DK - In-Memory Layers, animation/tracking
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Q10327 -  Please explain how In-Memory and On-Disk layers work in the DK. I am having difficulty accessing shapes from the layers. To manipulate an object, you first must access it from a layer. With the TatukGIS DK, a vector layer can be either in-memory or on-disk. In-Memory layer This means that the whole ... (Modified: 2006-06-02)

Q10583 -  Can DK render data in a time series animated fashion using a temporary modeling layer? We need the ability to quickly (perhaps every second or two) change the properties (color, size, etc. of 50,000 or more objects, so our requirements are too demanding from most GIS components. Yes. Use what we cal ... (Modified: 2004-12-17)

Q10382 -  Does the DK allow for the use of animation layers - e.g. a map layer on which you can place objects (points) which can be moved around under program control with no screen refreshes? I am thinking of, for example, a GPS vehicle tracking system involving a large numbers of vehicles. Yes, certainly. ... (Modified: 2004-12-17)

Q10544 -  I have a DB table that has the coordinate locations of points. Is there a DK function to display icon/bitmaps in the proper map locations using the point coordinates in the DB table? Yes, use: add TGIS_ShapePoint Then, for each shape: shp.Params.Marker.Symbol : SymbolListPrepare( 'icon.bmp' Refer ... (Modified: 2007-02-19)

Q10309 -  Can we dynamically build layer from X/Y points stored in some database, say oracle or sql server? There seem be classes for this but we are not sure how to implement this functionality. Yes, this is possible but a small effort is required. Basically you should construct in-memory layer and add point ... (Modified: 2004-12-17)

Q10482 -  How can I build an in-memory layer and change colors in Visual C+ An important consideration is to perform the proper casting. This is the source: IXGIS_LayerVector ll ; IXGIS_ShapePoint shp ; IXGIS_Utils utl ; IXGIS_ParamsSectionVector prm ; IXGIS_ParamsMarker prmmrk ; utl. CreateDispatch( "TatukGIS ... (Modified: 2004-12-14)

Q10218 -  Are there restrictions placed on layers created from data sources other than SHP, E00, MID/MIF, TAB, DXF, or DGN? Any vector layer is created from the same basic class: TGIS LayerVector. In fact you can create an in-memory XGIS LayerVector object and then save it to any supported format. ... (Modified: 2003-11-21)

Q10668 -  How can I store/read the configuration for in-memory (non-persistent) layer? I tried to use the project file, but a non-persistent layer is ignored. This is logical. Project files contain no knowledge of how to recreate a non-persistent layer. You must add such action on your own. For example: proce ... (Modified: 2006-01-10)