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Autocad 2004 AutoCAD is a CAD(Computer Aided Design or Computer Aided Drafting) software application for 2D and 3D Designing and Drafting, developed and sold by Autodesk .inc Initially released in late 1982, AutoCAD was one of the first CAD programs to run on personal computers, and notably the IBM PC. Most CAD software at the time ran on graphics terminals connected to mainframe computers or mini-computers. In earlier releases, AutoCAD used primitive entities � such as lines, polylines, circles, arcs, and text � as the foundation for more complex objects. Since the mid-1990s, AutoCAD has supported custom objects through its C++ API. Modern AutoCAD includes a full set of basic solid modeling and 3D tools. With the release of AutoCAD 2007 came improved 3D modeling functionality, which meant better navigation when working in 3D. Moreover, it became easier to edit 3D models. The mental ray engine was included in rendering, it was now possible to do quality renderi

AUTOCAD 2010 Autocad 2010 is one of the most exciting releases in AutoCAD. It offers new features across the board, so that almost everyone will find something valuable. AutoCAD 2010 has several new features as Dynamic Blocks More compelling authoring environment Easier to author dynamic blocks flexible and powerful dynamic blocks with Constraint Parameters Easy understanding and later edit authored behavior A Test block without exiting Block Editor Deployment � Added the ability for a CAD Manager to create Advanced User Profiles � Dynamic paths in the registry � All user-customizable support files should be installed to Roaming AppData by default � Allow choice for support content location

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HEC-RAS has the ability to import three-dimensional river schematic and cross section data created in a GIS or CADD system.While the HEC RAS software only utilizes two dimensional data during the computations,the 3D information is used in the program for display purposes.After the user has completed a hydraulic analysisi,the computed water surface profiles can be exported back to the GIS or CADD system for development and display of a floodplain map. The importing and exporting of GIS or CADD data is accomplished through the use of formatted ASCII text files,The text files provide a generic way of exchanging data between GIS/CADD systems and HEC -RAS,without adopting any single GIS/CADD system. The HEC has developed a set of macros for Arc Info(using Arc Macro Language,AML) that will allow a user to write the geometric data in the required format as well as read the HEC-RAS results and perform the floodplain mapping. To view more download this chapter Download GIS with HEC RAS ebook

HEC RAS Working with HEC RAS an overview HEC RAS is an itergrated package of hydraulic analysis programs,in which the user interacts with the system through the use of a Graphical User Interface.The system is capable of Performing Steady Flow Water surface profile calculations and will include unsteady flow,sediment transport and several hydraulic design computations in the future. In HEC-RAS terminolgy, a project is a set of data files associated with a particular river system.The modeler can perform any or all of the various types of analyses,included in the HEC RAS package,as part of the project.The data files for a project are categorized as follows;plan data,geometric data,steady flow data,unsteady flow data,sediment data and hydraulic design data. Contents Starting HEC RAS Steps in Developing a Hydraulic Model with HEC RAS Importing HEC-2 Data Reproducing HEC-2 Results Getting and Using Help Download this HEC RAS ebook http://www.docstoc.com/docs/70199729/Working-with-HEC-RAS

HEC RAS This Chapter provides an example application ofhow to perfom steady flow water surface profile calculations with HEC-RAS.The user is taken through a step by step procedure of how to enter data,perfom calculations,and view the results. Contents Starting a New Project Entering Geometric Data Entering Steady Flow Data Performing the Hydraulic Calculations Viewing Results Printing Graphics and Tables Exiting the Program Download HEC RAS Manual http://www.docstoc.com/docs/70199783/Performing-steady-flow-water-profile-surface-calculations-in-HEC-RAS

Watercad manual WaterCAD is a powerful yet easy to use program that helps engineers design and analyze complex pressurized piping systems. WaterCAD�s powerful graphical interface (both in Stand-Alone and AutoCAD mode) makes it easy to quickly lay out a complex network of pipes, tanks, pumps, and more. You can use WaterCAD to: � Perform steady-state analyses of water distribution systems with pumps, tanks, and control valves. � Perform extended period simulations to analyze the piping system's response to varying supply and demand schedules. � Perform water quality simulations to determine the water source and age, or track the growth or decay of a chemical constituent throughout the network. � Perform Fire Flow Analyses on your system to determine how your system will behave under extreme conditions. � Use the powerful Scenario Management features to mix and match a variety of "What If?" alternatives on your system. Create multiple sets of hydraulic, physical prop

HEC RAS Download HEC RAS output Variables http://www.docstoc.com/docs/70195396/HEC-RAS-output-Variables