I was in no way implying the wheel should be reinvented, in fact the code I posted was an example of how to use the MapGuideViewerAPI.js supplied DigitizePolygon(handler) function that you referred to.
I did say that I would like to see some method to clear the digitized shapes after the function's handler has been called. In MGOS 1.2 after a polygon was digitized, it was destroyed. In MGOS 2 with Fusion 1.1, the polygon stays on the map until the user closes their browser. -Mark P. -----Original Message----- From: mapguide-users-boun...@lists.osgeo.org [mailto:mapguide-users-boun...@lists.osgeo.org] On Behalf Of GordonL Sent: Thursday, January 29, 2009 1:20 PM To: mapguide-users@lists.osgeo.org Subject: RE: [mapguide-users] Fusion and Digitizing You know, you really do not need to reinvent the wheel, if you have already built a lot of code with the Basic Web Layouts. Did you know that Fusion supports some retro digitizing methods? For example, I put the following in an INVOKESCRIPT in the Flexible Web Layout: top.parent.DigitizePoint(top.OnPointDigitized); I also have the OnPointDigitized in a JS file attached to the main frame/window. So I reuse my code for both FUSION and Basic Web Layouts... Just check out the functions in the MapGuideViewerApi.js in the /www/fusion/MapGuide/ folder... They include: Refresh() SetSelectionXML(selectionXml) ZoomToView(x, y, scale, refresh) DigitizePoint(handler) DigitizeLine(handler) DigitizeLineString(handler) DigitizeRectangle(handler) DigitizePolygon(handler) They work just like the classic MapGuide Viewer API...pretty sweet. gordon Mark Pendergraft wrote: > > Absolutely. > My biggest beef with digitizing in Fusion is that when you digitize an > object (point/polygon/etc.) it stays on the map. The existing functions > don't have a clear method to remove the digitized object, and my > programming skills aren't good enough that I want to mess with it. > > It's very simple, > Add a reference to MapGuideViewerApi.js and call DigitizePolygon() > > The DigitizePolygon function requires that you pass it a handler > > Something similar to the following: > > DigitizePolygon(CreateJobByPolygon); > > function CreateJobByPolygon(polygon) { > var geomText = polygon.Count; > for (var i = 0; i < polygon.Count; i++){ > geomText += "," + polygon.Point(i).X + "," + polygon.Point(i).Y; > } > Fusion.getWidgetById('Map').setCursor('auto'); > // here you would send your geomText to a web service, or aspx page > that would turn the coordinates into a linear ring > // and then a polygon from there. The geomText variable (in this > particular situation) evaluates to something similar to > // 3,5000.00,5000.00,5050.00,5050.00,5100.00,5100.00 > } > > > Of course you can format the way the coordinates are sent to your > application any way you want. > > I would also recommend calling the DigitizePolygon() function from an > InvokeScript() widget, as I had some problems when I tried to actually > create a widget and call it from there. Also, I prefer to change my > cursor when the widget is activated, you can see I put it back to 'auto' > in the CreateJobByPolygon() function, but I like to set it to > 'crosshair' before the DigitizePolygon function is called. > > -Mark P. > > -----Original Message----- > From: mapguide-users-boun...@lists.osgeo.org > [mailto:mapguide-users-boun...@lists.osgeo.org] On Behalf Of Stefan > Dalakov > Sent: Friday, January 23, 2009 12:35 PM > To: MapGuide Users Mail List > Subject: [mapguide-users] Fusion and Digitizing > > Hi all, > From what I read here, should I conclude that digitizing functions in > Fusion are not yet fully supported ? > I need to digitize a polygon on the map and save it permanently. I have > this working with AJAX viewer, but would like to port it to Fusion > Has anyone succeeded to do this ? > > Stefan Dalakov > > > _______________________________________________ > mapguide-users mailing list > mapguide-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/mapguide-users > _______________________________________________ > mapguide-users mailing list > mapguide-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/mapguide-users > > -- View this message in context: http://n2.nabble.com/Fusion-and-Digitizing-tp2205560p2241352.html Sent from the MapGuide Users mailing list archive at Nabble.com. _______________________________________________ mapguide-users mailing list mapguide-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapguide-users _______________________________________________ mapguide-users mailing list mapguide-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapguide-users