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of cost surface in blue.https://smathermather.com/wp-content/uploads/2019/01/muhabura_begin_end.pngmuhabura_begin_endShaded elevation model of Muhabura with the beginning and ending points labeled.https://smathermather.com/wp-content/uploads/2019/01/muhabura_cost.pngmuhabura_costDepiction of cost surface with least cost path overlaid with a nice long path around the edge of the mountain.https://smathermather.com/wp-content/uploads/2019/01/muhabura.pngmuhaburaLeast-cost path around Volcan Muhabura; or how to avoid volcanos with GRASS GIS.2021-04-06T18:48:56+00:00monthlyhttps://smathermather.com/2019/01/14/cartography-and-parks/https://smathermather.com/wp-content/uploads/2019/01/regional.pngregionalMap showing regional connectionshttps://smathermather.com/wp-content/uploads/2019/01/lf.pnglfLakefront maphttps://smathermather.com/wp-content/uploads/2019/01/nc_over.pngnc_overOverview map of complicated trailshttps://smathermather.com/wp-content/uploads/2019/01/nc.pngncMap demonstrating how complicated trail systems require good trail mapshttps://smathermather.com/wp-content/uploads/2019/01/be.pngbeMap showcasing detailed contours in a varied terrainhttps://smathermather.com/wp-content/uploads/2019/01/br.pngbrMoar clustered icons with some contours shownhttps://smathermather.com/wp-content/uploads/2019/01/ms.pngmsScreen shot of map showing clustered NPS style icons2019-01-16T02:38:46+00:00monthlyhttps://smathermather.com/2018/12/07/classifying-point-clouds-with-cgal/https://smathermather.com/wp-content/uploads/2018/12/classified01.pngclassified01https://smathermather.com/wp-content/uploads/2018/12/training00.pngtraining00https://smathermather.com/wp-content/uploads/2018/12/unclass00.pngunclass00https://smathermather.com/wp-content/uploads/2018/12/bos_grunniens_at_yundrok_yumtso_lake.jpgbos_grunniens_at_yundrok_yumtso_lakehttps://smathermather.com/wp-content/uploads/2018/12/classif.pngclassifImage of 3 classifications of the same point cloud using CGAL2018-12-07T16:09:13+00:00monthlyhttps://smathermather.com/2018/12/07/better-3d-all-the-time/2018-12-07T06:35:21+00:00monthlyhttps://smathermather.com/2018/12/02/digital-elevation-model-improvements-cont-with-code/2018-12-03T00:17:24+00:00monthlyhttps://smathermather.com/2018/12/01/digital-elevation-model-improvements-continued/2018-12-02T04:10:41+00:00monthlyhttps://smathermather.com/2018/12/01/better-digital-elevation-models-for-everyone/2018-12-02T01:08:18+00:00monthlyhttps://smathermather.com/2018/11/28/water-runs-downhill/2018-11-29T14:07:31+00:00monthlyhttps://smathermather.com/2018/09/25/a-sequel-on-gorillas-pythons-pandas-and-some-computer-code/2018-10-08T17:55:03+00:00monthlyhttps://smathermather.com/2018/09/19/women-and-foss4g-hot-summit-in-africa/https://smathermather.com/wp-content/uploads/2018/09/485c4696-21ef-4b9c-9a49-3d78717668fd.jpg485c4696-21ef-4b9c-9a49-3d78717668fdhttps://smathermather.com/wp-content/uploads/2018/09/img_1039.jpgimg_1039https://smathermather.com/wp-content/uploads/2018/09/img_0955.jpgimg_0955https://smathermather.com/wp-content/uploads/2018/09/img_0971.jpgimg_09712018-09-24T01:07:13+00:00monthlyhttps://smathermather.com/2018/09/06/dronetz/https://smathermather.com/wp-content/uploads/2018/09/img_1045.jpgimg_1045https://smathermather.com/wp-content/uploads/2018/09/img_1033.jpgimg_1033https://smathermather.com/wp-content/uploads/2018/09/img_1029.jpgimg_1029https://smathermather.com/wp-content/uploads/2018/09/img_1016.jpgimg_1016https://smathermather.com/wp-content/uploads/2018/09/img_0938.jpgimg_0938https://smathermather.com/wp-content/uploads/2018/09/img_0883.jpgimg_0883https://smathermather.com/wp-content/uploads/2018/09/a92bd5df-569c-46a3-a025-79490f458e50.jpga92bd5df-569c-46a3-a025-79490f458e50https://smathermather.com/wp-content/uploads/2018/09/img_0916.jpgimg_0916https://smathermather.com/wp-content/uploads/2018/09/img_0932.jpgimg_0932https://smathermather.com/wp-content/uploads/2018/09/img_0914.jpgimg_09142018-09-07T14:50:23+00:00monthlyhttps://smathermather.com/2018/07/12/upcoming-improvements-to-opendronemap-better-everything/https://smathermather.com/wp-content/uploads/2018/06/slide38.pngSlide38https://smathermather.com/wp-content/uploads/2018/06/slide37.pngSlide37https://smathermather.com/wp-content/uploads/2018/06/slide36.pngSlide36https://smathermather.com/wp-content/uploads/2018/06/slide35.pngSlide35https://smathermather.com/wp-content/uploads/2018/06/slide34.pngSlide34https://smathermather.com/wp-content/uploads/2018/06/slide33.pngSlide33https://smathermather.com/wp-content/uploads/2018/06/slide33.jpgSlide33https://smathermather.com/wp-content/uploads/2018/06/slide32.pngSlide32https://smathermather.com/wp-content/uploads/2018/06/slide32.jpgSlide32https://smathermather.com/wp-content/uploads/2018/06/slide31.pngSlide312018-06-21T22:42:57+00:00monthlyhttps://smathermather.com/2018/04/23/opendronemap-for-non-drone-applications/2018-04-23T13:58:04+00:00monthlyhttps://smathermather.com/2018/03/18/come-to-tanzania-foss4g-2018-dar/https://smathermather.com/wp-content/uploads/2018/03/img_5289-1.jpgimg_5289-1View of the sunrise from Dar es Salaamhttps://smathermather.com/wp-content/uploads/2018/03/img_5306.jpgimg_5306Tea queue, Ramani Huria closing workshophttps://smathermather.com/wp-content/uploads/2018/03/img_5321.jpgimg_5321The National Museum, Dar es Salaamhttps://smathermather.com/wp-content/uploads/2018/03/img_5327.jpgimg_5327Fig tree, The National Museum, Dar es Salaamhttps://smathermather.com/wp-content/uploads/2018/03/img_5312.jpgimg_5312https://smathermather.com/wp-content/uploads/2018/03/img_5622.jpgimg_5622Pick-up football (soccer) game, Stone Townhttps://smathermather.com/wp-content/uploads/2018/03/img_5567.jpgimg_5567The Indian Ocean, Zanzibarhttps://smathermather.com/wp-content/uploads/2018/03/img_5639.jpgimg_5639Swahili style fishhttps://smathermather.com/wp-content/uploads/2018/03/img_5656.jpgimg_5656View from plane over Zanzibarhttps://smathermather.com/wp-content/uploads/2018/03/img_7322.jpgimg_73222018-03-19T02:25:43+00:00monthlyhttps://smathermather.com/2018/03/13/opendronemap-and-uhuru-labs-in-kerala-india-another-post/https://smathermather.com/wp-content/uploads/2018/03/kerala.pngkerala2018-03-13T21:37:28+00:00monthlyhttps://smathermather.com/2018/03/13/dar-visit-drone-fun/https://smathermather.com/wp-content/uploads/2018/03/sdim0734.jpgSDIM0734Iris+https://smathermather.com/wp-content/uploads/2018/03/sdim0726.jpgSDIM0726Micro drone flown insidehttps://smathermather.com/wp-content/uploads/2018/03/sdim0725.jpgSDIM0725Foamy dronehttps://smathermather.com/wp-content/uploads/2018/03/sdim0723.jpgSDIM0723https://smathermather.com/wp-content/uploads/2018/03/sdim0722.jpgSDIM0722Pile of droneshttps://smathermather.com/wp-content/uploads/2018/03/img_20180224_125104.jpgIMG_20180224_125104Electric bike ride to Tanzania Flying Labs, photo credit Frederick Mbuyahttps://smathermather.com/wp-content/uploads/2018/03/sdim0720.jpgSDIM0720Image of the electric bicycle in questionhttps://smathermather.com/wp-content/uploads/2018/03/sdim0719.jpgSDIM0719Ivan and Frederick chatting in the tech den.https://smathermather.com/wp-content/uploads/2018/03/sdim0718.jpgSDIM0718Tech