Re: constructing a continuous region from 2D data using interpolation or
- To: mathgroup at smc.vnet.net
- Subject: [mg131401] Re: constructing a continuous region from 2D data using interpolation or
- From: Sseziwa Mukasa <mukasa at gmail.com>
- Date: Thu, 18 Jul 2013 03:03:07 -0400 (EDT)
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- Delivered-to: l-mathgroup@wolfram.com
- Delivered-to: mathgroup-outx@smc.vnet.net
- Delivered-to: mathgroup-newsendx@smc.vnet.net
- References: <20130717054903.D828E69BD@smc.vnet.net>
You could try ConvexHull:
(Debug) In[13]:= Needs["ComputationalGeometry`"]
convexHull = ConvexHull[data]
Graphics[Polygon[data[[#]] & /@ convexHull]]
(Debug) Out[14]= {207, 74, 161, 185, 186, 187, 180, 172, 162, 150, 137, 123, 108, 92, 75, 57, \
39, 1, 208, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, \
201, 202, 203, 204, 205, 206}
On Jul 17, 2013, at 1:49 AM, ommair at uok.edu.pk wrote:
> As shown in an image there are many data points in a region and these points are in the form of {{x1,y1},{x2,y2},{x3,y3},{x4,y4}......} and assume z=0 for all data. I want to construct a whole continuous region from these points i.e wants to cover the area between points with proper boundary of the region. Like for example we can draw a curve from data points using interpolation cant we construct a continuous region or plane from data points in my image. Or suggest me any other method from which I can get continuous region from my data.
>
> data= {{0.939922, 0.0109069}, {0.941922, 0.0109069}, {0.943922, =
0.0109069}, {0.945922, 0.0109069}, {0.947922, 0.0109069}, {0.949922, =
0.0109069}, {0.951922, 0.0109069}, {0.953922, 0.0109069}, {0.955922, =
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0.0109069}, {0.963922, 0.0109069}, {0.965922, 0.0109069}, {0.967922, =
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0.0050858}=
> , {0.967646, 0.0050858}, {0.968646, 0.0050858}, {0.969646, 0.0050858}, =
{0.9=
> 70646, 0.0050858}, {0.971646, 0.0050858}, {0.972646, 0.0050858}, =
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0.005=
> 0858}}
>
- References:
- constructing a continuous region from 2D data using interpolation or
- From: ommair@uok.edu.pk
- constructing a continuous region from 2D data using interpolation or