{"id":4099,"date":"2019-04-25T09:15:20","date_gmt":"2019-04-25T07:15:20","guid":{"rendered":"http:\/\/viscomp.alexandra.dk\/?page_id=4099"},"modified":"2019-05-15T15:24:05","modified_gmt":"2019-05-15T13:24:05","slug":"viscom-lab-demo-zone","status":"publish","type":"page","link":"https:\/\/viscomp.alexandra.dk\/?page_id=4099","title":{"rendered":"Viscom Lab Demo Zone"},"content":{"rendered":"\n<p><strong>Enough talk, show me something!<\/strong><\/p>\n\n\n\n<p>Here we will try to maintain a list of nice demos that we made in the lab.<\/p>\n\n\n\n<h3>Interactive Ray Marching in WebAsm<\/h3>\n\n\n\n<p><a href=\"http:\/\/daimi.au.dk\/thomaskj\/tutorials\/RayKarstenWASM\/iframe.html\">http:\/\/daimi.au.dk\/thomaskj\/tutorials\/RayKarstenWASM\/iframe.html<\/a><\/p>\n\n\n\n<h4 id=\"RKInspiration-Webviz(webviz.alexandra.dk)\">Webviz (<a href=\"http:\/\/webviz.alexandra.dk\/\">webviz.alexandra.dk<\/a>)<\/h4>\n\n\n\n<p>Webviz is an online, browserbased visualization platform for volumetric dataset such as 3D scalar- and vector field, including timedependence (i.e. 4D). Webviz was designed as a social medium platform where researchers can upload and share 3d voxeldataset. <\/p>\n\n\n\n<p>Techniques: WebGL 2.0, WebVR, HTML5 Gamepad API.&nbsp;<\/p>\n\n\n\n<p>Example in browser mode and in virtual reality mode.&nbsp;<a href=\"http:\/\/bit.ly\/2o8BRt0\">http:\/\/bit.ly\/2o8BRt0<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/confluence.alexandra.dk\/download\/attachments\/79102420\/Selection_018.png?version=1&amp;modificationDate=1556175829798&amp;api=v2\" alt=\"\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4 id=\"RKInspiration-Danishheightmodel(denmark3d.alexandra.dk)\">Danish height model<\/h4>\n\n\n\n<h4 id=\"mce_12\"><a href=\"http:\/\/denmark3d.alexandra.dk\/\">denmark3d.alexandra.dk<\/a><\/h4>\n\n\n\n<p>Online browserbased 3D visualization of the Danish national elevation model (DHM 2015). The whole country was laserscanned in 2015 to produce an elevationmodel (2.5D) with a horizontal resolution of 40 cm x40 cm which corresponds to a raster size on the order of one terapixels. We have implemented an out-of-core streaming technique to handle these massive amounts of data. This work includes preprocessing of terabytes of data and implementing a backend infrastructure to serve datastreams. In addition to the raw surface model (upper picture), we have experimented with combining terrain, buildings as polygons and pointclouds (lower picture). Techniques: WebGL 1.0, Web map tile service&nbsp;(WMTS)&nbsp;backend.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enough talk, show me something! Here we will try to maintain a list of nice demos that we made in the lab. Interactive Ray Marching in WebAsm http:\/\/daimi.au.dk\/thomaskj\/tutorials\/RayKarstenWASM\/iframe.html Webviz (webviz.alexandra.dk) Webviz is an online, browserbased visualization platform for volumetric dataset such as 3D scalar- and vector field, including timedependence (i.e. 4D). Webviz was designed as a social medium platform where researchers can upload and share 3d voxeldataset. Techniques: WebGL 2.0, WebVR, HTML5 Gamepad API.&nbsp; Example in browser mode and in virtual reality mode.&nbsp;http:\/\/bit.ly\/2o8BRt0 Danish height model denmark3d.alexandra.dk Online browserbased 3D visualization of the Danish national elevation model (DHM 2015). The whole country was laserscanned in 2015 to produce an elevationmodel (2.5D) with a horizontal resolution of 40 cm x40 cm which corresponds to a raster size on the order of one terapixels. We have implemented an out-of-core streaming technique to handle these massive amounts of data. This work includes preprocessing of terabytes of data and implementing a backend infrastructure to serve datastreams. In addition to the raw surface model (upper picture), we have experimented with combining terrain, buildings as polygons and pointclouds (lower picture). Techniques: WebGL 1.0, Web map tile service&nbsp;(WMTS)&nbsp;backend.<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=\/wp\/v2\/pages\/4099"}],"collection":[{"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4099"}],"version-history":[{"count":3,"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=\/wp\/v2\/pages\/4099\/revisions"}],"predecessor-version":[{"id":4107,"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=\/wp\/v2\/pages\/4099\/revisions\/4107"}],"wp:attachment":[{"href":"https:\/\/viscomp.alexandra.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}