Good job modifying the exisitng footprints here rather than deleting and remapping. You may want to map footprints slightly smaller than the roof you see to give yourself a buffer for the change in shape that occurs during squaring. 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/
---
#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171934087

Hi, you appropriately moved the highway to prevent data overlaps and make the relative position of features more accurate.

The vast majority of footprints here represent individual footprints, but two in the South with complex shapes envelope two buildings each; pay attentetion to shadows, roof colours, and access to buildings to know where one building ends and another begins.

Good job modifying the existing building to make room for adding one visible in imagery, though the SW footprint is still longer than the building is in reality.

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/

Hi, this is overall a good cahngeset, but the arrow head shaped building in the NW is likely just a rectangular building and just looks that way becasue the imagery was taken at an angle. see osm.wiki/Roof_modelling#Typical_errors_in_the_interpretation_of_roof_geometry_from_aerial_images for an illustration. Condsider this possibility when you want to map a building with an arrowhead footprint. 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/
---
#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171932949

Hi, you are generally identifying buildings. A few of the buildings you mapped are almost as accurate as the imagery allows. Consider that you are looking at the roofs of buildings which likely overhang the walls somewhat. You created invalid shared nodes between buildings and a residnetial area: hold alt to prevent this. Good job trying to map the shape of the western building and not just making it a rectangle. A few of the buildings here have needlessly complex shapes, becasue they envelope multiple buildings; consider if a simple shape can accurately represent a feature before trying other options. See how I mapped some of these in https://osmcha.org/changesets/171934078

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](roof:shape=*#Roof_shape), 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.

Please do not connect the corners of buildings to other buildings or features such as highways or residential areas. In the iD Editor, hold down the `Alt` key to prevent your cursor from snapping to existing data and accidentally creating shared(grey) nodes. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) has more information and a guide.

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/

Resolved by https://osmcha.org/changesets/171933411
---
#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171930102

See how I mapped these buildings in https://osmcha.org/changesets/171933411 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/
---
#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171930543

Hi, in a couple of places you created shared nodes between buildings that share nodes: hold alt to prevent the creation of shared nodes.

Please do not connect the corners of buildings to other buildings or features such as highways or residential areas. In the iD Editor, hold down the `Alt` key to prevent your cursor from snapping to existing data and accidentally creating shared(grey) nodes. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) 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/

See how I mapped these buildings in https://osmcha.org/changesets/171932108

Weclome to OSM Josh! You identified buildings in the imagery and tagged them correctly but the imagery allows for them to be mapped more accurately; they are generally oversized and should be squared. Please watcht this short video to laern the basics of building mapping in the ID editor. https://youtu.be/Xs5wX592E1o

The following are some comprehensive comments regarding the previous points;

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](roof:shape=*#Roof_shape), 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.

After tracing and tagging features which are likely square or round, please remember to square their corners (q), or circularise them (o), because it is almost impossible and time consuming to draw shapes so percisely by hand. Buildings with metal or pitched roofs tend to have square corners; round buildings are identifiable by the distinctive cresent shaped shadow they cast. Unless the building is clearly a different shape then it's best to assume that it should be rounded or its corners should be squared. In the iD Editor, you can right click for access to editing functions. Since roofs tend to overhang walls trace the initial shape slightly smaller to allow a buffer for any change in size that may occur. In JOSM use the [buildingstools plugin](osm.wiki/JOSM/Plugins/BuildingsTools). In ID you must draw the shape accurately enough else shapes will not completely square. This [video about squaring features in ID](https://youtu.be/Xs5wX592E1o) has more information and a demo.

I hope you find this helpful.

Hi, the buildings you added here are generally valid but oversized. This led to issues where some footprints overlapped other unmapped buildings visible in the imagery. Unless you're sure that a building shares a wall with another it's best to map them seperately.

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](roof:shape=*#Roof_shape), 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.