denhttps://smathermather.com/wp-content/uploads/2018/03/sdim0717.jpgSDIM0717President's Award with server2018-03-13T21:25:13+00:00monthlyhttps://smathermather.com/2018/02/22/apis-helvetica/https://smathermather.com/wp-content/uploads/2018/02/snapshot01.pngsnapshot01https://smathermather.com/wp-content/uploads/2018/02/snapshot00.pngsnapshot00https://smathermather.com/wp-content/uploads/2018/02/sdim0431.jpgSDIM0431https://smathermather.com/wp-content/uploads/2018/02/sdim0427.jpgSDIM0427https://smathermather.com/wp-content/uploads/2018/02/sdim0414.jpgSDIM0414https://smathermather.com/wp-content/uploads/2018/02/sdim0411.jpgSDIM0411https://smathermather.com/wp-content/uploads/2018/02/sdim0409.jpgSDIM0409https://smathermather.com/wp-content/uploads/2018/02/sdim0404.jpgSDIM0404https://smathermather.com/wp-content/uploads/2018/02/sdim0395.jpgSDIM0395https://smathermather.com/wp-content/uploads/2018/02/sdim0389.jpgSDIM03892018-02-22T15:08:58+00:00monthlyhttps://smathermather.com/2018/02/10/opendronemap-and-uhuru-labs-in-kerala-india/https://smathermather.com/wp-content/uploads/2018/02/img_9489.jpgIMG_9489https://smathermather.com/wp-content/uploads/2018/02/img_9573.jpgIMG_9573https://smathermather.com/wp-content/uploads/2018/02/img_9571.jpgIMG_9571https://smathermather.com/wp-content/uploads/2018/02/img_9749.jpgIMG_9749https://smathermather.com/wp-content/uploads/2018/02/img_9679.jpgIMG_9679https://smathermather.com/wp-content/uploads/2018/02/img_9604.jpgIMG_9604https://smathermather.com/wp-content/uploads/2018/02/img_9601.jpgIMG_9601https://smathermather.com/wp-content/uploads/2018/02/img_9597.jpgIMG_9597https://smathermather.com/wp-content/uploads/2018/02/img_9587.jpgIMG_9587https://smathermather.com/wp-content/uploads/2018/02/img_9613-e1518295969995.jpgTraining flights2018-02-17T22:57:22+00:00monthlyhttps://smathermather.com/2017/08/21/orthophotos-from-orthophotos/https://smathermather.com/wp-content/uploads/2017/08/output1.pngoutput1OpenDroneMap derived mosaic of input orthophotos with remaining image boundaries to process in the background.https://smathermather.com/wp-content/uploads/2017/08/overlap3.pngoverlap3Image showing the high level of overlap in overlapping image footprints.https://smathermather.com/wp-content/uploads/2017/08/offsets.pngoffsetsScreen shot showing radiometric inconsistencies and geometric offsets.https://smathermather.com/wp-content/uploads/2017/08/overlaps.pngoverlapsImage of aerials with lines showing boundaries of overlapping independently orthorectified imagery.2017-10-04T07:28:49+00:00monthlyhttps://smathermather.com/2017/07/04/gorilla-food-plants-biomass-and-ranging/https://smathermather.com/wp-content/uploads/2017/07/olivier.jpgolivierhttps://smathermather.com/wp-content/uploads/2017/07/vegetation_plot_zones.pngvegetation_plot_zoneshttps://smathermather.com/wp-content/uploads/2017/07/vegetation_plots.pngvegetation_plotshttps://smathermather.com/wp-content/uploads/2017/07/study_area_inset2.pngstudy_area_insetMap of gorilla sightings outside VNP within our study area.https://smathermather.com/wp-content/uploads/2017/07/study_area2.pngstudy_areaMap of study area near Karisimbi and Bisoke Volcanoes outside Volcanoes National Park.https://smathermather.com/wp-content/uploads/2017/07/study_area_inset1.pngstudy_area_insetMap of gorilla sightings outside VNP within our study area.https://smathermather.com/wp-content/uploads/2017/07/study_area1.pngstudy_areaMap of study area near Karisimbi and Bisoke Volcanoes outside Volcanoes National Park. https://smathermather.com/wp-content/uploads/2017/07/study_area_inset.pngstudy_area_insetMap of gorilla sightings outside VNP within our study area.https://smathermather.com/wp-content/uploads/2017/07/gorilla_bamboo_rainy_season.jpggorilla_bamboo_rainy_seasonGorilla from the Amahoro (Peace) group in a bamboo stand during rainy season. (Amahoro group is not part of this study.)https://smathermather.com/wp-content/uploads/2017/07/study_area.pngstudy_areaMap of study area near Karisimbi and Bisoke Volcanoes outside Volcanoes National Park.2017-07-06T19:45:16+00:00monthlyhttps://smathermather.com/2017/06/12/zmi-zanzibar-mapping-initiative-level-1/https://smathermather.com/wp-content/uploads/2017/06/mosaic.pngmosaichttps://smathermather.com/wp-content/uploads/2017/06/zmi_level1.pngzmi_level1https://smathermather.com/wp-content/uploads/2017/06/single_tile.pngsingle_tilehttps://smathermather.com/wp-content/uploads/2017/06/grid_actual.pnggrid_actualhttps://smathermather.com/wp-content/uploads/2017/06/grid.pnggridhttps://smathermather.com/wp-content/uploads/2017/06/overview.pngoverviewhttps://smathermather.com/wp-content/uploads/2017/06/img_5460.jpgimg_5460https://smathermather.com/wp-content/uploads/2017/06/img_5430.jpgimg_5430https://smathermather.com/wp-content/uploads/2017/06/img_5451.jpgimg_54512017-06-13T13:35:20+00:00monthlyhttps://smathermather.com/2017/06/12/a-little-gorilla-time/https://smathermather.com/wp-content/uploads/2017/06/snip.pngsniphttps://smathermather.com/wp-content/uploads/2017/06/img_5979-2.jpgimg_5979-22017-06-13T03:03:34+00:00monthlyhttps://smathermather.com/2017/03/28/opendronemap-on-the-road-part-ii/https://smathermather.com/wp-content/uploads/2017/03/pelican_cloud_15351.pngpelican_cloud_1535https://smathermather.com/wp-content/uploads/2017/03/pelican_cloud_1535.pngpelican_cloud_1535https://smathermather.com/wp-content/uploads/2017/03/51jzd5t6gll2.jpg51jzd5t6gll2https://smathermather.com/wp-content/uploads/2017/03/51jzd5t6gll1.jpg51jzd5t6gll12017-04-26T06:47:05+00:00monthlyhttps://smathermather.com/2017/03/27/opendronemap-on-the-road/https://smathermather.com/wp-content/uploads/2017/03/field_compute1.pngfield_compute1https://smathermather.com/wp-content/uploads/2017/03/field_compute.pngfield_computehttps://smathermather.com/wp-content/uploads/2017/03/screen-shot-2017-03-07-at-6-44-54-am4.pngscreen-shot-2017-03-07-at-6-44-54-am4https://smathermather.com/wp-content/uploads/2017/03/screen-shot-2017-03-07-at-6-44-54-am3.pngscreen-shot-2017-03-07-at-6-44-54-am3https://smathermather.com/wp-content/uploads/2017/03/51jzd5t6gll.jpg51jzd5t6gllhttps://smathermather.com/wp-content/uploads/2017/03/screen-shot-2017-03-07-at-6-44-54-am2.pngscreen-shot-2017-03-07-at-6-44-54-am22017-03-28T12:09:11+00:00monthlyhttps://smathermather.com/2017/03/26/time-for-localization/https://smathermather.com/wp-content/uploads/2017/03/img_6874.pngimg_68742017-03-28T03:08:50+00:00monthlyhttps://smathermather.com/2017/03/08/scaling-opendronemap-necessary-and-fun-next-steps/https://smathermather.com/wp-content/uploads/2017/03/screen-shot-2017-03-07-at-6-44-54-am1.pngScreen Shot 2017-03-07 at 6.44.54 AMProperly fused dataset in single XYZ model space (simulated)https://smathermather.com/wp-content/uploads/2017/03/screen-shot-2017-03-07-at-6-44-29-am.pngScreen Shot 2017-03-07 at 6.44.29 AMPoint cloud of dataset 2https://smathermather.com/wp-content/uploads/2017/03/screen-shot-2017-03-07-at-6-44-11-am.pngScreen Shot 2017-03-07 at 6.44.11 AMPoint cloud of dataset 1https://smathermather.com/wp-content/uploads/2017/03/brookside_dem03.pngbrookside_dem03Elevation differences along seamline of merged OpenDroneMap DTMshttps://smathermather.com/wp-content/uploads/2017/03/problem_solution_man_scale.pngproblem_solution_man_scaleWater flow on fused