<div dir="ltr"><div>Dear Michal,</div><div><br></div><div>ad example 1)</div><div>At such cases, the preferred workflow is to merge adjacent building polygons into one building, combining the values of <span style="font-family:monospace">ref:ruian:building</span>. These are fictional splits required by technical limitations of the current cadastre. In reality, there is only one building. It solves the spike problem as a side-effect.</div><div><br></div><div>Consult this page: <a href="https://wiki.openstreetmap.org/wiki/Cs:R%C3%9AIAN/Mapov%C3%A1n%C3%AD_budov_a_adresn%C3%ADch_m%C3%ADst#Obrys_budovy_z_vrstvy_R%C3%9AIAN_je_roz%C5%99%C3%ADznut_podivnou_lini%C3%AD">https://wiki.openstreetmap.org/wiki/Cs:R%C3%9AIAN/Mapov%C3%A1n%C3%AD_budov_a_adresn%C3%ADch_m%C3%ADst#Obrys_budovy_z_vrstvy_R%C3%9AIAN_je_roz%C5%99%C3%ADznut_podivnou_lini%C3%AD</a></div><div><br></div><div>H.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 19 Sept 2024 at 10:38, Michal Wlodarczyk via talk-cz <<a href="mailto:talk-cz@openstreetmap.org">talk-cz@openstreetmap.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-133064487064349991">





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<p class="MsoNormal">Hi Czechia OSM Community! <u></u><u></u></p>
<p class="MsoNormal">My team in TomTom is solving spikes on buildings in Czechia.
<u></u><u></u></p>
<p style="margin:0in">In general users creates the building polygons as per the Czech CUZK:KM carto layer. To remove the spike present on the buildings there are certain complications as follows.<u></u><u></u></p>
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<li style="margin-top:0in;margin-bottom:0in;vertical-align:baseline;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal">
As per the Czech CUZK:KM carto layer we cannot remove the spike as it is matching with the carto layer but not with the reality<u></u><u></u></li><li style="margin-top:0in;margin-bottom:0in;vertical-align:baseline;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal">
According to the imagery the spike is not present which is contradicting with the Czech CUZK:KM layer<u></u><u></u></li></ul>
<p class="MsoNormal">Can you please advice how we can work these issues ? <u></u><u></u></p>
<p style="margin:0in">Example 1: <u></u><u></u></p>
<p style="margin:0in">Task Link: <a href="https://maproulette.org/challenge/44790/task/225696185" target="_blank">
<span style="color:windowtext;text-decoration:none">https://maproulette.org/challenge/44790/task/225696185</span></a> <u></u><u></u></p>
<p style="margin:0in">Way id: way 457207851<u></u><u></u></p>
<p class="MsoNormal">Observation: When looked into the OSM data it is found that there is a spike at (49.9735921, 16.776278). Our editor removed the way 457207850 and aligned the way 457207851 as per ground reality.<u></u><u></u></p>
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<p align="center" style="margin:0in;text-align:center"><b><span style="font-family:"Arial",sans-serif;color:black">Before Data</span></b><u></u><u></u></p>
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<p align="center" style="margin:0in;text-align:center"><b><span style="font-family:"Arial",sans-serif;color:black">Data post GL Edits</span></b><u></u><u></u></p>
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<p style="margin:0in"><b><span style="font-family:"Arial",sans-serif;color:black;border:1pt solid black;padding:0in"><img border="0" width="298" height="256" style="width: 3.1083in; height: 2.6666in;" id="m_-133064487064349991_x0000_i1025" src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXcyV48iwKNyXCb2C9mGOxJKHGJgS0GFw0no8_GkvYKd8Nuj7Wo_FhmRrs3BdywxNCNQMVumeNcgzJjZI1fQeswc-MuSOU_3gSDVS3vSPNEpHNwIKjvTqa-IDunRPlMh4kYUE53SgvKaHakfwdwA_b1sVYjN?key=9Gnn4WaPZhf8sTqRrSy80g" alt="pic1"></span></b><u></u><u></u></p>
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<p style="margin:0in"><b><span style="font-family:"Arial",sans-serif;color:black;border:1pt windowtext;padding:0in"><img border="0" width="296" height="260" style="width: 3.0833in; height: 2.7083in;" id="m_-133064487064349991_x0000_i1026" src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXd7NuGPgFNPLD30LzfKYAM6UAsZbhhL0XH2lB3abWsKxIByOr1gJS43my_UBPRdwmVFmDu0wadJATVJbepIzYQmYu84dN7U4kxAsCxgNiQUcT-RDNlyvGCp5CnMKrNEfB2KiZZhCUJg3aYsAh6a-7-jllQB?key=9Gnn4WaPZhf8sTqRrSy80g" alt="pic2"></span></b><u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p style="margin:0in;vertical-align:baseline">Example 2: <u></u><u></u></p>
<p style="margin:0in;vertical-align:baseline">Task Link: <a href="https://maproulette.org/challenge/44790/task/225696167" target="_blank">
