BUFFERIMAGE AND VECTOR DATA FILE DRAWING PROBLEM

Question

THERE IS A VECTOR DATA FILE OF A COUNTRY/REGION OF CERTAIN PORTION. THAT IS FILE CONTAINS ONLY DATA IN (X,Y,Z) FORMAT OR ITS COLOR CODING OR WHAT TYPE OF SHAPE IT IS GIVEN BELOW
shape: Line, Color: red
no of vertices: 3
(234,543,45)
(34,567,345)
(76,234,345)
like above. a vector file exists. file is very heavy with lot of information. one needs to read the file and draw in java.
My problem is: i am reading the file properly, in paint function i have created BufferedImgae, createGraphics all necessary actions. i have also used rubber binding. using rubber binding when i select few portion of the map i found it is taking
lots of time to draw. once it is drawn when next time i am using RUBBER BAND SELECTION EXCEPTION occurs saying HEAP OUT OF MEMORY like.
one more thing if i used affinetransform it is simply zooming completely distorting my map defeating entire purpose.
how i can solve above problem using bufferedimage such that i can draw vector data file which should be faster when redrawing also using rubber band as well.
thanks in Advance
Roy

Answer 1

I have completely no idea what you mean by rubber banding. But you shouldn't be creating a BufferedImage and parsing a file inside of a gui component's paint function.
one more thing if i used affinetransform it is simply zooming completely distorting my map defeating entire purpose.AffineTransform is a transformation from one 2D coordinate system to another. It probably wont be as useful in a 3D environment such as your vector data file.