Hi deep,
Thanks for your post and questions.
I can give you some comments about your questions, hope this helps somehow.
1. Is it possible to show different bitmap icons to locate my points in single memory feature layer. If so, how to do that.
A: Yes, you could implement this functionality by ValueStyle. ValueStyle means different style can be set for different column values of a layer. So you just need to add a column to your InMemoryFeatureLayer, maybe called ValueType, and then you need to specify a value when you add a feature to this InMemoryFeatureLayer. So the features have different values in the ValueType column, maybe valueA, valueB etc. then you can specify the style for every kind of value. You could take a look at a HowDoISample located at HowDoISamples\Styles\DrawFeaturesBasedOnValues which is just tell you how to use ValueStyle.
2. Am using two layer one is geotiffraster layer to display my map, and another one is memory feature layer to plot my points in my map.. but in this i can get the clicked feature in map click event.... Is it right type of layers type am using or else i want to change anythng let me know....
A: If you want to display a GeoTiff image on the map control, the GeoTiffRasterLayer is just what you need. And the InMemoryFeatureLayer is convenient for your requirement.
3.Then i need to draw custom shape on my plotted icons. how can i do this...
A: Do you mean track a shape on your map? You could take a look at the HowDoISample which locates at HowDoISamples\Editing Feature Layers\ TrackAndEditShapes. This sample shows you how to draw and edit a shape on the map.
4. Is it geoTiff is much compatible with thinkGeo, coz all your samples are using shape file. i want to confirm that by using geotiff is it possible to acheive all the features in GIS component like what ever functionalities did using shape files??
A: We also have a sample which is using a GeoTiff image. You can find it in HowDoISamples\Satellite image\LoadAStandardImageWithWorldFile. I don’t think GeoTiff is possible to achieve all the features in any GIS component like using shape files, because it is a raster data, different information stores in it from the shape file. Column information can not be used for raster data. There is also not shape information in the raster data, so the kind of GetFeatures and SpatialQuery functionalities can not be used for this type of data.
Hope this makes sense for you.
Any more questions please let us know.
Thanks,
Sun