The latest PostGIS and QGIS 3D enhancements presented at by Oslandia are available online.We suggest you to have a look on our PostGIS 3D / QGIS 3D video demonstration using SFCGAL library and the QGIS Horao plugin. A step by step workshop, (really close to the video workflow) is also available online We can provide you the full virtual machine on demand, with proper software environment (6GB Virtual Box Image). We would be really interested in having your advice on these new 3D features, and the use cases you could be interested in. Do not hesitate to get in touch.

Jan 27, 2012. See this ESRI KB article on publishing ECWs to ArcGIS Server - it requires special (extra) licensing from ERDAS. This may be your issue. Also, are you able to publish any map service? Sep 21, 2010. For ECW support in ArcGIS Server see: For streaming ECW and JP2 data. JPEG2000 is an ISO-certified wavelet compression image format that is commonly used for geospatial imagery. The format is defined by the.

Contact us at infos+foss4g@oslandia.com for any information. Developers and contributors from the are used to gather physically twice a year across different countries. Such an event allows people to synchronize their effort, and discuss new possible developments.cThe latest QGIS community meeting took place in Brighton from the 12th to the 16th of September, just before the FOSS4G event. It was the biggest community meeting organized so far, with close to 50 people attending! Everything went smooth thanks to the perfect organization. This session was of particular interest in the project’s history, since it was dedicated to the release of the eagerly-awaited new 2.0 version of QGIS.

Oslandia is used to take part in the event and even organized the march 2012 session in Lyon. Presentations Despite being originally oriented toward code and translations, some presentations took place during the event. Some of them have been video recorded, some did not. Hereafter is a subset of them.

A new website In parallel to the release of the 2.0 version, the QGIS website has been updated. Its look and feel, but also the way it is now build. Richard Duivenvoorde presented the efforts that have been put on the support of multiple languages, adaptation to mobile devices, and the reuse of tools used for building the documentation of the project.

The new is now online. Richard presenting the new website Presentation of the new website: Constraints on attributes Some more developer-oriented presentations and discussions also took place. Matthias Kuhn and Nathan Woodrow presented an idea about extending the way attributes are handled by QGIS.

In particular, the concept of constrained attributes emerged. The idea is to be able to express, manipulate and edit contrains on attributes (possible range of values for instance) as it is found in databases. Elementi Di Fisica Meccanica E Termodinamica Pdf Creator. This could then be used to constrain user editing of layers, presenting to the user an appropriate widget (combo box for an enumeration for instance), especially for layers that do not have native support for these constraints.

QGIS for Android tablets presented their work on what they called the “QGIS Mobility framework”, based on previous works by Marco Bernasocchi on QGIS for Android. It is dedicated to the design of custom QGIS applications for deployment on Android tablets (for on-the-field editing campains for instance). It looks promising and has already been used in a real-world application for gaz pipeline inspection.

The framework can be found on. QGIS webserver Andreas Neumann presented evolutions of QGIS webserver and webclient. More can be found in the corresponding video.

Matthias presenting its work on the Globe plugin Video 2 Visualisation of 3D data Oslandia presented also its ongoing work on the integration of Postgis 3D. After a thourought evaluation of osgearth, which is the base of the Globe plugin, we decided to develop our own 3D visualisation directly on top of OpenSceneGraph.

A QGIS plugin has also been developed in order to be able to view QGIS layers in 3D. With this new 3D visualisation stack we are able to display and manipulate data of a whole city between 20 and 60 frames per second on a laptop (here the demo has been designed on data from the city of Lyon), when we were hardly able to display a small city quarter with Globe. QGIS 2.5D renderer and view in Google Maps not bad at all! Except for a few glitches concerning the small towers at the corners of the building, and some situations where it seems like the wrong building part is drawn in the front, the 2.5D look is quite impressive. Now, how does this compare to Qgis2threejs, one of the popular plugins which uses web technologies to render 3D content?

One obvious disadvantage of Qgis2threejs is that we cannot define a dedicated roof color. Thus the whole block is drawn in the same color. On the other hand, Qgis2threejs does not suffer from the rendering order issues that we observe in the QGIS 2.5D renderer and the small towers in the building corners are correctly displayed as well. Click for the interactive version (requires WebGL-capable browser) 1. The data The building blocks of this visualization are: • elevation data and the hillshade derived from this data • a base map (WMTS from in my case) • OSM building data provided by and • from the city of Vienna Load all datasets into QGIS. Preparing the map Qgis2threejs will overlay the map (as rendered in the QGIS map area) on top of the elevation model. You can combine any number of layers to create your map.