Please do not connect the corners of buildings to other buildings or features such as highways or residential areas. In the iD Editor, hold down the `Alt` key to prevent your cursor from snapping to existing data and accidentally creating shared(grey) nodes. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) has more information and a guide.

Please keep this feedbcak in mind in future. I hope this helps.

Accidental comment on my own changeset. OSMCha failed to load the target changeset.

Hi, the buildings you added here are generally valid but oversized. This led to issues where some footprints overlapped other unmapped buildings visible in the imagery. Unless you're sure that a building shares a wall with another it's best to map them seperately.

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](roof:shape=*#Roof_shape), 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.

Please do not connect the corners of buildings to other buildings or features such as highways or residential areas. In the iD Editor, hold down the `Alt` key to prevent your cursor from snapping to existing data and accidentally creating shared(grey) nodes. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) has more information and a guide.

See how I mapped the footpritns here in https://osmcha.org/changesets/171900733

Hi, you identified buildings in imagery but most footpritns you map are 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](roof:shape=*#Roof_shape), 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.

I hope this helps.

Hi, There's reason to believe that all footprints you've mapped here represent buildings, however they are generally oversized; please map the footprints slightly smaller than the pitched roofs you see in imagery. 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/
---
#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171899921

Hi, all but one footprint you mapped represent a building; I think the round building represents a tree.

Generally the footpritns here are accurate and it looks like you took care when mapping them, please try to exclude the shadow a building casts from its footprint size. Mapping the footprint slightly smaller than pitched roofs you see in imagery can help with this, and accounts for the likely overhang of the roof.

On a few occasions it looks like you mapped only one half of a pitched roof i.e. only the dark or light side. Consider the roof shape, how the scene is lit and the shadow a building casts (e.g. its length) to aid your interpretation. roof:shape=*#Roof_shape

I flagged the footpritns for reference in OSMCha.

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/

Why did you delete these footprints? I mapped these footprints to show you how they would look when acurately mapped. Features should not be deleted unless you have reason to believe that they do not represent things that currently exist. You should modify features you can identify if you think they are not accurate as this preserves their history. Resolved by Changeset: 171898908
---
#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171898656

Hi, when mapping square features please right click and select square, or press q after tagging to square the corners of features. I resolved this in Changeset: 171898709

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/
---
#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171898499

Hello, you have generally identified buildings in the imagery and mapped them quite accurately. They'd be even more accurate if you map the footprint slightly smaller than the roof you see. You created some invalid shared nodes between buildings and residential areas: hold alt to prevent your cursor from snapping to existing data. If you want to map a round feature, then right click it and circularise it, or use the short cut o.

The following are more comprehensive comments regarding the previous points;

Please do not connect the corners of buildings to other buildings or features such as highways or residential areas. In the iD Editor, hold down the `Alt` key to prevent your cursor from snapping to existing data and accidentally creating shared(grey) nodes. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) has more information and a guide.

After tracing and tagging features which are likely square or round, please remember to square their corners (q), or circularise them (o), because it is almost impossible and time consuming to draw shapes so percisely by hand. Buildings with metal or pitched roofs tend to have square corners; round buildings are identifiable by the distinctive cresent shaped shadow they cast. Unless the building is clearly a different shape then it's best to assume that it should be rounded or its corners should be squared. In the iD Editor, you can right click for access to editing functions. Since roofs tend to overhang walls trace the initial shape slightly smaller to allow a buffer for any change in size that may occur. In JOSM use the [buildingstools plugin](osm.wiki/JOSM/Plugins/BuildingsTools). In ID you must draw the shape accurately enough else shapes will not completely square. This [video about squaring features in ID](https://youtu.be/Xs5wX592E1o) has more information and a demo.

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/

Welcome to OSM! The footprint you added here represents a building in the imagery, well spotted! I think this building is actually square becasue the shadow it casts is straight. See how I mapped it in https://osmcha.org/changesets/171898153

If you want to map a round feature press o, (or right click and select the relevant function) after tagging it to circularise it.
---
#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/171897448