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+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# ensure that the Selafin engine is available\n",
+    "%pip install xarray-selafin"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# main imports\n",
+    "import holoviews as hv\n",
+    "hv.extension(\"bokeh\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import thalassa\n",
+    "from thalassa import api"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "malpasset = api.open_dataset('../tests/data/r2d_malpasset-char_p2.slf', source_crs = None) # default EPSG is 4326\n",
+    "malpasset"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "The `Malpasset` mesh is not georeferentiated in a known local coordinate system\n",
+    "\n",
+    "We'll avoid activating the default EPSG (4326) in order to be able to view it. \n",
+    "\n",
+    "by imposing `source_crs = None`, we disable: \n",
+    " * reprojection done on the mesh (Thalassa reprojects  automatically to Mercator to superpose meshes with WMS tiles) \n",
+    " * the tiling visualization"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# The trimesh is the most basic object. This is what you need to create all the others graphs\n",
+    "# It is on this object that you specify the timestamp and/or the layer.\n",
+    "trimesh = api.create_trimesh(malpasset.isel(time=0), variable='H')\n",
+    "\n",
+    "# The nodes of the mesh (without triangles, just the points!)\n",
+    "nodes = api.get_nodes(trimesh)\n",
+    "\n",
+    "# The wireframe is the representation of the mesh\n",
+    "wireframe = api.get_wireframe(trimesh)\n",
+    "\n",
+    "# The raster object is the basic Map that visualizes the variable. \n",
+    "# You can specify things like the colorbar limits and/or the extents\n",
+    "#raster = api.get_raster(trimesh, clim_min=0, clim_max=15)\n",
+    "raster = api.get_raster(trimesh).opts(cmap = 'rainbow')\n",
+    "\n",
+    "(raster * wireframe).opts(width=900, height=600)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To show another example using a known CRS, here is the `Manche` mesh from the TOMAWAC examples:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "manche = api.open_dataset('../tests/data/r2d.V1P3.slf') # use the default EPSG (4326)\n",
+    "manche"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "thalassa.plot(\n",
+    "    manche.isel(time = -1), \n",
+    "    variable='HAUTEUR_HM0', \n",
+    "    show_mesh = True, \n",
+    "    cmap = 'rainbow'\n",
+    ").opts(width=900, height = 900)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": ".venv",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.13"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}