Practical IDL programming - PDF Free Download
In , we formed a technology and marketing alliance with Fortner Software LLC, this alliance will provide desktop data access and visualization application through the integration of Noesys and IDL. Research Systems also has a Professional Services Group, which provides consulting services such as training, on-site training, shoulder to shoulder training, building prototypes, optimizing code, and developing full applications.
There are approximately full time employees at Research Systems, Inc. When entering into a long-term agreement with any vendor we recognize that one aspect of the selection criteria is the stability of the company. RSI has never had a layoff or reduction in force in the 21 year company history. While RSI is privately held, we are disclosing certain financial information that is confidential for the purpose of assisting UCAR is verifying the profitability and balance sheet position of our firm.
Please refer to the Financial Statement Attachments that outlines confidential financial information about Research Systems, Inc. Site License Agreement this document. Updates to newer versions of the IDL software will be provided as part of the on going software maintenance agreement that is part of this agreement. Technical Support is not included as part of this contract, but is offered as an option on a per-person or group based support basis. This agreement includes the non-exclusive, non-transferable grant to use the IDL Software at the locations and facilities identified below in this agreement.
Additions of these or other future product offerings by RSI must be included under a separate or amended site license agreement. Further, Licensee agrees to instruct its end users as to their obligations under the terms of this Agreement. At the conclusion of this agreement, if the Licensee has purchased the optonal annual software maintenance, then the Licensee may elect to continue to purchase Software Maintenance for the IDL software licenses, may elect to not continue software maintenance payments to RSI, or may request to negotiate a new agreement with RSI.
Licensee can continue to receive software maintenance updates from RSI after the contract expiration by paying a flat fee per year for the following five years after the end of this agreement. If at any time the Licensee has let the software maintenance lapse for more than 90 consecutive days, then the licensee shall not be eligible to receive software maintenance at the rates described in this contract. IDL does not itself manage or use the system time, it simply passes the system time through to the user.
For example, under Unix operating systems, time is kept as a count of the number of seconds since Jan 1, , and does not have a year problem. We are unaware of any problems on any other of the operating systems supported by IDL Digital Equipment's OpenVMS, Microsoft's Windows, Apple's MacOS but the definitive verification of the year compliance of these proprietary operating systems must be made by their respective vendor.
Please note that while IDL is year compliant, there exists the possibility that some programs written in IDL by others may have year complications due to the way in which the program was written. This agreement shall be effective upon execution by both parties and shall remain in force to September 30, You may not assign, transfer or sublicense your rights under this Agreement without prior written permission of Research Systems, Inc.
This Agreement constitutes the entire agreement between the parties relating to the subject matter hereof. All prior or contemporaneous agreements, whether written or oral, among themselves or their agents and representatives relating to the subject hereof are merged into this Agreement. This Agreement may be altered, amended, or revoked only by an instrument in writing signed by all the parties hereto. This Agreement shall be governed and interpreted in accordance with the laws of the State of Colorado.
You may have as many concurrent users on the single CPU as is specifically authorized by the license fees paid. If the License is for network use, RSI grants you the right to use the Software on a computer network as follows: You may have as many copies of the Software in simultaneous use on the network as is specifically authorized by the license fees paid.
If the License is for use with a hardware key supplied by RSI, you may use the software on any machine with the RSI provided hardware key attached. Manufacturer is Research Systems, Inc.
Practical IDL programming
The Software and Documentation is protected by United States copyright laws and international treaty provisions. Tools for 3D scientific visualization in computational aerodynamics. The purpose is to describe the tools and techniques in use at the NASA Ames Research Center for performing visualization of computational aerodynamics, for example visualization of flow fields from computer simulations of fluid dynamics about vehicles such as the Space Shuttle.
The hardware used for visualization is a high-performance graphics workstation connected to a super computer with a high speed channel. The three techniques used for visualization are post-processing, tracking, and steering. Post-processing analysis is done after the simulation. Tracking analysis is done during a simulation but is not interactive, whereas steering analysis involves modifying the simulation interactively during the simulation.
Using post-processing methods, a flow simulation is executed on a supercomputer and, after the simulation is complete, the results of the simulation are processed for viewing. The software in use and under development at NASA Ames Research Center for performing these types of tasks in computational aerodynamics is described. Workstation performance issues, benchmarking, and high-performance networks for this purpose are also discussed as well as descriptions of other hardware for digital video and film recording.
Although it is designed to be a generic tool , the primary motivation for developing the new software is 1 to provide an updated tool to browse MDSplus data, with functionalities beyond dwscope and jScope, and 2 to provide a universal foundation to construct interface tools to perform computer simulation and modeling for Alcator C-Mod. It provides many features to visualize MDSplus data during tokamak experiments including overplotting different signals and discharges, various plot types line, contour, image, etc. Additionally, the logic to produce multi-panel plots is designed to be backward compatible with dwscope, enabling smooth migration for dwscope users.
A built-in tree data browser allows a user to approach the data structure both from a GUI and a script, enabling relatively complex data analysis workflow to be built quickly. This workflow is being used to generate a large database to develop a LHCD actuator model for the plasma control system. In this position paper we discuss successes and limitations of current evaluation strategies for scientific visualizations and argue for embracing a mixed methods strategy of evaluation.
The most novel contribution of the approach that we advocate is a new emphasis on employing design processes as practiced in related fields e. To motivate this position we describe a series of recent evaluations of scientific visualization interfaces and computer graphics strategies conducted within our research group.