I just loaded a basemap.at WMTS and a hillshade layer. To add a nice tree shadow effect, I also added the tree layer (dark grey, 50% transparency, multiply blending). Preparing the vector features The vector features in the visualization are buildings and trees. The buildings are based on an OSM building layer. The trees are create from two point layers: one point layer to create the tree trunks (cylinder shape) and a duplicate of this point layer to create the tree crowns (sphere shape). Load the data and choose the desired fill colors.

Using Qgis2threejs Now we can start Qgis2threejs. The first tab is used to configure the terrain.

Just pick the correct elevation data layer. I didn’t modify any of the other default settings. The second tab provides the settings for the vector data. As mentioned in the previous section, the trees are created from two point layers and the buildings are based on a polygon layer. The tree crowns are spheres with a radius size 3 and a z value of 5 above the surface. The tree trunks are cylinders. Finally, the buildings have a height of 10.

Just press “run” and wait. When the export is finished, your default browser (or a different one, if you specify another one in the plugin settings) will open automatically and display the results. The visualization is interactive.

You can tilt the visualization using the left mouse button, pan using the right mouse button, and zoom using the mouse wheel. I found that Firefox used around 1.6 GB of RAM to render this example.

Share your visualization In the browser window, you will see where Qgis2threejs stored the html and associated Javascript files. To share your visualization, you just need to copy these files onto a webserver. I would love to see what you come up with.

Please share a link in the comments. The Region of Umbria, Italy, sponsored 4 days of work to update QGIS Globe for current QGIS versions. Most of the functionality is working again and the globe is now compatible with osgEarth 1.0 up to 1. Corporate Seal Stamp Template Kids. 3. The bad news is, that the globe plugin is not working on Windows with OSGeo4W.

It seems that one of the OSGeo4W libraries (GDAL?) is compiled with an incompatible MS compiler version. Christmas holidays are coming At least it gives Linux users the possibility to play with the globe using the current development version and do exciting stuff like Oslandia does: Imagine someone would sponsor four weeks of QGIS Globe work! Always wanted your very own 3d scanner? Try Kinect: Many people have experimented with using the Kinect for more than just user interaction. One thing that I have been very interested in is extracting point clouds from the device.

People at the ROS (ros.org) project have gone to some trouble to determine empirical calibration parameters for the depth camera (disparity to real-world depth) here, and Nicolas Burrus has posted parameters for the RGB camera (relationship between the depth image and th via.

ECW v3 - ECW/JP2 SDK v5.3 (June 14, 2016) Type of format Website ECW ( Enhanced Compression Wavelet) is a optimized for aerial and satellite imagery. It was developed by Earth Resource Mapping, and is now owned by part of. The format efficiently compresses very large images with fine alternating contrast while retaining their visual quality. In 1998 ER Mapper Ltd in company founder Stuart Nixon, and two software developers Simon Cope and Mark Sheridan were researching rapid delivery of terabyte sized images over the internet using inexpensive server technology. The outcome of that research was two products, Image Web Server (IWS) and ECW. ECW represented a fundamental mathematical breakthrough enabling (DWT) and inverse-DWT operations to be performed on very large images very quickly, while only using a tiny amount of RAM. For ECW patents, see and.

For IWS patent, see. These patents were assigned to ERDAS (under a former name of Leica Geosystems Geospatial Imaging) July 29, 2007. After became an image standard, ER Mapper added tools to read and write JPEG2000 data into the ECW SDK to form the ECW JPEG2000 SDK. After subsequent purchase by ERDAS (themselves subsequently merged into Intergraph), the software development kit was renamed to the ERDAS ECW/JP2 SDK.

Of the SDK was released on 2 July 2013. Properties [ ] information can be embedded into the ECW file format to support applications. Image data of up to 65,535 bands (layers or colors) can be compressed into the ECW v2 or v3 file format at a rate of over 25 per second on an i7 740QM (4-cores) 1.731 processor using v4.2 of the ECW/JP2 SDK. Data flow compression allows for compression of large images with small requirements.

The file format can achieve typical compression ratios from 1:2 to 1:100. The ECW Protocol (ECWP) is an efficient streaming protocol used to transmit ECW and JPEG2000 images over networks, such as the Internet. ECWP supports ECWPS for private and secure encrypted streaming of image data over public networks such as the Internet. There is a very fast read-only SDK supporting ECW and JPEG2000 which is available for no charge for desktop implementation for Windows, Linux and MacOSX. A read / write SDK can be purchased for desktop and server implementations for Windows, Linux and MacOSX). A full functioning server implementation (using ECW, JPEG2000, ECWP and JPIP) is available within the (formerly IWS) license.

A previous version of the SDK (3.3) is available in open source, and can be used for non-Microsoft operating systems, such as Linux, macOS or Android. References [ ].