DEMhttps://smathermather.com/wp-content/uploads/2017/03/problem_water_scale.pngproblem_water_scaleWater flow on patched DEM showing pooling effects around discontinuitieshttps://smathermather.com/wp-content/uploads/2017/03/zanzibar_overlap.pngzanzibar_overlaphttps://smathermather.com/wp-content/uploads/2017/03/zanzibar.pngzanzibarhttps://smathermather.com/wp-content/uploads/2017/03/schoolbus.jpgschoolbushttps://smathermather.com/wp-content/uploads/2017/03/dr-teeth-and-the-electric-mayhem-the-muppets.pngdr-teeth-and-the-electric-mayhem-the-muppetsDr. Teeth2017-08-17T02:07:13+00:00monthlyhttps://smathermather.com/2017/02/23/taking-slices-from-lidar-opendronemap-data-part-x/https://smathermather.com/wp-content/uploads/2017/02/teaser.pngteaserhttps://smathermather.com/wp-content/uploads/2017/02/buildings_trees.pngbuildings_treeshttps://smathermather.com/wp-content/uploads/2017/02/point_cloud.pngpoint_cloudhttps://smathermather.com/wp-content/uploads/2017/02/screen-shot-2017-02-20-at-10-24-32-pm1.pngscreen-shot-2017-02-20-at-10-24-32-pm12017-02-23T13:06:07+00:00monthlyhttps://smathermather.com/2017/02/20/taking-slices-from-lidar-data-part-ix/https://smathermather.com/wp-content/uploads/2017/02/screen-shot-2017-02-20-at-10-24-32-pm.pngscreen-shot-2017-02-20-at-10-24-32-pm2017-05-11T02:23:10+00:00monthlyhttps://smathermather.com/2017/02/18/taking-slices-from-lidar-data-part-viii/https://smathermather.com/wp-content/uploads/2017/02/no_ovelap_zoomout3.pngno_ovelap_zoomouthttps://smathermather.com/wp-content/uploads/2017/02/no_ovelap_zoomout2.pngno_ovelap_zoomouthttps://smathermather.com/wp-content/uploads/2017/02/no_ovelap_zoomout1.pngno_ovelap_zoomouthttps://smathermather.com/wp-content/uploads/2017/02/no_ovelap_zoomout.pngno_ovelap_zoomouthttps://smathermather.com/wp-content/uploads/2017/02/ovelap_zoomout.pngovelap_zoomoutFigure showing overlap of LiDAR scanlines2017-02-19T01:05:41+00:00monthlyhttps://smathermather.com/2017/02/16/quantitative-analysis-of-gorilla-movement-and-r-stat-part-3-monkey/https://smathermather.com/wp-content/uploads/2017/02/hr_v_ha.jpghr_v_hahttps://smathermather.com/wp-content/uploads/2017/02/hr.jpghrhttps://smathermather.com/wp-content/uploads/2017/02/kud.jpgkud2017-02-16T15:47:50+00:00monthlyhttps://smathermather.com/2017/02/15/taking-slices-from-lidar-data-part-vi-2/https://smathermather.com/wp-content/uploads/2017/02/image001.pngimage001https://smathermather.com/wp-content/uploads/2017/02/subsample-ex2.pngsubsample-ex2https://smathermather.com/wp-content/uploads/2017/02/subsample-ex1.pngsubsample-ex1https://smathermather.com/wp-content/uploads/2017/02/lidar_flightlines.pnglidar_flightlineshttps://smathermather.com/wp-content/uploads/2017/02/lidar_returnsscanlines.pnglidar_returnsscanlines2017-02-24T12:56:55+00:00monthlyhttps://smathermather.com/2017/01/30/gorilla-research-in-musanze-rwanda-hillshades-continued/https://smathermather.com/wp-content/uploads/2017/01/screen-shot-2017-01-30-at-11-51-56-pm.pngscreen-shot-2017-01-30-at-11-51-56-pmExample of simplified and HDRI rendered hillshade.https://smathermather.com/wp-content/uploads/2017/01/screen-shot-2017-01-30-at-11-34-49-pm.pngscreen-shot-2017-01-30-at-11-34-49-pmhttps://smathermather.com/wp-content/uploads/2017/01/smooth400.pngsmooth400Multicolor hillshade with simplificationhttps://smathermather.com/wp-content/uploads/2017/01/smooth000.pngMulticolor HillshadeMulticolor hillshade with no simplificationhttps://smathermather.com/wp-content/uploads/2017/01/smooth_hdr.pngsmooth_hdrHillshade over the hills of Rwanda2017-01-31T05:11:21+00:00monthlyhttps://smathermather.com/2017/01/29/on-generalization-blending-for-shaded-relief/https://smathermather.com/wp-content/uploads/2017/01/anothercompare.pnghttps://smathermather.com/wp-content/uploads/2017/01/extrememedianbw.pnghttps://smathermather.com/wp-content/uploads/2017/01/finalbw.pnghttps://smathermather.com/wp-content/uploads/2017/01/comparebw.pnghttps://smathermather.com/wp-content/uploads/2017/01/stdevhillblurbw.pnghttps://smathermather.com/wp-content/uploads/2017/01/firstbw.pnghttps://smathermather.com/wp-content/uploads/2017/01/equalizerbw.pnghttps://smathermather.com/wp-content/uploads/2017/01/details2bw.pnghttps://smathermather.com/wp-content/uploads/2017/01/originalbw.pnghttps://smathermather.com/wp-content/uploads/2017/01/downsamplemedianbw.png2017-01-30T00:47:43+00:00monthlyhttps://smathermather.com/2017/01/22/gorilla-research-in-musanze-rwanda-hillshades/https://smathermather.com/wp-content/uploads/2017/01/viewshed_no_trees.pngVirunga MountainsHillshade of the Virungas and surrounding 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of surface model derived from points filtered using progressive morphological filter plus building footprint and outlier removal.https://smathermather.com/wp-content/uploads/2016/10/02-pmfilter_1.png02-pmfilter_1Image of surface model derived from points filtered using progressive morphological filter.https://smathermather.com/wp-content/uploads/2016/10/02-apmfilter_1.png02-apmfilter_1https://smathermather.com/wp-content/uploads/2016/10/01-no_filter_1.png01-no_filter_1Image of unfiltered surface model.https://smathermather.com/wp-content/uploads/2016/10/03-pmfilter_building.png03-pmfilter_buildingImage of surface model derived from points filtered using progressive morphological filter plus building footprint and outlier removal.https://smathermather.com/wp-content/uploads/2016/10/02-pmfilter.png02-pmfilterImage of surface model derived from points filtered using approximate progressive morphological filter.https://smathermather.com/wp-content/uploads/2016/10/02-apmfilter.png02-apmfilterImage of surface model derived from points filtered using progressive morphological filter.https://smathermather.com/wp-content/uploads/2016/10/01-no_filter.png01-no_filterImage of unfiltered surface 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PM2016-02-05T05:10:46+00:00monthlyhttps://smathermather.com/2016/02/04/point-clouds-in-sketchup/2016-02-05T03:53:37+00:00monthlyhttps://smathermather.com/2016/01/28/taking-slices-from-lidar-data/https://smathermather.com/wp-content/uploads/2016/01/maxresdefault.jpgmaxresdefault2016-01-29T03:53:56+00:00monthlyhttps://smathermather.com/2016/01/28/parallel-processing-in-pdal/https://smathermather.com/wp-content/uploads/2016/01/frankfurt_airport_tunnel.jpgKONICA MINOLTA DIGITAL 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AMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-15-at-12-15-51-am.pngScreen Shot 2016-01-15 at 12.15.51 AMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-15-at-12-11-17-am.pngScreen Shot 2016-01-15 at 12.11.17 AMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-15-at-12-09-33-am.pngScreen Shot 2016-01-15 at 12.09.33 AMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-15-at-12-19-12-am.pngScreen Shot 2016-01-15 at 12.19.12 AMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-15-at-12-18-08-am.pngScreen Shot 2016-01-15 at 12.18.08 AMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-15-at-12-09-18-am.pngScreen Shot 2016-01-15 at 12.09.18 AMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-15-at-12-07-06-am.pngScreen Shot 2016-01-15 at 12.07.06 