Re: [HOT] Waterway - Determining Flow Direction

On Tue, Apr 5, 2016 at 3:13 PM, Paul Norman wrote: > On 4/5/2016 11:49 AM, Michael Heißmeier wrote: > > Hi Mike, > > there is another option which I occasionally use. Depending on the area in > question you might find more-or-less outdated US military maps (JOG/AMS > etc.)

Re: [HOT] Waterway - Determining Flow Direction

On 4/5/2016 11:49 AM, Michael Heißmeier wrote: Hi Mike, there is another option which I occasionally use. Depending on the area in question you might find more-or-less outdated US military maps (JOG/AMS etc.) which have the advantage that there is no copyright associated with them. They tend

Re: [HOT] Waterway - Determining Flow Direction

Getting the flow directions correct can be tricky. In any case, its should be easy to find and correct waterways with an incorrect flow using a tool like osmose http://osmose.openstreetmap.fr/en/map/ Have fun at the mapathon! On Wed, Apr 6, 2016 at 12:35 AM, Mike Thompson

Re: [HOT] Waterway - Determining Flow Direction

On Tue, Apr 5, 2016 at 12:53 PM, Ezra Boyd wrote: > > - Look for things like locks, spillways, bridges, etc. that would cause > whitewater and use that to determine flow direction > - Rivers and streams tend to flow toward larger waterbodies, such as > lakes, gulfs and

Re: [HOT] Waterway - Determining Flow Direction

On Tue, Apr 5, 2016 at 12:40 PM, Michael Heißmeier < michae...@digital-filestore.de> wrote: > Hi Mike, > > there is another option which I occasionally use. Depending on the area in > question you might find more-or-less outdated US military maps (JOG/AMS > etc.) which have the advantage that

Re: [HOT] Waterway - Determining Flow Direction

Ah, sorry I read your email too quickly. I’ll add OpenCycleMap as a background layer in iD - I agree that the contour data is useful. In the meantime, yes you can add it as a custom background layer as Blake described. Thanks, Bryan > On Apr 5, 2016, at 2:04 PM, Mike Thompson

Re: [HOT] Waterway - Determining Flow Direction

Here are a few other tips that might work: - Look for things like locks, spillways, bridges, etc. that would cause whitewater and use that to determine flow direction - Rivers and streams tend to flow toward larger waterbodies, such as lakes, gulfs and oceans. Look for things likes deltas to

Re: [HOT] Waterway - Determining Flow Direction

Hi Mike, there is another option which I occasionally use. Depending on the area in question you might find more-or-less outdated US military maps (JOG/AMS etc.) which have the advantage that there is no copyright associated with them. They tend to be fairly exact as far as terrain and

Re: [HOT] Waterway - Determining Flow Direction

On Tue, Apr 5, 2016 at 12:11 PM, Blake Girardot wrote: > seeing the area might help a bit to see if anyone has any tips. The general area is that which is around this node: https://www.openstreetmap.org/node/4100183177 (note I have already mapped the waterway which that

Re: [HOT] Waterway - Determining Flow Direction

Hi Mike, seeing the area might help a bit to see if anyone has any tips. It can be difficult to get the water flow directions right even with OCM. My general tips are, with limited effectiveness: zoom out a lot to see what the general watershed and terrain looks like whitewater points in

Re: [HOT] Waterway - Determining Flow Direction

On Tue, Apr 5, 2016 at 11:42 AM, john whelan wrote: > Quietly do the rivers before anyone starts in JOSM? > > iD has its limitations so I'd be tempted to either accept that waterways > will flow the wrong way 50% of the time and hope the validators will > correct it or

Re: [HOT] Waterway - Determining Flow Direction

Hi Mike, waterways in iD are rendered with directional arrows (see screenshot: http://i.imgur.com/E5n9SPM.png ). OpenStreetMap convention is to draw the way in the direction of the flow, much like oneway roads. Have a great mapathon! Bryan > On Apr 5,