OpenStreetMap
Gregory Peony's Comments
| Changeset | When | Comment |
|---|---|---|
| 164180445 | Most of these footprints represent buildings, some are fairly well mapped but could be slightly smaller. When mapping buildings, please trace the shape accurately. Accurate building footpritns aid population estimates and prevent issues like data overlaps. Zoom in so that you can see the outline of the building and mark the corners carefully. Exclude shadows and yards when tracing the footprint. Keep in mind that you are looking at the roofs of buildings, but mapping their footprints. Depending on how the scene is lit, pitched roofs may have light and dark sections that belong to one building. Generally pitched roofs overhang the walls of a building, so a footprint slightly smaller than the roof is accurate. You can scale selected features in ID with shift+(-/+), or JOSM with ctrl.+alt+Lclick & drag. Take care to make contributions that others can build upon. See how I mapped some here https://osmcha.org/changesets/169481125
|
|
| 164094959 | Building footpritns whould represent one building. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide.
|
|
| 166859832 | Hi, thank you for your contribution. Generally you identified buildings in the imagery and appropriately squared them. Generally they appear oversized. When mapping buildings, please trace the shape accurately. Accurate building footpritns aid population estimates and prevent issues like data overlaps. Zoom in so that you can see the outline of the building and mark the corners carefully. Exclude shadows and yards when tracing the footprint. Keep in mind that you are looking at the roofs of buildings, but mapping their footprints. Depending on how the scene is lit, pitched roofs may have light and dark sections that belong to one building. Generally pitched roofs overhang the walls of a building, so a footprint slightly smaller than the roof is accurate. You can scale selected features in ID with shift+(-/+), or JOSM with ctrl.+alt+Lclick & drag. Take care to make contributions that others can build upon.
|
|
| 166859694 | Hi, thank you for your contributions. The footpritns you added here represent those visible in imagery but are not as accurate as they could be. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 164094658 | Hi you identified square buildings in the imagery. Thet could be more accurate because they are generally oversized, have not been squared, and share nodes. Accurate footprints are important for population estimates and to prevent issues like data overlaps. See how I mapped some of these here https://osmcha.org/changesets/169477049 Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 168402859 | Hi, the building you mapped here represents one in the imagery and is appropriately squared. It is however slightly overzised. Accurate footprints aid population estimates and prevent issues like data overlaps.
|
|
| 169172046 | See how I mapped these buildings in https://osmcha.org/changesets/169429891
|
|
| 169171983 | Resolution https://osmcha.org/changesets/169429366
|
|
| 169172046 | All footpritns valid, though generally the footprints you map are slightly oversized. The two I flagged are the most obvious ones. A building's footprint is generally still considered accurate if it's slightly smaller than a pitched roof becasue it likely overhangs the walls somewhat. This helps avoid data overlaps and other issues in feature dense areas. Watch this video for an example of how to edit existing data in JOSM https://youtu.be/BDGP_-Dlepo?feature=shared. I hope you find it useful.
|
|
| 169171983 | Hi, all footprints you mapped here represent buildings and are appropritaely squared. The footprint I flagged is oversized becasue it includes a yard to its south. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 168256303 | You identified and mapped buildings in the imagery here. Consider how people on the ground will travel. The footprint I flagged is clearly oversized, because it overlaps a highway visible in the imagery meaning they would overlap. You're looking at the roofs but mapping the footprints of buildings. Hope this helps. Thank you for your contribution.
|
|
| 169370008 | I modifed the footprints I mentioned in https://osmcha.org/changesets/169375946
|
|
| 169370008 | All footprints represent buildings in imagery. I think the footprint I flagged likely envelopes 2 buildings and that the Western most footprint is oversized. Roofs tend to overhang footprins somewhat, so mapping the footprints slightly smaller is considered accurate. Sometimes the roof is extended to provide shade, or highways go underneath them in the imagery. This can also help when mapping in dense areas to not create data overlaps. Hope this helps. Thank you for your contributions.
|
|
| 168318798 | Hi, all of the footprints you added here represent buildings in the imagery and they have been appropriately squared. Some could be more accurately positioned (m), oriented (r) and sized (shift+(-/+). Please remember to tag the features you map. Why did you use bing to map here? The custom source for the project has a much greater resolution and is more recent. Your mapping should reflect the primary source of a project. Thank you for your contribution.
|
|
| 168291350 | Hi, you idenitfied buildings in imagery but they are not accrately mapped. Do not add layer tags to hide 'resolve' overlapping data issues who's root cause is inaccurate geometry. I recommend watching the new mapper mistakes videos on this page https://www.youtube.com/@TheMissingMaps ---Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 168390482 | Hi, do not add layer tags to features to hide overlap issues when the root cause is inaccurate geometry. Modify the geometry so that data does not overlap. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 168343128 | You mapped the two L shaped buildings in the SW accurately. map to that standard in future. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 168343128 | The features I flagged have unnecessarily been mapped as multipolygons. Multipolygons are used to define more complex scenarios, using them excessively makes the data more difficult to work with. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 168318006 | Hi, Emma. If you do not tag the features you map then the data base won't know what the geometries you digitised represent. I applied tags to buildings you mapped. The features I flagged likely envelope multiple buildings. consider what the footprints under the roofs look like. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|
|
| 168174152 | hi, you generally are identifying roofs in the imagery. I flagged a few features which likely envelope multiple buildings. Consider what the most likely footprint shapes under the roofs are. Sometimes cross-referencing a secondary source can help, just remember to map using the primary source. --- the Northern most building shares points with an adjacent building but a path can be seen between them in the imagery. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
|