<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">There are no specific controls for the arrows in the streamlines. I'll put it on my list of requested features. <div><br><div>The line thickness ranges from 1 to 12. For postscript output, the values 1-12 are distinct for lines of gradually increasing thickness. For image output, thickness values 1-5 all look the same (thin), same with thickness values 6-11 (thick); thickness value 12 is the thickest. A trick for making contours stand out a bit more in a plot is to draw white (or black) thick contours, then overlay thin colored contours. This gives the colored contours a little background to highlight them against a map or shaded contour plot. In version 2.0.a6, there was a little bug introduced that led to the display window not showing the thickness properly, even though the image output from printim looked right. That was fixed in 2.0.a7.1. </div><div>--Jennifer</div><div><br></div><div><br></div><div><div><div><div>On Aug 11, 2009, at 4:40 PM, Mike Bosilovich wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>OK, spoke too soon, set cthick does affect the thickness of the lines.<br>Didn't notice the difference till set cthick 10 and greater.<br><br>Mike<br><br>On Thu, Jul 30, 2009 at 3:52 AM, zhao yacang<<a href="mailto:zdr1168@yahoo.com">zdr1168@yahoo.com</a>> wrote:<br><blockquote type="cite">HI, Ladies and Gentle man:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I am using 'set gxout stream' to draw streamline figure. But I find that<br></blockquote><blockquote type="cite">there is few command to control the streamline. The command I can find and<br></blockquote><blockquote type="cite">use is 'set strmden'.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Is anyone know how to control the streamline, i.e. the streamline thickness<br></blockquote><blockquote type="cite">and the streamline arrow density and arrow size?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Thanks a lot!<br></blockquote><blockquote type="cite"><br></blockquote></div></blockquote></div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>--</div><div>Jennifer M. Adams</div><div>IGES/COLA</div><div>4041 Powder Mill Road, Suite 302</div><div>Calverton, MD 20705</div><div><a href="mailto:jma@cola.iges.org">jma@cola.iges.org</a></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span></div></span> </div><br></div></div></div></body></html>