Stephen, I only received two replies ... yours and Peter's.
My snap tolerance was set to 5 and the node tolerance set to 10. I have tried experimenting around without a satisfactory solution. A node tolerance of 10 seems to be ideal; any less and you get too many nodes and any more you start to "cut corners". Peter's suggestion of processing afterwards with the "Thin" function gives some good results, but again at sharp corners, results are not ideal. I suppose what is really required, and MapInfo may like to consider it, is some sort of Autonode entry algorithm that minimises hand movement errors. The algorithm would probably consider the map window projection, the scale being digitised, the pen / mouse drawing speed and calculate an expected pen / mouse buffer radius that the next point is accepted within??? The other option of course is just practise, practise, practise! Regards, Bill ============================================================================ ===================================== ----- Original Message ----- From: "Stephen Chan" <[EMAIL PROTECTED]> To: "Peter Horsbøll Møller" <[EMAIL PROTECTED]> Cc: "Data Directions" <[EMAIL PROTECTED]>; "Mapinfo-L" <[email protected]> Sent: Tuesday, November 01, 2005 12:30 PM Subject: Re: MI-L Autonode irritation Hmmm, no summary posted? Here was my answer I emailed to Bill MapInfo v8.0 also supports orthogonal polylines and polygons. Holding the CTRL key down while drawing a polyline / polygon allows you to draw a line angled at 45deg increments from the previous slope. As long as you have drawn two nodes to indicate the direction in which you would like to continue drawing a straight line you can use this feature to assist you in continuing the straight line. You may also want to consider the autonode tolerance found in Options > Preferences > Map Window. Please note that snap/autotrace feature must not be activated as the Shift and Ctrl keys have different functions when they snap/ tracing is used (as you probably already knew) - Steve On 10/27/05, Peter Horsbøll Møller <[EMAIL PROTECTED]> wrote: > > Bill, > > Nice idea with the scotch. I'll have to try that some day ;-) > > A couple of ideas: > 1. Change the Autonode Pixel Tolerance. If this has been set to 1 pixel, > you'll get a lot of nodes. Try changing it to 5 og 10. I guess this > tolerance also depends on the zoom you are working in. > > 2. Proces the autonode line afterwards with the Clean/Thin function to > remove not necessary point > > Peter Horsbøll Møller > GIS Developer, MTM > Geographical Information & IT > > COWI A/S > Odensevej 95 > DK-5260 Odense S. > Denmark > > Tel +45 6311 4900 > Direct +45 6311 4908 > Mob +45 5156 1045 > Fax +45 6311 4949 > E-mail [EMAIL PROTECTED] > http://www.cowi.dk/gis > > COWI har fået ny hjemmeside. Ydelserne GIS og IT, kort, kortlægning, 3D > visualisering og arealforvaltning ligger under SAMFUND. Se mere her : > www.cowi.dk <http://www.cowi.dk> > > COWI has changed its homepage. Our services within cadastre and > landadministration, geodataproducts, mapping and GIS can be seen under > SOCIETY. See our services here: www.cowi.com <http://www.cowi.com> > > > -----Original Message----- > From: Data Directions [mailto:[EMAIL PROTECTED] > Sent: Wednesday, October 26, 2005 4:59 PM > To: Mapinfo-L > Subject: MI-L Autonode irritation > > > Does anyone have any hints for using the new AutoNode feature in version > 8.0? > > I can see that it could be extremely useful, but it is extremely hard to > maintain a constant line, as my hand seems to naturally jiggle while > digitising. > > Any hints would be greatly appreciated. Note that I have tried using both > a mouse and more recently a pen tablet. > > Regards, > > Bill > > PS. Having a couple glasses of scotch didn't seem to help either! But it > did taste good! > > > > > --------------------------------------------------------------------- > List hosting provided by Directions Magazine | www.directionsmag.com<http://www.directionsmag.com>| To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > Message number: 18466 > > > > > --------------------------------------------------------------------- > List hosting provided by Directions Magazine | www.directionsmag.com<http://www.directionsmag.com>| > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > Message number: 18481 > > --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 18544
