shrug-l: question du jour input

Arbogast, Rene Rene.Arbogast@dep.state.fl.us
Fri, 30 Sep 2005 17:42:15 -0400


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  Also and in addition, folks that need less Email traffic can receive =
their
listgroup mail in 'digest mode', where you get a snapshot daily (or so) =
of
recent communications.  Have a great weekend, everybody!
Ren=E9

  _____ =20

From: shrug-l-admin@lists.dep.state.fl.us
[mailto:shrug-l-admin@lists.dep.state.fl.us] On Behalf Of Miguel Garriga
Sent: Friday, September 30, 2005 5:17 PM
To: shrug-L@lists.dep.state.fl.us
Subject: RE: shrug-l: question du jour input



I can sympathize with wanting to reduce traffic in your Inbox.  In =
general,
responding to the poster (not the list) and summarizing to the list is a =
good
idea.  I can also understand the benefit of monitoring the traffic.  =
Also,
sometimes a problem evolves and requires additional input.

=20

One solution is to create a SHRUG mail folder, and set up a Rule to
automatically move incoming emails with "shrug-l" in the subject to the =
SHRUG
folder.  This way you can monitor incoming SHRUG emails (if you want) =
and
keep your Inbox clear.

=20

In Microsoft Outlook (XP):

1. Create the SHRUG mail folder.  Right click on "Personal Folders", =
select
"New Folder" call it SHRUG.

2. Set up a Rule to move incoming SHRUG emails to it.  Tools - Rules and
Alerts, E-Mail Rules tab, New Rule.  Rules Wizard - "Start creating a =
rule
from a template", Step 1 "Move messages with specific words in the =
subject to
a folder", Step 2 - click on "specific words" and type in "shrug-l", =
then
click on "specified folder" and navigate to your new SHRUG folder.  Hit =
next
a couple of times, name the rule, check the box to run the rule now if =
you
want, and hit Finish.

=20

=20

- Miguel Garriga

Geographic Systems LLC

  _____ =20

From: shrug-l-admin@lists.dep.state.fl.us
[mailto:shrug-l-admin@lists.dep.state.fl.us] On Behalf Of Cyndi Brown
Sent: Friday, September 30, 2005 4:01 PM
To: lance.peterson@dot.state.fl.us; shrug-L@lists.dep.state.fl.us
Subject: shrug-l: question du jour input

=20

My op is, if you dont want to read it delete it. ez! but some other =
people
may just benefit from the back and forth sharing, they may have similar
probs.=20


-----Original Message-----=20
From: lance.peterson@dot.state.fl.us=20
Sent: Sep 30, 2005 1:21 PM=20
To: shrug-L@lists.dep.state.fl.us=20
Subject: RE: shrug-l: Question du jour=20


I like the back and forth also. This is really the best GIS newsgroup I
belong too.=20

At least we don't have a problem with spam.=20

Lance Peterson




"Nonie Castro" <nonie_castro@coxtarget.com>=20
Sent by: shrug-l-admin@lists.dep.state.fl.us=20

09/30/2005 01:17 PM=20

To

<shrug-L@lists.dep.state.fl.us>=20

cc

=20

Subject

RE: shrug-l: Question du jour

=20

=20

=20




If we are taking a vote - I don't mind the back and forth in real time.=20

  _____ =20

From: shrug-l-admin@lists.dep.state.fl.us
[mailto:shrug-l-admin@lists.dep.state.fl.us] On Behalf Of Joe Noble
Sent: Friday, September 30, 2005 1:06 PM
To: Sykes, John; Geographic Systems LLC; shrug-L@lists.dep.state.fl.us
Subject: RE: shrug-l: Question du jour

I would like to suggest some sort of protocol that folks post their =
question,
once, then those that have a possible solution contact the person =
directly
not numerous e-mails to the entire user list.  After a solution has been
decided, the original person posting the question could sum the =
solutions in
one e-mail back to the board.  Sorry but my e-mail has been looking like =
a
GIS chat room as of late.  Joe=20
 =20
Joe Noble=20
GIS/IS Coordinator=20
Tall Timbers Research Station=20
850-893-4153  x-232=20
 =20

