Hi Map-L'ers, Just embarking on my first adventure with MapBasic - trying to incorporate some commands into my workspace so it will execute a buffer operation on a selection (created earlier with MapBasic in the .wor).
We are doing this to allow automated map creation for one of our offices to act autonomously for routine map requirements without the need for a spatially enabled person conducting manual mapping operations...ie: running the concentric ring buffer.mbx each day. Anyway, having started the process and saved the resultant .wor incorporating the relevant commands, I have tried to open the .wor, but get an error message as follows: (g:\dept\dengue\test cairns case and response maplocalhdd.wor:309) Expression does not evaluate to a column or table name. NB: the file name referred to above is the workspace file I have created... My 3 questions are these: Could the number 309 refer to the line of code that contains the error (it doesn't seem likely to me...)? If not, how do I locate the error in the workpace code? Does the MB code need to include all of the filename or just the bit as it appears in LayerControl (ie: when there are too many characters for the layer conbtrol to show full file name, abbreviates name for display but also seems to abbreviate when recording operation in MapBasic window... I seem to have correctly coded in the opening of a pre-existing blank table (for the buffer objects to be stored in) and the selection of the case premises.obj (and relevant attributes), saving them to a table, opening this table and selecting all records from this table with the following code: Open Table "C:\GIS stuff\BufferTables\Cairns\TestAutoBlankBufferTable.TAB" Interactive Map From TestAutoBlankBufferTable Select CCC_Property_Details.obj, ACQ_DateOfLastConfirmed_Primary.Lot_plan, ACQ_DateOfLastConfirmed_Primary.ConfPriDaysOnset, ACQ_DateOfLastConfirmed_Primary.OnsetDateConfPri from CCC_Property_Details, ACQ_DateOfLastConfirmed_Primary where CCC_Property_Details.Lot_Plan = ACQ_DateOfLastConfirmed_Primary.Lot_plan into Selection Browse * From Selection Commit Table Query1 As "C:\GIS stuff\BufferTables\Cairns\TrialAutoCasesToBufferForBufferTable1.TAB" TYPE NATIVE Charset "WindowsLatin1" Open Table "C:\GIS stuff\BufferTables\Cairns\TrialAutoCasesToBufferForBufferTable1.TAB" Interactive Add Map Auto Layer TrialAutoCasesToBufferForBuffe set map redraw off Set Map Layer 2 Display Global Global Pen (12,2,16711680) Global Brush (1,16777215,16777215) Global Symbol (32,12582912,24,"MapInfo Miscellaneous",0,0) set map redraw on Select * from TrialAutoCasesToBufferForBuffe into Selection Browse * From Selection The (possibly erroneous) piece of code that immeadiately follows the above section is: Create Object As Buffer >From TrialAutoCasesToBufferForBuffe Into Table TestAutoBlankBufferTable.TAB Width 100 Units "meters" Resolution 30 Looking forward to any ideas/feedback/experience people may have - will SUM for MapInfo-L, Cheers, Alistair *************************************************** Alistair Hart Vector Control Officer Dengue Action Response Team Tropical Public Health Unit Network PO Box 1103 Cairns QLD 4870 Ph: 0740 503 628 Fax: 0740 311 440 E: [EMAIL PROTECTED] "Failure is not an option; it comes bundled with the software." *********************************************************************************** This email, including any attachments sent with it, is confidential and for the sole use of the intended recipient(s). This confidentiality is not waived or lost, if you receive it and you are not the intended recipient(s), or if it is transmitted/received in error. Any unauthorised use, alteration, disclosure, distribution or review of this email is prohibited. It may be subject to a statutory duty of confidentiality if it relates to health service matters. If you are not the intended recipient(s), or if you have received this email in error, you are asked to immediately notify the sender by telephone or by return email. You should also delete this email and destroy any hard copies produced. ***********************************************************************************
