May thanks to all who helped. Below is the original question and the responses from 5 very nice folks. Original Message: > Is there a way to extract to Lat/Long's of the starting and ending points > of a line object? Does anyone know where I can get that mapbasic code, > as I don't think that can be done in MI alone. Thanks ... Mike Responses: (1) Here is some sample Mapbasic code. You can open a Mapbasic window in Mapinfo and enter this (obviously change your layer names to match). Open Table ".\WI\WIAdam\WIAdams1.tab" Interactive Alter Table "WIAdams1" ( add FROM_LAT Decimal(9,6),FROM_LONG Decimal(11,6),TO_LAT Decimal(9,6),TO_LONG Decimal(11,6)) Interactive update WIAdams1 set FROM_LONG = objectgeography(WIAdams1.obj ,1) update WIAdams1 set FROM_LAT = objectgeography(WIAdams1.obj ,2) update WIAdams1 set TO_LONG = objectgeography(WIAdams1.obj ,3) update WIAdams1 set TO_LAT = objectgeography(WIAdams1.obj ,4) Commit Table WIAdams1 Close Table WIAdams1 Hope this helps. Michael Davern Customer Support Representative Geographic Data Technology 11 Lafayette Street Lebanon, NH 03766 (800) 331-7881 [EMAIL PROTECTED] http://www.geographic.com 43.6° N 72.1° W (2) If you export to a mid\mif you will see all of the starting and ending points of all the line objects. If you are to see this data displayed in a different way, you could write some code to identify the records you want and then use some code like: Include "mapbasic.def" Dim a as integer Dim oLine as object Dim fXbeg,fXend,fYbeg,fYend as float 'query something into MySelection for a = 1 to tableinfo(MySelection,tab_info_nrows) fetch rec a from MySelection oLine = MySelection.obj fXBeg = ObjectGeography(oLine, OBJ_GEO_LINEBEGX) fXend = ObjectGeography(oLine, OBJ_GEO_LINEENDX) fYbeg = ObjectGeography(oLine, OBJ_GEO_LINEBEGY) fYend = ObjectGeography(oLine, OBJ_GEO_LINEENDY) 'Now you can do what you wish with these values. Print them, insert them into a table etc. next close table MySelection ----------------------------------- If you need more help, let me know or the list know and we will try to help you. Good luck, Carol Sheehan (3) Sub CalcLonLat( fltFrom_Lat As Float, fltTo_Lat As Float, fltFrom_Lon As Float, fltTo_Lon As Float, ByVal objData As Object ) Dim lngPointCount As Integer Dim intSectionCount As SmallInt Dim intObjectType As SmallInt intObjectType = ObjectInfo(objData, OBJ_INFO_TYPE) If (intObjectType = OBJ_TYPE_LINE Or intObjectType = OBJ_TYPE_PLINE) Then ' Calc values using Node test intSectionCount = ObjectInfo(objData, OBJ_INFO_NPOLYGONS) lngPointCount = ObjectInfo(objData, OBJ_INFO_NPNTS) If (intSectionCount >= 1 And lngPointCount > 0) Then fltFrom_Lat = ObjectNodeY(objData, 1, 1) fltFrom_Lon = ObjectNodeX(objData, 1, 1) lngPointCount = ObjectInfo(objData, OBJ_INFO_NPOLYGONS+intSectionCount) fltTo_Lat = ObjectNodeY(objData, intSectionCount, lngPointCount) fltTo_Lon = ObjectNodeX(objData, intSectionCount, lngPointCount) If (fltFrom_Lat <> 0 And fltTo_Lat <> 0 And fltFrom_Lon <> 0 And fltTo_Lon <> 0) Then Goto CalcLonLat_Exit End If End If End If End Sub Pass in each object that you want the start and end lon/lat for. Put this in a MapBasic script and it will work. - Sesheeka (4) You can update four columns with the coordinates of the end points of a line with these 4 values; objectinfo(obj,1) objectinfo(obj,2) objectinfo(obj,3) objectinfo(obj,4) 