=20

  _____ =20


From: shrug-l-admin@lists.dep.state.fl.us
[mailto:shrug-l-admin@lists.dep.state.fl.us] On Behalf Of Sykes, John
Sent: Friday, September 30, 2005 12:41 PM
To: Geographic Systems LLC; shrug-L@lists.dep.state.fl.us
Subject: RE: shrug-l: Question du jour=20
 =20
That's a good website.  From it I gather that if I want BOTH the =
distances
and azimuths to my sampling locations from the site center to be the =
most
accurate, the Azimuthal Equidistant projection is the best solution.=20
 =20
I came up with part of the rest of your solution on my own, however, I'm
having trouble rotating it through 360=B0.=20
 =20
Another solution I thought of, is setting up the sector lines in an =
AutoCad
file, then importing it into my map with a world file using the center =
point
and the intersection of the first radial with the 10 mile buffer ring as =
the
two points.=20

-- John=20
 =20
 =20

=20

  _____ =20


From: Geographic Systems LLC [mailto:info@geographicsystems.com]=20
Sent: Friday, September 30, 2005 12:19 PM
To: Sykes, John
Subject: RE: shrug-l: Question du jour=20
Hi John,=20
 =20
I will try to address the first part of your question (drawing lines out =
10
miles at 11.25 degree increments) and the last part (projections).  The
second part of your question (rhumb line from site point to sampling
location) may require more research.=20
 =20
Projections - definitely play a part in spatial accuarcy.  My guess is =
you
want a projection that preserves direction and distance.  A good place =
to
start is the summary tables at the bottom of the map projection poster,
http://erg.usgs.gov/isb/pubs/MapProjections/projections.html
<http://erg.usgs.gov/isb/pubs/MapProjections/projections.html> .=20
 =20
Drawing lines of specific distance and angle.  You can do this manually =
when
you sketch a line.  With Task set to Create New Feature and Target your =
line
feature class, click the sketch tool (pencil) and click on the first =
point of
your line.  Then right click away from the sketch and select "Direction" =
(or
CTRL-A) specify an angle (0 being horizontal - ie "11.25") and then =
right
click away from sketch again and select "Length" (or CTRL-L) ie "2mi" =
("mi"
for miles).  Or you can enter both the first time you right click by
selecting "Direction/Length" (or CTRL-G).  Check out online help for
"Creating segments using angles and lengths".=20
 =20
Miguel Garriga=20
Geographic Systems, LLC=20
www.geographicsystems.com <http://www.geographicsystems.com/> =20
407-261-0451=20
cel 321-279-6019=20

=20

  _____ =20


From: shrug-l-admin@lists.dep.state.fl.us
[mailto:shrug-l-admin@lists.dep.state.fl.us] On Behalf Of Sykes, John
Sent: Friday, September 30, 2005 10:21 AM
To: shrug-L@lists.dep.state.fl.us
Subject: shrug-l: Question du jour=20
 =20

Since we (collectively) solved the question I had yesterday, here's a =
new one
(put on your thinking caps - this one's tougher!).=20

Problem=20

When establishing environmental sampling locations around a site, we =
like to
ensure that the various distance buffer rings are evenly covered (e.g., =
in
this case:  "site boundary" to 2 miles, 2 - 5 miles and 5 - 10 miles.  =
This
is simple to create and check with the standard multiple buffer tool in
ArcToolbox.=20

However, we also like to check that the 16 compass sectors around the =
site
have also been evenly covered*.  These 22-1/2=B0 sectors are centered on =
N,
NNE, NE, ENE, E, ESE, SE, SSE, S, SSW, SW, WSW, W, WNW, NW and NNW.=20

So, what I would like to do is to create these sectors visually, by =
drawing a
line from the origin (an arbitrary "center" point on the site) out to 10
miles starting at 11-1/4=B0 compass heading, then rotate around =
22-1/2=B0 and
draw a line, until the 16 sectors are visually defined.=20

Any suggestions as how this can be done (easily)?  Previously, when =
doing
this in AutoCad, I used a radial copy command.  I haven't noticed a =
similar
command in ArcGIS.=20

Finally, once the sampling location is selected (and the lat/long of =
that
location determined), we need to be able to determine and list the =
distance
and azimuth (rhumb line) from that arbitrary "center" point on the site =
to
the sampling location and put it into the sampling location attributes =
table
(in the past, I've done this using the NGS "Inverse" program [fudging =
the
rhumb line from the great circle azimuths] using a batch file =
input/output)
for atmospheric dispersion modeling.  However, I don't see any easy way =
to do
this with ArcInfo (especially on a batch file basis).  Any suggestions?=20

