Hi, As you know I am using Wt for my project (Collaborative Mapping Platform).its has good features when we ignore Wt Internal Error. I had also created an openlayers widget and will contribute if you are interested. the widget creation is not finished yet. A peek is at lsi.iiit.ac.in/wt/vgis.wt. It has more features than WGoogleMap it includes google map also. All I have done is with the help of you and the community.
Now I want to read shapefile directly and display point,line or polygon using WPaintedWidget. for that I need the following thing I need to set the bounding box of the painted widget so that i can load points directly I have a ESRI shapefile called test.shp which contains seven points I can open it and read the points one by one using OGR. the spatial reference system (boundingbox) : xMin,yMin -63.5551,-20.6821 : xMax,yMax -40.053,-3.03993 These terms may be new to you and community because these are realed to GIS. All I need to know from you is how to set the coordinate system of wt's WPaintedWidget to the above given xMin,yMin -63.5551,-20.6821 : xMax,yMax -40.053,-3.03993 Which can help me in this part?. what should I learn?. Does WTransform or setting world transform can do the job? If yes how? Expecting a good helping hand from you or community -- Rashad
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