AM2016-01-15T05:29:57+00:00monthlyhttps://smathermather.com/2016/01/14/generative-art-in-postgis/https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-14-at-11-45-55-pm.pngScreen Shot 2016-01-14 at 11.45.55 PMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-14-at-11-45-41-pm.pngScreen Shot 2016-01-14 at 11.45.41 PMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-14-at-11-46-30-pm.pngScreen Shot 2016-01-14 at 11.46.30 PMhttps://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-14-at-11-46-55-pm.pngScreen Shot 2016-01-14 at 11.46.55 PM2016-01-15T05:20:14+00:00monthlyhttps://smathermather.com/2016/01/13/yet-another-approach-to-st_buffer-on-geography/https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-13-at-6-38-15-pm.pngScreen Shot 2016-01-13 at 6.38.15 PM2016-01-14T04:31:16+00:00monthlyhttps://smathermather.com/2016/01/12/st_buffer-on-geography-iteration/https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-12-at-9-16-18-pm.pngScreen Shot 2016-01-12 at 9.16.18 PMBlue line showing correct buffer, dashed red line showing distorted buffer from using wrong local coordinate system.2016-01-14T00:31:17+00:00monthlyhttps://smathermather.com/2016/01/11/final-st_buffer-on-geography-or-my-love-for-nullisland/https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-11-at-6-02-06-pm.pngScreen Shot 2016-01-11 at 6.02.06 PMHeart shaped buffer over Null Island.2016-01-13T02:21:49+00:00monthlyhttps://smathermather.com/2016/01/10/st_buffer-diving-under-the-covers-part-1/2016-01-11T23:22:41+00:00monthlyhttps://smathermather.com/2016/01/09/st_buffer-for-those-who-want-really-want-all-buffer-features-in-geography/https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-09-at-4-40-12-pm.pngScreen Shot 2016-01-09 at 4.40.12 PMExample buffer of line with join=mitre mitre_limit=5.0.2016-01-09T21:46:21+00:00monthlyhttps://smathermather.com/2016/01/08/st_buffer-for-those-who-want-really-round-geographic-circles/https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-08-at-6-36-07-pm.pngScreen Shot 2016-01-08 at 6.36.07 PMZoom in of different buffer smoothnesses.https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-08-at-6-27-50-pm.pngScreen Shot 2016-01-08 at 6.27.50 PMSquare, Octagon, etc. generated from new buffer function.https://smathermather.com/wp-content/uploads/2016/01/screen-shot-2016-01-08-at-6-21-50-pm.pngScreen Shot 2016-01-08 at 6.21.50 PMImage of 8 segment buffer from geography.2016-01-11T18:23:40+00:00monthlyhttps://smathermather.com/2016/01/04/st_approximatemedialaxisgeom/https://smathermather.com/wp-content/uploads/2016/01/4.jpg4https://smathermather.com/wp-content/uploads/2016/01/3.jpg3https://smathermather.com/wp-content/uploads/2016/01/1.jpg1https://smathermather.com/wp-content/uploads/2016/01/2.jpg22016-01-06T02:46:47+00:00monthlyhttps://smathermather.com/2015/10/27/opendronemap-the-future-that-awaits-part-%ec%82%bc/2015-10-28T00:56:29+00:00monthlyhttps://smathermather.com/2015/10/25/opendronemap-the-future-that-awaits-part-%ec%9d%b4/2015-10-26T01:41:41+00:00monthlyhttps://smathermather.com/2015/10/24/opendronemap-the-future-that-awaits/https://smathermather.com/wp-content/uploads/2015/10/screen-shot-2015-10-14-at-7-55-08-pm.pngScreen Shot 2015-10-14 at 7.55.08 PMhttps://smathermather.com/wp-content/uploads/2015/10/screen-shot-2015-10-14-at-7-52-07-pm.pngScreen Shot 2015-10-14 at 7.52.07 PMhttps://smathermather.com/wp-content/uploads/2015/10/screen-shot-2015-10-14-at-7-49-45-pm.pngScreen Shot 2015-10-14 at 7.49.45 PM2015-10-27T15:57:47+00:00monthlyhttps://smathermather.com/2015/10/19/reflections-on-goldilocks/https://smathermather.com/wp-content/uploads/2015/10/new-doc-11_1.jpgnew doc 11_1Diagram of building roof with 3 camera observationshttps://smathermather.com/wp-content/uploads/2015/10/new-doc-10_1.jpgnew doc 10_1Diagram of reflectance gradient on leaf.https://smathermather.com/wp-content/uploads/2015/10/new-doc-9_1.jpgnew doc 9_1https://smathermather.com/wp-content/uploads/2015/10/new-doc-8_1.jpgnew doc 8_1Diagram of leaf with three camera observations2015-10-20T02:47:51+00:00monthlyhttps://smathermather.com/2015/10/18/opendronemap-improvements-needed/https://smathermather.com/wp-content/uploads/2015/10/textured_mesh_building.pngTextured mesh of buildingTextured mesh of buildinghttps://smathermather.com/wp-content/uploads/2015/10/mesh_dense_building.pngUn-textured mesh of buildingsUn-textured mesh of buildingshttps://smathermather.com/wp-content/uploads/2015/10/point_cloud.pngpoint_cloudCreate Dense Point Cloudhttps://smathermather.com/wp-content/uploads/2015/10/mesh.pngmeshhttps://smathermather.com/wp-content/uploads/2015/10/textured-mesh.pngTexture meshTexture meshhttps://smathermather.com/wp-content/uploads/2015/10/point_cloud_dense.pngpoint_cloud_densehttps://smathermather.com/wp-content/uploads/2015/10/mesh_dense.pngmesh_denseDense 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impatiens, Gwacheon City, South KoreaUnknown impatiens, Gwacheon City, South Korea2015-09-29T03:15:06+00:00monthlyhttps://smathermather.com/2015/09/28/time-lapse/2015-09-29T00:47:49+00:00monthlyhttps://smathermather.com/2015/08/31/mini-series-on-korean-words-part-3-agglutinative-language/2015-08-31T21:50:46+00:00monthlyhttps://smathermather.com/2015/08/30/mini-series-on-korean-words-part-2-land-of-mountains-and-sea/https://smathermather.com/wp-content/uploads/2015/08/screen-shot-2015-08-30-at-9-38-14-pm.pngScreen Shot 2015-08-30 at 9.38.14 PM2015-08-31T02:06:23+00:00monthlyhttps://smathermather.com/2015/08/29/google-maps-wont-help-you-much-in-seoul/https://smathermather.com/wp-content/uploads/2015/08/unnamed1.pngunnamed1https://smathermather.com/wp-content/uploads/2015/08/unnamed.pngunnamed2015-08-30T06:20:01+00:00monthlyhttps://smathermather.com/2015/08/29/mini-series-on-korean-words-part-1-big-bang-in-asia/https://smathermather.com/wp-content/uploads/2015/08/screen-shot-2015-08-29-at-11-59-02-am.pngScreen Shot 2015-08-29 at 11.59.02 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ring.2015-05-30T03:05:18+00:00monthlyhttps://smathermather.com/2015/04/29/bash-script-for-adding-directional-compass-arrows-to-image/https://smathermather.com/wp-content/uploads/2015/04/dsc05945.jpgDSC059452015-04-29T19:49:17+00:00monthlyhttps://smathermather.com/2015/04/27/moar-kite-flight-pics/2015-04-27T14:01:38+00:00monthlyhttps://smathermather.com/2015/04/20/kite-flight/https://smathermather.com/wp-content/uploads/2015/04/16-cir_image_0-2ft_res.png16 cir_image_0.2ft_resIR image from the flight.2015-04-27T13:59:45+00:00monthlyhttps://smathermather.com/2015/03/13/foss4gna-photos-well-ok-just-san-francisco/2015-03-17T00:17:19+00:00monthlyhttps://smathermather.com/2015/03/07/north-carolina-gis-conference/https://smathermather.com/wp-content/uploads/2015/03/tangible.pngtangiblehttps://smathermather.com/wp-content/uploads/2015/03/mobile_global_open.pngmobile_global_open2015-03-08T02:50:23+00:00monthlyhttps://smathermather.com/2015/03/06/opendronemap-video-for-foss4gna/https://smathermather.com/wp-content/uploads/2015/03/odm_screenshot.pngodm_screenshot2015-03-11T23:33:53+00:00monthlyhttps://smathermather.com/2015/03/01/opendronemap-gcp-file-format/https://smathermather.com/wp-content/uploads/2015/03/3_points.png3_pointsScreenshot of coordinate collection process -- a total of 3 points have now been