Pan but not zoom in active layout

Richard Sands

Flowing from an earlier post I would like to be able to Pan but not Zoom within an active Viewport.
I have a lot of trouble where I want to adjust the view within the Viewport by panning, and the mouse wheel (that is held down) causes the layout to zoom to some unwanted scale when I let go.
Is there a way to just Pan but not zoom whilst adjusting the scope of the Viewport?
It drives me crazy.  I'm using a Logitech MX1100 mouse which suits my needs.
I have the side wheel motion set to middle button.
I tried setting them to 'Unassigned' but that makes it difficult to Pan anywhere.
Help appreciated thanks.

Richard Sands

Meant to mention I have used Saved Views to good use, but there are times I don't want to or can't use that. Not unless I set them up and for one offs is a extra routine for little reward.

Anthony Apostolaros

The PAN command lets you pan as much as you want with the left mouse button held down, not touching the wheel, until you end it by hitting Enter.

Jason Bourhill

Assuming CTRLMOUSE = 1, then the following mouse shortcuts are available:

• Ctrl + Shift + Left button = Realtime Zoom
• Ctrl + Shift + Right button = Realtime Pan
• Ctrl + Left button = View rotation
• Ctrl + right button = View rotation with fixed Z-axis.
  

So perhaps use Ctrl + Shift + Right button instead of holding the wheel button down.

Regards,

Jason Bourhill

CAD Concepts

Richard Sands

Since posting I found the RTPAN command.  That is useful.
Anthony I never liked the PAN feature as it seemed to cumbersome to move about large parts of the screen quickly - on 28" screen especially.
Too impatient perhaps!?

Ctrl + Shift + Right button
thanks Jason
I can live with that.  I'd tended not to use those as often halfway through something I'd find the view rotated and that just annoyed me so put it out of my mind.

I have another program that a Spacebar and left mouse combo does same which is a bit easier in my opinion.

Joe Dunfee

Yet another approach, that even works with locked viewports, is to stretch the viewport frame.

-Joe

Anthony Apostolaros

Good point, Joe. And Bricscad's viewport stretching is better than that of the less user-friendly brand. Or at least it was the last time I had current versions of both. Maybe they've improved it since then to try to catch up.

I always draw a Defpoints rectangle around anything in modelspace that I want to put in a viewport. Then:
- create the viewport
- roughly center it on that rectangle
- set the scale
- lock the viewport
- drag the corners or midpoints of the viewport to fit the rectangle in modelspace.

Richard Sands

I use a very similar approach as Anthony'.
Whilst drawing 'to scale', my plans are sketch plans of survey notes and as such I try to place as much information in each sheet as is legible when printed to A4. (they are A3 sheets).
I use a constant 1:1000 scale so all blocks, texts etc across all jobs are the same no matter where they come from.
I look at each job in model space and mentally break into sheet sizes then decide how many sheets will span the extent of my survey but with much licence to exaggerate, scale, rotate and pull about.
I draw a rectangle that will fit my 1:1000 viewport for each sheet.
Then I make my work fit those rectangles.
Whilst not working 'to scale' I do for the reasons above - any data from previous jobs will print as A3 to 1:1000.

Its then I find I want to fiddle with the location of things and what I want on a particular sheet and so occasionally pan the data inside the viewport.
Often I just draw a new rectangle of the extents of the viewport and move my 'model' data to suit.
I come from many many years of hand drawn notes and plans (all plans in reality, just the 'plans' show things as they truly are and the notes are sketches) and Cad is not my native way of doing things.
I tried doing my plans in Canvas GIS and whilst that had a lot more freedom in some areas and easier to do certain things I kept finding CAD ruled for my type of work.  Annotating bearing and distance of lines etc.

So many thanks and a BIG plus for all that put time and effort into helping what to most of you are probably bread and butter things you can do blindfolded.
(and I should know but don't - but I'm learning!)

Jason Bourhill

Hi Richard,

This isn't related to Pan & Zoom, more towards how you setup your paperspace viewports. With V14 you can now make use of Annotative scaling, which provides you with a visual method of laying out a multi-sheet drawing.

If you look at the attached drawing you'll see that I've used a block in model space to represent my title block and viewport. This block is annotative, with a number of _OBJECTSCALE attached. If you change the CANNOSCALE via the Status Bar the block will scale accordingly. This provides you with a visual guide on how many sheets you will require for a particular scale. Once you have determined your scale you switch to the paperspace layout, and in your viewport simply _ZOOM _Window snapping to the markers on the block. Provided your viewport is the same size (at 1:1), then you should find your view is set to the correct scale and position.

Hopefully this make sense, and is of some help.

Regards,

Jason Bourhill

CAD Concepts

AnnotativeTitleFrame.dwg

Richard Sands

Thanks Jason
Yes, makes a lot of sense and I'll definitely explore this way.
Yes all my Viewports are same size, orientation and scale for my Survey Note sheets. It's only my Plan Sheets that are a flexible.
Very much appreciated.

When I went Ver 14 I found some 'odd' things happen with my line scales and other related scale issues.
I was too busy to try and sort out so just adapted and kept going.
Probably related to some setting I wasn't aware of and Annotative scaling?
Having a couple of weeks off, so better do some homework and make life less arduous, on me and the Forum members!

regards
Richard