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You appear to have two float variables named Lon and Lat as well as selecting the same names as columns in your SQL select. Change your variable names and that should resolve the problem.


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A good way to do this analysis would be create a TIN from your points then calculate the contours. You can do this in GIS software or even by hand.


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Table POINTS (with column REGION_NAME), Table REGIONS (with column NAME) Add Column "POINTS" (REGION_NAME) From REGIONS Set To NAME Where contains You should replace names for your actual tables and columns.


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Actually I realize that the programme was causing me problems because I needed to define the svalue variable as a fixed length variable string. Dim sValue As String *5 (for example a length 5 string) Otherwise the selection process in the Table would not grant me a value all the time roughly only 1 out of 10 times.


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Add this to your code instead your 'Select' line Dim sqlcom as string sqlcom = "Select Lon, Lat from TableA where sIDENT = """ + sValue + """ into Query" run command sqlcom


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A TAB file can contain multiple object types at one time, both points, lines, polygons etc. But starting from byte 316 in the map file you can read number of points, number of lines, number of polygons and finally number of text objects. That was 4 int32 integers. But I am not sure if that information is still uptodate, considering more object types has been ...


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I would make sure that there are no duplicate polylines lying underneath the 6 polylines that you can see and that you haven't accidentally inserted any other objects into the table. A good way to do this is to do a boundary select on one of the buffers that is returning the wrong count and browse the results. Then select each record in turn in the browser ...


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In MapInfo Professional you can easily setup a label expression in stead of a fixed column. Pick the text Expression from the "Label with" dropdown list. In the Expression dialog enter your expressions, in this case: ACRES * 2.5 Hit OK to the Expression dialog and now you have specified a label expression. If you have turned on Autolabel for the layer ...


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John I would consider them part of the same statement: Alter ButtonPad. This statement can be used to modify an existing ButtoPad or toolbar from within a MapBasic application. You can also create your own menu or buttonpad using these statements: Create Menu Create ButtonPad All the MapBasic documentation can be found on the Pitney Bowes web site. ...


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MapInfo MapXtreme Java has been "replaced" by our new server offering; Spectrum Spatial Here is a link to a document describing the path forward from MapXtreme Java and Envinsa to Spectrum Spatial. Spectrum spatial is a bundling of a number of modules in the Pitney Bowes Spectrum Technology Platform, for example the Location Intelligence Module and the ...



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