collected.https://smathermather.com/wp-content/uploads/2015/03/grabbing_coordinates.pnggrabbing_coordinatesScreenshot of coordinate collection process2015-03-01T15:00:06+00:00monthlyhttps://smathermather.com/2015/02/20/opendronemap-now-with-animated-gifs/2015-02-21T23:31:28+00:00monthlyhttps://smathermather.com/2015/02/16/korean-phonetics-and-hangul/2015-02-21T17:23:34+00:00monthlyhttps://smathermather.com/2015/02/12/normalizing-tables-in-postgresql-experiments-with-fulcrum/https://smathermather.com/wp-content/uploads/2015/02/fulcrum.pngfulcrumhttps://smathermather.com/wp-content/uploads/2015/02/comma_delimited.pngcomma_delimited2015-02-13T03:56:20+00:00monthlyhttps://smathermather.com/2015/02/12/take-that-hipsters-compositing-in-geoserver/https://smathermather.com/wp-content/uploads/2015/02/compositing.pngcompositing2015-02-13T13:52:54+00:00monthlyhttps://smathermather.com/2015/02/04/opendronemap-orthophotos-and-gcps/https://smathermather.com/wp-content/uploads/2015/02/ground_control.pngground_control2015-02-11T16:36:28+00:00monthlyhttps://smathermather.com/2015/02/07/opendronemap-orthophotos-textured-mesh-ground-control-points-oh-my/https://smathermather.com/wp-content/uploads/2015/02/seneca_mesh.pngseneca_meshhttps://smathermather.com/wp-content/uploads/2015/02/seneca.pngseneca2015-02-08T02:17:34+00:00monthlyhttps://smathermather.com/2015/02/04/opendronemap-orthophotos-and-textured-mesh-habitats/https://smathermather.com/wp-content/uploads/2015/02/mini-dunes1.pngmini-duneshttps://smathermather.com/wp-content/uploads/2015/02/img_0052.jpgIMG_00522015-02-04T19:07:59+00:00monthlyhttps://smathermather.com/2015/02/04/opendronemap-orthophotos-and-textured-mesh-testing/https://smathermather.com/wp-content/uploads/2015/02/orthophoto.pngorthophotohttps://smathermather.com/wp-content/uploads/2015/02/georeferenced_textured_mesh.pnggeoreferenced_textured_mesh2015-02-04T16:47:39+00:00monthlyhttps://smathermather.com/2015/01/21/opendronemap-orthophotos-and-textured-mesh-cont/https://smathermather.com/wp-content/uploads/2015/01/opensfm-odm.pngopensfm-odmhttps://smathermather.com/wp-content/uploads/2015/01/odm_processing.pngodm_processing2015-01-21T17:20:09+00:00monthlyhttps://smathermather.com/2014/12/22/opendronemap-orthophotos-and-textured-mesh/https://smathermather.com/wp-content/uploads/2014/12/langley_screen.jpglangley_screenhttps://smathermather.com/wp-content/uploads/2014/12/odm_orthphoto.pngodm_orthphotohttps://smathermather.com/wp-content/uploads/2014/12/seneca_screen.jpgseneca_screen2015-01-21T16:20:36+00:00monthlyhttps://smathermather.com/2015/01/18/refinements-on-the-tenor-guitar-2/2015-01-19T02:08:19+00:00monthlyhttps://smathermather.com/2015/01/17/refinements-on-the-tenor-guitar/2015-01-18T04:25:26+00:00monthlyhttps://smathermather.com/2015/01/12/opendronemap-humanitarian-uses-of-outputs/2015-01-13T04:00:28+00:00monthlyhttps://smathermather.com/2015/01/02/lasers-in-lutherie/2015-01-03T02:43:36+00:00monthlyhttps://smathermather.com/2014/12/22/moar-guitarz/2014-12-29T16:21:54+00:00monthlyhttps://smathermather.com/2014/12/15/and-now-for-something-completely-different-guitarmaking-by-a-geo-geek/2014-12-16T17:08:06+00:00monthlyhttps://smathermather.com/2014/12/10/korean-and-hangul/https://smathermather.com/wp-content/uploads/2014/12/hangul.jpghangul2014-12-11T04:09:23+00:00monthlyhttps://smathermather.com/2014/12/07/and-i-will-fly-ten-thousand-miles/2014-12-08T03:21:26+00:00monthlyhttps://smathermather.com/2014/11/25/landscape-position-using-gdal-pt-3/https://smathermather.com/wp-content/uploads/2014/11/valleyz.pngvalleyzhttps://smathermather.com/wp-content/uploads/2014/11/valleyz1.pngvalleyz1https://smathermather.com/wp-content/uploads/2014/11/valleyz2.pngvalleyz2https://smathermather.com/wp-content/uploads/2014/11/valleyz3.pngvalleyz32014-11-26T02:22:50+00:00monthlyhttps://smathermather.com/2014/11/24/landscape-position-using-gdal-pt-2/https://smathermather.com/wp-content/uploads/2014/11/valleys_improved_5.pngvalleys_improved_5https://smathermather.com/wp-content/uploads/2014/11/valleys_improved_4.pngvalleys_improved_4https://smathermather.com/wp-content/uploads/2014/11/valleys_improved_3-1.pngvalleys_improved_3.1https://smathermather.com/wp-content/uploads/2014/11/valleys_improved_3.pngvalleys_improved_3https://smathermather.com/wp-content/uploads/2014/11/valleys_improved_21.pngvalleys_improved_2https://smathermather.com/wp-content/uploads/2014/11/valleys_improved_11.pngvalleys_improved_1https://smathermather.com/wp-content/uploads/2014/11/valleys_improved.pngvalleys_improvedhttps://smathermather.com/wp-content/uploads/2014/11/valleys_improved_1.pngvalleys_improved_1https://smathermather.com/wp-content/uploads/2014/11/valleys_improved_2.pngvalleys_improved_22014-11-26T03:43:13+00:00monthlyhttps://smathermather.com/2014/11/22/landscape-position-using-gdal/https://smathermather.com/wp-content/uploads/2014/11/valleys.pngvalleysMap of landscape position estimated valleys in Cuyahoga County, Ohiohttps://smathermather.com/wp-content/uploads/2014/11/orig_1000.pngorig_1000https://smathermather.com/wp-content/uploads/2014/11/orig_0500.pngorig_0500https://smathermather.com/wp-content/uploads/2014/11/orig_0250.pngorig_0250https://smathermather.com/wp-content/uploads/2014/11/orig_0100.pngorig_0100https://smathermather.com/wp-content/uploads/2014/11/orig_0050.pngorig_0050https://smathermather.com/wp-content/uploads/2014/11/orig_0010.pngorig_0010Series of simplifications to contours using generalized rastershttps://smathermather.com/wp-content/uploads/2014/11/smooth.pngsmoothSmoothed DEMhttps://smathermather.com/wp-content/uploads/2014/11/unsmooth.pngunsmooth2014-11-23T03:25:17+00:00monthlyhttps://smathermather.com/2014/11/15/quick-and-likely-apocryphal-post-on-versioning-and-databases/https://smathermather.com/wp-content/uploads/2014/11/dat.pngdathttps://smathermather.com/wp-content/uploads/2014/11/geogig.pnggeogig2014-11-18T04:29:10+00:00monthlyhttps://smathermather.com/2014/11/09/iccm-international-conference-of-crisis-mappers/https://smathermather.com/wp-content/uploads/2014/11/crisis_mappers.pngcrisis_mappersScreen shot of Crisis Mappers landing page2014-11-10T02:10:25+00:00monthlyhttps://smathermather.com/2014/10/25/airspace-a-deep-rabbit-hole/https://smathermather.com/wp-content/uploads/2014/10/bcd-e0-e5.pngbcd-e0-e5Map showing Class B, C, D, E0, and E5 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by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. Data by <a href="http://openstreetmap.org">OpenStreetMap</a>, under <a href="http://www.openstreetmap.org/copyright">ODbL</a>.https://smathermather.com/wp-content/uploads/2014/10/airspace_cleveland.pngairspace_clevelandIsometric view of Cleveland controlled airspacehttps://smathermather.com/wp-content/uploads/2014/10/airspace_b.pngairspace_bMap of Detroit, Cleveland, and Pittsburgh Class B Airspace2014-10-28T20:48:10+00:00monthlyhttps://smathermather.com/2014/10/25/airspace-is-complicated-and-so-i-abuse-postgis-once-again-reprise/https://smathermather.com/wp-content/uploads/2014/10/airspace_dc_toner.pngairspace_dc_toner3D Figure of DC controlled