diff --git a/notes/landsat.tif b/notes/landsat.tif
new file mode 100644
index 0000000..78321ad
Binary files /dev/null and b/notes/landsat.tif differ
diff --git a/notes/landsat_crs.tif b/notes/landsat_crs.tif
new file mode 100644
index 0000000..78321ad
Binary files /dev/null and b/notes/landsat_crs.tif differ
diff --git a/notes/lecture18.ipynb b/notes/lecture18.ipynb
index b4b8a83..ee7745c 100644
--- a/notes/lecture18.ipynb
+++ b/notes/lecture18.ipynb
@@ -87,6 +87,303 @@
"Map"
]
},
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n",
+ " \n",
+ " "
+ ],
+ "text/plain": [
+ ""
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "5141d888c730426cae8773f88089d9ee",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Map(bottom=25699.0, center=[37.47921744485059, -121.27807617187501], controls=(WidgetControl(options=['positio…"
+ ]
+ },
+ "execution_count": 3,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "region = ee.Geometry.BBox(-122.5955, 37.5339, -122.0982, 37.8252)\n",
+ "fc = ee.FeatureCollection(region)\n",
+ "style = {'color': 'ffff00ff', 'fillColor': '00000000'}\n",
+ "Map.addLayer(fc.style(**style), {}, 'ROI')\n",
+ "Map"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# To local Drive\n",
+ "\n",
+ "not allow to direct download the whole Landsat images (file size too big)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n",
+ " \n",
+ " "
+ ],
+ "text/plain": [
+ ""
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Generating URL ...\n",
+ "Downloading data from https://earthengine.googleapis.com/v1/projects/earthengine-legacy/thumbnails/0ebda04148d528623a64a61f25914a36-9e9344091f08ea472b011e35be23ecde:getPixels\n",
+ "Please wait ...\n",
+ "Data downloaded to c:\\Users\\zyang\\spatial_data_management\\notes\\landsat.tif\n"
+ ]
+ }
+ ],
+ "source": [
+ "geemap.ee_export_image(image, filename= 'landsat.tif', scale=30, region=region)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Projection"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n",
+ " \n",
+ " "
+ ],
+ "text/plain": [
+ ""
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/plain": [
+ "{'type': 'Projection',\n",
+ " 'crs': 'EPSG:32610',\n",
+ " 'transform': [30, 0, 460785, 0, -30, 4264215]}"
+ ]
+ },
+ "execution_count": 5,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "\n",
+ "projection = image.select(0).projection().getInfo()\n",
+ "projection"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 6,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n",
+ " \n",
+ " "
+ ],
+ "text/plain": [
+ ""
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "crs = projection['crs']\n",
+ "crs_transform = projection['transform']"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 7,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n",
+ " \n",
+ " "
+ ],
+ "text/plain": [
+ ""
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Generating URL ...\n",
+ "Downloading data from https://earthengine.googleapis.com/v1/projects/earthengine-legacy/thumbnails/bd8458b905e1eb71a1c7ed508325e2e3-dfe046284f738d6ba418aa9ec836ecfe:getPixels\n",
+ "Please wait ...\n",
+ "Data downloaded to c:\\Users\\zyang\\spatial_data_management\\notes\\landsat_crs.tif\n"
+ ]
+ }
+ ],
+ "source": [
+ "geemap.ee_export_image(\n",
+ " image,\n",
+ " filename=\"landsat_crs.tif\",\n",
+ " crs=crs,\n",
+ " crs_transform=crs_transform,\n",
+ " region=region,\n",
+ ")\n",
+ " "
+ ]
+ },
{
"cell_type": "code",
"execution_count": null,