Finally, food for thought -- How does the projection being used effect =
the
accuracy of all of this?  Normally we use Albers (equal area) or =
Mercator
(which gives the most accurate rhumb lines), but is there a better =
projection
to use to obtain accurate distances & azimuths?  I understand from the
reading I've done that these functions may be rather =
projection-sensitive.=20

-- John=20

*Sometimes if there is a prevailing wind bias, we'll bias our sampling
locations to that prevailing wind direction, but in the current case =
there is
no strong prevailing wind direction - the annual wind rose shows an =
almost
random 360=B0pattern.=20


Cynthia Brown
_______________________________________________ SHRUG-L mailing list
SHRUG-L@lists.dep.state.fl.us
http://lists.dep.state.fl.us/mailman/listinfo/shrug-l=20

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<BODY lang=3DEN-US vLink=3Dblue link=3Dblue>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D036153921-30092005><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>&nbsp; Also and in addition,&nbsp;folks that =
need less=20
Email traffic can receive their listgroup mail in 'digest mode', where =
you get=20
a&nbsp;snapshot daily (or so) of recent communications.&nbsp; Have a =
great=20
weekend, everybody!</FONT></SPAN></DIV><SPAN=20
class=3D036153921-30092005></SPAN><FONT face=3DArial><FONT =
color=3D#0000ff><FONT=20
size=3D2>Ren=E9<SPAN =
class=3D036153921-30092005></SPAN></FONT></FONT></FONT><BR>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> =
shrug-l-admin@lists.dep.state.fl.us=20
[mailto:shrug-l-admin@lists.dep.state.fl.us] <B>On Behalf Of </B>Miguel=20
Garriga<BR><B>Sent:</B> Friday, September 30, 2005 5:17 PM<BR><B>To:</B> =

shrug-L@lists.dep.state.fl.us<BR><B>Subject:</B> RE: shrug-l: question =
du jour=20
input<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I can =
sympathize with=20
wanting to reduce traffic in your Inbox. &nbsp;In general, responding to =
the=20
poster (not the list) and summarizing to the list is a good idea.&nbsp; =
I can=20
also understand the benefit of monitoring the traffic.&nbsp; Also, =
sometimes a=20
problem evolves and requires additional =
input.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">One solution =
is to=20
create a SHRUG mail folder, and set up a Rule to automatically move =
incoming=20
emails with =93shrug-l=94 in the subject to the SHRUG folder.&nbsp; This =
way you can=20
monitor incoming SHRUG emails (if you want) and keep your Inbox=20
clear.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">In Microsoft =
Outlook=20
(XP):<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">1. Create the =
SHRUG=20
mail folder.&nbsp; Right click on =93Personal Folders=94, select =93New =
Folder=94 call=20
it SHRUG.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">2. Set up a =
Rule to=20
move incoming SHRUG emails to it. &nbsp;Tools =96 Rules and Alerts, =
E-Mail Rules=20
tab, New Rule.&nbsp; Rules Wizard =96 =93Start creating a rule from a =
template=94,=20
Step 1 =93Move messages with specific words in the subject to a =
folder=94, Step 2 =96=20
click on =93specific words=94 and type in =93shrug-l=94, then click on =
=93specified=20
folder=94 and navigate to your new SHRUG folder.&nbsp; Hit next a couple =
of times,=20
name the rule, check the box to run the rule now if you want, and hit=20
Finish.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<DIV>
<P class=3DMsoNormal><EM><I><FONT face=3DArial color=3Dnavy =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">- Miguel=20
Garriga<o:p></o:p></SPAN></FONT></I></EM></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Geographic =
Systems=20
LLC<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT =

