User's guide of Proceessing Modflow 5.0

186 Processing Modflow
of the cross sections. In this case, the Visible check box will be unchecked automatically.
- Projection Row and Projection Column: PMPATH uses a grid cursor to define the
column and row for which the cross-sectional plots should be made. You can move the
grid cursor by holding down the Ctrl-key and click the left mouse button on the desired
position. Alternatively, you can type the row and column in the Projection Row and
Projection Column edit boxes. The visible part on the cross-sectional plots is defined
by Minimum Elevation and Maximum Elevation. By default, the maximum elevation
is set to the highest elevation of the model grid (or the largest hydraulic head). The
minimum elevation is set to the lowest elevation of the model grid (or the smallest
hydraulic head).
< Velocity vectors
Velocity vectors describe the directions of water movement at any instant of a given time
step of the simulation (The time step is defined by Current Time of the Particle Tracking
(Time) Properties dialog box; see Fig. 4.11). Check the Visible check box, the projection
of velocity vectors of each active model cell will be displayed on the Worksheet and
cross-section windows. Click the color button next to the Visible check box to change the
appearance color of the velocity vectors. The appearance size of the largest velocity vector
is defined by the Vector size (in pixels), which defaults to 25 and can be ranged from 1 to
32767.
4.3 PMPATH Options Menu
Fig. 4.7 The Environment Options dialog box