<div class="gmail_quote">Hola,<br><br>Soy português pero mi espagnol es muy raro. Por esto, coloco mi pergunta en inglês. Las respuestas pueden venir en espagnol.<br><br>I'm trying to make network analysis using openstreetmap data. I've downloaded shapefile from CloudMade and processed it in order to compute time costs and to normalize road type configuration according to my needs. I've made a "clean layer topology first" and after generated a network topology with some fuzzy tolerance. After that i was able to calculate a simple route between two stops without problem. <br>
<br><img title="Picture 1.png" alt="Picture 1.png" src="cid:ii_1291d1d1ffd04d7f"><br><br><br>After that i want to calculate another route between two stops that will not cross the previous route. Obviously i had to add barriers. <br>
<br><img title="Picture 3.png" alt="Picture 3.png" src="cid:ii_1291d1f91f7e7c4c" height="429" width="458"><br><br><br>The thing is, that the network is not giving me the shortest path. At least i think, the shortest path would be something like (i+m sure that all roads that fall within the blue line are connected):<br>
<br><img title="Picture.png" alt="Picture.png" src="cid:ii_1291d214c0d52f73" height="423" width="452"><br><br><br>When i add several more barriers to control this situation, bigger paths are calculated. If i keep adding barriers to avoid these routes then i come to a situation where gvSig says it is impossible to calculate the route. <br>
<br><img title="Picture 5.png" alt="Picture 5.png" src="cid:ii_1291d233345155bb" height="373" width="488"><br><br>How can i fix this? Do you have any suggestions??<br>Thanks in advance!<br>Cheers,<br>Hugo<br><br><font color="#888888">
</font><br></div>-- <br>Hugo Martins<br>FMV-UTL<br>CIISA-Epidemiologia e Saúde Pública Veterinária<br>Av. da Universidade Técnica<br>1300-477 Lisboa<br>N 38°42'49.54", W 9°11'43.42"<br>