Deletion of one Vertices of a polygon deleting whole polygon

[Hutchinson, Pamela]

Hi

 

I use the backspace to delete unwanted vertices in a polygon.

Sometimes the whole polygon deletes. 

 

Any suggestions as to why this is happening.

 

It is not the last vertice or it does not make the polygon into a line.

 

Thanks Pam

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[Richard Greenwood]

Are you on MI 11.0? I've been running into this also but I have not
taken the time to create a reproducible test case that I can submit to
MI tech support.

Rich

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[Hutchinson, Pamela]

Yes I am in MI 11 this did happen in 10 as well.

[Wyatt, Phil (Parks)]

Anyone proficient in the use of the line style editor? I am trying to create a line with an arrow on the end but the arrow won't stick to the end of the lines

This is what I am after

------|\
------|/

But I get this (lines travelling through the end arrow)

----|\-
----|/-

This type of line/arrow is easy -----> but not the double lines


Any clues or sample pen files appreciated - I suspect it's something easy but its alluding me at the moment.

Cheers - Phil

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[Richard Greenwood]

Pamela,

Well it's a pretty serious problem and obviously it's not just me.
Lets see if we can put together as small an example as possible to
submit with a bug report. My experience is that when I begin node
editing a polygon I can delete the first vertex without a problem, but
the next vertex that I try to delete will delete the entire polygon.
Is that similar to your experience?

Rich

On Mon, Nov 28, 2011 at 8:13 PM, Hutchinson, Pamela

[Hutchinson, Pamela]

Rich,

Yes that has happened, it is not always the second and I have found that if I close everything and open again it will fix the problem sometimes.

What do I need to do for a sample example so next time it happens I can send it? And who do I send it to?

Pam

[Driver, Greg 9434]

Phil,

I've attached a .PEN file with a couple of new line styles that I'd created in the past, one of which is a line with an arrowhead. Don't ask me how I did it, as it was a long time ago and I never did quite understand the MI line style tool.....

HTH

Greg Driver

NOT PROTECTIVELY MARKED

------|\
------|/

----|\-
----|/-

Cheers - Phil

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[Richard Greenwood]

We need an example that consistently shows the problem every time and
a clear set of steps to reproduce the problem. Then send it to a
MapInfo tech support address appropriate for your area. See list here:
http://www.pbinsight.com/support/contact-support/

I have been meaning to create an example and file a bug report myself
but never got to it.

Rich

On Mon, Nov 28, 2011 at 11:29 PM, Hutchinson, Pamela

[ssim...@baltometro.org]

There are a number of actions (such as clicking anywhere in the map) that
can kick MapInfo out of Reshape mode. This is the usual cause of whole
objects being affected when you only want to affect one vertex.

Are you sure that MapInfo is in Reshape mode, and that a single vertex is
selected, when you hit BACKSPACE and the whole object goes away? Does the
same behavior occur using the DEL key instead of BACKSPACE?

If you're editing on a notebook (or you have a keyboard with a touchpad),
coming too close to the touchpad while you're typing can be interpreted as a
click, setting you up for disaster.

Spencer

[Ross Nixon]

We have the same problem in version 11.latest (XP SP3).
The polygon can disappear when we delete one node of a completed
polygon.
Have been too busy recently to send in a test case yet.

It has stopped me installing our other license though.

Ross

[Wyatt, Phil (Parks)]

Thanks Greg,

I have managed to get arrows with single trailing lines but not double trailing lines. I will keep plugging away but its not looking good at this stage.

Cheers - Phil

-----Original Message-----
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com] On Behalf Of Driver, Greg 9434
Sent: Tuesday, 29 November 2011 9:10 PM
To: 'mapi...@googlegroups.com'
Subject: [MI-L] RE: Line Style Editor

Phil,

I've attached a .PEN file with a couple of new line styles that I'd created in the past, one of which is a line with an arrowhead. Don't ask me how I did it, as it was a long time ago and I never did quite understand the MI line style tool.....

HTH

Greg Driver

NOT PROTECTIVELY MARKED

[Richard Greenwood]

Spencer,

I'm with you - there are various actions that bump you out of reshape
mode and would cause an object deletion rather than a node deletion,
but I am confident that this is a bug. I have been using MapInfo since
3.0, somewhere around 15 years, and I work primarily with polygon
geometries so I'm pretty well practiced with node editing. I first
noticed the bug in 11.0. I have not been able to create a simple
example case that consistently reproduces the problem. My role in my
company is such that I really don't spend a whole lot of time using
MapInfo anymore, and when I do run into the problem I am usually in
such a hurry that I don't take time to isolate it into a reproducible
example.

Thanks,
Rich

[Derek Tan]

Pam

Was Googling and this topic came up. I know it's been 5 years but do you know if this was resolved with more recent versions of MapInfo. We are still on Version 11.5 and this same behavior you mentioned is happening with this older version. The problem is I don't think we are upgrading anytime soon. But it would be good to know that it was resolved in new versions.

Thanks

Derek