ParaDucks Research Group Annotated Bibliography
Complementing these more traditional evaluations our visualization research group also regularly employs sketching, critique, and other design methods that have been formalized over years of practice in design fields. Our experience has convinced us that these activities are invaluable, often providing much more detailed evaluative feedback about our visualization systems than that obtained via more traditional user studies and the like. We believe that if design-based evaluation methodologies e.
PubMed Central. Hardware, software, and techniques used by the Fluid Dynamics Division NASA for performing visualization of computational aerodynamics, which can be applied to the visualization of flow fields from computer simulations of fluid dynamics about the Space Shuttle, are discussed. Using post-processing methods a flow simulation was executed on a supercomputer and, after the simulation was complete, the results were processed for viewing. It is shown that the high-resolution, high-performance three-dimensional workstation combined with specially developed display and animation software provides a good tool for analyzing flow field solutions obtained from supercomputers.
click Journals fill several important roles within academic medicine, including building knowledge, validating quality of methods, and communicating research. This section provides an overview of these roles and highlights innovative approaches journals have taken to enhance dissemination of research.
As journals move away from print formats and embrace web-based content, design-centered thinking will allow for engagement of a larger audience. Examples of recent efforts in this realm are provided, as well as simplified strategies for developing visual abstracts to improve dissemination via social media. Finally, we hone in on principles of learning and education which have driven these advances in multimedia-based communication in scientific research.
Program Supports Scientific Visualization. GVS is written in C language. Perceptual issues in scientific visualization. In order to develop effective tools for scientific visulaization, consideration must be given to the perceptual competencies, limitations, and biases of the human operator. Perceptual psychology has amassed a rich body of research on these issues and can lend insight to the development of visualization tehcniques. Within a perceptual psychological framework, the computer display screen can best be thought of as a special kind of impoverished visual environemnt.
The U. Equipment including color printers, black-and-white and color scanners, film recorders, video equipment, and DOS, Apple Macintosh, and UNIX platforms with software are available for both technical and nontechnical users. The laboratory staff provides assistance and demonstrations in the use of the hardware and software products.
Scientific Visualization , Seeing the Unseeable. June 24, Berkeley Lab lecture: Scientific visualization transforms abstract data into readily comprehensible images, provide a vehicle for "seeing the unseeable," and play a central role in bo June 24, Berkeley Lab lecture: Scientific visualization transforms abstract data into readily comprehensible images, provide a vehicle for "seeing the unseeable," and play a central role in both experimental and computational sciences.
Wes Bethel, who heads the Scientific Visualization Group in the Computational Research Division, presents an overview of visualization and computer graphics, current research challenges, and future directions for the field. Visual representation of scientific information. Great technological advances have enabled researchers to generate an enormous amount of data. Data analysis is replacing data generation as the rate-limiting step in scientific research. With this wealth of information, we have an opportunity to understand the molecular causes of human diseases.
However, the unprecedented scale, resolution, and variety of data pose new analytical challenges. Visual representation of data offers insights that can lead to new understanding, whether the purpose is analysis or communication. This presentation shows how art, design, and traditional illustration can enable scientific discovery. Examples will be drawn from the Broad Institute's Data Visualization Initiative, aimed at establishing processes for creating informative visualization models.
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The Exploratorium, a hands-on science museum, explores local environmental conditions of San Francisco Bay to connect audiences to the larger global implications of ocean acidification and climate change. The work is centered in the Fisher Bay Observatory at Pier 15, a glass-walled gallery sited for explorations of urban San Francisco and the Bay.
Interactive exhibits, high-resolution data visualizations , and mediated activities and conversations communicate to public audiences the impacts of excess carbon dioxide in the atmosphere and ocean. Through a year education partnership with NOAA and two environmental literacy grants funded by its Office of Education, the Exploratorium has been part of two distinct but complementary strategies to increase climate literacy beyond traditional classroom settings. We will discuss two projects that address the ways complex scientific information can be transformed into learning opportunities for the public, providing information citizens can use for decision-making in their personal lives and their communities.
The Visualizing Change project developed " visual narratives" that combine scientific visualizations and other images with story telling about the science and potential solutions of climate impacts on the ocean. The narratives were designed to engage curiosity and provide the public with hopeful and useful information to stimulate solutions-oriented behavior rather than to communicate despair about climate change.
Training workshops for aquarium and museum docents prepare informal educators to use the narratives and help them frame productive conversations with the pubic. The Carbon Networks project, led by the Exploratorium, uses local and Pacific Rim data to explore the current state of climate change and ocean acidification.
Virtual Environments in Scientific Visualization. Virtual environment technology is a new way of approaching the interface between computers and humans. Emphasizing display and user control that conforms to the user's natural ways of perceiving and thinking about space, virtual environment technologies enhance the ability to perceive and interact with computer generated graphic information. This enhancement potentially has a major effect on the field of scientific visualization.
This talk will be describe several implementations of virtual environments for use in scientific visualization. Examples include the visualization of unsteady fluid flows the virtual windtunnel , the visualization of geodesics in curved spacetime, surface manipulation, and examples developed at various laboratories. As geoscientists are confronted with increasingly massive datasets from environmental observations to simulations, one of the biggest challenges is having the right tools to gain scientific insight from the data and communicate the understanding to stakeholders.
Recent developments in web technologies make it easy to manage, visualize and share large data sets with general public. Novel visualization techniques and dynamic user interfaces allow users to interact with data, and modify the parameters to create custom views of the data to gain insight from simulations and environmental observations. This requires developing new data models and intelligent knowledge discovery techniques to explore and extract information from complex computational simulations or large data repositories.