You are raising two issues: 1 - the limitations of both labeller and autolabel at creating labels for the objects in the windows (and not for the entire layer) 2 - the impact of changing the size of text objects.
To the first question, I have no solution; even if you make a selection of the entire layer when it is not showing entirely in the window, only the visible objects will be selected. Both programs rely on the "autolabel" feature, one with a call to AutoLabel command, the other to the "auto" keyword in the "Set map ... layer ...auto on" and MB reference states clearly that the creation of labels is limited to the visible part of the map The second issue is the change of scale of text objects. What you say about "labels moving around when changing the font size" is inherent to the definition of text objects: they have only one fixed parameter, their anchor point (upper left corner of the text rectangle). The height of the text rectangle determines the point size of the text. Changing text size will change their apparent location relative to their reference object. It is part of the wall I hit when trying to write a Rescale mbx: finding what should be the anchor point of a rescaled object that would position the rescaled text relative to the original (centered, upper-left corner, .. as with labels relative to reference points). Any solution on this general issue will be welcome. One work around the labelling-only-viewable-objects is to view the entire layer, set the label parameters in the layer control then, create the labels, then re-center/zoom the map. The question is to find the right parameters to use for getting the right results at the desired-view zoom. The ratio between full-layer zoom and desired-view zoom should be the inverse of the ratio of label-font-size for automatic labelling to text-size at desired-view zoom. Ex: if desired-view zoom is 100 d.u. and text-size 10 pts, if the view-entire zoom id 500 d.u., the point size for labels in the layer control should be set at 2. One must also take into account the offset value; it is expressed in pixels then converted into real distance when label objects are created; pixel is a constant on the screen but not when converted in real measurements. One should thus apply the same ratio as for the font size to the offset value. In the above conditions, if the desired offset is 20 pixels, it should be set at 4 in the label parameters of the layer control. Having "framed" the problem and a possible solution, I would like to know if anything can be added/improved, and if it would be of interest to add that kind of functionality to these applications, to both or to which one in priority? Jacques Paris e-mail [EMAIL PROTECTED] MapBasic-MapInfo support http://www.paris-pc-gis.com -----Original Message----- From: Matt Bolton [mailto:[EMAIL PROTECTED] Sent: 29-Jun-03 05:21 To: [EMAIL PROTECTED] Subject: MI-L Labeller.mbx Problem Hi all, I'm having trouble creating a layer of labels using labeller.mbx and autolbl.mbx. I've read the other posts here on the topic, but none of the suggestions seem to work. I started with labeller.mbx and it works fine except it only exports the labels visible at the zoom it's run at. Zooming out and running, then zooming in and changing text size produces labels the right size, but they've moved all over the place. Following a suggestion here I used autolbl.mbx instead, but with virtually the same results (once shrunk, the labels were in the wrong place). The only difference was that these labels had label lines showing what the label referred to. This solution would be OK if there was a way to automatically move all labels to their centroids. (Any suggestions?) Is there a step I'm missing in either of these procedures. Obviously the simple way would be to have the labeller produce labels for the entire label from the zoomed in position (as the manual seems to indicate it does). TIA, Matt -- Matt Bolton Mach 3 IT Email [EMAIL PROTECTED] --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 7421 --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 7422