1 represents the beginning X coordinate of the line. 2 represents the beginning Y coordinate of the line. 3 represents the ending X coordinate of the line. 4 represents the ending Y coordinate of the line. Hope that works for you. Richard Duncan (5) You'll probably get a bunch of replies to this, but here goes. Make four new columns in your line table for StartX,StartY and EndX, EndY. Then Update Column StartX in yourlinetable with Value: ObjectGeography(obj,1) That updates the startX column with the first X node of the line. Continue on using (obj,2) for StartY, 3 = EndX 4 = EndY The MapBasic term for code 1 is OBJ_GEO_LINEBEGX, (and similarly 2 = ..._LINEBEGY) but you have to use the numeric equivalent from inside MI. If you open the MapBasic window in Mapnfo when you do this, you could copy/paste the line and change column and ObjectGeography code in each line. I'm attaching a post explaining all the codes you can use with ObjectGeography like getting the radius or text angle. Drop me a line if you need any other help or clarification Regards, Jason <<ObjGeo.txt>> ¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤» Jason Adam Computer Draftsperson Monopros Limited Toronto, ON Attchement to (5) The possible second parameters for the ObjectGeography() function are: OBJ_GEO_MINX minimum x coordinate of an object's minimum bounding bounding rectangle (MBR), unless object is a line; if object is a line, returns same value as OBJ_GEO_LINEBEGX. OBJ_GEO_MINY minimum y coordinate of object's MBR. For lines, returns OBJ_GEO_LINEBEGY value. OBJ_GEO_MAXX maximum x coordinate of object's MBR. Does not apply to Point objects. For lines, returns OBJ_GEO_LINEENDX value. OBJ_GEO_MAXY maximum y coordinate of the object's MBR. Does not apply to Point objects. For lines, returns OBJ_GEO_LINEENDY value. OBJ_GEO_ARCBEGANGLE beginning angle of an Arc object. OBJ_GEO_ARCENDANGLE ending angle of an Arc object. OBJ_GEO_LINEBEGX x coordinate of the starting node of a Line object. OBJ_GEO_LINEBEGY y coordinate of the starting node of a Line object. OBJ_GEO_LINEENDX x coordinate of the ending node of a Line object. OBJ_GEO_LINEENDY y coordinate of the ending node of a Line object. OBJ_GEO_POINTX x coordinate of a Point object. OBJ_GEO_POINTY y coordinate of a Point object. OBJ_GEO_ROUNDRADIUS diameter of the circle that defines the rounded corner of a Rounded Rectangle object, expressed in terms of coordinate units (e.g. degrees). OBJ_GEO_TEXTLINEX x coordinate of end of a Text object's label line. OBJ_GEO_TEXTLINEY y coordinate of end of a Text object's label line. OBJ_GEO_TEXTANGLE rotation angle of a Text object. Where OBJ_GEO_MINX = 1 OBJ_GEO_LINEBEGX = 1 OBJ_GEO_POINTX = 1 OBJ_GEO_MINY = 2 OBJ_GEO_LINEBEGY = 2 OBJ_GEO_POINTY = 2 OBJ_GEO_MAXX = 3 OBJ_GEO_LINEENDX = 3 OBJ_GEO_MAXY = 4 OBJ_GEO_LINEENDY = 4 OBJ_GEO_ARCBEGANGLE = 5 OBJ_GEO_TEXTLINEX = 5 OBJ_GEO_ROUNDRADIUS = 5 OBJ_GEO_ARCENDANGLE = 6 OBJ_GEO_TEXTLINEY = 6 OBJ_GEO_TEXTANGLE = 7 Michael F. Branagan Home/Casa: 10207 Green Holly Terrace Silver Spring, MD 20902-5812 Voice: (301)-754-0160 Fax: (301)-754-0160 Email: [EMAIL PROTECTED] Web: none Office/Officina: USEPA, Office of Policy 401 M Street, SW (Room 3208) Washington, DC 20460 Voice: (202)-260-7569 Fax: (202)-260-6732 Email: [EMAIL PROTECTED] Web: www.epa.gov ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]