OpenMap, JNI, and C++

Hi Folks,

I have a requirement to add digital maps (CADRG format) to a C++
application. Although the app is developed using Microsoft DevStudio 6.0 we
DO NOT use any MFC or WIN32 calls. Were using a 3rd party graphical library
by RogueWave called zApp. Unfortuneately zApp is no longer supported. zApp
only knows a few primitives: lines, points, bitmaps. We are also using a
GIS called Hipparchus by geoddyssey.com. Hipparchus does not know about
maps per say but it knows all about projections, locations, etc. We
actually wrote the code to display all the lines making up political
boundaries, rivers, etc for our map display. We used NIMA's vmap lvl-0.

Enter digital maps. Seems like I have a couple of options:

1. Try and find C++ code to display digital Compressed ARC Digitized Raster
Graphics and add it to our other code that knows how to draw things.

2. Swap out Hipparchus and zApp and use something like ESRI's Map Objects.

3. Swap out Hipparchus and zApp and try and use JNI to communicate between
C++ objects and OpenMap. Or use JNI to just use the CADRG classes.

I'm going out tonight to buy "The JAVA Native Interface" by Shen Liang.
I've only taken a couple of JAVA courses so this outta be some fun.

Any success or failure stories about "linking" OpenMap to an already
established C++ application?

Thanks,

John Mairs

(703) 808-6788

p.s. I previously sent this to openmap@bbn.com

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