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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: GISList: Variable Width Buffering? |
| Date: |
04/04/2003 02:25:01 AM |
| From: |
Jayachandran Mani |
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Hi,
I remember when i was working in ArcInfo 3.5 few years
back, I used the variable width buffering. i had added
the road width as 2m, 3m, 4m etc as I got from the
field in the AAT table. Then i created the buffer with
the buffer item as the item name of the road width. I
got nice buffer of road centerlines. I could easily
show the road with different widths. There was no need
for creating buffer separately and joining, clipping
etc., But then thereafter I have not created variable
buffers in 8.x and all.
I understand the same options of variable buffering is
available in the arcinfo workstation also
Jay
--- Smith Travis G Civ 56 RMO/GIS
<Travis.Smith@luke.af.mil> wrote:
> Hi Listers,
>
> Does anyone out there have experience in conducting
> variable width buffering
> using ArcView 3.x and/or ArcGIS 8.x? I have a
> project where I need to create
> some buffers from simple existing line segments.
> However, the resulting
> buffers require different widths from segment to
> segment. Additionally, the
> widths vary from segment to segment on the right and
> left sides of the arc
> respectively. It appears, these programs handle
> uniform width buffering well
> via the Buffer Wizards, however I don't see any
> tools for variable widths.
>
> The only idea I can come up with is to create a
> bunch of different little
> buffers per segment, and then perform some clipping
> and appending (creating
> a lot more work). It also appears that the ESRI
> 3.x/8.x products also no
> longer offer the parameter selection of selecting
> 'Left' vs. 'Right' when
> buffering the segment: as ArcInfo Workstation does.
>
> Here's an example of a single route (line):
>
> Arc Segment/Buffer Distance
> Point A to Point B: 5 miles
> Point B to Point C: 4 miles
> Point C to Point D: 2.5 miles on Left & 4 miles on
> Right
> Point D to Point E: 3 miles
> Point E to Point F: 5 miles on Left & 2.5 miles on
> Right
> Point F to Point G: 4 miles
>
> Thanks in advance for any ideas or suggestions
> anyone might have.
>
> Travis
>
>
>
>
>
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