airspacehttps://smathermather.com/wp-content/uploads/2014/10/airspace_dc.pngairspace_dc2014-12-05T21:14:10+00:00monthlyhttps://smathermather.com/2014/10/23/someone-is-wrong-on-the-internet/https://smathermather.com/wp-content/uploads/2014/10/even_righter.pngeven_righterhttps://smathermather.com/wp-content/uploads/2014/10/a_little_righter.pnga_little_righterhttps://smathermather.com/wp-content/uploads/2014/10/not_quite_right.pngnot_quite_right2014-10-23T20:47:49+00:00monthlyhttps://smathermather.com/2014/10/08/government-2-0-is-not-the-platform/2014-10-08T05:05:49+00:00monthlyhttps://smathermather.com/2014/09/28/public-sector-gis-done-extraordinarily-well/https://smathermather.com/wp-content/uploads/2014/09/trails_app_rescue.pngtrails_app_rescuehttps://smathermather.com/wp-content/uploads/2014/09/trails_app.pngtrails_apphttps://smathermather.com/wp-content/uploads/2014/09/naver_trail_view.pngnaver_trail_viewhttps://smathermather.com/wp-content/uploads/2014/09/drones1.pngdrones1https://smathermather.com/wp-content/uploads/2014/09/drones.pngdroneshttps://smathermather.com/wp-content/uploads/2014/09/endangered_species_mapping.pngendangered_species_mapping2014-10-02T09:51:13+00:00monthlyhttps://smathermather.com/2014/09/27/foss4g-2015-reasons-you-should-go/2014-10-01T01:53:08+00:00monthlyhttps://smathermather.com/2014/09/23/thanksgiving/https://smathermather.com/wp-content/uploads/2014/09/bea_trail.pngtrail2014-09-24T19:31:24+00:00monthlyhttps://smathermather.com/2014/09/22/opendronemap-the-movie/2014-09-22T22:18:05+00:00monthlyhttps://smathermather.com/2014/09/20/opendronemap-and-the-art-of-sneakernet-packet-making/2014-09-23T02:44:29+00:00monthlyhttps://smathermather.com/2014/09/16/opendronemap-art-and-science/https://smathermather.com/wp-content/uploads/2014/09/surface4.pngsurface4https://smathermather.com/wp-content/uploads/2014/09/surface3.pngsurface3https://smathermather.com/wp-content/uploads/2014/09/surface1.pngsurface1https://smathermather.com/wp-content/uploads/2014/09/surface.pngsurfacehttps://smathermather.com/wp-content/uploads/2014/09/points.pngpoints2014-09-17T03:46:16+00:00monthlyhttps://smathermather.com/2014/09/15/announcing-opendronemap-software-for-civilian-and-humanitarian-uas-post-processing/https://smathermather.com/wp-content/uploads/2014/09/textured_mesh.pngtextured_meshhttps://smathermather.com/wp-content/uploads/2014/09/image_series.pngimage_serieshttps://smathermather.com/wp-content/uploads/2014/09/odm_flow.pngodm_flow2015-05-22T01:35:39+00:00monthlyhttps://smathermather.com/2014/09/10/null-archipelago-null-islands-for-all-coordinate-reference-systems-revision/https://smathermather.com/wp-content/uploads/2014/09/null_archipelago_real.pngnull_archipelago_realhttps://smathermather.com/wp-content/uploads/2014/09/null_archipelago1.pngnull_archipelago2014-09-11T02:21:45+00:00monthlyhttps://smathermather.com/2014/09/10/null-archipelago-null-islands-for-all-coordinate-reference-systems/https://smathermather.com/wp-content/uploads/2014/09/null_archipelago.pngnull_archipelago2014-09-10T23:23:04+00:00monthlyhttps://smathermather.com/2014/09/10/foss-as-folk/2014-09-15T17:17:32+00:00monthlyhttps://smathermather.com/2014/09/08/texturing-surfaces/2014-09-09T01:57:35+00:00monthlyhttps://smathermather.com/2014/09/08/from-dobongsan-to-mount-saint-helens-foss4gs-and-opendronemap/2014-09-08T06:29:32+00:00monthlyhttps://smathermather.com/2014/09/02/and-then-steve-gets-all-sentimental/2014-09-07T07:46:28+00:00monthlyhttps://smathermather.com/2014/09/05/bukhansan-national-park-seoul-pt-two-on-to-dobongsan-mountain/2014-09-05T09:44:37+00:00monthlyhttps://smathermather.com/2014/09/04/bukhansan-national-park-seoul-pt-two-off-to-the-base-of-dobongsan-mountain/https://smathermather.com/wp-content/uploads/2014/09/dsc04906.jpgDSC04906https://smathermather.com/wp-content/uploads/2014/09/dsc04904.jpgDSC049042014-09-04T10:26:04+00:00monthlyhttps://smathermather.com/2014/09/04/bukhansan-national-park-seoul/https://smathermather.com/wp-content/uploads/2014/09/knps.pngknpshttps://smathermather.com/wp-content/uploads/2014/09/img_20140829_1757202.jpgIMG_20140829_175720~2https://smathermather.com/wp-content/uploads/2014/09/img_20140829_154947.jpgIMG_20140829_154947https://smathermather.com/wp-content/uploads/2014/09/0140829_002.jpg0140829_002https://smathermather.com/wp-content/uploads/2014/09/img_20140829_175720.jpgIMG_20140829_175720https://smathermather.com/wp-content/uploads/2014/09/bukhansan_map.pngbukhansan_map2014-09-04T06:59:57+00:00monthlyhttps://smathermather.com/2014/09/02/foss4g-korea-2014-poor-gps-photos-and-mapillary-part-2-of-n/https://smathermather.com/wp-content/uploads/2014/09/comparison_of_pre_post_transformed_w_aerial.pngcomparison_of_pre_post_transformed_w_aerialhttps://smathermather.com/wp-content/uploads/2014/09/comparison_of_pre_post_transformed.pngcomparison_of_pre_post_transformedhttps://smathermather.com/wp-content/uploads/2014/09/cameras_in_relative_space.pngcameras_in_relative_spacehttps://sma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of Picnic AreaMap of picnic area with GetFeatureInfo enabled on (brown) picnic structure.https://smathermather.com/wp-content/uploads/2011/08/freemarker_template.pngFreemarker Templatehttps://smathermather.com/wp-content/uploads/2011/08/screen-shot-2011-08-20-at-6-55-13-pm.pngScreen shot 2011-08-20 at 6.55.13 PM2014-10-20T16:13:15+00:00monthlyhttps://smathermather.com/2012/01/02/theres-an-app-for-that-alternate/https://smathermather.com/wp-content/uploads/2012/01/ridethecity.pngridethecityhttps://smathermather.com/wp-content/uploads/2012/01/balloon_shots_from.pngballoon_shots_fromhttps://smathermather.com/wp-content/uploads/2012/01/balloon.pngBalloon from abovehttps://smathermather.com/wp-content/uploads/2012/01/tiltmeter1.pngTiltmeterhttps://smathermather.com/wp-content/uploads/2012/01/tiltmeter.pngTiltmeter 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GDAL.2011-12-07T12:21:13+00:00monthlyhttps://smathermather.com/2011/12/06/leaflet-geoserver-and-open-source-software-ramblings/2011-12-07T11:25:26+00:00monthlyhttps://smathermather.com/2011/10/05/ogc-web-services-and-security/2011-12-02T14:32:08+00:00monthlyhttps://smathermather.com/2011/12/01/gdal_calc-py-raster-calculator-using-numby-functions/2016-04-04T10:57:45+00:00monthlyhttps://smathermather.com/2011/11/30/landscape-position-conclusion-2/2011-12-01T03:54:55+00:00monthlyhttps://smathermather.com/2011/11/30/complex-symbolization-in-geoserver/https://smathermather.com/wp-content/uploads/2011/11/compass_rose_mania.pngCompass Rose Mania-- the GeoServer VersionCompass Rose Mania-- the GeoServer Version2011-12-02T01:14:06+00:00monthlyhttps://smathermather.com/2011/11/28/cartodb-leaflet-and-a-little-anti-generalization/https://smathermather.com/wp-content/uploads/2011/11/zoom_out.pngZoom Outand also as you zoom out...https://smathermather.com/wp-content/uploads/2011/11/boundary_no_difference.pngBoundary no differenceThe problem goes away as you zoom in...https://smathermather.com/wp-content/uploads/2011/11/boundary_difference.pngBoundary DifferenceDifference between properly displayed GeoJSON, and GeoJSON with missing point.2011-12-07T10:41:26+00:00monthlyhttps://smathermather.com/2011/11/07/ecohacknyc-cool-projects-fun-new-ideas-human-waste-cartodb-and-other-flotsam/https://smathermather.com/wp-content/uploads/2011/11/screen-shot-2011-11-07-at-7-30-18-pm.pngSewershedIt turns out, when I