face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
<HR tabIndex=3D-1 align=3Dcenter width=3D"100%" SIZE=3D2>
</SPAN></FONT></DIV>
<P class=3DMsoNormal><B><FONT face=3DTahoma size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
shrug-l-admin@lists.dep.state.fl.us =
[mailto:shrug-l-admin@lists.dep.state.fl.us]=20
<B><SPAN style=3D"FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Cyndi=20
Brown<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, =
September=20
30, 2005 4:01 PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B>=20
lance.peterson@dot.state.fl.us; =
shrug-L@lists.dep.state.fl.us<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> shrug-l: question du =
jour=20
input</SPAN></FONT><o:p></o:p></P></DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<DIV>
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt"><FONT face=3D"Times =
New Roman"=20
size=3D3><SPAN style=3D"FONT-SIZE: 12pt">My op is, if you dont want to =
read it=20
delete it. ez! but some other people may just benefit from the back and =
forth=20
sharing, they may have similar probs. <BR><BR><BR>-----Original =
Message-----=20
<BR>From: lance.peterson@dot.state.fl.us <BR>Sent: Sep 30, 2005 1:21 PM =
<BR>To:=20
shrug-L@lists.dep.state.fl.us <BR>Subject: RE: shrug-l: Question du jour =

<BR><BR><BR></SPAN></FONT><FONT face=3Dsans-serif size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">I like the back and =
forth also.=20
This is really the best GIS newsgroup I belong too.</SPAN></FONT> =
<BR><BR><FONT=20
face=3Dsans-serif size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
sans-serif">At=20
least we don't have a problem with spam.</SPAN></FONT> <BR><FONT =
face=3Dsans-serif=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
sans-serif"><BR>Lance=20
Peterson<BR></SPAN></FONT><BR><BR><o:p></o:p></P>
<TABLE class=3DMsoNormalTable style=3D"WIDTH: 100%" cellPadding=3D0 =
width=3D"100%"=20
border=3D0>
  <TBODY>
  <TR>
    <TD=20
    style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; WIDTH: 40%; PADDING-TOP: 0.75pt"=20
    vAlign=3Dtop width=3D"40%">
      <P class=3DMsoNormal><B><FONT face=3Dsans-serif size=3D1><SPAN=20
      style=3D"FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; FONT-FAMILY: =
sans-serif">"Nonie=20
      Castro" &lt;nonie_castro@coxtarget.com&gt;</SPAN></FONT></B><FONT=20
      face=3Dsans-serif size=3D1><SPAN=20
      style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif"> =
</SPAN></FONT><BR><FONT=20
      face=3Dsans-serif size=3D1><SPAN=20
      style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Sent by:=20
      shrug-l-admin@lists.dep.state.fl.us</SPAN></FONT> <o:p></o:p></P>
      <P><FONT face=3Dsans-serif size=3D1><SPAN=20
      style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">09/30/2005 =
01:17=20
      PM</SPAN></FONT> <o:p></o:p></P></TD>
    <TD=20
    style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; WIDTH: 59%; PADDING-TOP: 0.75pt"=20
    vAlign=3Dtop width=3D"59%">
      <TABLE class=3DMsoNormalTable style=3D"WIDTH: 100%" =
cellPadding=3D0 width=3D"100%"=20
      border=3D0>
        <TBODY>
        <TR>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
            <P class=3DMsoNormal style=3D"TEXT-ALIGN: right" =
align=3Dright><FONT=20
            face=3Dsans-serif size=3D1><SPAN=20
            style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: =
sans-serif">To</SPAN></FONT><o:p></o:p></P></TD>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"=20
          vAlign=3Dtop>
            <P class=3DMsoNormal><FONT face=3Dsans-serif size=3D1><SPAN=20
            style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: =
sans-serif">&lt;shrug-L@lists.dep.state.fl.us&gt;</SPAN></FONT>=20
            <o:p></o:p></P></TD></TR>
        <TR>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
            <P class=3DMsoNormal style=3D"TEXT-ALIGN: right" =
align=3Dright><FONT=20
            face=3Dsans-serif size=3D1><SPAN=20
            style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: =
sans-serif">cc</SPAN></FONT><o:p></o:p></P></TD>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"=20
          vAlign=3Dtop>
            <P class=3DMsoNormal><FONT face=3D"Times New Roman" =
size=3D3><SPAN=20
            style=3D"FONT-SIZE: =
12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P></TD></TR>
        <TR>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
            <P class=3DMsoNormal style=3D"TEXT-ALIGN: right" =
align=3Dright><FONT=20
            face=3Dsans-serif size=3D1><SPAN=20
            style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: =
sans-serif">Subject</SPAN></FONT><o:p></o:p></P></TD>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"=20
          vAlign=3Dtop>
            <P class=3DMsoNormal><FONT face=3Dsans-serif size=3D1><SPAN=20
            style=3D"FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">RE: =
shrug-l:=20
            Question du =
jour</SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
      <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN =

