RE: MI SUM: VB: finding layout scale

[Jacques Paris]

Andy,

 

I am sorry that I came a little late on this one. You can treat any layout object a regular objects and get all the info you want with objectinfo for example

 

firstly, there was no way of querying the layout for details on particular fram objects, namely my map window. But i could use MapperInfo to retrieve some scale value from the map window. The trick is to make the map window and the map frame in the  

 

Here is a snippet of mb code I use to get the "exact" scale in a layout. The layout must be frontwindow and a frame with a map selected.

 

framewid=objectgeography(selection.obj,obj_geo_maxx) - objectgeography(selection.obj,obj_geo_minx)

mapzoo=mapperinfo(objectinfo(selection.obj,obj_info_framewin), mapper_info_zoom)

scale=mapzoo/framewid 

You have of course to set up layout units and distance units before, so that scale means something.

I hope that this a at least partial answer to your query.

 

Jacques Paris
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