stayed in a hotel in Midtown Manhattan, had it been raining hard enough to activate the CSOs, my waste would have come out just upstream from the UN. True story.2011-11-11T03:01:44+00:00monthlyhttps://smathermather.com/2011/10/27/postgis-for-breakfast-st_donut-revision/https://smathermather.com/wp-content/uploads/2011/10/st_donut.pngst_donut2011-10-28T13:08:56+00:00monthlyhttps://smathermather.com/2011/10/27/postgresql-dump-for-postgis-upgrade/2011-10-28T03:35:58+00:00monthlyhttps://smathermather.com/2011/10/28/postgis-2-0svn-and-raster/2011-10-27T12:59:25+00:00monthlyhttps://smathermather.com/2011/10/18/what-is-the-center-line-of-a-complex-polygon-cont-3/https://smathermather.com/wp-content/uploads/2011/10/stream_thiessen.pngstream_thiessenMedial axis of "bumpy" stream.2011-10-18T11:55:25+00:00monthlyhttps://smathermather.com/2011/10/06/postgis-for-breakfast-st_donut/https://smathermather.com/wp-content/uploads/2011/10/donut.pngdonut2011-10-11T00:18:35+00:00monthlyhttps://smathermather.com/2011/10/08/what-is-the-center-line-of-a-complex-polygon-cont-2/2011-10-09T03:18:29+00:00monthlyhttps://smathermather.com/2011/10/02/strange-maps/2011-10-03T00:52:51+00:00monthlyhttps://smathermather.com/2011/10/01/redirect-tomcat-root/2011-10-02T02:54:45+00:00monthlyhttps://smathermather.com/2011/09/29/trail-curation-cont/https://smathermather.com/wp-content/uploads/2011/09/trip_person.pngtrip_personhttps://smathermather.com/wp-content/uploads/2011/09/trails.pngtrails2011-09-29T03:40:19+00:00monthlyhttps://smathermather.com/2011/09/26/what-is-the-center-line-of-a-complex-polygon-cont/https://smathermather.com/wp-content/uploads/2011/09/31.jpg31https://smathermather.com/wp-content/uploads/2011/09/30.jpg30https://smathermather.com/wp-content/uploads/2011/09/29.jpg29https://smathermather.com/wp-content/uploads/2011/09/27.jpg27https://smathermather.com/wp-content/uploads/2011/09/26.jpg26https://smathermather.com/wp-content/uploads/2011/09/25.jpg25https://smathermather.com/wp-content/uploads/2011/09/stream_centerline1.pngStream CenterlineStream/River centerline extracted from stream bankshttps://smathermather.com/wp-content/uploads/2011/09/stream_centerline.pngstream_centerlineExtracted centerlinehttps://smathermather.com/wp-content/uploads/2011/09/stream_bank.pngstream_bankStream/River with digitized banks2011-09-27T03:01:12+00:00monthlyhttps://smathermather.com/2011/09/20/motivations-behind-open-source/2011-09-22T04:04:12+00:00monthlyhttps://smathermather.com/2011/09/20/copying-gwc-directory-efficiently/2011-09-27T02:09:11+00:00monthlyhttps://smathermather.com/2011/09/19/cleaning-postgis-geometries-revised/2011-09-19T18:53:54+00:00monthlyhttps://smathermather.com/2011/09/16/what-is-the-center-line-of-a-polygon-or-how-to-change-labeling-in-geoserver/https://smathermather.com/wp-content/uploads/2011/09/stream_hollow.pngstream_hollowhttps://smathermather.com/wp-content/uploads/2011/09/voronoi.pngvoronoihttps://smathermather.com/wp-content/uploads/2011/09/stream.pngstream2014-03-05T19:28:39+00:00monthlyhttps://smathermather.com/2011/09/01/cleaning-postgis-geometries/2011-09-02T02:49:32+00:00monthlyhttps://smathermather.com/2011/09/01/presentation-geocamp-in-portugal/2011-09-01T19:02:09+00:00monthlyhttps://smathermather.com/2011/08/25/openlayerer/2011-08-25T21:30:53+00:00monthlyhttps://smathermather.com/2011/08/23/debian-configuration%e2%80%93-tomcat-on-boot-revision/2011-08-22T16:35:35+00:00monthlyhttps://smathermather.com/2011/08/19/foss4g-2011-denver-ideal-schedule/2011-08-19T04:30:20+00:00monthlyhttps://smathermather.com/2011/08/03/really-loooong-wms-requests/2011-08-03T12:49:33+00:00monthlyhttps://smathermather.com/2011/07/29/gdal-mrsid-and-nearblack/https://smathermather.com/wp-content/uploads/2011/07/nearblack_zoom.pngnearblack_zoomNearly, but not quite black pixels at the edge of MrSid lossy compressed image2014-02-28T12:17:12+00:00monthlyhttps://smathermather.com/2011/07/25/dialog-what-qualifies-as-a-benchmark-part-1/2011-07-26T02:59:21+00:00monthlyhttps://smathermather.com/2011/07/23/writing-your-name-big-enough-to-be-seen-from-space/https://smathermather.com/wp-content/uploads/2011/07/cleveland_cavs.pngcleveland_cavsTrue and dedicated fans.2011-07-24T03:46:48+00:00monthlyhttps://smathermather.com/2011/07/21/lidar-shootout-%e2%80%94-new-chart-final-results/https://smathermather.com/wp-content/uploads/2011/07/rplot0011.pngSpeed plotComparison of lidar height calculations2011-07-21T00:54:22+00:00monthlyhttps://smathermather.com/2011/07/18/lidar-shootout/https://smathermather.com/wp-content/uploads/2011/07/rplot001.pngRplot0012011-09-18T19:02:22+00:00monthlyhttps://smathermather.com/2011/07/18/lidar-shootout-revisions/2011-07-18T20:27:52+00:00monthlyhttps://smathermather.com/2011/07/16/html-tags/2011-07-17T03:14:36+00:00monthlyhttps://smathermather.com/2011/02/10/geometry-collections-and-small-headaches/2011-07-17T03:04:26+00:00monthlyhttps://smathermather.com/2011/05/17/the-postgis-learning-curve-st_within-and-st_crosses/https://smathermather.com/wp-content/uploads/2011/05/st_within_st_crosses.pngst_within_st_crosseshttps://smathermather.com/wp-content/uploads/2011/05/st_overlaps_st_within.pngst_overlaps_st_withinhttps://smathermather.com/wp-content/uploads/2011/05/contours.pngcontours2011-07-17T02:59:56+00:00monthlyhttps://smathermather.com/2011/05/25/contours-structuring-postgis-data-for-viewing-with-geoserver-2/2011-07-17T02:54:06+00:00monthlyhttps://smathermather.com/2011/06/04/sql-nube-discovery/2011-07-17T02:51:08+00:00monthlyhttps://smathermather.com/2011/06/16/multi-ring-buffers-in-postgis-prep-for-landuse-analysis/https://smathermather.com/wp-content/uploads/2011/06/7.png7https://smathermather.com/wp-content/uploads/2011/06/6.png6https://smathermather.com/wp-content/uploads/2011/06/5.png5https://smathermather.com/wp-content/uploads/2011/06/4.png4https://smathermather.com/wp-content/uploads/2011/06/3.png3https://smathermather.com/wp-content/uploads/2011/06/2.png2https://smathermather.com/wp-content/uploads/2011/06/11.png1https://smathermather.com/wp-content/uploads/2011/06/1.png12011-07-17T02:49:03+00:00monthlyhttps://smathermather.com/2011/07/12/wms-vs-wmts-and-getfeatureinfo-requests/2011-07-29T13:49:21+00:00monthlyhttps://smathermather.com/2011/07/14/landscape-position-continued-absolutely-relative-position-calculation/https://smathermather.com/wp-content/uploads/2011/07/screen-shot-2011-07-13-at-9-28-33-pm1.pngScreen 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PM2011-07-17T02:24:01+00:00monthlyhttps://smathermather.com/2011/07/14/landscape-position-continued%e2%80%93-absolutely-relative-position-calculation-pics/https://smathermather.com/wp-content/uploads/2011/07/difference2.pngdifference2https://smathermather.com/wp-content/uploads/2011/07/raw_dem1.pngraw_dem2011-07-14T12:35:27+00:00monthlyhttps://smathermather.com/2011/07/14/landscape-position-continued%e2%80%93-median-and-imagemagick/https://smathermather.com/wp-content/uploads/2011/07/ridge_areas.pngridge_areashttps://smathermather.com/wp-content/uploads/2011/07/raw_dem.pngraw_dem2011-07-14T12:25:59+00:00monthlyhttps://smathermather.com/2011/06/21/geowebcache-configuration/2013-08-02T18:11:28+00:00monthlyhttps://smathermather.com/gwc-example/2011-07-08T21:24:41+00:00weekly0.6https://smathermather.com/2009/10/23/loading-lidar-data-in-postgis/2011-07-07T16:40:05+00:00monthlyhttps://smathermather.com/2009/11/23/limitations-to-trigger-based-unique-constraint/2011-07-07T16:39:09+00:00monthlyhttps://smathermather.com/2009/11/24/copy-command-psql-loading-large-lidar-point-dataset/2011-07-07T16:38:21+00:00monthlyhttps://smathermather.com/2009/12/20/gdal-contours/2011-07-07T16:37:35+00:00monthlyhttps://smathermather.com/2009/12/21/gdal-contours-cont/2011-07-07T16:36:34+00:00monthlyhttps://smathermather.com/2009/12/22/hillshade-using-perrygeos-ported-grass-utility/2011-07-07T16:35:32+00:00monthlyhttps://smathermather.com/2009/12/23/hillshade-cont/https://smathermather.com/wp-content/uploads/2009/12/picture-4.pngDEM