected:%s; actual:%s' 264 270 % (xi, yi, actual_yi)) -
sasmodels/models/__init__.py
r32c160a r1ca1fd9 1 """ 2 1D Modeling for SAS 3 """ 4 #from sas.models import * 5 6 import os 7 from distutils.filelist import findall 8 9 __version__ = "2.1.0" 10 11 def get_data_path(media): 12 """ 13 """ 14 # Check for data path in the package 15 path = os.path.join(os.path.dirname(__file__), media) 16 if os.path.isdir(path): 17 return path 18 19 # Check for data path next to exe/zip file. 20 # If we are inside a py2exe zip file, we need to go up 21 # to get to the directory containing 22 # the media for this module 23 path = os.path.dirname(__file__) 24 #Look for maximum n_dir up of the current dir to find media 25 n_dir = 12 26 for i in range(n_dir): 27 path, _ = os.path.split(path) 28 media_path = os.path.join(path, media) 29 if os.path.isdir(media_path): 30 module_media_path = os.path.join(media_path, 'models_media') 31 if os.path.isdir(module_media_path): 32 return module_media_path 33 return media_path 34 35 raise RuntimeError('Could not find models media files') 36 37 def data_files(): 38 """ 39 Return the data files associated with media. 40 41 The format is a list of (directory, [files...]) pairs which can be 42 used directly in setup(...,data_files=...) for setup.py. 43 44 """ 45 data_files = [] 46 path_img = get_data_path(media=os.path.join("sasmodels","sasmodels","models","img")) 47 #path_img = get_data_path(media="img") 48 im_list = findall(path_img) 49 #for f in findall(path): 50 # if os.path.isfile(f) and f not in im_list: 51 # data_files.append(('media/models_media', [f])) 52 53 for f in im_list: 54 data_files.append(('media/models_media/img', [f])) 55 return data_files 56 -
sasmodels/models/porod.py
rec45c4f r82923a6 26 26 """ 27 27 28 from numpy import sqrt, power 28 from numpy import sqrt, power, inf, errstate 29 29 30 30 name = "porod" … … 42 42 @param q: Input q-value 43 43 """ 44 return 1.0/power(q, 4) 44 with errstate(divide='ignore'): 45 return power(q, -4) 45 46 46 47 Iq.vectorized = True # Iq accepts an array of q values … … 58 59 demo = dict(scale=1.5, background=0.5) 59 60 60 tests = [[{'scale': 0.00001, 'background':0.01}, 0.04, 3.916250]] 61 tests = [ 62 [{'scale': 0.00001, 'background':0.01}, 0.04, 3.916250], 63 [{}, 0.0, inf], 64 ] -
sasmodels/models/spherical_sld.c
r299dcce r4605bf10 1 //Headers 2 static double form_volume(double thick_inter[], 3 double thick_flat_[], 4 double core_radius, 5 int n_shells); 6 7 double Iq(double q, 1 static double form_volume( 8 2 int n_shells, 9 double thick_inter[], 10 double func_inter[], 11 double sld_core, 12 double sld_solvent, 13 double sld_flat[], 3 double radius_core, 14 4 double thick_flat[], 15 double nu_inter[], 16 int npts_inter, 17 double core_radius); 18 19 double Iqxy(double qx, double qy, 20 int n_shells, 21 double thick_inter[], 22 double func_inter[], 23 double sld_core, 24 double sld_solvent, 25 double sld_flat[], 26 double thick_flat[], 27 double nu_inter[], 28 int npts_inter, 29 double core_radius); 30 31 //Main code 32 static double form_volume(double thick_inter[], 33 double thick_flat_[], 34 double core_radius, 35 int n) 5 double thick_inter[]) 36 6 { 37 7 double radius = 0.0; 38 8 int i; 39 double r = core_radius;40 for (i=0; i < n ; i++) {9 double r = radius_core; 10 for (i=0; i < n_shells; i++) { 41 11 r += thick_inter[i]; 42 12 r += thick_flat[i]; … … 56 26 double background = dp[6]; 57 27 double npts = dp[57]; //number of sub_layers in each interface 58 double nsl=npts;//21.0; //nsl = Num_sub_layer: MUST ODD number in double //no other number works now28 double nsl=npts;//21.0; //nsl = Num_sub_layer: must be ODD double number 59 29 int n_s; 60 30 … … 63 33 double pi; 64 34 65 //int* fun_type;66 //double* sld;67 //double* thick_inter;68 //double* thick;69 //double* fun_coef;70 71 35 double total_thick=0.0; 72 36 73 //fun_type = (int*)malloc((n+2)*sizeof(int));74 //sld = (double*)malloc((n+2)*sizeof(double));75 //thick_inter = (double*)malloc((n+2)*sizeof(double));76 //thick = (double*)malloc((n+2)*sizeof(double));77 //fun_coef = (double*)malloc((n+2)*sizeof(double));78 79 //TODO: Solution to avoid mallocs but probablyu can be done better80 37 int fun_type[12]; 81 38 double sld[12]; … … 175 132 if (fabs(slope) > 0.0 ){ 176 133 //fun = sign * 3.0 * r * (2.0*qr*sin(qr)-((qr*qr)-2.0)*cos(qr))/(qr * qr * qr * qr); 177 fun = sign * r * sph_j1c(qr) + sign * 3.0 * sin(qr)/(qr * qr * q ) + sign * 6.0 * cos(qr)/(qr * qr * qr * q); 134 fun = sign * r * sph_j1c(qr) + sign * 3.0 * sin(qr)/(qr * qr * q ) 135 + sign * 6.0 * cos(qr)/(qr * qr * qr * q); 178 136 } 179 137 } … … 203 161 } 204 162 } 205 //vol += vol_sub;206 163 f2 = f * f / vol; 207 //f2 *= scale;208 //f2 += background;209 //free(fun_type);210 //free(sld);211 //free(thick_inter);212 //free(thick);213 //free(fun_coef);214 164 215 165 return (f2); … … 222 172 * @return: function value 223 173 */ 224 double Iq(double q,174 static double Iq(double q, 225 175 int n_shells, 226 double thick_inter[],227 double func_inter[],176 int npts_inter, 177 double radius_core, 228 178 double sld_core, 229 179 double sld_solvent, 230 180 double sld_flat[], 231 181 double thick_flat[], 232 double nu_inter[], 233 int npts_inter, 234 double core_radius 235 ) { 182 double func_inter[], 183 double thick_inter[], 184 double nu_inter[] ) { 236 185 237 186 //printf("Number of points %d\n",npts_inter); 238 187 double intensity; 239 //TODO: Remove this container at later stage. It is only kept to minimize stupid errors now188 //TODO: Remove this container at later stage. 240 189 double dp[60]; 241 190 dp[0] = n_shells; 242 191 //This is scale will also have to be removed at some stage 243 192 dp[1] = 1.0; 244 dp[2] = thick_inter _0;245 dp[3] = func_inter _0;193 dp[2] = thick_inter[0]; 194 dp[3] = func_inter[0]; 246 195 dp[4] = sld_core; 247 196 dp[5] = sld_solvent; 248 197 dp[6] = 0.0; 249 198 250 for (i =0; i<n; i++){199 for (int i=1; i<n_shells; i++){ 251 200 dp[i+7] = sld_flat[i]; 252 201 dp[i+17] = thick_inter[i]; … … 257 206 258 207 dp[57] = npts_inter; 259 dp[58] = nu_inter _0;260 dp[59] = rad _core_0;208 dp[58] = nu_inter[0]; 209 dp[59] = radius_core; 261 210 262 211 intensity = 1.0e-4*sphere_sld_kernel(dp,q); … … 271 220 * @return: function value 272 221 */ 273 double Iqxy(double qx, double qy, 222 223 /*static double Iqxy(double qx, double qy, 274 224 int n_shells, 275 double thick_inter[],276 double func_inter[],225 int npts_inter, 226 double radius_core 277 227 double sld_core, 278 228 double sld_solvent, 279 229 double sld_flat[], 280 230 double thick_flat[], 231 double func_inter[], 232 double thick_inter[], 281 233 double nu_inter[], 282 int npts_inter,283 double core_radius284 234 ) { 285 235 286 236 double q = sqrt(qx*qx + qy*qy); 287 return Iq(q, n_shells, thick_inter_0, func_inter_0, core0_sld, solvent_sld, 288 flat1_sld, flat2_sld, flat3_sld, flat4_sld, flat5_sld, 289 flat6_sld, flat7_sld, flat8_sld, flat9_sld, flat10_sld, 290 thick_inter_1, thick_inter_2, thick_inter_3, thick_inter_4, thick_inter_5, 291 thick_inter_6, thick_inter_7, thick_inter_8, thick_inter_9, thick_inter_10, 292 thick_flat_1, thick_flat_2, thick_flat_3, thick_flat_4, thick_flat_5, 293 thick_flat_6, thick_flat_7, thick_flat_8, thick_flat_9, thick_flat_10, 294 func_inter_1, func_inter_2, func_inter_3, func_inter_4, func_inter_5, 295 func_inter_6, func_inter_7, func_inter_8, func_inter_9, func_inter_10, 296 nu_inter_1, nu_inter_2, nu_inter_3, nu_inter_4, nu_inter_5, 297 nu_inter_6, nu_inter_7, nu_inter_8, nu_inter_9, nu_inter_10, 298 npts_inter, nu_inter_0, rad_core_0); 299 300 //TODO: Check if evalute rphi is not needed? 301 302 } 303 237 return Iq(q, n_shells, npts_inter, radius_core, sld_core, sld_solvent, 238 sld_flat[], thick_flat[], func_inter[], thick_inter[], nu_inter[]) 239 }*/ 240 -
