How to navigate the waveform viewer?

QSPICE
1

Hi All,

I know that we can zoom in on the waveform viewer by dragging a rectangle while pressing the left mouse.

But I dont think if I can pan, zoom in/out… is these feature not yet implemented?

Thanks,
Arief,

2

@physicboy ,
On the plot, make sure the “+” mouse cursur is on the plot and the plot window is the active window.
Press the “Alt” key ONLY and move the mouse.
Viola … Panning.

3

Ah… I skipped that combo, thanks

Any clue for zoom in/out?

Arief

4

What works for me in the plot window is:
On the plot, make sure the “+” mouse cursur is on the plot and the plot window is the active window.
Press the “Alt” key ONLY and then use the scroll wheel on most modern mouses to Zoom in (wheel up) or Zoom out (wheel down).

Len

5

Hi @lpoma

1st… oh your name is LPOMA not IPOMA…haha

yes the “alt” works, however its very dizzying where my screen blanking black repeatedly when I press “alt” and I cant really see how I move my waveform until I release the “alt”.

To be clear my PC dont have dedicated GPU, however it never been an issue with other simulator…

@Engelhardt , any suggestion?

Thanks,
Arief,

6

Could this be broken in newer releases of Qspice? When I hold the Alt down, and move the mouse, the whold plot window moves; ie, it is not panning. If I hold alt and scroll the mousewheel, the plot window zooms in and out.
I’m using Windows 11, and the current version of Qspice,

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7

@jrive,

When I use ALT and move the mouse, the whole window moves as you said.

This is because the plot window initially displays the entire available sim timing from SIM_TIME_START to SIM_TIME_STOP.

If I zoom in to a smaller time section of the plot, then I ALT mouse move left then unpress the ALT, the timing pans correctly. If I ALT mouse move right then unpress the ALT, the timing pans correctly.

Is this what you are looking to do?

What I did notice is that every time I panned (left or right) without pressing a mouse button or mousewheel, it always pans (intended) but also zooms in (undesired).

Len

1 Like
8

Maybe we just need a simple feature: the Y-axis remains unchanged when X-axis is moved.
The shortcut key can be scrolling the mouse wheel with SHIFT or ALT pressed.

– Peter

9

ALT panning seems to be multiple direction panning.

Someone has to make a request to Mike for x-axis only panning, but I am not a fan of panning plots. It would be better if someone truly in need makes the request.

How about using Ctrl-W to open an empty window in the waveform viewer and then pan that window? It appears that only window in panning may change its y-axis, while other windows seem to remain untouched in their y-axis scaling.