Zoomhttps://smathermather.com/wp-content/uploads/2009/12/picture-31.pngDEM 12012-04-27T23:53:42+00:00monthlyhttps://smathermather.com/2010/01/01/lidar-processing-and-analysis-in-postgis-i-hope/https://smathermather.com/wp-content/uploads/2010/01/picture-6_1.pngTest Query Pointshttps://smathermather.com/wp-content/uploads/2010/01/picture-3.pngLiDAR Groundhttps://smathermather.com/wp-content/uploads/2010/01/picture-4.pngLiDAR Veghttps://smathermather.com/wp-content/uploads/2010/01/picture-1.pngLiDAR all points2011-07-07T16:33:16+00:00monthlyhttps://smathermather.com/2010/01/31/mapping-places-unknown-free-global-datasets-and-foss-gis-are-a-great-combo/https://smathermather.com/wp-content/uploads/2010/01/picture-42.pngReserve Map 12011-07-07T16:31:30+00:00monthlyhttps://smathermather.com/2010/01/02/dem-processing-with-gdal-utilities/2011-07-07T16:29:06+00:00monthlyhttps://smathermather.com/2010/01/04/batch-processing-resampling-of-dems/2011-07-07T16:28:03+00:00monthlyhttps://smathermather.com/2010/01/09/modeling-sub-canopy-biophysical-variables-with-povray/https://smathermather.com/wp-content/uploads/2010/01/sundial_tree_ortho_cumulative.pngsundial_tree_ortho_cumulativehttps://smathermather.com/wp-content/uploads/2010/01/sundial_tree_shadow_lengt180.pngsundial_tree_shadow_lengt180https://smathermather.com/wp-content/uploads/2010/01/sundial_tree_shadow_lengt0011.pngsundial_tree_shadow_lengt001https://smathermather.com/wp-content/uploads/2010/01/sundial_tree_shadow_lengt001.pngsundial_tree_shadow_lengt0012011-07-07T16:25:46+00:00monthlyhttps://smathermather.com/2010/01/10/topographic-position-index-and-ecological-land-type-warning-completely-unrefined-not-quite-geologic-dribble-with-bad-maps/https://smathermather.com/wp-content/uploads/2010/01/sn851342.jpgGlaciated Allegheny Plateau Topographic Position Indexhttps://smathermather.com/wp-content/uploads/2010/01/picture-31.pngAllegheny Plateau-- Unglaciated2011-07-07T16:23:34+00:00monthlyhttps://smathermather.com/2010/01/28/clipping-data/https://smathermather.com/wp-content/uploads/2010/01/corrupted_contours.pngCorrupted Contours2011-07-07T16:19:28+00:00monthlyhttps://smathermather.com/2010/01/29/clipping-data-w-postgis-continued/https://smathermather.com/wp-content/uploads/2010/01/clip.pngClipped Contours, PostGIS2011-07-07T16:18:49+00:00monthlyhttps://smathermather.com/2010/02/01/postgis-and-lidar-the-saga-continues/2011-07-07T16:17:59+00:00monthlyhttps://smathermather.com/2010/02/06/rethinking-postgis-analyses-remembering-to-cluster/2011-07-07T16:16:53+00:00monthlyhttps://smathermather.com/2010/02/07/postgis-and-lidar-oops/2011-07-07T16:15:58+00:00monthlyhttps://smathermather.com/2010/02/23/contour-data-and-table-management-in-postgis/2011-07-07T16:15:16+00:00monthlyhttps://smathermather.com/2010/03/06/optimizing-postgis-geometry-functions-mmm-donut/https://smathermather.com/wp-content/uploads/2010/03/homer_simpson_2006.pngmmm.... ... Donut!2011-07-07T16:14:16+00:00monthlyhttps://smathermather.com/2010/04/06/postgis-and-lidar-the-saga-completes/2011-07-07T16:13:19+00:00monthlyhttps://smathermather.com/2010/04/21/trigger-speeeeed-or-triggers-and-data-maintenance-in-postgis/2011-07-07T16:12:44+00:00monthlyhttps://smathermather.com/2010/04/21/further-optimization-of-the-postgis-lidar-vegetation-height-query/https://smathermather.com/wp-content/uploads/2010/04/veg_and_buildings_zoom1.pngveg_and_buildings_zoomhttps://smathermather.com/wp-content/uploads/2010/04/veg_and_buildings1.pngveg_and_buildingshttps://smathermather.com/wp-content/uploads/2010/04/veg_height_5_class1.pngveg_height_5_classhttps://smathermather.com/wp-content/uploads/2010/04/ground_points_at_3_feet_over_veg1.pngground_points_at_3_feet_over_veghttps://smathermather.com/wp-content/uploads/2010/04/ground_points_at_3_feet2.pngground_points_at_3_feethttps://smathermather.com/wp-content/uploads/2010/04/ground_points_at_2_feet2.pngground_points_at_2_feethttps://smathermather.com/wp-content/uploads/2010/04/ground_points2.pngground_pointshttps://smathermather.com/wp-content/uploads/2010/04/veg_and_buildings_zoom.pngveg_and_buildings_zoomhttps://smathermather.com/wp-content/uploads/2010/04/veg_and_buildings.pngveg_and_buildingshttps://smathermather.com/wp-content/uploads/2010/04/veg_height_5_class.pngveg_height_5_class2011-07-07T16:11:47+00:00monthlyhttps://smathermather.com/2010/04/24/cost-of-nearest-neighbor-search-depending-on-distance/https://smathermather.com/wp-content/uploads/2010/04/screen-shot-2010-04-24-at-10-16-28-am.pngNearest Neighbor Search with ST_DWithin2011-07-07T16:10:42+00:00monthlyhttps://smathermather.com/2010/05/26/multi-ring-buffers-in-postgis/https://smathermather.com/wp-content/uploads/2010/05/11.pngmulti-ring bufferhttps://smathermather.com/wp-content/uploads/2010/05/41.pngbuffer ringhttps://smathermather.com/wp-content/uploads/2010/05/31.png3https://smathermather.com/wp-content/uploads/2010/05/61.pngMask with fadehttps://smathermather.com/wp-content/uploads/2010/05/21.pngSimple buffer2011-07-07T16:10:01+00:00monthlyhttps://smathermather.com/2010/07/08/pgagent-when-triggers-are-too-much/2013-08-28T09:23:01+00:00monthlyhttps://smathermather.com/2010/07/19/shapfile-spatial-indices-and-postgis-dumps/https://smathermather.com/wp-content/uploads/2010/07/presentation31.pngdata flowhttps://smathermather.com/wp-content/uploads/2010/07/presentation3.pngPresentation32011-07-07T16:08:06+00:00monthlyhttps://smathermather.com/2010/09/09/sqlmmore-acrobatics/2011-07-07T16:06:22+00:00monthlyhttps://smathermather.com/2011/01/30/landscape-position-and-mcnab-indices-cont/https://smathermather.com/wp-content/uploads/2011/01/screen-shot-2011-01-30-at-3-07-16-pm.pngScreen shot 2011-01-30 at 3.07.16 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scale snapshothttps://smathermather.com/wp-content/uploads/2011/05/zoom_in.pngzoom_in1" = 50' scale snapshothttps://smathermather.com/wp-content/uploads/2011/05/pyramids.pngpyramidshttps://smathermather.com/wp-content/uploads/2011/05/clipboard04.pngClipboard04https://smathermather.com/wp-content/uploads/2011/05/clipboard031.pngClipboard03https://smathermather.com/wp-content/uploads/2011/05/clipboard021.pngClipboard02https://smathermather.com/wp-content/uploads/2011/05/clipboard011.pngClipboard01https://smathermather.com/wp-content/uploads/2011/05/clipboard03.pngClipboard03https://smathermather.com/wp-content/uploads/2011/05/clipboard02.png1 ft summaryhttps://smathermather.com/wp-content/uploads/2011/05/clipboard01.pngImage 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