http://www.spdlib.org/ 2013-05-25T18:28:29+00:00 http://www.spdlib.org/ http://www.spdlib.org/lib/tpl/monobook/images/favicon.ico text/html 2012-12-15T05:02:55+00:00 dallas621 http://www.spdlib.org/doku.php?id=soldpost024&rev=1355547775&do=diff ล่าสุด มีการตั้งกลุ่มเฟซบุ๊ก “เสี่ยงดวง” ขึ้นมา เพื่อขาย “เบอร์ทอง” หรือ “หวยทอง” แต่เนื่องจากทองมีราคาแพง จึงปรับเปลี่ยนของรางวัลเป็นไอโฟน, ไอแพด, แกแล็คซี่เอส และเงินสดกว่า 2 หมื่นบาท หวยซอง หากถูกรางวัลเลือกได้เพียงอย่างเดียวเท่านั้น “หวยทองออนไลน์” กำลังเป็นที่นิยมในกลุ่มพนักงานบริษัทห้างร้านทั่วไป จากการสำรวจพบว่า เบอร์ทองนั้นขายในราคาถูก และหากเสี่ยงดวงถูกรางวัลนั้น สิ่งของที่ได้จะมีมูลค่ามากกว่าการลงทุนหลายเท่าตัวนัก<br /><br />กลุ่มปิดในเฟซบุ๊กของบริษัทชิปปิ้งแห่งหนึ่ง มีการเปิดกลุ่มขึ้… text/html 2012-12-06T00:07:11+00:00 Adrian Fisher http://www.spdlib.org/doku.php?id=spdlib:users:formats:spd&rev=1354752431&do=diff The library takes it name after the sorted pulse data (SPD) format, the format is a definition of how the data should be stored within a HDF5 file. The format supports the storage and manipulation of both discrete returns, decomposed returns and full waveform data either individually or alongside one another (i.e., waveforms can be linked to individual points). The format is structured base on pulses (rather than individual points) which therefore means that both the transmitted and received inf… text/html 2012-11-24T09:13:13+00:00 John Armston http://www.spdlib.org/doku.php?id=spdlib:developers:python:h5py&rev=1353748393&do=diff Introduction The h5py project provides an Python interface to the HDF5 file format, therefore provides an Python interface to SPD files independent of SPDLib. Initial testing suggests h5py is at least 10 times faster than the SPDLib Python bindings for simple read tasks. Further development to link pulses and points in an object oriented way and to write SPD files is required and ongoing. text/html 2012-09-29T20:10:55+00:00 Mattias Nyström http://www.spdlib.org/doku.php?id=start&rev=1348949455&do=diff These pages are for publicly documenting SPDLib. If you would like to contribute please register. What is SPDLib? SPDLib is a set of open source software tools for processing laser scanning data (i.e., LiDAR), including data captured from airborne and terrestrial platforms. The aim of the software is provide you, the user, with the tools you need to process these data. The software grow out of our needs for LiDAR processing and has continued to grow. One of the key features which differentiat… text/html 2012-09-29T20:05:09+00:00 Mattias Nyström http://www.spdlib.org/doku.php?id=spdlib:general:installation:linux&rev=1348949109&do=diff Currently there are no binary releases available and needs to be installed from source. The default parameters should 'just work' but you may need to set the path to the libraries and executables on some flavours. See the general installation guide for details. text/html 2012-09-01T18:48:55+00:00 Daniel Clewley http://www.spdlib.org/doku.php?id=spdlib:general:installation:installation&rev=1346525335&do=diff As with all software and your particular configuration installation can be very simple or complicated with everything in-between. Binary Release Currently, there is only a binary release for Mac OSX (see the Mac OSX specific guide). Although, in the future more binary releases will be made. text/html 2012-08-27T14:54:47+00:00 Mattias Nyström http://www.spdlib.org/doku.php?id=spdlib:users:commands:spdmetrics&rev=1346079287&do=diff General The spdmetrics command allows a range of values to be retrieved from the SPD file and used within calculations where outputs can be either in the form of a raster (where the pixel resolution is the same as the SPD file bin size) or a polygon shapefile. Multiple metrics can be calculated at the same time where they are listed within an XML file. text/html 2012-08-06T17:11:44+00:00 Mattias Nyström http://www.spdlib.org/doku.php?id=spdlib:general:faq:faq&rev=1344273104&do=diff How are the coordinates defined in the SPD format? The pulses are defined in the following way: r = radius phi = azimuth theta = zenith r >= 0 0 <= theta < pi 0 <= phi < 2*pi phi = 0 is true north theta = 0 is vertical “up” view ALS scan angle = pi - zenith text/html 2012-08-02T19:36:08+00:00 Daniel Clewley http://www.spdlib.org/doku.php?id=spdlib:users:tutorials:tutorials&rev=1343936168&do=diff This page provides a links to a range of tutorials. If you are new to SPDLib it is suggested that you first follow the basic tutorials and from then on pick and choose the move advanced tutorials based on your needs. When visualisation is referred to within the tutorials one of two things may be meant. If you the output you are visualising is a raster then a viewer such as ENVI or Erdas Imagine is recommended although free alternatives such as QGIS are also OK. When visualising the 3D LiDAR dat… text/html 2012-07-23T13:01:26+00:00 Mattias Nyström http://www.spdlib.org/doku.php?id=spdlib:users:users&rev=1343048486&do=diff The purpose of this page is to provide you the user with an overview of the supported file formats and available commands lines tools with details on there use. For further practical examples see the example pages Tutorials can be found on the tutorials page text/html 2012-07-23T13:00:42+00:00 Mattias Nyström http://www.spdlib.org/doku.php?id=spdlib:users:commands:spddecomp&rev=1343048442&do=diff General This command is applied to an unsorted SPD file (and produces a unsorted SPD file ?) and decomposes the waveform, using Gaussian Decomposition, to extract individual returns. To initialise the decomposition the zero crossing algorithm (i.e., a change in gradient from positive to negative) is used to find the starting points. To minimise errors due to the “ringing” effect a decay function is used to increase the noise threshold (set using the --decay and --decaythres parameters), a noise…