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<font size="-2"><font face="Verdana">Hi Parv, <br>
in QGIS you can extend the list of tools with the python plugin.
<br>
Go in the Menu Plugins/Manage and install Plugins.<br>
A dialogue opens and you can search the web for available
plugins for QGIS.<br>
If you search for "buffer" you should find 4 relevant plugins.
Depends on the repositories you have in your plugins-list.<br>
You can extend this list in the settings menu.<br>
The buffer tools are: Buffer by percentage, Multi Ring buffer,
Multi-distance buffer, Wedge buffer processing algorithm.<br>
If you install MMQGIS Toolbox you will find another tool that
creates buffers.<br>
hope this helps<br>
Dieter<br>
</font></font><br>
<div class="moz-cite-prefix">Am 22.05.2017 um 17:51 schrieb Parv
Aggarwal:<br>
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<p class="MsoNormal">Hi QGIS Community,<o:p></o:p></p>
<p class="MsoNormal">I’m Parv, an analytics intern at the Latino
Community Credit Union here in North Carolina. I’m tasked with
finding and using GIS software to visualize both US Census
data and our membership data at micro levels to determine best
locations for expansions. As per my instructions, this means
being able to:<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="color:#1F497D"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><!--[endif]--><span
style="color:#1F497D">Visualize Latino population by smaller
units than zip codes. We have worked with Census tracts in
the past and that is ideal, but there are even smaller areas
with population data, like census blocks. If we can see in
a map where the higher number of Latinos live and also see
the streets so that we can imagine potential locations and
draw areas around them, we could identify optimal locations.<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="color:#1F497D"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><!--[endif]--><span
style="color:#1F497D">If we get a proposal for a location,
for example a realtor contacts us and says “I have a great
place for rent at 1309 Cúcuta Dr,” we should be able to
enter the address in the software and define an area around
it, draw that area and know how many Latinos live there.
The areas could be circles, free shape forms, circles cut by
major highways or barriers we would think people wouldn’t
cross…<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="color:#1F497D"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><!--[endif]--><span
style="color:#1F497D">Of course we should be able to add our
own data to the software, like those addresses of our
current members, and be able to look at, say, total balances
of members who live in a defined area.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have installed QGIS and am currently
exploring its capabilities via the user guide/training manual.
I know I first have to do a join on census csv population data
and block shapefiles. Assuming I’m able to do that, I am
trying to find relevant sections that would show me how to do
this micro level aggregation of population data. I believe in
ArcGIS this is called “create buffers around a point” but I am
not sure if this is the relevant way to do it in QGIS or not.
I searched for buffers in the training manual but I still
can’t tell if it means the same thing or is relevant for my
purposes. I’m also going through the vector analysis and
processing sections but end up getting lost on what’s relevant
and what’s not. I would greatly appreciate it if someone could
guide me on being more effective at looking at the relevant
features for the above needs, as I am unfortunately new to
using in-depth GIS softwares like this.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Sincerely<o:p></o:p></p>
<p class="MsoNormal">Parv<o:p></o:p></p>
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