<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi,<div class=""><br class=""></div><div class="">I am attempting to use the `rmarea` tool in v.clean with a threshold of ~ 1000 sq meters.</div><div class=""><br class=""></div><div class="">projection is the following:</div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">g.proj -p</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">-PROJ_INFO-------------------------------------------------</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">name : NAD83 / UTM zone 5N</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">datum : nad83</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">ellps : grs80</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">proj : utm</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">zone : 5</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">towgs84 : 0,0,0,0,0,0,0</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">no_defs : defined</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">-PROJ_EPSG-------------------------------------------------</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">epsg : 26905</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">-PROJ_UNITS------------------------------------------------</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">unit : meter</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">units : meters</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">meters : 1</span></div></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""> I am getting a rather cryptic message ‘Failed to build area’. </div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">> v.clean -c --overwrite --verbose input=plot_pa_with_lidar@project_area output=plot_pa_rmarea tool=rmarea threshold=1017.2</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">--------------------------------------------------</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Tool: Threshold</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Remove small areas: 1017.2</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">--------------------------------------------------</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Vector map <plot_pa_rmarea> already exists and will be overwritten</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Using native format</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Copying features...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> 100%</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Rebuilding parts of topology...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Building topology for vector map <plot_pa_rmarea@project_area>...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Registering primitives...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">1720636 primitives registered</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">3439992 vertices registered</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Building areas...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Area of size = 0.0 ignored</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> 100%</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">499671 areas built</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">6004 isles built</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Attaching islands...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> 100%</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Attaching centroids...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> 100%</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Topology was built</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of nodes: 728615</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of primitives: 1720636</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of points: 0</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of lines: 0</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of boundaries: 1222309</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of centroids: 498327</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of areas: 499671</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Number of isles: 6004</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Number of incorrect boundaries: 9</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">WARNING: Number of duplicate centroids: 14</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">--------------------------------------------------</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Tool: Remove small areas</span></div><div style="margin: 0px; font-stretch: normal; font-size: 14px; line-height: normal; font-family: Menlo; color: rgb(249, 249, 249); background-color: rgb(39, 39, 39);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">ERROR: Failed to build new area</span></div></div></body></html>