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Sample:Current Extent to Bitmap

In today’s project we learn how to convert to bitmap the current extent of the map. In order to have the bitmap georeferenced or being tied to the ground an accompanying world file needs to be created. That way it can be used as an image layer along with the other layers of the same projection (in this case geodetic). To test the result, you can load the bitmap to Map Suite Explorer and add a vector layer in geodetic to see how the two layers align with each other.

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Sample:Custom Scale Bar

In today’s Web project, we learn how to extend ScaleBarAdornmentLayer to create a custom scale bar that is based on a projection of choice instead of the projection of the map. This can be useful when the displayed projection of the map has highly distortable distances especially at high latitudes such as Spherical Mercator (used by Google Map, Virtual Earth, Yahoo maps etc). Using a scale bar based on distance geometry of the Geodetic (WGS84) projection will give a more accurate result. Note that the CustomScaleBar class is based on MapSuiteCore and can be used in any other versions of MapSuite such as Desktop.

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Sample:Draw Custom Exception

This sample shows how you can suppress and draw exceptions in desktop overlays instead of throwing them. There is a little-known feature in the Map Suite Desktop Edition Overlay class that allows you to draw an exception in the event an exception is thrown during the drawing process. We have a default image we draw in this case; however, you can override this using the DrawExceptionCore method and draw whatever you want. By default we always throw expections, but to start drawing them you can use the Overlay.DrawExceptionMode property.

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Sample:Raster Layer to Bitmap

Today’s project is comparable to “Current Extent to Bitmap” project where we learned how to convert the current extent of the map to bitmap with its accompanying world file. Here we learn how to get the bitmap of a raster layer (in our example a Mr Sid image) and convert it to bitmap. We learn some techniques such as how to get the image size of the raster layer using ExtentHelper static functions and how to manipulate GeoImage. This project brings a good foundation for building applications converting different image formats.