mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-06 00:05:02 -05:00
33 lines
3.0 KiB
HTML
33 lines
3.0 KiB
HTML
<html>
|
|
<head><link rel="stylesheet" type="text/css" href="help.css" /></head>
|
|
<body>
|
|
<h1 class='module'>Thin Plate Spline (TIN)</h1>
|
|
<div class='author'>(c) 2006 by O.Conrad</div>
|
|
<div class='description'>Creates a 'Thin Plate Spline' function for each triangle of a TIN and uses it for subsequent gridding. The TIN is internally created from the scattered data points input. The 'Neighbourhood' option determines the number of points used for the spline generation. 'Immediate neighbourhood' includes the points of the triangle as well as the immediate neighbour points. 'Level 1' adds the neighbours of the immediate neighbourhood and 'level 2' adds the neighbours of 'level 1' neighbours too. A higher neighbourhood degree reduces sharp breaks but also increases the computation time. <br/>
|
|
<br/>
|
|
References:<br/>
|
|
- Donato G., Belongie S. (2002): 'Approximation Methods for Thin Plate Spline Mappings and Principal Warps', In Heyden, A., Sparr, G., Nielsen, M., Johansen, P. (Eds.): 'Computer Vision - ECCV 2002: 7th European Conference on Computer Vision, Copenhagen, Denmark, May 28-31, 2002', Proceedings, Part III, Lecture Notes in Computer Science. Springer-Verlag Heidelberg; pp.21-31.<br/>
|
|
<br/>
|
|
- Elonen, J. (2005): 'Thin Plate Spline editor - an example program in C++', <a target="_blank" href="http://elonen.iki.fi/code/tpsdemo/index.html">http://elonen.iki.fi/code/tpsdemo/index.html</a>.<br/>
|
|
</div>
|
|
<h2>Parameters</h2>
|
|
<dl class='parameters'>
|
|
<dt>Points <div class='type'>Input Shapes</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Attribute <div class='type'>Table field</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Target Grid <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: user defined, grid</div></dd>
|
|
<dt>Regularisation <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Neighbourhood <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: immediate, level 1, level 2</div></dd>
|
|
<dt>Add Frame <div class='type'>Boolean</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Left <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Right <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Bottom <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Top <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Cellsize <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Columns <div class='type'>Integer</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Rows <div class='type'>Integer</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Grid <div class='type'>Output Data Object</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Grid system <div class='type'>Grid system</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Grid <div class='type'>Output Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
</dl>
|
|
</body></html>
|