checkerboard is now created as plaid

demo/illusions/checkerboard.ipynb

@@ -30,15 +30,17 @@
    "outputs": [],
    "source": [
     "params = {\n",
-    "    \"shape\": None,\n",
-    "    \"ppd\": 32,\n",
     "    \"visual_size\": None,\n",
+    "    \"ppd\": 32,\n",
+    "    \"shape\": None,\n",
+    "    \"frequency\": None,\n",
     "    \"board_shape\": (5, 8),\n",
     "    \"check_visual_size\": 2.0,\n",
     "    \"targets\": ((2, 1), (2, 6)),\n",
     "    \"extend_targets\": False,\n",
-    "    \"intensity_low\": 0.0,\n",
-    "    \"intensity_high\": 1.0,\n",
+    "    \"period\": \"ignore\",\n",
+    "    \"rotation\": 0,\n",
+    "    \"intensity_checks\": (0.0, 1.0),\n",
     "    \"intensity_target\": 0.5,\n",
     "}\n",
     "stim = checkerboard(**params)\n",
@@ -120,16 +122,18 @@
     "    intensity_low = intensity_range[1]\n",
     "    targets = [(target_row, target1_col), (target_row, target2_col)]\n",
     "    stim = checkerboard(\n",
-    "        shape,\n",
-    "        ppd,\n",
-    "        visual_size,\n",
-    "        board_shape,\n",
-    "        check_visual_size,\n",
-    "        targets,\n",
-    "        extend_targets,\n",
-    "        intensity_low,\n",
-    "        intensity_high,\n",
-    "        intensity_target,\n",
+    "        visual_size=visual_size,\n",
+    "        ppd=ppd,\n",
+    "        shape=shape,\n",
+    "        frequency=None,\n",
+    "        board_shape=board_shape,\n",
+    "        check_visual_size=check_visual_size,\n",
+    "        targets=targets,\n",
+    "        extend_targets=extend_targets,\n",
+    "        period=\"ignore\",\n",
+    "        rotation=0,\n",
+    "        intensity_checks=(intensity_low, intensity_high),\n",
+    "        intensity_target=intensity_target,\n",
     "    )\n",
     "    plot_stim(stim)\n",
     "\n",
@@ -252,7 +256,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.10.5 64-bit ('stimuli-dev')",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -266,9 +270,50 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.5"
+   "version": "3.10.6"
+  },
+  "toc": {
+   "base_numbering": 1,
+   "nav_menu": {},
+   "number_sections": true,
+   "sideBar": true,
+   "skip_h1_title": false,
+   "title_cell": "Table of Contents",
+   "title_sidebar": "Contents",
+   "toc_cell": false,
+   "toc_position": {},
+   "toc_section_display": true,
+   "toc_window_display": false
+  },
+  "varInspector": {
+   "cols": {
+    "lenName": 16,
+    "lenType": 16,
+    "lenVar": 40
+   },
+   "kernels_config": {
+    "python": {
+     "delete_cmd_postfix": "",
+     "delete_cmd_prefix": "del ",
+     "library": "var_list.py",
+     "varRefreshCmd": "print(var_dic_list())"
+    },
+    "r": {
+     "delete_cmd_postfix": ") ",
+     "delete_cmd_prefix": "rm(",
+     "library": "var_list.r",
+     "varRefreshCmd": "cat(var_dic_list()) "
+    }
+   },
+   "types_to_exclude": [
+    "module",
+    "function",
+    "builtin_function_or_method",
+    "instance",
+    "_Feature"
+   ],
+   "window_display": false
   },
-  "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
     "hash": "d79f930315d22092267204fc095ece7b80c939bb23fde6f7397d8c6352112825"

stimuli/components/__init__.py

@@ -318,8 +318,11 @@ def resolve_grating_params(
             f"Grating frequency ({frequency}) should not exceed Nyquist limit {ppd/2} (ppd/2)"
         )
 
-    # Accumulate edges of phases
+    # Accumulate edges of phases (rounding to avoid accumulation of
+    # floating point imprecisions)
     edges = [*itertools.accumulate(itertools.repeat(phase_width, int(np.ceil(n_phases))))]
+    edges = np.round(np.array(edges), 8)
+    edges = list(edges)
 
     return {
         "length": length,