<span style="color:windowtext;text-decoration:none">https://maproulette.org/challenge/44790/task/225696167</span></a><u></u><u></u></p>
<p style="margin:0in;vertical-align:baseline">Way id: way 553716939<u></u><u></u></p>
<p style="margin:0in;vertical-align:baseline">Observation: When looked into the OSM data it is found that there is a spike at (49.8575, 18.2892678). Our editor modified and aligned the building polygon way 553716939 as per ground reality.<u></u><u></u></p>
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<p align="center" style="margin:0in;text-align:center"><b><span style="font-family:"Arial",sans-serif;color:black">Before Data</span></b><u></u><u></u></p>
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<p align="center" style="margin:0in;text-align:center"><b><span style="font-family:"Arial",sans-serif;color:black">Data post GL Edits</span></b><u></u><u></u></p>
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<p style="margin:0in"><b><span style="font-family:"Arial",sans-serif;color:black;border:1pt solid black;padding:0in"><img border="0" width="298" height="303" style="width: 3.1083in; height: 3.1583in;" id="m_-133064487064349991_x0000_i1027" src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXefiI1GUtkKyV0IQUJ_dUvKKsbMUTZ7S41Tlk37asOXEZhEtYBxsjoGh8mf3u1dbYizP_Z0aVpYOziwvBisC5m2XzEwLGpHpgObdfkuL8MRC2zvcU93mpJndlv9ltf-qv9849utEWNiSQlDS36wdWLovUQ?key=9Gnn4WaPZhf8sTqRrSy80g" alt="pic3"></span></b><u></u><u></u></p>
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<p style="margin:0in"><b><span style="font-family:"Arial",sans-serif;color:black;border:1pt solid black;padding:0in"><img border="0" width="298" height="302" style="width: 3.1083in; height: 3.15in;" id="m_-133064487064349991_x0000_i1028" src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXdCIjnMyqIaSeQE4I28U6n-DQXitk6vwoyitBwbApSURtnQiinTdrCnk0r9zgIF8hAnYL19tsRHCKcC5gRD59AplqTky0fV8tICg67TEU3lmpNgoz54jEzZHA3ARq2caLY3sEuotC3ssvC4j-WdChxvOPPf?key=9Gnn4WaPZhf8sTqRrSy80g"></span></b><u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p style="margin:0in;vertical-align:baseline">Example 3:<u></u><u></u></p>
<p style="margin:0in;vertical-align:baseline">Task Link: <a href="https://maproulette.org/challenge/44790/task/225696242" target="_blank">
<span style="color:windowtext;text-decoration:none">https://maproulette.org/challenge/44790/task/225696242</span></a><u></u><u></u></p>
<p style="margin:0in;vertical-align:baseline">Way id: way 51800424<u></u><u></u></p>
<p style="margin:0in;vertical-align:baseline">Observation: When looked into the OSM data it is found that there is a spike at (49.2225828, 16.5561804). Our editor modified and aligned the building polygon way 51800424 as per ground reality.<u></u><u></u></p>
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<p align="center" style="margin:0in;text-align:center"><b><span style="font-family:"Arial",sans-serif;color:black">Before Fixes</span></b><u></u><u></u></p>
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<p align="center" style="margin:0in;text-align:center"><b><span style="font-family:"Arial",sans-serif;color:black">After Fixes</span></b><u></u><u></u></p>
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<p align="center" style="margin:0in;text-align:center"><b><span style="font-family:"Arial",sans-serif;color:black">Czech CUZK:KM</span></b><u></u><u></u></p>
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<p style="margin:0in"><b><span style="font-family:"Arial",sans-serif;color:black;border:1pt solid black;padding:0in"><img border="0" width="194" height="200" style="width: 2.025in; height: 2.0833in;" id="m_-133064487064349991_x0000_i1030" src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXc5uytqlJAmf5EmXoMZiMKZDhItp1bKPNvLMzIfxBeIV59h4AgONVxzaxGTj5afR3PFwspsH1HBCYvzQTvLu14TgJnwgHRVJzkAUWYN3X7ICU-i7Fd9cb7ensyg2IiHwYj3P75wEN-O1mEGSKCItih1YY4?key=9Gnn4WaPZhf8sTqRrSy80g"></span></b><u></u><u></u></p>
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<p style="margin:0in"><b><span style="font-family:"Arial",sans-serif;color:black;border:1pt solid black;padding:0in"><img border="0" width="194" height="197" style="width: 2.025in; height: 2.05in;" id="m_-133064487064349991_x0000_i1031" src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXc3guAPf-kNopJbd6rno-OMSv9wvZvXgm6YZ0LNcZ0xmxcb5f1D_wXnvm0fV7xMHpz68rsbh8kmrYjazPQ9M_YTEw7IeSyVbcxZYaJfZVglPl9iH5fhVeZh0uIZ3LPciQvsLISJ0H6qW4aHJ_KB5Rl0-q7J?key=9Gnn4WaPZhf8sTqRrSy80g"></span></b><u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thank you <u></u><u></u></p>
<p class="MsoNormal">Michal <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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