root / trunk / extensions / extGeoProcessing / config / docs / com.iver.cit.gvsig.geoprocess.impl.spatialjoin.SpatialJoinGeoprocessPlugin / description_en_us.html @ 29936
History | View | Annotate | Download (1.3 KB)
| 1 |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|---|---|
| 2 |
<html><head> |
| 3 |
<meta http-equiv="CONTENT-TYPE" content="text/html; charset=windows-1252"> |
| 4 |
<title>Spatial Join</title></head> |
| 5 |
|
| 6 |
<body dir="ltr" lang="es-ES"> |
| 7 |
<p>
|
| 8 |
<font color="#800000"> |
| 9 |
<b>Spatial join</b> |
| 10 |
</font>
|
| 11 |
</p>
|
| 12 |
<p>
|
| 13 |
This tool <span style="font-style: italic;">transfers attribute table field values</span> from a source layer to a target layer, in a manner similar to an <span style="font-style: italic;">SQL join</span> operation but using a <span style="font-style: italic;">spatial criterion</span> (intersection or proximity). |
| 14 |
</p>
|
| 15 |
<p>
|
| 16 |
If <span style="font-style: italic;">intersection</span> is chosen as the transfer criterion, each feature of the target layer can intersect |
| 17 |
many features of the source layer (<span style="font-style: italic;">1:n</span> spatial relationship). |
| 18 |
</p>
|
| 19 |
<p>
|
| 20 |
If proximity (<span style="font-style: italic;">nearest neighbour</span>) is selected, then a 1:1 relationship will be established. |
| 21 |
</p>
|
| 22 |
<p>The user can select different <span style="font-style: italic;">methods</span> (mean, minimum, maximum, sum) for resolving <span style="font-style: italic;">1:n</span> relationships between numeric attribute table fields. |
| 23 |
</p>
|
| 24 |
|
| 25 |
<p>
|
| 26 |
<img src="spatialjoindesc.png" name="Imagen1" align="left" border="0"> |
| 27 |
</p>
|
| 28 |
|
| 29 |
</body></html> |