      style=3D"FONT-SIZE: 12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P>
      <TABLE class=3DMsoNormalTable cellPadding=3D0 border=3D0>
        <TBODY>
        <TR>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"=20
          vAlign=3Dtop>
            <P class=3DMsoNormal><FONT face=3D"Times New Roman" =
size=3D3><SPAN=20
            style=3D"FONT-SIZE: =
12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P></TD>
          <TD=20
          style=3D"PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; =
PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"=20
          vAlign=3Dtop>
            <P class=3DMsoNormal><FONT face=3D"Times New Roman" =
size=3D3><SPAN=20
            style=3D"FONT-SIZE: =
12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
      <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN =

      style=3D"FONT-SIZE: =
12pt"><o:p></o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt"><FONT face=3D"Times =
New Roman"=20
size=3D3><SPAN style=3D"FONT-SIZE: 12pt"><BR><BR><BR></SPAN></FONT><FONT =

face=3D"Trebuchet MS" size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'">If we are taking =
a vote - I=20
don't mind the back and forth in real time. =
</SPAN></FONT><o:p></o:p></P>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT =

face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
<HR align=3Dcenter width=3D"100%" SIZE=3D2>
</SPAN></FONT></DIV>
<P class=3DMsoNormal><B><FONT face=3DTahoma size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
shrug-l-admin@lists.dep.state.fl.us =
[mailto:shrug-l-admin@lists.dep.state.fl.us]=20
<B><SPAN style=3D"FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Joe =
Noble<B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Sent:</SPAN></B> Friday, September 30, =
2005 1:06=20
PM<B><SPAN style=3D"FONT-WEIGHT: bold"><BR>To:</SPAN></B> Sykes, John; =
Geographic=20
Systems LLC; shrug-L@lists.dep.state.fl.us<B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Subject:</SPAN></B> RE: shrug-l: =
Question du=20
jour</SPAN></FONT><BR><BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN =

style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I would like =
to suggest=20
some sort of protocol that folks post their question, once, then those =
that have=20
a possible solution contact the person directly not numerous e-mails to =
the=20
entire user list. &nbsp;After a solution has been decided, the original =
person=20
posting the question could sum the solutions in one e-mail back to the =
board.=20
&nbsp;Sorry but my e-mail has been looking like a GIS chat room as of =
late.=20
&nbsp;Joe</SPAN></FONT> <BR><FONT face=3DArial color=3Dnavy =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT>=20
<BR><FONT color=3Dnavy><SPAN style=3D"COLOR: navy">Joe Noble =
</SPAN></FONT><BR><FONT=20
color=3Dnavy><SPAN style=3D"COLOR: navy">GIS/IS Coordinator =
</SPAN></FONT><BR><FONT=20
color=3Dnavy><SPAN style=3D"COLOR: navy">Tall Timbers Research =
Station</SPAN></FONT>=20
<BR><FONT color=3Dnavy><SPAN style=3D"COLOR: navy">850-893-4153=20
&nbsp;x-232</SPAN></FONT> <BR><FONT face=3DArial color=3Dnavy =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT>=20
<o:p></o:p></P>
<P class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT=20
face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT =

