Documentation

Plot Interactions

How to zoom, pan, and select regions in ReliaSim's plot windows—including tips for touchpad users.

After running a simulation, you'll interact with plot windows to explore results such as Levels, Flow Rates, and Production charts. These plots support zooming, panning, and region selection through mouse gestures. This page covers how to work with the charts, including the context menus available on each axis and the chart area.

Panning

Hold the left mouse button and drag to pan around the plot. This moves the visible area without changing the zoom level.

Rectangle Drag (Zoom to Region)

Right-click and drag to draw a rectangle over the area you want to inspect. When you release, the plot zooms to that region.

A yellow rectangle selection drawn over a region of a Level plot, ready to zoom in

The yellow highlight shows the selected region. On release, the plot zooms to show only that area. Use the Auto-Fit option in the axis context menus (below) to reset the zoom back to the full data range.

Axis and Chart Context Menus

Right-clicking on different parts of a plot window opens context menus with options for scaling, display, and formatting.

X-Axis Context Menu

Right-click on the X-axis (typically the Time axis) to open its context menu:

X-axis context menu showing Time axis options
Option Description
Min Time / Max Time Set the visible time range manually
Auto-Fit Automatically scale the axis to fit the data
Invert Reverse the axis direction
Opposite Move the axis to the opposite side of the plot
Label Toggle the axis title (e.g., "Time")
Grid Lines Toggle vertical grid lines
Tick Marks Toggle tick marks along the axis
Tick Labels Toggle the numeric labels at each tick

Y-Axis Context Menu

Right-click on the Y-axis (e.g., Level, Flow Rate) to open its context menu:

Y-axis context menu showing Level axis options

The Y-axis menu has the same options as the X-axis but applies to the vertical scale. Use Min / Max to set a fixed value range, or Auto-Fit to let the axis scale to your data. Invert is useful when you want higher values at the bottom (e.g., for depth-style plots).

Chart Area Context Menu

Right-click inside the plot area (not on an axis) to open the chart-level context menu:

Chart area context menu showing Time, Level, Legend, and Settings submenus
Submenu Description
Time Opens the same options as the X-axis context menu
Level [Units] Opens the same options as the Y-axis context menu
Legend Control legend visibility and positioning
Settings General plot display settings

This menu provides a single access point for all axis and plot settings without needing to right-click precisely on a specific axis.

Touchpad Guide: Rectangle Drag Operations

On a laptop with only a touchpad, rectangle-drag operations can be tricky—especially right-click + drag. Here are several reliable methods.

Left-Click + Drag

Tap-Tap-Drag
  1. Tap the touchpad once.
  2. Tap again immediately, but keep your finger down on the second tap.
  3. Drag your finger to define the rectangle.
  4. Lift your finger to release.

This is the most natural method and works on nearly all Windows Precision Touchpads.

Physical Click + Drag
  1. Press the touchpad surface down (physical click) in the lower-left area or center.
  2. While holding the click, slide your finger to drag.
  3. Release to finish.

This works reliably but can feel awkward since you are pressing and sliding simultaneously.

Click-Lock (Windows Setting)

If you find it hard to hold and drag, enable click-lock:

  1. Open Settings → Bluetooth & devices → Touchpad → Taps.
  2. Enable "Tap twice and drag to multi-select" (wording may vary by driver).

With this enabled, a double-tap locks the click state so you can drag without holding pressure, and a single tap releases it.

Right-Click + Drag

This is the more challenging gesture on a touchpad, since right-click and drag are not naturally combined in standard touchpad gestures.

Bottom-Right Corner Press + Second Finger Drag

Most Windows Precision Touchpads treat the bottom-right corner as a right-click zone.

  1. Press and hold the bottom-right corner of the touchpad with one finger (e.g., your thumb).
  2. With a second finger, drag across the touchpad to define the rectangle.
  3. Release both fingers to finish.

This works on most modern Windows laptops (Dell, Lenovo, HP, ASUS, Surface) that use Windows Precision Touchpad drivers. You can verify you have a Precision Touchpad by checking Settings → Bluetooth & devices → Touchpad—if you see Microsoft-style gesture options, you have one.

Two-Finger Tap-Hold + Drag

On some touchpad drivers, you can initiate a right-click by tapping with two fingers and then transition into a drag:

  1. Tap with two fingers on the touchpad.
  2. Immediately lift one finger while keeping the other held down.
  3. Drag the remaining finger to define the rectangle.
  4. Lift to release.

This method is inconsistent across drivers and hardware. It works well on some Dell and Lenovo models but may not register correctly on others.

Keyboard Modifier with AutoHotkey

If the touchpad methods feel unreliable, you can use a small AutoHotkey script to turn a keyboard key into a right-mouse-button modifier:

  1. Install AutoHotkey (v2 recommended).
  2. Create a script file (e.g., right-drag.ahk) with the following content:
; AutoHotkey v2
; Hold F12 to convert touchpad drag into a right-click drag.
; Press F12 before starting the drag, release after finishing.

F12:: {
    Send "{RButton down}"
    KeyWait "F12"
    Send "{RButton up}"
}
  1. Run the script.
  2. To rectangle-drag in a ReliaSim plot: hold F12, drag on the touchpad, then release F12.

You can substitute any key you prefer (e.g., CapsLock, ScrollLock, or a function key you don't use).

External Mouse

If rectangle-drag operations are a frequent part of your workflow, a small USB or Bluetooth travel mouse is the most practical solution.

Touchpad Troubleshooting

Problem Solution
Bottom-right corner doesn't right-click Check Settings → Bluetooth & devices → Touchpad → Taps and ensure the right-click zone is enabled
Two-finger tap doesn't register as right-click Verify that "Tap with two fingers to right-click" is enabled in touchpad settings
Drag gestures aren't smooth Increase touchpad sensitivity in Settings → Bluetooth & devices → Touchpad and update your touchpad drivers
None of the built-in methods work Use the AutoHotkey approach described above

Summary

Operation Recommended Method Reliability
Left-click + drag Tap-tap-drag High — works on all touchpads
Right-click + drag Bottom-right corner + second finger Medium — depends on touchpad size
Right-click + drag AutoHotkey keyboard modifier High — works on all touchpads
Right-click + drag External mouse High — eliminates the problem entirely