Hi Markus, Thanks alot for your help :)
v.out.ascii on my streets3d gave me : GRASS 6.3.0RC1 (nc_spm_06):/usr/include > v.out.ascii streets3d format=standard | head -50 ORGANIZATION: NC OneMap DIGIT DATE: Nov 7 6 DIGIT NAME: helena MAP NAME: Wake County roads and streets (lines map) MAP DATE: Tue Nov 7 20:04:56 2006 MAP SCALE: 1 OTHER INFO: ZONE: 0 MAP THRESH: 0.000000 VERTI: L 4 1 625304.64965949 214113.54427121 110.63827327 625301.19968723 214078.52097425 110.53516127 625299.48976068 214056.17660237 110.46902923 625299.2898505 214050.64903112 110.45167028 1 1 L 4 1 670282.21275792 227601.93222423 77.30562497 670374.57454089 227594.34858999 77.75031661 670445.44075096 227585.49027471 78.06294622 670480.4596783 227576.2012396 78.16904676 1 2 L 2 1 640859.16790248 227574.18138204 101.43534006 640807.37009659 227572.59333673 102.82421757 1 3 L 3 1 641027.66472275 226005.86943382 101.61656721 641029.28632052 226018.73890562 101.82055249 641027.87805392 226096.09665666 103.0005327 1 4 L 4 1 650813.12379857 226001.6206011 63.07461956 650817.8816922 226025.06362068 62.85028877 650825.19690683 226054.93404143 62.54284598 650837.89284223 226126.89484171 61.86218497 1 5 L 4 1 657988.42877208 239117.08507621 101.59256415 657999.49858403 239106.02572014 101.24871757 658006.91367573 239097.03756468 105.86902948 658014.55349082 239087.3753951 105.64730814 1 6 L 10 1 658852.96011106 240354.2803688 123.12467481 658856.76542719 240347.57596483 123.13784494 658860.93295374 240341.59644987 123.16069965 658865.82536929 240335.97914532 123.1962029 658871.44267384 240331.08672976 123.24659675 658878.14707781 240326.01313098 123.31148144 I followed your instructions (except the nviz one - since I do not have it installed) and this is the v.ascii on the new streets3d_new level I recreated using your method : GRASS 6.3.0RC1 (nc_spm_06):/usr/include > v.out.ascii streets3d_new format=standard | head -50 ORGANIZATION: NC OneMap DIGIT DATE: Nov 7 6 DIGIT NAME: helena MAP NAME: Wake County roads and streets (lines map) MAP DATE: Tue Nov 7 20:04:56 2006 MAP SCALE: 1 OTHER INFO: ZONE: 0 MAP THRESH: 0.000000 VERTI: L 4 1 625304.64965949 214113.54427121 111.15730809 625301.19968723 214078.52097425 111.15730809 625299.48976068 214056.17660237 111.15730809 625299.2898505 214050.64903112 111.15730809 1 1 L 4 1 670282.21275792 227601.93222423 80.19490021 670374.57454089 227594.34858999 80.19490021 670445.44075096 227585.49027471 80.19490021 670480.4596783 227576.2012396 82.07733239 1 2 L 2 1 640859.16790248 227574.18138204 107.09736996 640807.37009659 227572.59333673 107.09736996 1 3 L 3 1 641027.66472275 226005.86943382 102.38978817 641029.28632052 226018.73890562 103.15115211 641027.87805392 226096.09665666 107.85202063 1 4 L 4 1 650813.12379857 226001.6206011 67.55276255 650817.8816922 226025.06362068 67.11642843 650825.19690683 226054.93404143 65.72167216 650837.89284223 226126.89484171 65.72167216 1 5 L 4 1 657988.42877208 239117.08507621 110.0050774 657999.49858403 239106.02572014 109.75625556 658006.91367573 239097.03756468 111.837334 658014.55349082 239087.3753951 111.66560996 1 6 L 10 1 658852.96011106 240354.2803688 115.85651881 658856.76542719 240347.57596483 115.85651881 658860.93295374 240341.59644987 115.85651881 658865.82536929 240335.97914532 115.85651881 658871.44267384 240331.08672976 115.85651881 658878.14707781 240326.01313098 115.85651881 As you can see the Z coordinate did change. However, the problem is that when I exported this layer to a shape file to load it from QGis, and when I exported this to a PostGIS database there is no showings of the Altitude layer. Technically I do not need to see the altitude however it is important that altitude can be read since I need to make routing using the Altitude constraint. Any help will be extremely appreciated Thanks for your help already :) On 1/11/08, Markus Neteler <[EMAIL PROTECTED]> wrote: > > On Jan 5, 2008 6:32 PM, Matthew Pulis <[EMAIL PROTECTED]> wrote: > > > > > > > > > > Hi, > > > > > > > > First of all Happy New Year to all on the list J > > > > > > > > I am trying to build a 3D Street Network, thus where the streets have > > elevation so I can do routing depending on slope level. > > > > > > > > I am using the GRASS Book Dataset of North Carolina. > > > > > > > > I tried to combine : streets_wake and elev_state_500m layers together, > using > > the v.drape : > > > > v.drape in=streets_wake rast=elev_state_500m method=bilinear > out=streets3d > > > > > > > > But to no avail. This is the v.info on streets3d : > > > > > > > > | Number of lines: 49746 Number of islands: 0 > > | > > > > | Number of boundaries: 0 Number of faces: 0 > > | > > > > | Number of centroids: 0 Number of kernels: 0 > > | > > > > | > > | > > > > | Map is 3D: 1 > > | > > > > | Number of dblinks: 1 > > | > > > > | > > | > > > > | Projection: Lambert Conformal Conic > > | > > > > | N: 258102.57210146 S: 196653.34855345 > > | > > > > | E: 676816.24830376 W: 610869.3848495 > > | > > > > | B: 49.16141063 T: 156.87280191 > > | > > As you see - the data are 3D! > > > I run > g.region vect=streets_wake res=100 -pa > v.drape in=streets_wake rast=elev_state_500m method=bilinear out=streets3d > # > r.mapcalc sealevel=0 > nviz el=sealevel vect=streets3d > > Looks pretty much 3D (sorry for flat terrain there...). > > Check also > v.out.ascii streets3d format=standard | head -50 > ORGANIZATION: NC OneMap > DIGIT DATE: Nov 7 6 > DIGIT NAME: helena > MAP NAME: Wake County roads and streets (lines map) > MAP DATE: Tue Nov 7 20:04:56 2006 > MAP SCALE: 1 > OTHER INFO: > ZONE: 0 > MAP THRESH: 0.000000 > VERTI: > L 4 1 > 625304.64965949 214113.54427121 111.15730809 > 625301.19968723 214078.52097425 111.15730809 > 625299.48976068 214056.17660237 111.15730809 > 625299.2898505 214050.64903112 111.15730809 > 1 1 > L 4 1 > 670282.21275792 227601.93222423 80.19490021 > 670374.57454089 227594.34858999 80.19490021 > 670445.44075096 227585.49027471 80.19490021 > 670480.4596783 227576.2012396 82.07733239 > 1 2 > L 2 1 > 640859.16790248 227574.18138204 107.09736996 > 640807.37009659 227572.59333673 107.09736996 > 1 3 > ... > > Markus > -- Matthew Pulis URL : http://www.solutions-lab.net MSN : [EMAIL PROTECTED] ICQ : 145951110 Skype : solutions-lab.net -- Matthew Pulis URL : http://www.solutions-lab.net MSN : [EMAIL PROTECTED] ICQ : 145951110 Skype : solutions-lab.net
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