Draw Hydrograph

Function

This command draws a hydrograph from a hydrograph file (*.h1) that is created by SEDCAD, the Hydrograph Development, or the Single Runoff Hydrograph command. Multiple hydrographs can be drawn on the same grid by first running Draw Hydrograph with the Draw Grid option on. Then run Draw Hydrograph for each additional hydrograph with the Draw Grid option off and pick the same starting time and same lower left grid corner.

Draw Hydrograph

Prompts

Range of Times: <0.0 - 49.998>
Starting time <0.0>:
press Enter When plotting more than one hydrograph on the same graph as above, it is best to reference all starting times to 0. Some starting times will begin at 6 hours or other value, but if they share a zero reference, they can be overlaid correctly by picking the same lower left corner of the horizontal and vertical axes.
Ending time <49.998>: press Enter
Draw Hydrograph settings dialog box. Because the vertical axis is typically very closely spaced in the hydrograph output files, it is recommended to set the vertical axis grid interval at 5 times the vertical scale, as shown in the dialog. For many cases, horizontal scaling of 1 and vertical scaling of 1,5,1 in that order, work well for plotting.
Pick starting point for axis <0.0 , 0.0>: pick a point

Pulldown Menu Location: Watershed
Keyboard Command: hydrogrf
Prerequisite: A hydrograph file
File Names: \lsp\hydrogrf.lsp, \lsp\makegrid.lsp, \lsp\hydro.dcl