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<br />Chapter 3 Working With HEC-RAS - An Overview <br /> <br />the bottom of the Steady Row Analysis window. When this button is pressed, <br />the HEC-RAS system packages up all the data for the selected plan and writes <br />it to a run file. The system then runs the steady flow model (SNET) and <br />passes it the name of the run file. This process is executed in a separate <br />window. Therefore, the modeler can work on other tasks while it is <br />executing. <br /> <br />Viewing and Printing Results <br /> <br />Once the model has finished all of the computations, the modeler can begin <br />viewing the results. Several output features are available under the View <br />option from the main window. These options include: cross, section plots; <br />profile plots; rating curve plots; X- Y -Z perspective plots; tabular output at <br />specific locations; tabular output for many locations; and the summary of <br />errors, warnings, and notes. <br /> <br />An example of a cross section plot is shown in Figure 3.8. The user can plot <br />any cross section by simply selecting the appropriate reach and river station <br />from the list boxes at the top of the plot. The user can also step through the <br />plots by using the up and down arrow buttons. Several plotting features are <br />available under the Options menu of the Cross Section plot. These options <br />include: zoom in; zoom out; selecting which plans, profiles and variables to <br />plot; and control over the lines, symbols, labels, scaling, and grid options. <br /> <br />Hard copy outputs of the graphics can be accomplished in two different ways. <br />Plots can be sent directly from HEC-RAS to whichever printer or plotter the <br />user has defined under the Windows Print Manager. Plots can also be sent to <br />the Windows clipboard. Once the plot is in the clipboard it can then be pasted <br />into other programs, such as a word processor. Both of these options are <br />available from the File menu on the various plot windows. <br /> <br />An example of a profile plot is shown in Figure 3.9. All of the options <br />available in the cross section plot are also available in the profile plot. <br />Additionally, the user can select which specific reaches to plot when a <br />multiple-reach river system is being modeled. <br /> <br />An example of an X-Y-ZPerspective Plot is shown in Figure 3.10. The user <br />has the option of defining the starting and ending location for the extent of the <br />plot. The plot can be rotated left or right, and up or down, in order to get <br />different perspectives of the river reach. The computed water surface can be <br />overlaid on top of the cross section data. The graphic can be sent to the <br />printer or plotter directly, or the plot can be sent through the Windows <br />Clipboard to other programs. <br /> <br />3-10 <br />