End of shape recognition documentation

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rnc 2012-04-17 09:32:16 +00:00
parent 10957df41e
commit d25a037763
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@ -9,11 +9,24 @@ This tool allows you to create geometrical shapes automatically out from picture
\b Example:
Détection of the cost line on a nautical chart
Detection of the cost line on a nautical chart
\image html contour_detection_example2.png
To use the <b>Shape recogition</b> tool you have to \ref import_picture_page "Import a picture" in the view first.Then you can choose to create either <b>contours</b> or <b>corners</b> out from this picture.
To use the <b>Shape recogition</b> tool:
<ol>
<li>\ref import_picture_page "Import a picture" in the view</li>
<li> Select <b>New Entity -> Shape Recognition</b> or click on \image html feature_detect.png </li>
</ol>
Then you can choose to create either <b>contours</b> or <b>corners</b> out from this picture.
\n
To create <b>Contours</b> :
@ -25,8 +38,43 @@ To create <b>Contours</b> :
<li> Find a zone in the picture which color is representative of the zone you want to find the frontier of. Draw a rectangle on it to take a <b>Snapshot</b>.</li>
<li> Apply </li>
The \b Result will be a \b Compound of \b Edges or \b Wires from which you can explode the desired edges or wires.
\image html feature_detection_dlg.png
<b> Output type </b> :
<ul>
<li> \b Spline : each contour will be a single \b edge based on a B-Spline curve</li>
<li> \b Polyline : each contour will be a wire made of lines (i.e. a \b Polygon)</li>
</ul>
\note It's better to use the \b Spline output type unless you want to find the frontier of a polygon (rectangle ...)
</ol>
\n
To create <b>Corners</b> :
<ol>
<li> In the <b>Picture</b> field select a previously imported picture.</li>
<li> Apply </li>
The \b Result will be a \b Compound of \b Vertices
\image html feature_detection_dlg2.png
</ol>
*/