<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif">Hi Rick,</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">I don't have any problem plotting the scatter plot or changing the translucency of the points. However, it doesn't have the desired visual effect that I want, plus I am asked to overlay a heatmap contour plot of the density of the point by journal reviewer, and that's what I couldn't figure out how to do.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif"> I appreciate your help.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">Melissa</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Aug 16, 2019 at 5:26 PM Rick Brownrigg <<a href="mailto:brownrig@ucar.edu">brownrig@ucar.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi Melissa,</div><div><br></div><div>You might try making the markers somewhat translucent to reduce their overall visual impact.See the resource gsMarkerOpacityF at:</div><div><br></div><div><a href="http://ncl.ucar.edu/Document/Graphics/Resources/gs.shtml" target="_blank">http://ncl.ucar.edu/Document/Graphics/Resources/gs.shtml</a></div><div><br></div><div>I might start with a value of 0.5 and decrease or increase to get the right effect.</div><div><br></div><div>Hope that helps...</div><div>Rick<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Aug 16, 2019 at 2:48 PM MELISSA KAZEMI RAD via ncl-talk <<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif">Hi,</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">I'd like to overlay a contour over a scatter plot that reflects density of respective data points, something like a heatmap. The scatter plot that I have is so dense that it's almost impossible to have a sense of how scattered the data points actually are.</div><div class="gmail_default" style="font-family:georgia,serif">I looked for examples, but none were what I am looking for. I am looking for something like the attached plot.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">Thanks,</div><div class="gmail_default" style="font-family:georgia,serif">Melissa</div><div><br></div>-- <br><div dir="ltr" class="gmail-m_-3339474855185202709gmail-m_-453600806344163847gmail_signature"><div dir="ltr"><font face="georgia, serif"><i>Melissa Kazemi Rad</i></font><div><font face="georgia, serif"><i>Atmospheric Sciences Department</i></font></div><div><font face="georgia, serif"><i>Rutgers University</i></font></div></div></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><font face="georgia, serif"><i>Melissa Kazemi Rad</i></font><div><font face="georgia, serif"><i>Atmospheric Sciences Department</i></font></div><div><font face="georgia, serif"><i>Rutgers University</i></font></div></div></div>