face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
<HR align=3Dcenter width=3D"100%" SIZE=3D2>
</SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><BR></SPAN></FONT><B><FONT face=3DTahoma =
size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
shrug-l-admin@lists.dep.state.fl.us =
[mailto:shrug-l-admin@lists.dep.state.fl.us]=20
<B><SPAN style=3D"FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Sykes, =
John<B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Sent:</SPAN></B> Friday, September 30, =
2005 12:41=20
PM<B><SPAN style=3D"FONT-WEIGHT: bold"><BR>To:</SPAN></B> Geographic =
Systems LLC;=20
shrug-L@lists.dep.state.fl.us<B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Subject:</SPAN></B> RE: shrug-l: =
Question du=20
jour</SPAN></FONT> <BR>&nbsp; <BR><FONT face=3DArial color=3Dblue =
size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; COLOR: blue; FONT-FAMILY: Arial">That's a =
good=20
website. &nbsp;From it I gather that if I want BOTH the distances and =
azimuths=20
to my sampling locations from the site center to be the most accurate, =
the=20
Azimuthal Equidistant projection is the best solution.</SPAN></FONT> =
<BR>&nbsp;=20
<BR><FONT face=3DArial color=3Dblue size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; COLOR: blue; FONT-FAMILY: Arial">I came up =
with part=20
of the rest of your solution on my own, however, I'm having trouble =
rotating it=20
through 360=B0.</SPAN></FONT> <BR>&nbsp; <BR><FONT face=3DArial =
color=3Dblue=20
size=3D4><SPAN style=3D"FONT-SIZE: 13.5pt; COLOR: blue; FONT-FAMILY: =
Arial">Another=20
solution I thought of, is setting up the sector lines in an AutoCad =
file, then=20
importing it into my map with a world file using the center point and =
the=20
intersection of the first radial with the 10 mile buffer ring as the two =

points.</SPAN></FONT> <o:p></o:p></P>
<P><B><FONT face=3D"Monotype Corsiva" size=3D5><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 18pt; FONT-FAMILY: 'Monotype =
Corsiva'">--=20
John</SPAN></FONT></B> <BR>&nbsp; <BR>&nbsp; <o:p></o:p></P>
<P class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT=20
face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT =

face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
<HR align=3Dcenter width=3D"100%" SIZE=3D2>
</SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><BR></SPAN></FONT><B><FONT face=3DTahoma =
size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
Geographic Systems LLC [mailto:info@geographicsystems.com] <B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Sent:</SPAN></B> Friday, September 30, =
2005 12:19=20
PM<B><SPAN style=3D"FONT-WEIGHT: bold"><BR>To:</SPAN></B> Sykes, =
John<B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Subject:</SPAN></B> RE: shrug-l: =
Question du=20
jour</SPAN></FONT> <BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hi =
John,</SPAN></FONT>=20
<BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT>=20
<BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I will try to =
address=20
the first part of your question (drawing lines out 10 miles at 11.25 =
degree=20
increments) and the last part (projections). &nbsp;The second part of =
your=20
question (rhumb line from site point to sampling location) may require =
more=20
research.</SPAN></FONT> <BR><FONT face=3DArial color=3Dnavy =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT>=20
<BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Projections =
=96=20
definitely play a part in spatial accuarcy. &nbsp;My guess is you want a =

projection that preserves direction and distance. &nbsp;A good place to =
start is=20
the summary tables at the bottom of the map projection poster, =
</SPAN></FONT><A=20
href=3D"http://erg.usgs.gov/isb/pubs/MapProjections/projections.html"><FO=
NT=20
face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">http://erg.usgs.gov/isb/pubs/MapProjections/projections.html</SPAN=
></FONT></A><FONT=20
face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">.=20
</SPAN></FONT><BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT>=20
<BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Drawing lines =
of=20
specific distance and angle. &nbsp;You can do this manually when you =
sketch a=20
line. &nbsp;With Task set to Create New Feature and Target your line =
feature=20
class, click the sketch tool (pencil) and click on the first point of =
your line.=20
&nbsp;Then right click away from the sketch and select =93Direction=94 =
(or CTRL-A)=20
specify an angle (0 being horizontal =96 ie =9311.25=94) and then right =
click away=20
from sketch again and select =93Length=94 (or CTRL-L) ie =932mi=94 =
(=93mi=94 for miles).=20
&nbsp;Or you can enter both the first time you right click by selecting=20
=93Direction/Length=94 (or CTRL-G). &nbsp;Check out online help for =
=93Creating=20
segments using angles and lengths=94.</SPAN></FONT> <BR><FONT =
face=3DArial=20
color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT>=20
<BR><I><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-STYLE: italic; FONT-FAMILY: =
Arial">Miguel=20
Garriga</SPAN></FONT></I> <BR><FONT face=3DArial color=3Dnavy =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Geographic =
Systems,=20
LLC</SPAN></FONT> <BR><A =
href=3D"http://www.geographicsystems.com/"><FONT=20
face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">www.geographicsystems.com</SPAN></FONT></A>=20
<BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">407-261-0451</SPAN></FONT>=20
<BR><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">cel=20
321-279-6019</SPAN></FONT> <o:p></o:p></P>
<P class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT=20
face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT =

face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
<HR align=3Dcenter width=3D"100%" SIZE=3D2>
</SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><BR></SPAN></FONT><B><FONT face=3DTahoma =
size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
shrug-l-admin@lists.dep.state.fl.us =
[mailto:shrug-l-admin@lists.dep.state.fl.us]=20
<B><SPAN style=3D"FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Sykes, =
John<B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Sent:</SPAN></B> Friday, September 30, =
2005 10:21=20
AM<B><SPAN style=3D"FONT-WEIGHT: bold"><BR>To:</SPAN></B>=20
shrug-L@lists.dep.state.fl.us<B><SPAN=20
style=3D"FONT-WEIGHT: bold"><BR>Subject:</SPAN></B> shrug-l: Question du =

jour</SPAN></FONT> <BR>&nbsp; <o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">Since we (collectively) =
solved the=20
question I had yesterday, here's a new one (put on your thinking caps - =
this=20
one's tougher!).</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">Problem</SPAN></FONT>=20
<o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">When establishing =
environmental=20
sampling locations around a site, we like to ensure that the various =
distance=20
buffer rings are evenly covered (e.g., in this case: &nbsp;"site =
boundary" to 2=20
miles, 2 - 5 miles and 5 - 10 miles. &nbsp;This is simple to create and =
check=20
with the standard multiple buffer tool in ArcToolbox.</SPAN></FONT>=20
<o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">However, we also like to =
check=20
that the 16 compass sectors around the site have also been evenly =
covered*.=20
&nbsp;These 22-1/2=B0 sectors are centered on N, NNE, NE, ENE, E, ESE, =
SE, SSE, S,=20
SSW, SW, WSW, W, WNW, NW and NNW.</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">So, what I would like to =
do is to=20
create these sectors visually, by drawing a line from the origin (an =
arbitrary=20
"center" point on the site) out to 10 miles starting at 11-1/4=B0 =
compass heading,=20
then rotate around 22-1/2=B0 and draw a line, until the 16 sectors are =
visually=20
defined.</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">Any suggestions as how =
this can be=20
done (easily)? &nbsp;Previously, when doing this in AutoCad, I used a =
radial=20
copy command. &nbsp;I haven't noticed a similar command in =
ArcGIS.</SPAN></FONT>=20
<o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">Finally, once the =
sampling=20
location is selected (and the lat/long of that location determined), we =
need to=20
be able to determine and list the distance and azimuth (rhumb line) from =
that=20
arbitrary "center" point on the site to the sampling location and put it =
into=20
the sampling location attributes table (in the past, I've done this =
using the=20
NGS "Inverse" program [fudging the rhumb line from the great circle =
azimuths]=20
using a batch file input/output) for atmospheric dispersion modeling.=20
&nbsp;However, I don't see any easy way to do this with ArcInfo =
(especially on a=20
batch file basis). &nbsp;Any suggestions?</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">Finally, food for =
thought -- How=20
does the projection being used effect the accuracy of all of this?=20
&nbsp;Normally we use Albers (equal area) or Mercator (which gives the =
most=20
accurate rhumb lines), but is there a better projection to use to obtain =

accurate distances &amp; azimuths? &nbsp;I understand from the reading =
I've done=20
that these functions may be rather projection-sensitive.</SPAN></FONT>=20
<o:p></o:p></P>
<P><B><FONT face=3D"Monotype Corsiva" size=3D5><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 18pt; FONT-FAMILY: 'Monotype =
Corsiva'">--=20
John</SPAN></FONT></B> <o:p></o:p></P>
<P><FONT face=3DArial size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: Arial">*Sometimes if there is a =

prevailing wind bias, we'll bias our sampling locations to that =
prevailing wind=20
direction, but in the current case there is no strong prevailing wind =
direction=20
- the annual wind rose shows an almost random =
360=B0pattern.</SPAN></FONT>=20
<o:p></o:p></P></DIV></DIV><PRE>
Cynthia Brown</PRE>_______________________________________________ =
SHRUG-L=20
mailing list SHRUG-L@lists.dep.state.fl.us=20
http://lists.dep.state.fl.us/mailman/listinfo/shrug-l </BODY></HTML>

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