Problems with .obj import & export (normalizing mesh)?

Support Modeling
1

Hello all: Problem Solved. Method Posted Below.

I have been working on a project where we require a model of the world with verticies in exact positions of their lat lon counter part in Decimal Degrees format. I took this model and converted it to .obj format and then loaded that model into blender so that I could remove the geopolitical country borders(all I care about is the outline of the world). This model is going to be rendered real time inside a visualization tool. The problem that I am having is that when ever I export to a Wavefront .Obj from blender it changes the values of the verticies.

So a number that was formated like DDD.dddddd is now formated like x.xxxxxxx. Which is way off from the number that I expect. I need “v 063.41697 080.59133 000.00000” Blender gives me “v 1.471474 -0.404509 0.000000”. (No these are not correlated)

Does anyone know how to prevent this conversion from taking place?

Does anyone know the algortihm that is converting my model’s verticies so that I can convert it back to the number I expect?

Any help will be strongly appreciated.
—Thanks,
Raymond Chandler III

2

I solved the problem. When importing an obj file blender will clamp the values within a specified range, scaling the model porpotionally. The default for my models were 10.0. You can turn this off by setting the clamp value to 0 when you import the model. It will not scale the model and when you go to export it back out later the verticies will have the same values.