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  • 34 votes cast
Dec
17
comment min function not found compiling osrm
I finally compiled OSRM in a Mac OS X machine. So, I didn't continue with this way. But I think DennisL found the problem. It makes sense.
Dec
1
comment What PostGIS [topology] provided tools may be used for data quality assurance?
Oh, thanks for that. Much better title now.
Dec
1
comment Doubts about how pgRouting topology is built and how flexible it is
Yes, probably. But I think I have a better idea now, after reading the documentation and make a few tests. It seems that there's no automatic way of doing this. It's a question about how you define your data.
Nov
30
comment Is there an open source directions webclient for pgRouting like the directions API from Google?
Happy to hear that. I hope you can use it.
Nov
30
comment Doubts about how pgRouting topology is built and how flexible it is
About the different level intersections, I think it's explained here: goo.gl/ojGmuH
Nov
30
comment Doubts about how pgRouting topology is built and how flexible it is
Ok, many thanks. I just have one doubt, about the different level intersection: You say "you'll have to make sure that there are no nodes within the specified tolerance". But the point is I start with just a few lines, and I want pgr_createTopology that do the job, and create the necessary vertices to connect my network. I don't know anything about nodes. I just want to specify in some way: "Ey, do you see that point where those 2 lines cross? That's not an intersection. They're at different height. Please, don't create a node there". But I think the response is here goo.gl/ojGmuH
Nov
30
comment Doubts about how pgRouting topology is built and how flexible it is
Thanks for your responses. I just keep a doubt. About 1 and 2, my point is that I just start with a bunch of lines in my table. One per row. I guess pgr_createTopology works creating a node per each intersection between lines. So, it decides where the nodes are. And if I want to represent that two lines intersect at a different level, it shouldn't create a node at that point, because there's no real intersection (example: a bridge over a motorway). I don't think it can do it.
Nov
30
comment Doubts about how pgRouting topology is built and how flexible it is
You're right. I've already changed, keeping the original questions at the end.
Nov
27
comment min function not found compiling osrm
I've installed boost 1.49 and later boost 1.55, but looks that boost 1.49 is first detected. And I didn't pass any argument to CMake
Nov
27
comment min function not found compiling osrm
That change caused a lot of "undefined reference to boost..." errors. I guess boost is not properly found (strange, because I ran a simple C++ code to show boost version and worked). Anyway, changing the sources in order to compile sounds odd for me. Thanks anyway.
Nov
25
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
Ok. So, you stick with ogr2ogr. If you installed GDAL properly (and looks that you did, because PostGIS found it), ogr2ogr is installed. Probably at /usr/local/bin. Check if that path is added to your system's path. And ensure where ogr2ogr is with: sudo find / -name ogr2ogr
Nov
25
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
You don't need FWTools to use ogr2ogr if you compiled GDAL. It's included. You may need to add the path where the new GDAL installed the binaries (gdalinfo, gdal_translate, ogr2ogr...) to system path, if your problem is those commands are not found. About pgsql2shp, is not related with GDAL, and as long as I know, it's not packed with FWTools. It's a PostGIS tool. Which version of PostGIS are you using?
Nov
22
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
'gdal-config --prefix' tells you the PATH where default GDAL library (1.6 in your case) is installed. Probably, $HOME/FWTools. You can get rid of that folder. Once done, the default GDAL should be 1.9. You may need to update your PATH variable, to ensure it doesn't contain references to the deleted FWTools folder.
Nov
21
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
OMG, absolutely. I've just fixed it. That was a silly and annoying mistake. Sorry for that.
Nov
21
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
As afalciano said, you can't use QGIS 2.0 yet. I didn't port the plugin to QGIS 2.0. I want to do it before the end of this year. And yes, you should use the last version of GDAL from trunk. It contains some improvements to PostGIS Raster driver.
Nov
20
comment PostGIS: Calculate the length of just the portion of linestring that intersect with a polygon
Mmm... same problems. I've added my real data and the queries I've executed. So, if you want to try...
Nov
19
comment PostGIS: Calculate the length of just the portion of linestring that intersect with a polygon
Thanks! I've updated the question. I'm closer now.
Nov
1
comment Create a band mask based on pixel locations, not in pixel values
Well, I guess it's time to learn how to use GRASS. BTW, many thanks!
Nov
1
comment Create a band mask based on pixel locations, not in pixel values
I'm a novice in GRASS, but this looks like similar: grass.osgeo.org/grass64/manuals/r.clump.html
Nov
1
comment Create a band mask based on pixel locations, not in pixel values
Wow! That looks exactly what I'm looking for. With which tool are you able to do it? QGIS? I assume that, but I can't see the option in QGIS 2.0.