update to w_2021_40 and warnings

Author: kadrlica

05_Intro_to_Source_Detection.ipynb

@@ -6,7 +6,7 @@
    "source": [
     "<img align=\"left\" src = https://project.lsst.org/sites/default/files/Rubin-O-Logo_0.png width=250 style=\"padding: 10px\"> \n",
     "<b>Introduction to Source Detection</b> <br>\n",
-    "Last verified to run on 2021-09-24 with LSST Science Pipelines release w_2021_33 <br>\n",
+    "Last verified to run on 2021-10-12 with LSST Science Pipelines release w_2021_40 <br>\n",
     "Contact author: Alex Drlica-Wagner, Melissa Graham <br>\n",
     "Target audience: All DP0 delegates. <br>\n",
     "Container Size: medium <br>\n",
@@ -88,6 +88,18 @@
     "from lsst.meas.base import SingleFrameMeasurementTask"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# prevent some helpful but ancillary warning messages from printing\n",
+    "#   during some LSST DM Release calls\n",
+    "warnings.simplefilter(\"ignore\", category=UserWarning)\n",
+    "warnings.simplefilter(\"ignore\", category=FutureWarning)"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -302,6 +314,7 @@
     "x_target, y_target = 1700, 2100\n",
     "width, height = 400, 400\n",
     "xmin, ymin = x_target-width//2, y_target-height//2\n",
+    "point = geom.Point2D(x_target,y_target)\n",
     "\n",
     "# Define a small region for a cutout\n",
     "bbox = geom.Box2I()\n",
@@ -493,12 +506,13 @@
     "# Image characterization (this cell may take a few seconds)\n",
     "result = charImageTask.run(calexp)\n",
     "\n",
+    "# Get the PSF at our point of interest\n",
     "psf = calexp.getPsf()\n",
-    "sigma = psf.computeShape().getDeterminantRadius()\n",
+    "sigma = psf.computeShape(point).getDeterminantRadius()\n",
     "pixelScale = calexp.getWcs().getPixelScale().asArcseconds()\n",
     "\n",
     "# The factor of 2.355 converts from std to fwhm\n",
-    "print('psf fwhm = {:.2f} arcsec'.format(sigma*pixelScale*2.355))"
+    "#print('psf fwhm = {:.2f} arcsec'.format(sigma*pixelScale*2.355))"
    ]
   },
   {