support string units in get_groove (#416)

* enable string quantity syntax in get_groove and update tutorial

* formatting and wording

* update CHANGELOG.md

* simplify

* formatting

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### added
 
-- add support for quality standards. Further information can be found in the corresponding new tutorial. 
+- add support for quality standards. Further information can be found in the corresponding new tutorial.
   [[#211]](https://github.com/BAMWelDX/weldx/pull/211)
 - added `asdf.util.get_schema_path` helper function [[#325]](https://github.com/BAMWelDX/weldx/pull/325)
 - added `util.compare_nested` to check equality of two nested data
@@ -41,13 +41,12 @@
     - Removed `Data` class
     - Updated asdf schemas of all modified classes and the ones that contained references to those classes
 - allow input of string quantities in `MathematicalExpression` parameters and a few other
-  places [[#402]](https://github.com/BAMWelDX/weldx/pull/402)
+  places [[#402]](https://github.com/BAMWelDX/weldx/pull/402) [[#416]](https://github.com/BAMWelDX/weldx/pull/416)
 - `LocalCoordinateSystem.__init__` now accepts a `TimeSeries` as input. All methods of the `CoordinateSystemManager`
   also support this new behavior [[#366]](https://github.com/BAMWelDX/weldx/pull/366)
 - During the creation of a `WeldxFile` the path of a passed custom schema is resolved automatically
   [[#412]](https://github.com/BAMWelDX/weldx/pull/412).
 
-
 ### documentation
 
 - Add new tutorial about the `MeasurementChain` [[#326]](https://github.com/BAMWelDX/weldx/pull/326)

tutorials/groove_types_01.ipynb

@@ -20,9 +20,9 @@
     "* Converting a groove to a profile\n",
     "* Using `plot` on a profile constructed by a groove\n",
     "* All possible groove types as plot\n",
-    "* saving and loading grooves with ASDF\n",
+    "* Saving and loading grooves to/from weldx files\n",
     "\n",
-    "First starting with the imports:"
+    "First starting with the imports needed for this tutorial:"
    ]
   },
   {
@@ -31,14 +31,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# ASDF imports\n",
-    "import asdf\n",
-    "\n",
-    "# Creating grooves\n",
-    "import weldx\n",
-    "from weldx import Q_ as Quantity  # pint quantity from the weldx package\n",
-    "from weldx.asdf.extension import WeldxAsdfExtension, WeldxExtension\n",
-    "from weldx.welding.groove.iso_9692_1 import get_groove"
+    "from weldx import WeldxFile, get_groove"
    ]
   },
   {
@@ -58,21 +51,12 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Workpiece thickness (note the use of 'cm')\n",
-    "t = Quantity(1, \"cm\")\n",
-    "# groove angle\n",
-    "alpha = Quantity(55, \"deg\")\n",
-    "# root gap\n",
-    "b = Quantity(2, \"mm\")\n",
-    "# root face\n",
-    "c = Quantity(1, \"mm\")\n",
-    "\n",
     "v_groove = get_groove(\n",
     "    groove_type=\"VGroove\",\n",
-    "    workpiece_thickness=t,\n",
-    "    groove_angle=alpha,\n",
-    "    root_gap=b,\n",
-    "    root_face=c,\n",
+    "    workpiece_thickness=\"1 cm\",  # (note the use of 'cm')\n",
+    "    groove_angle=\"55 deg\",\n",
+    "    root_gap=\"2 mm\",\n",
+    "    root_face=\"1 mm\",\n",
     ")\n",
     "\n",
     "display(v_groove)\n",
@@ -188,10 +172,8 @@
    "metadata": {},
    "source": [
     "## using ASDF\n",
+    "All groove types can be saved to *weldx*-files.\n",
     "\n",
-    "All groove types can be saved to _ASDF_-files with the included schemas and _ASDF_-extension from the weldx-package.\n",
-    "Note that these schemas and extensions are being handled automatically and you do not have\n",
-    "to worry about these.\n",
     "Here we demonstrate the writing of the groove data into a buffer (in-memory file):"
    ]
   },
@@ -202,7 +184,7 @@
    "outputs": [],
    "source": [
     "tree = dict(test_v_groove=v_groove)\n",
-    "file = weldx.WeldxFile(tree=tree)"
+    "file = WeldxFile(tree=tree)"
    ]
   },
   {
@@ -236,7 +218,7 @@
    "outputs": [],
    "source": [
     "file_copy = file.write_to()\n",
-    "data = weldx.WeldxFile(file_copy)\n",
+    "data = WeldxFile(file_copy)\n",
     "data[\"test_v_groove\"]"
    ]
   },

weldx/welding/groove/iso_9692_1.py

@@ -1946,7 +1946,7 @@ def get_groove(
     _mapping = groove_cls._mapping
 
     # convert function arguments to groove arguments
-    args = {k: _loc[v] for k, v in _mapping.items() if _loc[v] is not None}
+    args = {k: Q_(_loc[v]) for k, v in _mapping.items() if _loc[v] is not None}
     if _loc["code_number"] is not None:
         args["code_number"] = _loc["code_number"]