sasmodels/models/spherical_sld.py
rd2bb604 r4605bf10 170 170 # pylint: disable=bad-whitespace, line-too-long 171 171 # ["name", "units", default, [lower, upper], "type", "description"], 172 parameters = [["n", "", 1, [0, 9], "", "number of shells"], 172 parameters = [["n_shells", "", 1, [0, 9], "", "number of shells"], 173 ["npts_inter", "", 35, [0, 35], "", "number of points in each sublayer Must be odd number"], 173 174 ["radius_core", "Ang", 50.0, [0, inf], "", "intern layer thickness"], 174 175 ["sld_core", "1e-6/Ang^2", 2.07, [-inf, inf], "", "sld function flat"], 175 ["sld_flat[n]", "1e-6/Ang^2", 4.06, [-inf, inf], "", "sld function flat"],176 ["thick_flat[n]", "Ang", 100.0, [0, inf], "", "flat layer_thickness"],177 ["func_inter[n]", "", 0, [0, 4], "", "Erf:0, RPower:1, LPower:2, RExp:3, LExp:4"],178 ["thick_inter[n]", "Ang", 50.0, [0, inf], "", "intern layer thickness"],179 ["inter_nu[n]", "", 2.5, [-inf, inf], "", "steepness parameter"],180 ["npts_inter", "", 35, [0, 35], "", "number of points in each sublayer Must be odd number"],181 176 ["sld_solvent", "1e-6/Ang^2", 1.0, [-inf, inf], "", "sld function solvent"], 177 ["sld_flat[n_shells]", "1e-6/Ang^2", 4.06, [-inf, inf], "", "sld function flat"], 178 ["thick_flat[n_shells]", "Ang", 100.0, [0, inf], "", "flat layer_thickness"], 179 ["func_inter[n_shells]", "", 0, [0, 4], "", "Erf:0, RPower:1, LPower:2, RExp:3, LExp:4"], 180 ["thick_inter[n_shells]", "Ang", 50.0, [0, inf], "", "intern layer thickness"], 181 ["nu_inter[n_shells]", "", 2.5, [-inf, inf], "", "steepness parameter"], 182 182 ] 183 183 # pylint: enable=bad-whitespace, line-too-long 184 #source = ["lib/librefl.c", "lib/sph_j1c.c", "spherical_sld.c"] 185 186 def Iq(q, *args, **kw): 187 return q 188 189 def Iqxy(qx, *args, **kw): 190 return qx 184 source = ["lib/librefl.c", "lib/sph_j1c.c", "spherical_sld.c"] 185 186 #def Iq(q, *args, **kw): 187 # return q 188 189 #def Iqxy(qx, *args, **kw): 190 # return qx 191 192 def profile(n_shells, radius_core, sld_core, sld_solvent, sld_flat, 193 thick_flat, func_inter, thick_inter, nu_inter, npts_inter): 194 """ 195 Returns shape profile with x=radius, y=SLD. 196 """ 197 198 z = [] 199 beta = [] 200 z0 = 0 201 # two sld points for core 202 z.append(0) 203 beta.append(sld_core) 204 z.append(radius_core) 205 beta.append(sld_core) 206 z0 += radius_core 207 208 for i in range(1, n_shells+2): 209 dz = thick_inter[i-1]/npts_inter 210 # j=0 for interface, j=1 for flat layer 211 for j in range(0, 2): 212 # interation for sub-layers 213 for n_s in range(0, npts_inter+1): 214 if j == 1: 215 if i == n_shells+1: 216 break 217 # shift half sub thickness for the first point 218 z0 -= dz#/2.0 219 z.append(z0) 220 #z0 -= dz/2.0 221 z0 += thick_flat[i] 222 sld_i = sld_flat[i] 223 beta.append(sld_flat[i]) 224 dz = 0 225 else: 226 nu = nu_inter[i-1] 227 # decide which sld is which, sld_r or sld_l 228 if i == 1: 229 sld_l = sld_core 230 else: 231 sld_l = sld_flat[i-1] 232 if i == n_shells+1: 233 sld_r = sld_solvent 234 else: 235 sld_r = sld_flat[i] 236 # get function type 237 func_idx = func_inter[i-1] 238 # calculate the sld 239 sld_i = intersldfunc(func_idx, npts_inter, n_s, nu, 240 sld_l, sld_r) 241 # append to the list 242 z.append(z0) 243 beta.append(sld_i) 244 z0 += dz 245 if j == 1: 246 break 247 z.append(z0) 248 beta.append(sld_solvent) 249 z_ext = z0/5.0 250 z.append(z0+z_ext) 251 beta.append(sld_solvent) 252 # return sld profile (r, beta) 253 return np.asarray(z), np.asarray(beta)*1e-6 254 255 def ER(core_radius, n, thickness): 256 return np.sum(thickness[:n[0]], axis=0) + core_radius 257 258 def VR(core_radius, n, thickness): 259 return 1.0, 1.0 191 260 192 261 … … 194 263 n=4, 195 264 scale=1.0, 196 s olvent_sld=1.0,265 sld_solvent=1.0, 197 266 background=0.0, 198 267 npts_inter=35.0,
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